water purification Articles
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RO Membrane Technology
RO membrane technology is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water. In reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property, that is driven by chemical potential differences of the solvent, a thermodynamic parameter. The reverse osmosis membrane technology can ...
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What is Ion Exchange?
Although many water purification technologies are available, ion exchange is well-suited for highly selective removal of specific contaminants Ion exchange is a water treatment process commonly used for water softening or demineralization, but it also is used to remove other substances from the water in processes such as dealkalization, deionization, denitrification, and disinfection. With many ...
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gaiasafe filter products for drinking water purification - Case Study
Problem In some water works chlorination of drinking water is used to eliminate mikrobes. Chlorinated water may have disagreable taste and smell. Some water works use aluminium salts to clean the water. This leads to low concentrations of aluminium in drinking water. Today it is known that aluminium may be toxic to men. Old piping installations inside or outside private homes often where made of ...
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Ceramic Membrane Ultrafiltration Technology
Structure of Ceramic Ultrafiltration Membrane Ceramic Ultrafiltration Membrane has excellent chemical corrosion resistance. It is suitable for operation in 0-14 pH environment and oxidation resistance. It can be cleaned and regenerated with strong oxidants such as high NACIO content. The ceramic membrane is made of - A1O 2/ZrO2. The pore size of the membrane is less than 50 mm. The membrane tube ...
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History of Electrodeionization
Electrodeionization (EDI) history extends back to the mid-1970’s in the USA. Possibly back to Argonne National Labs in the 1950’s as a scientific novelty. However, the first working EDI modules were made by Harry O’Hare in 1977 and 1978, and were tested by the Southern Research Institute (SRI). The concept was “filled-cell ED”, an attempt to use the ED concept to ...
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Advances in Bromine Speciation by HPLC/ICP-MS
Bromine is a natural component found in waters, most commonly as the bromide ion, Br-. A common procedure for purifying drinking waters is treatment with ozone to kill bacteria. A byproduct of ozonolysis is the conversion of bromide to bromate (BrO3-), a known carcinogen. Therefore, a need exists to measure both bromide and bromate in drinking waters, as opposed to total bromine content. Our ...
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WWTP Industrial Coating Sector
The pre-treatment operations prior to coating are the core of the fi nishing process of metal and plastic products: The end quality of any type of coating can precisely depend on a proper pre-treatment. Two types of pre-treatment are carried out in the metal coating processes: Chemical and mechanical. For the second type, dry technologies are used, such as shot blasting, sand blasting and so on, ...
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How Does Electrodeionization Compare to Reverse Osmosis?
Reverse osmosis is a water treatment process that is still the principal method of removing impurities from water. But some applications such as pharmaceuticals require an even higher level of purity. In most situations, electrodeionization systems can provide higher ultrapure chemical free water production. Reverse osmosis (RO) and electrodeionization (EDI) are complimentary but distinctly ...
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What Makes EDI Ideal for Water Treatment?
Electrodeionization technology removes contaminants from water through deionization with continuous regeneration. It combines ion exchange and resin with electricity to subsequently remove impurities from your water. Some potential applications of EDI include any application where city drinking water is not pure enough. Some examples are in the food and beverage industry, microchip rinse water, ...
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How Can Using an Electrodeionization System Help You Save Money?
Electrodeionization (EDI) is an electrically driven water treatment machine that may be used in conjunction with (or in place of) your facility's existing water solution. Electrodeionization technology removes water impurities by combining electricity with ion exchange resin to deionize water, thus removing materials such as salts and other contaminants. Below are some reasons why you may ...
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Commercial RO Package, Jordan
INTRODUCTION In April 2013, Pure Aqua, Inc. designed and manufactured a commercial RO package to a major hotel in Jordan to remove, chlorine, TDS, and odor from well water. The package consisted of pre and post treatments including a multimedia filter and chemical dosing systems. The brackish reverse osmosis system was designed to produce 27,000 GPD at a feed water TDS of a maximum 3,000 ppm, ...
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KSB - H2O collaboration project: Reduce costs and improve quality of industrial wastewater treatment
A Clearcat evaporator at KSB in La Roche Chalais (France) for the treatment of industrial wastewater on site. The KSB factory at La Roche Chalais (24), a subsidiary of Germany's KSB AG, manufactures AMRI brand butterfly valves. These valves are used in the construction, industrial, water, and electric power generation sectors. The production of these valves generates two main liquid wastes: ...
By H2O GmbH
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Mechanism of Silica Removal in Electrodeionization (2006)
Mechanism of Silica Removal in Electrodeionization (3-Zone EDI Model) Keywords: Electrodeionization, EDl, CEDI, Water, Pure, Ultrapure, Silica, SiO2, Silicic acid, H4SiO4, Reactive; Non-reactive; Colloidal; Reverse Osmosis; lon-Exchange; Resin; Anion; Cation; Fouling; Rejection; Process design; Membrane; Zones; Electropure; SnowPure Abstract: Electrodeionization (EDI) is a continuous separation ...
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What Water Treatment Service is Right for Me?
Choosing the best industrial water solution for your plant can be a tough decision, as every solution has its benefits. Before you choose, you should know what each system does, how it works, and its potential benefits. Keep reading to learn more about electrodeionization systems and reverse osmosis water ...
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What Is Potable Water?
Of the more than 2 billion people who lack potable water at home, 263 million must travel 30 minutes per trip to collect it. With a global drinking water crisis on the horizon, technologies old and new make the most of existing water resources “Potable water” simply means water that is safe to drink, and it is becoming scarcer in the world. Increasing use is stressing freshwater ...
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Novel ion-exchange system softens produced water for steam generation
As California entered a period of severe drought in 2008, the challenges of using thermal methods to extract heavy oil became compounded by the difficulty of securing freshwater sources from which to generate the high-quality steam that these methods require. In an effort to manage the crisis, then-Gov. Arnold Schwarzenegger proclaimed a state of emergency and enacted widespread ...
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Degradation of Groundwater due to Fluoride Contamination in India
Introduction: India is the largest consumer of groundwater in the whole world. It uses around 230 cubic kilometers of groundwater per year, which is over a quarter of the global total. More than 60 percentage of groundwater in India is used for irrigation, whereas almost 85% of groundwater is used for drinking purposes. Even though groundwater is a renewable water resource, the world’s ...
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Softener Plant Supplier in Chennai, Chennai
Water is and will be the primal focus as the world evolves every day. We might be surrounded by large water masses, but those still need to be effectively utilized. Water, today is available in different formats or to be more modern, in different Avatars. The key question is how much can be made effective for human consumption. The resolution lies in treatment of water fit enough for consumption ...
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