water purification polymer Articles

  • Progressive Purification

    MPP Systems is a business specialising in developing, marketing, manufacturing and servicing water purification systems based on Macro Porous Polymers (MPP). The Macro Porous Polymer Extraction (MPPE) system is a highly effective, fully automated, remote controlled and guaranteed technology for removing hydrocarbons from water by means of extraction in an MPP bed. ...

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

  • Electron beam-based functionalization of polymer membranes

    A new electron beam-based approach for the direct functionalization of polyethersulfone, polyvinylidene fluoride, polysulfone as well as polyacrylonitrile membranes in a one-step procedure is presented. Aqueous solutions of functional molecules were immobilized on the membrane surface by electron beam treatment. The resulting membranes show significantly increased flux and water wettability ...


    By IWA Publishing

  • Strategies of coagulant optimisation to improve the removal of turbidity and Ceratium hirundinella cells during conventional drinking water purification

    The dinoflagellate, Ceratium hirundinella (C. hirundinella) cells are known to cause many problems when source water due for purification contains relatively high concentrations. The objective of this study was to investigate strategies for the effective and simultaneous removal of turbidity and C. hirundinella cells using turbidity and total photosynthetic ...


    By IWA Publishing

  • Commercial Twin Alternating Water Softener, Nicaragua

    INTRODUCTION In July 2013, Pure Aqua designed and manufactured a commercial twin alternating water softener with 30” FRP tanks, 30” brine tank and Aquamatic valves for a major company in Nicaragua. Feed water to the softener was well water. Its purpose was to lower the hardness in the water to ...


    By Pure Aqua, Inc.

  • Preparation and surface modification of hollow fibre membranes for drinking water disinfection and water reclamation

    Polysulphone hollow fibres were spun according to phase inversion process under different conditions by extrusion of dimethylformamide solution of the polymer through double orifice spinneret using water or water-DMF mixture as gelation medium. The membrane surface was modified by in situ interfacial polymerisation of m-phenylenediamine with trimesoyl chloride. The nominal molecular weight ...


    By Inderscience Publishers

  • Application of Membrane Technology for the Recovery and Reuse of Water

    Abstract As water and sewer costs are expected to increase over the next decade, membrane technology will continue to be a viable and economical option in the recovery and reuse of water. This paper describes the mechanism of membrane effected separation (specifically reverse osmosis, ultrafiltration and microfiltration), membranes commercially available, membrane element configurations, and how ...


  • Crossflow Membrane Filtration High-Purity Water Systems

    INTRODUCTION As the electronics industry continues to provide us with such products as high resolution television, notebook size portable computers and cars with automatic navigation systems, it becomes necessary to produce semiconductors with finer device geometries to allow for efficient placement of more circuits per a given area. This requires increased control of a semiconductor's material ...

  • Development of polyethersulfone and polyacrylonitrile hollow fiber membranes for clarification of surface water and fungal enzyme broth

    Hollow fiber membranes are of great commercial interest with several applications at the forefront of research to carryout bioseparations, drinking water purification, wastewater treatment besides liquid phase separations and gaseous separations. An experimental study was carried out to synthesize hollow fiber membranes from polyethersulfone (PES) and polyacrylonitrile (PAN) polymers to ...


    By IWA Publishing

  • Don`t fall foul of biofilm through high TEP levels

    Biological fouling caused by the growth of biofilm on Reverse Osmosis (RO) and nanofiltration (NF) membranes can be amajor problem in desalination and water purification plants. Biofilm development lowers filtration efficiency and eventually the membranes must be replaced. Biofilm is usually made up of layers of assorted microbial populations, mostly bacteria,held together in a sticky matrix of ...

  • The effectiveness of humic acids coagulation with the use of cationic polyacrylamides

    The chemical coagulation process is a popular method for eliminating the precursors of disinfection by-products. This study presents the results of a laboratory experiment which investigates the use of cationic polyacrylamide copolymers (CPAMs) as primary coagulants in the purification of solutions containing humic acids (HA). A number of polymers with various molecular weight and charge density ...


    By IWA Publishing

  • The effectiveness of humic acid coagulation with the use of cationic polyacrylamides

    The chemical coagulation process is a popular method for eliminating the precursors of disinfection by-products. This study presents the results of a laboratory experiment which investigates the use of cationic polyacrylamide copolymers (CPAMs) as primary coagulants in the purification of solutions containing humic acids (HA). A number of polymers with various molecular weight and charge density ...


    By IWA Publishing

  • TEP and biofilm fouling on membranes

    Summary Biological fouling on membranes is a major problem in desalination and water purification plants. Oceanographers and limnologists have found that most marine and fresh waters are full of microscopic Transparent Exopolymer Particles, otherwise known as TEP. In this article, aquatic microbiologist Tom Berman and Filtration Specialist Marina Holenberg (Amiad Filtration Systems, Amiad, ...

  • Dewatering of Industrial Sludge - Case Study

    At Ten Cate Protect, town of Nijverdal, The Netherlands, 2006 During the wastewater treatment process at Ten Cate Protect large quantities of sewage sludge are liberated. A couple of days per week this sludge is transported in tanker trucks to a waste disposal plant. On June 14th 2005 a Geotube MDS unit was put in operation at Ten Cate Protect to separate and condense the sludge of the aerobic ...

  • Biomedical industry wastewater treatment

    The Client The Client is part of one of the most relevant Italian company developing and producing medical units for human blood treatment and purification at a European level. More in detail, units are particularly employed for kidney failure healing through dialysis. Since the beginning of its activity, the company played a key role for the development of the so-called CRRT ...

  • Revolutionary Filtration Put To The Test

    There are many cool aspects of my job, not the least of which is learning — and sometimes even breaking news — about the latest technologies in oil and gas. When I heard from Mike Dejak, executive VP of Eco-Tec, that the company's new technology could "revolutionize filtration" for the produced water market, I was anxious to learn more about it. However, I was also duty-bound to you, ...


    By Eco-Tec Inc.

  • Crossflow Membrane Filtration Applications in the Beverage Industry

    Abstract The use of crossflow membrane separation technology in the beverage industry has gone from a 'unique processing' approach to a standard unit process for many manufacturers. Applications such as replacement of troublesome diatomaceous earth (DE) filters for juice clarification have been highly successful. Employing reverse osmosis (RO) for apple juice concentration produces potential ...


  • Hielscher Ultrasonics: Dispersing Individual Single-Walled Carbon Nanotubes by Ultrasonication

    Hielscher Ultrasonics offers powerful ultrasonic devices for detangling, dispersing, and the deagglomeration of nano-sized particles, such as Carbon Nanotubes. ...

  • Why clean transformer oil?

    Related Website: http://www.oilrenew.com http://www.leizeyan.com http://www.zhongnengcq.cn ...


  • MPT CASE STUDY: International Petrochemical Manufacturer Outsources Key Resource Recovery Challenge

    The Opportunity PET (polyethylene terephthalate), one of the most commonly utilized resin products in the world, requires the chemical intermediate ...


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