Displaying items by tag: Membranehttp://www.sixsigma-tools.comSat, 28 May 2016 19:05:42 +0200Joomla! - Open Source Content Managementde-deBetter membranes for cleaner waterhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1534-better-membranes-for-cleaner-waterhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1534-better-membranes-for-cleaner-waterBetter membranes for cleaner water

Better membranes for cleaner water

ID: F1601-10

A brand new project developed revolutionary membranes. They featured greatly increased surface area and longer working life. In addition, the membrane price per membrane area had been considerably reduced. A nano-filtration coating enables surface water to be filtered straight and used as ingesting water using the help of a low-volume, low-energy filtration process. Moreover, the ceramic material is resistant to fouling, ensuing in lower operating expenses and less time lost for membrane cleansing. The membrane is strong sufficient to help back flushing during cleansing and sterilisation with chemicals or hot vapor. Lower maintenance requirements will end up in less cleansing chemical compounds being needed and therefore disposed of. The membrane can additionally run at low stress thanks to its large permeability and low fouling propensity, thereby saving energy and reducing procedure costs. The method can be used to provide emergency water supply and neighborhood water therapy, as well as for large-scale production of ingesting water through the filtration of surface water. The membrane can additionally be utilized for treating wastewater from specific procedures characterised by high conditions, extreme PH values, aggressive chemicals and/or extreme fouling behaviour.

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  • Membrane
  • Clean
  • Water
  • Surface
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    grond@numberland.de (Administrator)Get in ContactSat, 16 Jan 2016 21:00:03 +0100
    Nano materials for water purificationhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1526-nano-materials-for-water-purificationhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1526-nano-materials-for-water-purificationNano materials for water purification

    Nano materials for water purification

    ID: F1601-02

    Water scarcity is one of the main challenges of the twenty-first century. Novel low-cost, bio-based filtration and purification membranes promise increased access to clean water for all. Water use has been growing at two times the price of the populace during the last century. Every 12 months, competition for water resources for ingesting, washing, and sustaining farming and life intensifies. A new project is developing nanomaterials-based water purification membranes for decentralised commercial and domestic water therapy to help relieve the issue. Scientists are designing, developing and testing membrane-based prototypes based on nanocellulose and/or nanochitin, polysaccharides discovered in plants and the exoskeletons of crustaceans. The primary focus is on the removal of toxic chemical compounds such as heavy metal ions, pesticides and fertilisers from contaminated industrial water making use of membranes and membrane modules. The membranes will be evaluated for their suitability for disposal by composting and its effect on environment, at end-of-life. These bio-based functional membranes therefore offer an extremely energy-efficient, cheap, biodegradable, non-toxic and green substrate for water therapy. Using existing industrial processes, the team was able to quickly up-scale manufacturing of nanoparticles (cellulose and chitin nanocrystals and cellulose nanofibres) isolated from bioresources. Nanocellulose and nanochitin have demonstrated satisfactory adsorption of hefty metal ions from water for efficient water purification. Researchers prepared 100 % bio-based membranes from cellulose nanocrystals, cellulose nanofibres and chitin nanocrystals in indigenous type as well as from surface-modified cellulose nanocrystals. Various changes were tested to improve filtration, mechanical properties and adsorption efficiency. The project will assist to recover heavy metals while ensuring high-efficiency decentralised water cleansing, high adsorption prices and high adsorption selectivity. It will additionally feature reuseable antifouling or low fouling areas. The treatment of water toxins will have long-term benefits for individual health and quality of life. This work will lead to brand new products based on green nanotechnology in the form of nanomembranes, filters and adsorbents for water purification that will be much more efficient, cost effective and environment friendly than currently available items. They will offer sustainable solutions for water recycling and elimination, and the recovery of hefty steel ions, fertilisers, medications and pesticides from industrial effluents. The ensuing enhancement in the quality of surface and groundwater, at first in Europe and then at the worldwide level, will have a far-reaching effect on the environment.

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    • Nano
    • Material
    • Water
    • Purification
    • Filtration
    • Membrane
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      grond@numberland.de (Administrator)Get in ContactSat, 16 Jan 2016 20:59:08 +0100
      Better membranes for fuel cellshttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1514-better-membranes-for-fuel-cellshttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1514-better-membranes-for-fuel-cellsBetter membranes for fuel cells

      Better membranes for fuel cells

      ID: F1510-10

      A gas cellular can produce electrical energy through a chemical reaction between a gas and oxygen. Those that use a proton-conducting polymer membrane as the electrolyte are known as proton exchange membrane (PEM) gas cells. These are semipermeable membranes generally made from ionomers and created to carry out protons while being impermeable to gases. Nevertheless, until now, PEM fuel cells have actually unsuccessful mostly because of mechanical failure of the membrane. To increase their durability and life time, a new project had been founded. One of the absolute most common and commercially available PEM materials is the fluoropolymer perfluorosulfonic acid (PFSA). The project made great strides in obtaining low equivalent-weight (EW) PFSA ionomers with improved mechanical properties contrasted to the state of the art. Benchmark ionomers may have been hitherto the best materials in the lab. Nevertheless, the task proved that they were not the best in terms of durability when membrane layer electrode assemblies (MEAs) were assessed after 100 hours of continuous procedure. To this end, experts utilized reduced EW ionomers in their bid to prepare membranes with robust mechanical properties. Their approaches relied on the usage of chemical, thermal, and processing and filler reinforcement techniques. In particular, the focus had been on checking out ionic cross-links during emulsion polymerisation and membrane layer casting. This approach leads to non-linear ionomer molecules with large molecular weight that overcome problems linked with membrane layer dimensional changes – i.e. swelling. Researchers also used electrospinning to produce organic and inorganic fibres for mechanically reinforcing the low EW standard ionomers. Through nanofibre reinforcement, scientists reported significant improvement of mechanical properties of the last membranes and greater durability, with conductivity being greater contrasted to the benchmark membrane. Another technique to mechanically strengthen the standard ionomers had been through ionic cross-linking based on nanoparticles. A number of membranes had been prepared utilizing nanoparticle fillers of different hydrophobicity. With in situ tests designed to accelerate mechanical degradation, the stabilised MEAs demonstrated improved durability, with less than 3 % voltage loss after 2 000 hours of operation.

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      • Energy
      • Source
      • Fuel
      • Cell
      • Membrane
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        grond@numberland.de (Administrator)Get in ContactTue, 27 Oct 2015 21:11:56 +0100
        Execute chemical processes more eco-friendlyhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1513-execute-chemical-processes-more-eco-friendlyhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1513-execute-chemical-processes-more-eco-friendlyExecute chemical processes more eco-friendly

        Execute chemical processes more eco-friendly

        ID: F1510-09

        Experts have developed unique nano-structured catalysts and selective membrane materials for catalytic membrane reactors (CMRs) of great importance to the power sector. They promise enhanced overall performance and sustainability at a lower price. CMRs combine membrane-based separation and a catalytic chemical reaction in one single device. More than 80 % of reactions in the chemical industry exploit catalysts to boost production price and yield. Process intensification allowing significantly less power usage and waste for more cost-effective and sustainable technologies could have tremendous impact on industry. A new project features selected four chemical processes particularly important in the power sector related to the production of pure hydrogen, liquid hydrocarbons and ethylene. The procedures are autothermal reforming (ATR), Fischer-Tropsch synthesis (FTS), the water-gas shift (WGS) reaction and oxidative coupling of methane (OCM). In the at the same time the team features in its hands enhanced and more cost-effective catalysts and membranes for all four procedures. Those for the lab-scale studies have been delivered to lovers currently and the materials for the pilot-scale reactors have been selected. The final catalysts for each of the pilot-scale CMRs all demonstrate superior task, selectivity and stability compared to the current state of the art. Lab-scale CMRs for all four processes have been constructed and are in different phases of screening and demonstration. In specific, the FTS and WGS reactors have actually been shown and the oxygen membranes of the ATR and OCM reactors are currently being optimised. Pilot prototypes have been designed for all but the FTS CMR (see figure on module of WGS pilot). Design of the membranes, catalysts and CMRs was supported throughout the development process by modelling and simulation. Completion of the task will be accompanied by life-cycle and environmental analyses, the initial results of which have actually currently been obtained. The staff wants to guarantee safety against explosion. A risk assessment features been finished and safety recommendations proposed. Lastly, the staff features developed the framework for an upcoming socioeconomic analysis.

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        • Chemical
        • Process
        • Catalyst
        • Nano
        • Membrane
        • Material
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          grond@numberland.de (Administrator)Get in ContactTue, 27 Oct 2015 22:11:51 +0100
          Better membranes for drinking waterhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1498-better-membranes-for-drinking-waterhttp://www.sixsigma-tools.com/index.php/get-in-contact/item/1498-better-membranes-for-drinking-waterBetter membranes for drinking water

          Better membranes for drinking water

          ID: F1509-04

          Clean, usable water is at threat from the increasing incidence of hazardous substances in water supplies, threatening general public wellness and the environment. Novel nano-structured membranes are therefore being created by EU-funded scientists to combat the bioaccumulation of heavy metals, the emergence of multi-drug resistant organisms and metal-related diseases. Chronic exposure to hefty metals and drugs from the mining, pharmaceutical and wellness treatment sectors can be toxic to living cells and induce disease processes. A new generation of low-fouling, nano-structured filtration membranes using smart materials may be just around the part. Experts working are developing technology to boost the percentage of potable water in developing and industrialised nations. The three-layer hybrid membrane will have an anti-fouling pre-filter made of polymeric nanofibres, a smart cleaning system employing piezoelectric crystals and a highly selective, nano-structured ceramic membrane. Together, these enhancements will enable the treatment of heavy metals, data recovery of valuable metals and catalytic degradation of toxic compounds. This should find application in the mining industry and pharmaceutical sector as well as in hospitals and geriatric treatment services. One benefit of the idea is that each component may be considered as a separate device. They can be effortlessly combined to supply tailor-made solutions for the certain needs demanded by different water remediation processes. The production procedure for the new filters will be scaled up to industrial level for treating in situ effluents. The advantages of the nanomaterial-based membranes will be carried with respect to water filtration efficiency and economic and environmental impacts. The project will offer a toolbox for fabricating prototype multifunctional membranes for industrial wastewater therapy; it'll concentrate on three industrial programs. These range from the treatment of heavy metals from acid mine drainage water and valuable metals from the chemical and mining industry. They will additionally be used in the catalytic degradation of toxic drugs and metabolites from the pharmaceutical sector and hospitals and nursing houses.

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          • Water
          • Cleaning
          • Membrane
          • Drinking
          • Environment
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            grond@numberland.de (Administrator)Get in ContactMon, 28 Sep 2015 09:32:52 +0200