Features

Wastewater re-use in the food industry

Test technician preparing test equipment for trialling a new membrane. NIG Nutritionals samples, showing feed on the left and permeate post treatment on the right. Engineers and scientists from an Auckland-based clean technology company have developed polyethylene membrane-based filters which perform at 85°C in harsh chemical environments of 1-13 pH, allowing food and industry processors […]

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Preparing hierarchical microsieves via float-casting using raspberry particles

Journal of Membrane Science. The research article ‘Preparation of microsieves with a hierarchical structure via float-casting, using raspberry particles’ has been published in the Journal of Membrane Science (Volume 642, 15 February 2022, 119941). Abstract This article describes the preparation of hierarchical microsieves via float-casting using raspberry particles. The raspberry particles consist of a larger spherical particle (the […]

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Ventilation improvements to combat mould

Tackling mould and condensation. As the UK enters a crucial winter period, trade association BEAMA has today issued clear ventilation guidance to tackle mould. The BEAMA hope the new advice will help boost much-needed public understanding surrounding the impacts of condensation and mould, and act as a valuable resource for industry. The guidance, which highlights the […]

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Membrane research beyond materials science

Journal of Membrane Science. The research article ‘Membrane research beyond materials science’ has been published in the Journal of Membrane Science (Volume 643, 1 March 2022, 119902). Abstract The majority of research in membrane separation science is focused on developing better membrane materials, yet very few of these materials are being used in commercial applications. This paper attempts to explore […]

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NX Filtration’s sustainable solution for water

Innovation is at the core of NX Filtration. NX Filtrations founder and CTO Erik Roesink (left) and CEO Michiel Staatsen (right) demonstrating the ability of its technology to remove colour and micropollutants from water in one single step. Layer-by-layer direct nanofiltration membranes. NX Filtration modules at one of its industrial clients. Treatment of surface water […]

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Office building HVAC strategies during Covid

Building and Environment. The research article ‘Investigation of HVAC operation strategies for office buildings during COVID-19 pandemic’ has been published in the journal Building and Environment. Abstract To minimize the indoor transmission of contaminants, such as the virus that can lead to COVID-19, buildings must provide the best indoor air quality possible. Improving indoor air quality […]

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Planning for the deluge

The Up-Flo Filters in twin wall chambers, verified to remove 80% suspended solids but with demonstrated removal rates of up to 98%. A new food production facility needed a drainage strategy suitable for an industrial site, to control surface water runoff and remove pollution. An advanced stormwater treatment solution was customised to meet site requirements. The Eastways […]

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Tunable membrane for high-flux membrane distillation

Journal of Membrane Science. The research article ‘A pore-size tunable superhydrophobic membrane for high-flux membrane distillation’ has been published in the Journal of Membrane Science (Volume 641, 1 January 2022, 119862). Abstract Membrane distillation (MD) has recently attracted attention as a promising solution to the freshwater crisis. We report a pore-size tunable superhydrophobic membrane for application in the […]

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Voltea helps secure water supply for manufacturer in South Africa

This Technology Focus article was first published in the October 2021 issue of Membrane Technology newsletter. Figure 1. Volteas Industrial Series 48 (IS-48) CapDI© system. Five of these systems provide enough space to house 240 CapDI modules at the manufacturing facility in South Africa (photograph courtesy of Voltea Inc). Technology developed by US-based Voltea Inc is […]

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A critical review on porous substrates of TFC polyamide membranes

Journal of Membrane Science. The research article ‘A critical review on porous substrates of TFC polyamide membranes: Mechanisms, membrane performances, and future perspectives’ has been published in the Journal of Membrane Science (Volume 641, 1 January 2022, 119871). Abstract Reverse osmosis and nanofiltration membranes commonly adopt a thin film composite (TFC) structure featuring a polyamide rejection layer formed on a porous substrate. Recent studies have […]

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3D printing for membrane desalination

Desalination. The research article ‘3D printing for membrane desalination: Challenges and future prospects’ has been published in the journal Desalination (Volume 520, 15 December 2021, 115366). Abstract Recent years have shown a growing interest in the field of 3D printing for applications in the area of water treatment and desalination. The applications for 3D printing are applicable on numerous levels from […]

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Pentair launches X-Flow Xpert at Aquatech

Pentair X-Flow Xpert Web App screenshots. Pentair X-Flow Xpert features Xpert Assistant, the worlds first conversational interface in the membrane filtration industry. Pentair, a leading global water treatment and sustainable solutions provider, will launch the Pentair X-FlowTM Xpert Web App during Aquatech Amsterdam 2021. This innovative web app instantly guides the selection of the ideal […]

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Protecting building occupants from outdoor airborne particulate hazards

Atmospheric Environment. The research article ‘Protecting Building Occupants Against the Inhalation of Outdoor-Origin Aerosols’ has been published in the journal Atmospheric Environment. Abstract During normal operations, buildings can protect their occupants from outdoor airborne particle hazards of all types, including airborne pollutants. A long-term international research effort has advanced our knowledge of building protection physics. Recently […]

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Eaton’s cleaning keeps trains on track

In the Schweizerische Südostbahn (Swiss Southeast Railway) cleaning system, three of Eatons Topline single bag filter housings are connected in a parallel arrangement to ensure that the cleaning water, which can be used many times, is of a consistently high quality. ©2021 BvL Oberlächentechnik. All rights reserved. Eatons Hayflow filter elements with retention rates of […]

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Filtration industry gathers at WEFTEC

Organisers say WEFTEC 2021 is about reconnection and reuniting the water sector in person. NX Filtrations hollow fibre nanofiltration membranes in operation at the site of an aerospace multinational located in Hungary. Veolia will be exhibiting Bioactiflo, a high-rate biological clarification process for enhancing biological BOD removal during the treatment of stormwater. The Leopold Texler […]

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Microplastic forum at FILTECH 2022

Whether in the sea, in the soil or in the air microplastics pollute people and the environment. (image: Unsplash, Sören Funk) For water without microplastics and micropollutants: Research at Wasser 3.0. Left: Dennis Schober, Innovation & Transfer, right: Dr. Katrin Schuhen, inventor & managing director. (image: Wasser 3.0) Scientific exchange and latest research news: Conference […]

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Modeling of membrane formation via phase inversion

Journal of Membrane Science. The research article ‘A review on models and simulations of membrane formation via phase inversion processes’ has been published in the Journal of Membrane Science (Volume 640, 15 December 2021, 119810). Abstract Phase inversion processes, in which a polymer is transformed from a thin solution film into a solid matrix upon exposure to another […]

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Donaldson iCue Gateway speeds dust collection

The Donaldson iCue Gateway can be installed on dust collectors with ease and speed freeing up time to focus on productivity. The Internet of Things has transformed filter monitoring by allowing remote 24/7 access to data via a laptop, tablet or phone. Ensuring optimum performance from a facility’s industrial dust and fume collectors can be […]

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Depth filtration in bioprocessing – new opportunities for an old technology

Current Opinion in Chemical Engineering. The research article ‘Depth filtration in bioprocessing — new opportunities for an old technology’ has been publiished in the journal Current Opinion in Chemical Engineering (Volume 34, December 2021, 100746). Abstract Depth filtration has a long history in both bioprocessing and water treatment, with the earliest records of water purification by depth filtration dating back […]

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Aquammodate’s single-pass water filtration

Aquammodate membrane prototype undergoing testing in the lab. (Image: Aquammodate) The technology emulates the way in which diatoms stablise their cell membranes mechanically by forming a cell wall made from silica. (Image: Wikipedia/Wipeter) Diatoms build their cell walls from silica for mechanical protection. (Image: Flickr/ @spacenoob) Coloured electron microscopy of a diatom. (Image: Flickr/@zeissmicro) A […]

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Granular bed filtration of a liquid aerosol

Powder Technology. The research article ‘Granular bed filtration of a liquid aerosol’ has been published in the journal Powder Technology. Abstract Liquid aerosols are found in many industrial sectors, particularly in the mechanical industry (oil mists). Granular bed (GB) filtration could be an interesting means for the removal of these liquid aerosols, due to their high […]

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Recycled reverse osmosis membranes for forward osmosis technology

Desalination. The research article ‘Recycled reverse osmosis membranes for forward osmosis technology’ has been published in the journal Desalination (Volume 519, 1 December 2021, 115312). Abstract An alternative use of end-of-life reverse osmosis (RO) membranes is proposed for forward osmosis (FO) application as recycled FO (RFO) membranes and transformed recycled FO (TRFO) membranes. Different passive cleaning protocols in pilot plant […]

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Nanofiber composite membrane mimicks ‘reinforced-concrete’

Journal of Membrane Science. The research article ‘Nanofibers interpenetrating network mimicking “reinforced-concrete” to construct mechanically robust composite membrane for enhanced CO2 separation’ has been published in the Journal of Membrane Science (Volume 639, 1 December 2021, 119749). Abstract The electrospun nanofiber mat (NFM) with 3D networks has advantages of high porosity and large specific surface area, but its porous […]

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Pall’s contamination control

Examples of fluid contaminants. The relationship between Beta, efficiency, and downstream fluid quality. Simplified schematic illustrates how a multi-pass test system is constructed. Hydraulic filter locations. Contamination in hydraulic and lube system fluids is generally recognized as the single most important factor in reducing the reliability and longevity of the equipment. This article examines how […]

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GKD’s pollen filter for high performance

GKD developed a filter insert made of die-cut rounds of four layers of Volumetric Mesh and one layer of square mesh for the Phantom Athletics training mask. With the additional module developed by GKD, the Phantom Athletics training masks offer an effective pollen filter. For sportspeople, the filter module from GKD provides long-awaited, reliable protection […]

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PVDF filters show promise for medical use

Journal of Membrane Science. The research article ‘Ultra-thin and highly porous PVDF-filters prepared via phase inversion for potential medical (COVID-19) and industrial use’ has been published in the Journal of Membrane Science (Volume 639, 1 December 2021, 119710). Abstract The COVID-19 pandemic has resulted in an increased demand for air-filtration based personal protective equipment. Existing filter masks are […]

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HEPA filters in indoor air purification

David Moulton, UK managing director of Camfil. Considering correct filter installation in buildings and how to ensure supplementary HEPA air purification systems are fit for purpose. If we go back 30 years the role of air filters was to initially protect HVAC systems. The air filter was designed to protect the heating and cooling coils […]

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Eclipse filters boost Indian automotive market

The filtered fluid flows through the return slots located in the upper section of the magnetic core, down through the centre and exits through the outlet port. Kleenoil installed an Eclipse Magnetics Micromag high-performance filtration system inline before the machines pump to minimise the number of ferrous particles contacting the grinding wheel. The Micromag filter […]

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Membrane design and synthesis for membrane distillation

Desalination. The research article ‘Comprehensive review of membrane design and synthesis for membrane distillation’ has been published in Elsevier’s Desalination (Volume 518, 15 December 2021, 115168). Abstract Water scarcity is a grand challenge that requires continuous exploration of new desalination technologies in order to augment the global supply of fresh water. In this context, membrane distillation (MD) is […]

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Review of membrane design and synthesis for membrane distillation

Desalination. The research article ‘Comprehensive review of membrane design and synthesis for membrane distillation’ has been published in Elsevier’s Desalination (Volume 518, 15 December 2021, 115168). Abstract Water scarcity is a grand challenge that requires continuous exploration of new desalination technologies in order to augment the global supply of fresh water. In this context, membrane distillation (MD) is […]

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Innovation shapes pharma filtration

Innovation-TCO-profitability causation loop. While the pharmaceutical industry is expanding with new product constantly emerging, it still needs innovations from filter suppliers. Here, Bob Mcilvaine, president, Mcilvaine Company argues that the innovation-total cost of ownership-profitability causation loop is the route to better products and higher profits. The pharmaceutical industry is growing faster than other industry sectors. […]

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Lignin modified PVDF membrane for oil filtration

Journal of Water Process Engineering. The research article ‘Lignin modified PVDF membrane with antifouling properties for oil filtration’ has been published in the Journal of Water Process Engineering (Volume 43, October 2021, 102248). Abstract Lignin is a sustainable chemical that can be extracted from a wide range of lignocellulosic biowaste. It was blended into polymeric membranes to improve […]

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Eaton protects clean energy supplies

In the south of Israel, the power of the sun is being harnessed by one of the world’s largest solar power towers, covering an area of 740 acres (300 hectare) that supplies more than 100,000 households with sustainable electricity. Eaton Type 31L gas/liquid separators can filter steam to remove up to 99% of all fluid […]

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Advances in membrane technologies for saline wastewater treatment

Desalination The research article ‘Current advances in membrane technologies for saline wastewater treatment: A comprehensive review’ has been published in Elsevier journal Desalination (Volume 517, 1 December 2021, 115170). Abstract The saline wastewater from various sources including agriculture and industrial activities, appears to have high salt concentration, organic content and other pollutants which can harm the environment. Thus, saline wastewater […]

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A review of emerging desalination technologies

Desalination. The review article ‘Emerging desalination technologies: Current status, challenges and future trends’ has been published in Elsevier journal Desalination (Volume 517, 1 December 2021, 115183). Abstract Emerging technologies present many new possibilities for diversifying the desalination industry, which is currently dominated by thermal desalination, and reverse osmosis. In this review, we highlight recent developments in emerging desalination technologies, focusing on those nearing commercialization i.e. forward […]

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FiltXPO – clean water in a changing climate

The current paradigm is clean water requires energy from coal-powered plants resulting in CO2 generation. We must develop low energy demand ways to purify water. FiltXPO panelist Hal Alper, president and chief science officer, MYCELX Technologies Corporation. Every company involved in industrial manufacturing more than likely uses process water. In general, you cant operate a […]

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Pervaporation membrane materials: Trends and perspectives

Journal of Membrane Science. The research article ‘Pervaporation membrane materials: Recent trends and perspectives’ has been published in the  Journal of Membrane Science (Volume 636, 15 October 2021, 119557). Abstract Pervaporation is a molecular separation membrane technology for selective permeation of water or organic compounds from organic-water mixtures or organic-organic mixtures. The pervaporation process is controlled by thermodynamic partitioning and kinetic […]

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Evonik’s green membranes transform biogas

Evoniks production site in Schoerfling, Austria. (Image: Evonik) The highly selective SEPURAN Green hollow-fibre membranes from Evonik efficiently remove the carbon dioxide from the raw biogas. (Image: Evonik) The membranes are made of specially developed Evonik high-performance polymers that are highly resistant to pressure and temperature. (Image: Evonik) At Germany’s largest biogas plant, biogas will […]

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Virus filter scalability

Biologicals. The research article ‘Virus filter scalability: Demonstration of consistent viral clearance across laboratory and manufacturing scales’ has been published in the journal Biologicals. Abstract Virus removal filtration processes in biopharmaceutical manufacturing are developed, optimized and validated for viral clearance using laboratory scale filters. Thus, the scalability of these filters is critical for accurately extrapolating filtration […]

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Osmotic dilution/concentration using FO membranes

Desalination. The research article ‘Comprehensive review of osmotic dilution/concentration using FO membranes for practical applications’ has been published in Elsevier journal Desalination (Volume 515, 1 November 2021, 115190). Abstract Forward osmosis (FO) has attracted growing attention in the field of membrane-based separation technology over the last two decades. Despite recent advancements in various osmosis-assisted processes, few studies have succeeded in commercialization. […]

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Lakeside’s Closed Loop Reactor at Bentonville.

Lakesides Closed Loop Reactor at Bentonville. At Bentonville, Lakesides rotors were still working after 35 years of operation. Operations supervisor Chris Earl with manager, Nancy Busen at Bentonville Water Resource Recovery Facility. A fast-growing US city meant that the city’s water resource recovery facility, which mainly receives domestic wastewater, saw its 2019 average daily flow […]

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Microplastic removal in drinking water treatment processes

Water Research. The research article ‘Microplastic removal in conventional drinking water treatment processes: Performance, mechanism, and potential risk’ has been published in the journal Water Research (Volume 202, 1 September 2021, 117417). Abstract The effectiveness of traditional drinking water treatment plants for the removal of Microplastics (MPs) in the size range of tens of micrometers is currently uncertain. […]

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Eaton helps preserve the purity of olive oil

The quality of high-class extra virgin olive oils comes from an early harvest, when the olive fruit is at its ideal ripeness to provide the best attributes in an olive oil. BECOPAD depth filter sheets are made of high-purity cellulose fibres and do not rely on mineral components such as diatomaceous earth. Extra virgin olive […]

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Retention characteristics of sterile filters

The research article ‘Retention characteristics of sterile filters – Effect of pore size and structure’ has been published in the Journal of Membrane Science (Volume 635, 1 October 2021, 119436). Abstract Sterile filtration is used to remove microorganisms in the processing of most recombinant proteins, but there are significant challenges in applying this technology to large biotherapeutics like Live-Attenuated […]

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Microplastic removal at WWTPs by tertiary sand filtration

Chemical Engineering Journal. The research article ‘Release of microplastic particles to the aquatic environment via wastewater treatment plants: The impact of sand filters as tertiary treatment’ has been published in Chemical Engineering Journal. Abstract Monitoring of microplastics (MP) release into the aquatic environment is an important topic and proposed point sources for microplastics are wastewater […]

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HRS believes Covid-19 needs a flexible approach

Covid-19 means that a more flexible approach needs to be taken towards investment projects during AMP7. Efficient equipment solutions, such as the use of corrugated tube heat exchangers, are important where CapEx projects are going ahead. Environmental measures, such as sludge and effluent management, are a key priority under AMP7. The water industry in England […]

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Silent & sustainable air purification from Dexwet

Dexwet Wet Air Filters patented staggered rod system captures particles and allows clean air to flow through. A study has confirmed the effectiveness of air filtration technology with a wet filter design. It removed 99.9% of airborne dust, pollen, and nano-fine particles such as bacteria and viruses in a classroom in under 2.5 hours. An […]

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Porosity heterogeneity and transport properties of multibore membranes

The research article ‘How does porosity heterogeneity affect the transport properties of multibore filtration membranes?’ has been published in Elsevier’s Journal of Membrane Science. Abstract The prediction of pressure and flow distributions inside porous membranes is important if the geometry deviates from single-bore tubular geometries. This task remains challenging, especially when considering local porosity variations caused […]

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Knowledge sharing & co-operation the GKD way

The Vacubelt 2015 filter belt from GKD has been the globally established standard in the field of FGDP gypsum dewatering for many years. (Image: ThyssenKrupp Fördertechnik) Porometric mesh from GKD proves itself in drum filters for mechanical water cleaning. (Image: GKD) The GKD Group has always invested in global work distribution. Yet strong growth and […]

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SDS’s flagship water recycling system

An example of how the SDS GWOD system works in a hotel setting. The GWOD is capable of significantly improved investment payback when compared to conventional MBR greywater systems, especially for larger-scale systems. In the GWOD system, greywater is collected and then pumped through a disk pre-filter system and dosed with a small amount of […]

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Sustainable brine management: water, energy and mineral recovery

The research article ‘Sustainable brine management from the perspectives of water, energy and mineral recovery: A comprehensive review’ has been published in Elsevier journal Desalination (Volume 513, 1 October 2021, 115055). Abstract Desalination activities around the world are increasing as a result of water scarcity. The discharge of brine from desalination processes poses a significant threat to the environment. Large […]

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Energy consumer to net producer with Sulzer

The E_OS project has made the wastewater treatment plant a net producer of energy. (Image: CreativStudio Bogataj) Sulzers HST turbocompressors reduced total power consumption by 400 kW. The HST turbocompressors offered quieter ­operation, high availability and very low ­maintenance costs. The Energy Optimization through Sludge Treatment (E_OS) project in Vienna is a pioneering facility designed […]

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Treatment of table olive processing wastewater

The research article ‘Membrane filtration, activated sludge and solar photocatalytic technologies for the effective treatment of table olive processing wastewater’ has been published in the Journal of Environmental Chemical Engineering (Volume 9, Issue 4, August 2021, 105743). Abstract The table olive industry produces a high quantity of wastewater (TOPW) whose management represents a challenge due to its environmental […]

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Direct air capture from Climeworks

Climeworks direct air capture technology can reach a net carbon dioxide removal efficiency of more than 90%. (Image: Climeworks/Julia Dunlop) Climeworks new large-scale direct air capture and storage plant, Orca, under construction. (Image: Climeworks) When completed, Orca will be able to capture 4,000 tonnes of CO per year. (Image: Climeworks) Climeworks, a Swiss company specialising […]

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The effects of ventilation and filtration on PM2.5 in offices

The research article ‘The effects of ventilation and filtration on indoor PM2.5 in office buildings in four countries’ has been published in the journal Building and Environment (Volume 200, August 2021, 107975). Abstract Fine particulate matter (PM2.5) is an airborne pollutant associated with negative acute and chronic human health outcomes. Although the majority of PM2.5 research has focused on outdoor […]

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Filtration in gas processing systems

Gas processors do not always give filtration the priority it deserves as a means to improve product quality and protect vital equipment from damage. The Gas Filtration Test Skid is a new development that can assess contamination levels and process flows while a gas plant is in operation. Figure 1. Overview of the spectrum of […]

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Maximizing selectivity: An analysis of isoporous membranes

The research article ‘Maximizing selectivity: An analysis of isoporous membranes’ has been published in Elsevier’s Journal of Membrane Science (Volume 633, 1 September 2021, 119389). Abstract Membranes are compelling candidates for many separation-based industrial processes. However, all synthetic membranes are subject to well-recognized permeability-selectivity trade-offs that hinder their use in advanced applications. Having uniform nanoscale pore size, isoporous nanofiltration and ultrafiltration membranes […]

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Eaton’s filtration system for re-use of process water

The reduction of freshwater consumption by filtering and reusing process water saves process costs in paper manufacturing. (Image: Getty Images) Eatons modular F-Series consists of multiple filter stations and offers the flexibility needed to adapt to process-related changes. (Image: Eaton) Water is indispensable in many industrial production processes and companies are searching for ways to clean and […]

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Ultrafiltration as tertiary treatment for municipal wastewater reuse

Separation and Purification Technology. The research article ‘Ultrafiltration as tertiary treatment for municipal wastewater reuse’ has been published in the journal Separation and Purification Technology. Abstract Water reuse is an enduring topic that benefits the society and future generations of mankind. Ultrafiltration (UF) is one of the most cost-effective treatment technologies for improving water quality. In […]

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Regeneration of filter press fabrics in the mining sector

The research article ‘Regeneration assessments of filter fabrics of filter presses in the mining sector’ has been published in the journal Minerals Engineering (Volume 168, 1 July 2021, 106922). Abstract In addition to investment costs, ongoing operating costs represent a major economic aspect of a process plant. From an entrepreneurial point of view, these should be as low […]

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Dexwet’s silent & sustainable air purification

Gregory Scott Newsome, chief financial officer and board director at Dexwet Air Filters. Dexwet Wet Air Filter’s patented staggered rod system captures particles and allows clean air to flow through. An independent field study capturing over two million data points has confirmed the effectiveness of air filtration technology with a wet filter design. It successfully […]

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Combining membrane filtration and flocculation for microalgae harvesting

Water Research The research article ‘Combining patterned membrane filtration and flocculation for economical microalgae harvesting’ has been published in Water Research. Abstract Membranes have a lot of potential for harvesting microalgae, but mainly membrane fouling and high harvesting costs linked to low fluxes are hampering their breakthrough. Patterned membranes can reduce fouling by enchancing local turbulences […]

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Pretreatments to mitigate fouling in membrane distillation

Desalination. The research article ‘Comparative analysis of various pretreatments to mitigate fouling and scaling in membrane distillation’ has been published in Elsevier journal Desalination (Volume 509, 1 August 2021, 115046). Abstract Membrane distillation (MD) has shown strong promise for treating hypersaline produced water (PW) streams. Scaling and fouling on the membrane surface, however, have been identified as major challenges for […]

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GEA puts an end to the stick-slip effect

With the automatically operating Active Torque Control for CF decanters, GEA has developed a market innovation that makes the production process for starch and casein not only more reliable but also as profitable as possible under stick-slip conditions. (Image: GEA) How GE’s active torque control for decanter centrifuges increases economic efficiency. Creaking doors, squeaking brakes […]

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Cost optimization of multi-stage gap membrane distillation

Journal of Membrane Science. The research article ‘Cost optimization of multi-stage gap membrane distillation’ has been published in Elsevier’s Journal of Membrane Science (Volume 627, 1 June 2021, 119228). Abstract Estimating the costs and performance of emerging separation technologies is technically challenging because of the complex design space and the interdependence between system and module-level design decisions. This […]

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Lakeside Equipment in auto rake system retrofit integration

The Lakeside Hydronic T Screen at the City of Washingtons wastewater treatment plant in Indiana. To maximise available space, Lakesides T-Series Trash Rake has rack installations up to 90°. At the City of Washingtons WWTP, the system features a double 12 ft-wide telescoping design to rapidly remove the anticipated debris from storm events. A wastewater […]

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State-of-the-art of renewable energy sources used in water desalination

Desalination. The review article ‘State-of-the-art of renewable energy sources used in water desalination: Present and future prospects’ has been published in Elsevier journal Desalination (Volume 508, 15 July 2021, 115035). Abstract The last decade has seen a worldwide increase in the use of alternative energy sources, especially renewable energy (RE), including its application in desalination. In the past many […]

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Pusher centrifuge technology evolves

The entire portfolio of Metris addIQ for filter centrifuges. Particle size distribution in a pusher centrifuge, with and without the use of the Andritz GentleFeeder feeding system. The new Andritz pusher centrifuge ecoOne. A pusher centrifuge is a continuously operating filtration centrifuge used for processing bulk products in the chemical or mineral industries. This article […]

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Treatment of greenhouse wastewater for reuse or disposal

Desalination. The research article ‘Treatment of greenhouse wastewater for reuse or disposal using monovalent selective electrodialysis’ has been published in Elsevier journal Desalination (Volume 507, 1 July 2021, 115037). Abstract Minimal liquid discharge (MLD) in greenhouses minimizes the volume of discharged wastewater, thereby increasing the volume of effluent that may be reused. Sodium accumulation in wastewater is often […]

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Making zero-liquid discharge desalination greener

Desalination. The research article ‘Making zero-liquid discharge desalination greener: Utilising low-grade heat and vacuum membrane distillation for the regeneration of volatile draw solutes’ has been published in Elsevier journal Desalination (Volume 507, 1 July 2021, 115034). Abstract Desalination is still a rather energy intensive process, and is also associated with the discharge of highly saline and chemically contaminated brine; […]

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Optimising the AD circular economy

Microbiology and chemical engineering experts developed the Evogen Biogas Additive at Genesis Biosciences South Wales laboratories. Anaerobic digestion (AD) is fast becoming an integral part of the wastewater treatment process for local authorities and private companies. Microbiologists and chemical engineers at a Cardiff-based biotech company have developed an economical, low carbon footprint solution to optimise […]

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The hybridization of thermally-driven desalination processes

Desalination. The research article ‘The hybridization of thermally-driven desalination processes: The state-of-the-art and opportunities’ has been published in Elsevier journal Desalination (Volume 506, 15 June 2021, 115002). Abstract Water scarcity is a global issue that needs to be urgently addressed to alleviate its adverse impacts on social and economic development. Desalination has been touted as an attractive alternative that can sustainably […]

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Membrane technologies for space engineering

Journal of Membrane Science The research article ‘Membrane technologies for space engineering’ has been published in Elsevier’s Journal of Membrane Science (Volume 626, 15 May 2021, 119177). Abstract Space engineering focuses on the design of technical solutions for deep Space exploration. The main requirements, particularly in long-duration manned missions, deal with the minimization of the volume, weight, power […]

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Protecting people with collaboration

Metrolink has bolstered its efforts to keep passengers and employees safe by partnering with Purafil, an international air filtration systems specialist. (Image: Metrolink) Together, the companies have worked to install the latest air filters on all train cars to ensure the air that passengers and employees breathe throughout their journey is safer and cleaner. (Image: […]

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Fiber length and hollow fiber nanofiltration membrane performance

Journal of Membrane Science The research article ‘Bridging the gap between lab-scale and commercial dimensions of hollow fiber nanofiltration membranes’ has been published in Elsevier’s Journal of Membrane Science (Volume 624, 15 April 2021, 119100). Highlights MgSO4 retention by hollow fiber nanofiltration membranes at varying conditions. Significant concentration polarization at industrially relevant conditions. Commonly used mass transfer correlations have […]

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Water filtration media cleaning

Mark Dunne, co-founder and MD of WasteSURE with the new machinery. Product focus – WasteSURE Media Wash 3 A water filtration media specialist based in Bury, Greater Manchester in the UK, has partnered with the manufacturers of a high yield screening plant to develop a new piece of machinery which removes up to 70% more […]

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Advances in air filtration technologies

Materials Today: Advances The review article ‘Advances in air filtration technologies: structure-based and interaction-based approaches’ has been published in Elsevier journal Materials Today: Advances. Abstract Intensifying air pollution has engendered growing public health concerns due to its broad and adverse effects on humanity. As a result, the development of air filtration technologies has received increased […]

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Flowrox offers complete filtration picture

The Flowrox Smart Cube collects the data. System is configured as read-only, so it is completely safe and cannot disturb the process control in any way. Operators at the filtration plant of Finnish metal producing company Terrafame lacked detailed information about the performance of its tower press filters. A local filtration specialist suggested its Smart […]

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A compact hybrid batch/semi-batch reverse osmosis (HBSRO) system

Desalination The research article ‘A compact hybrid batch/semi-batch reverse osmosis (HBSRO) system for high-recovery, low-energy desalination’ has been published in Elsevier journal Desalination (Volume 504, 15 May 2021, 114976). Abstract Batch reverse osmosis (RO) is a promising approach to high-recovery desalination. It has low energy consumption, but system size increases sharply with recovery because of the need for […]

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New filter coating helps fight viruses

The Active Shield filter is designed for indoor air purifiers, for use in cabin air filters in transportation and in industrial filtration settings. The patented technology uses a sonochemical assistant treatment and ultrasound waves to coat filtration media with metal-oxide, giving it antiviral and antibacterial properties. The copper-oxide impregnated into the Active Shield filtration media […]

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Optimization framework for the design of reverse osmosis desalination plants

The research article ‘An optimization framework for the design of reverse osmosis desalination plants under food-energy-water nexus considerations’ has been published in Elsevier journal Desalination (Volume 503, 1 May 2021, 114937), Abstract Due to a growing population, globally depleting water supplies, as well as the effects of climate change, demands for water are ever increasing. Reverse osmosis desalination […]

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The environmental impact of polymeric membrane production

Journal of Membrane Science The research article ‘Assessment of the environmental impact of polymeric membrane production’ has been published in Elsevier’s Journal of Membrane Science (Volume 622, 15 March 2021, 118987). Abstract Polymeric membranes are important in advanced separation technologies because of their high efficiency and low environmental impact. However, procedures for membrane production are far from sustainable […]

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Atlas Copco blower technology for industrial ETPs

Atlas Copcos ZS VSD+ rotary screw blowers deliver 100% oil-free, pulsation-free air for industrial effluent treatment plants. Filter backwashing at a wastewater treatment plant. A sequence batch reactor at a wastewater treatment plant. Requirements for water diffused aeration and filter backwashing in industrial effluent treatment plants are particularly stringent. The cleaning of process waste or […]

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Recent advances in flow-electrode capacitive deionization

Desalination. The research article ‘Improving the feasibility and applicability of flow-electrode capacitive deionization (FCDI): Review of process optimization and energy efficiency’ has been published in the Elsevier journal Desalination (Volume 502, 15 April 2021, 114930). Abstract Flow-electrode capacitive deionization (FCDI) is a new electrochemical-based desalination technology that addresses the limitations of preceding CDI processes through the use of […]

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Sealing success in a ‘continuous loop’ system

A sugar refinery saved £181,000 a year by installing dual mechanical seals with a water management system. A continuous loop water management system constantly recycles seal flush water. The EasyClean seal support vessel supports high standards of hygiene. The need to conserve water is becoming increasingly urgent and food and drink producers are under pressure […]

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New developments in membranes for bioprocessing

Journal of Membrane Science The research article ‘New developments in membranes for bioprocessing – A review’ has been published in Elsevier’s Journal of Membrane Science (Volume 620, 15 February 2021, 118804). Abstract Membrane systems play an essential role in the production of all biopharmaceuticals. This includes initial clarification of cell culture fluid by both depth filtration and tangential flow […]

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Organic solvent resistant materials for membrane separations

Chemosphere The review article ‘Recent developments of organic solvent resistant materials for membrane separations’ has been published in Chemosphere (Volume 271, May 2021, 129425). Abstract Solute purification, solvent recovery, solvent separation in organic solvents are more and more widely used in the chemical industries, pharmaceuticals and food processing. Fast and efficient separations can be realized using membrane separation […]

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Warden’s high surface area filter success

With a spherical design and surface area of 310 m²/m³, Biomarble has the highest surface area of the three spherical designs in the Warden Biomedia filter range. Warden Biomedias SAF300N5 modular treatment plant was selected. When a water and wastewater specialist was commissioned to design and build a wastewater treatment plant for a project at […]

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Application of membrane separation processes in phosphorus recovery

Science of the Total Environment. The review article ‘Application of membrane separation processes in phosphorus recovery: A review’ has been published in the journal Science of The Total Environment (Volume 767, 1 May 2021, 144346). Abstract The depletion of phosphorus resources and the excess discharge of phosphorus into waste streams are contrasting problems. The key to solving both […]

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Evaluation of membranes for microplastic removal

The research article ‘Evaluation of membranes performance for microplastic removal in a simple and low-cost filtration system’ has been published in the journal Case Studies in Chemical and Environmental Engineering. Abstract The ubiquitous presence of microplastics (MPs) in the environment has become a major challenge in recent years. One of the main concerns is the eco-toxicological […]

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Eaton takes the strain under high pressure

The Kraftwerke Oberhasli AG power plant (KWO) can generate energy on demand at any time using water dammed in the Grimselsee, 1909 m above sea level. (Image: Shutterstock) The Eaton Model 2596 automatic self-cleaning strainer is designed for continuous, uninterrupted removal of entrained solids from liquids in pipeline systems. Eaton Model 2596 automatic self-cleaning strainer […]

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Interaction of water droplets with soluble filter cakes

Separation and Purification Technology The research article ‘Interaction of water droplets with soluble filter cakes in gas cleaning applications’ has been published in the journal Separation and Purification Technology. Abstract In surface filtration processes, particles are collected on the upstream face side of the filter and form a filter cake. In commonly studied processes for the […]

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Nitrate, arsenic and fluoride removal from brackish groundwater

Water Research The research article ‘Nitrate, arsenic and fluoride removal by electrodialysis from brackish groundwater’ has been published in the journal Water Research. Abstract Nitrate, arsenic and fluoride are some of the most hazardous elements contaminating groundwater resources. In this work, the impact of operative (flowrate, electric potential) and water quality (salinity, contaminant feed concentration, pH) […]

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Great Barrier Reef gets data upgrade

CRC collaborated with James Cook University in Queensland and other partners to commission a ­network of environmental sensors in Saltwater Creek to obtain real-time water quality and flow data. The world’s largest coral reef system, the Great Barrier Reef, supports many species but is at risk from pollution and climate change. Coastal communities are exploring […]

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Harnessing the power of nature

A top view of one of the BiomPod aerobic tanks showing the aquatic plants used including papyrus. (Image: Mrüna) One of the sites where Mrünas technology is used, in the Bekaa Valley in Lebanon, where UNICEF run an informal settlement for forcibly displaced people. (Image: Mrüna) Mrünas IoT enabled app-based secure asset management system. (Image: […]

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Submerged nanofiltration for direct drinking water treatment

Chemosphere The research article ‘Submerged nanofiltration without pre-treatment for direct advanced drinking water treatment’ has been published in the journal Chemosphere. Abstract Membrane fouling is a major challenge toward achieving direct nanofiltration (NF) treatment of surface water. This study aimed to evaluate the potential of the novel submerged flat-sheet NF membrane module to achieve low fouling […]

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Understanding the feedstock with Valin

Industrial compressed air filters. (Image: AdobeStock) An automatic treatment and filtration of drinking water system. (Image: AdobeStock) The only way to achieve a specified purity levels is to select and install proper filtration, with the job intended and the task fully understood. Norman Hall, Filtration Business Unit Manager for Valin Corporation, suggests a correct approach. […]

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Seawater desalination technology in China

Desalination The research article ‘Seawater desalination technology and engineering in China: A review’ has been published in Elsevier journal Desalination (Volume 498, 15 January 2021, 114728). Abstract Insufficient clean freshwater has exacerbated water scarcity in China, especially in southern coastal regions where the economy is active and highly populated. Seawater is an important supplement of water source in […]

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Biological activated carbon filters for micropollutant removal

The research article ‘Implications of biological activated carbon filters for micropollutant removal in wastewater treatment’ has been published in the journal Water Research. Abstract Granulated Activated Carbon (GAC) filtration is a common process for advanced wastewater treatment. In such filters, the removal of organic substances results from adsorptive as well as biological processes. This work investigated the […]

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