DRINKING WATER FILTRATION ARTICLES
Point-Of-Entry/Point-Of-Use Filtration Combination Earns LEED Design Credit The U.S. Green Building Council has issued a CIR (Credit Interpretations and Rulings) awarding an Innovation in Design credit under its LEED (Leadership in Energy and Environmental Design) program for a specific two-stage water filtration system to eliminate the need for bottled water in a 1,200-unit luxury apartment building.
As engineers come under increasing pressure to reduce maintenance and operating costs, inefficient combination double-pass reverse osmosis and electrodeionization (RO/EDI) water treatment systems have begun to lose popularity as a means of providing ultra-pure water. Integrated membrane systems (IMS), on the other hand, combine multiple membrane-based water treatment processes into a single system. In this case study, find out how a heat and power plant in Northeast China lowered capital costs and energy use by adopting an IMS to replace its conventional water treatment system.
There are a number of advanced water treatment tools available today that were not available 10 years ago, which broaden the approach to finding the most effective and least expensive treatment alternatives. Pilot testing of various technologies is the most beneficial method to determine the efficiency of treatments.
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ABOUT DRINKING WATER FILTRATION
Water treatment filtration involves the removal of suspended particles from water by passing the water through a filtration medium. As the water passes through the filter, floc, minerals, microorganisms and other impurities get stuck in the filter and are removed from the filtered water. Passage can be blocked by physical obstruction, biological action, adsorption, absorption or a combination of ways. Filtration is usually the final step in the solids removal process during water treatment which typically begins with coagulation and advances through flocculation and sedimentation.
Unfiltered or turbid water is difficult to disinfect because microorganisms growing on suspended particles are often harder to kill than when they are separated from the particles. Turbidity can also cause unwanted taste and odor issues in the potable water supply. Drinking water filtration is also used to remove microorganisms that are resistant to traditional methods of disinfection such as chlorination. By requiring a low turbidity in finished water, water treatment plants are ensuring that few or no microorganisms such as Giardia are present in finished drinking water.
There are three typical methods of clean water filtration used during the water treatment process. Conventional filtration follows coagulation, flocculation and sedimentation and precedes disinfection. Direct Filtration follows coagulation and flocculation when there is no sedimentation step. The final method called In-Line Filtration takes place without flocculation or sedimentation. A coagulant chemical is added to the water just before filtration and coagulation occurs in the filter.
There are many types of filter media being used in today’s water treatment industry.
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DRINKING WATER FILTRATION SUPPLIERS
Severn Trent Services
Severn Trent Services is a leading supplier of water and wastewater treatment solutions. We provide our clients with some of the industry’s brightest minds, advanced technologies, and quality products to provide you with truly efficient, cost-effective solutions to your water and wastewater challenges
Shelco Filters Shelco takes pride in providing a complete line of filters for a wide range of industrial applications including water and other in-plant liquids, gasses, foods, beverages, chemicals, petrochemicals, pharmaceuticals, cosmetics, photographic solutions, fuels, lubricants and plating solutions.
Ovivo brings together more than 200 years of collected experience, process expertise and proven technologies; but that doesn’t mean that we’re complacent. Over past centuries of growth, development and refinement we have been guided by the principle of delivering value to our clients. Our equipment and technologies already have a reputation for long-term durability and reliability, offering decades of use and leading to lasting relationships with key customers.
Liqui-Cel® Membrane Contactors are used for degassing liquids. They are most commonly used for O2 removal from water and CO2 removal from water, but they are also capable of controlling a variety of other dissolved gasses as well, such as Nitrogen.
WRT - Water Remediation Technology, LLC WRT provides effective processes for removing radium, uranium and other contaminants from water. Our complete package of services includes process equipment, proprietary treatment media, safe exchange of media, and proper handling and disposal of used media
QUA® headquartered in USA, is a developer and manufacturer of leading-edge advanced membrane products used in the water, wastewater, and water reuse markets. Sold exclusively through a global network of qualified OEM's, QUA's product offering includes their innovative Fractional Electrodeionization (FEDI®) stack, which has superior hardness tolerance compared to the other electro-deionization products on the market and their NSF Certified Q-SEP® Ultrafiltration (UF) membranes.
Amiad Water Systems Amiad Water Systems has more than 40 years experience as an industry-leading supplier of automatic self-cleaning filters, valves and accessories.
Filtronics, Inc. Filtronics has manufactured water and waste water treatment systems for industrial and municipal applications since 1974
Aqua-Aerobic Systems, Inc.
Since 1969, Aqua-Aerobic Systems, Inc. has been a leader in the design and manufacture of wastewater treatment equipment and systems for both municipal and industrial markets, worldwide.
AdEdge Water Technologies, LLC.
AdEdge Technologies, Inc specializes in the development and supply of innovative technologies, adsorbent-based products, and systems that remove contaminants from process or aqueous steams. We are an organization based on solid deliverable, scalable, scientifically proven technology and experience for the removal of arsenic and other contaminants from water
Siemens Industry, Inc. - Water Technologies
Siemens is the world leader in products, systems, and services for water and wastewater treatment for industrial, institutional, and municipal customers
Eco-Tec Inc. engineers, designs, manufacturers and distributes from Pickering, near Toronto, Canada. Customer service and technical support provide treatability studies, installation service, on-site supervision and operator training...
Veolia Water Solutions & Technologies
Veolia Water Solutions & Technologies offers comprehensive water and wastewater solutions for industrial and municipal customers. With unique technologies and process expertise, Veolia specializes in engineering, design, and project management, construction and execution.
Leopold -- A Xylem Brand
Leopold - A Xylem Brand has long been a worldwide leader a in the water and wastewater treatment industry supplying both filtration and clarification systems. Since its establishment in 1924, Leopold has pioneered and acquired a number of innovative technologies aimed at improving the quality of water while reducing costs.
Degremont Technologies is the Equipment Business Line Division of Degrémont, S.A., the international water treatment plant specialist, and a subsidiary of SUEZ ENVIRONNEMENT, a key player in the field of sustainable development.
Aquatech International Corporation Established in 1981, Aquatech International Corporation is a global leader in water purification technology for industrial and infrastructure markets with a focus on desalination, water reuse, and zero liquid discharge.