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Novel membrane processes for water treatment : From wastewater treatment to desalination and stormwater harvesting
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This presentation described three membrane-based water treatment concepts advancing from laboratory to pilot scale: stormwater harvesting using ceramic micro/ultrafiltration, direct membrane filtration for wastewater treatment, and a hybrid forward osmosis/membrane distillation/nanofiltration system for seawater desalination. The stormwater harvesting system in Malmö now treats 1,300 liters daily reducing drinking water use by 40%, while all three approaches demonstrated effective removal of micropollutants and microplastics.
Global water scarcity requires innovative treatment solutions. This presentation explores three membrane-based concepts advancing from idea to pilot scale: stormwater harvesting with micro-/ultrafiltration (MF/UF), direct membrane filtration (DMF) for wastewater treatment, and a hybrid forward osmosis (FO), membrane distillation (MD), and nanofiltration (NF) system for seawater desalination.The EU-Horizon 2020 project REWAISE aims to reduce drinking water consumption by 30%, focusing on non-potable applications such as toilet flushing and laundry. In Lund, Sweden, initial trials with submerged ceramic membranes (0.2 µm, 400 kDa MWCO) effectively removed micropollutants and microplastics from stormwater. A full-scale installation at Röda Oasen in Malmö now treats 1,300 liters daily, reducing drinking water use by 40%. Additionally, a new stormwater harvesting pilot at Lund University’s Division of Chemical Engineering tests hydrostatically driven filtration.DMF integrates coagulation, flocculation, and microsieving with microfiltration to enhance carbon rejection and biogas production. Pilot tests in Lund used 0.2 µm PVDF membranes, leading to a full-scale installation in Fredrikstad, Norway, treating over 90 m³/day. The process achieves high COD, SS, and phosphorus removal, offering a potential energy-positive alternative to conventional treatment.The EU-Horizon 2020 DESOLINATION project integrates concentrated solar power (CSP) with membrane desalination. Using a thermo-responsive polymer as an FO draw solution, coupled with nanofiltration, membrane distillation, and a coalescer, the system optimizes energy efficiency. Initial trials at Lund University will inform a large-scale pilot at King Saud University in Riyadh.These initiatives demonstrate the potential of membrane technology to address water scarcity by advancing from pilot studies to full-scale implementation, paving the way for more sustainable and efficient water management solutions.
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New pilot scale concepts for water treatment with membrane technology
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Researchers developed three pilot-scale water treatment concepts based on membrane technology: microfiltration/ultrafiltration for stormwater collection and purification, direct membrane filtration for wastewater treatment, and a combined forward osmosis, membrane distillation, and nanofiltration system for advanced water recovery. The pilot testing assessed the performance and practical feasibility of each approach for addressing global water scarcity.
New concepts for water treatment with membrane technology: From ideas to large pilot scale tests
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Researchers presented three novel water treatment concepts based on membrane technology — rainstorm water harvesting with micro-/ultrafiltration, direct membrane filtration for wastewater treatment, and an integrated forward osmosis concept — tracing their development from initial ideas through to large pilot-scale testing to address global water scarcity.
Stormwater harvesting with membrane technology: From an idea to apartment building installation
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This paper describes the development and installation of a membrane-based stormwater harvesting system in an apartment building in Sweden as part of the EU-Horizon 2020 REWAISE project, which aims to reduce drinking water consumption by 30%. The system was designed to produce potable-quality water from stormwater, with microplastic removal as one of the key treatment objectives.
Development in desalination and wastewater treatment: state of the art challenges, role of solar energy, and recommendations
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This review covers recent advances in seawater desalination and wastewater treatment technologies, examining how these traditionally separate processes may increasingly operate together for economic efficiency. Researchers found that solar energy integration offers promising potential for making water purification more sustainable. The study highlights both the progress made and the challenges remaining in ensuring access to clean water worldwide.
Nanotechnology in water purification: Innovations in filtration and desalination
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This review covers recent advances in nanotechnology-based water purification, including nanofiltration membranes, nano-adsorbents, and photocatalysts, which offer improved efficiency and sustainability over conventional water treatment methods. The work highlights the potential of nanomaterials to address global clean water challenges including microplastic removal.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.