backwash water filter Articles
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Filter backwash water treatment options
Filtration acts as the final step in the removal of suspended matter and protozoa. The accumulated residue is removed during the backwash process and any subsequent recycling of filter backwash water could potentially re-introduce these contaminants into the main treatment process. By separating the filter backwash water from the main treatment process, factors that could interfere with the ...
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Cause of rapid monochloramine decay observed in treated water
Rapid monochloramine decay has been observed in the product water of three River Murray water treatment plants (WTPs). Previous investigations identified that rapid monochloramine decay was microbiological in nature and observed in samples taken after media filtration but was absent in filtered water samples from a fourth WTP of similar design. The filters at the WTP not exhibiting rapid ...
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Ceramic membranes for water treatment
Ceramic membranes, different in pore size and membrane material, were applied to remove particulate and dissolved matter from different spent filter backwash water types as well as from dam water. The study was conducted in pilot scale under conditions typical for waterworks at a dam water treatment plant. A comparison of different ceramic membranes implied that total membrane resistance was more ...
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Does the recycling of waste streams from drinking water treatment plants worsen the quality of finished water? A case assessment in China
The overall purpose was to assess the feasibilities of recycling filter backwash water (FBWW) and combined filter backwash water (CFBWW) in a drinking water treatment plant in south China. The variations of regular water-quality indexes, metal indexes (Al, Mn and Cd), polyacrylamide and disinfection by-product indexes (trihalomethanes and their formation potentials) along with the treatment ...
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Identification of the bacterial population in manganese removal filters
The aim of this study was to identify bacteria present in ripened manganese removal filters for drinking water production. The bacterial population was identified with ‘next generation’ DNA sequencing, and specific bacteria were quantified with quantitative polymerase chain reaction (qPCR) and characterized by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry ...
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Recycling of spent filter backwash water using coagulation-assisted membrane filtration: effects of submicrometre particles on membrane flux
Membrane separation technology has been widely used for recycling of spent filter backwash water (SFBW) in water treatment plant. Membrane filtration performance is subject to characteristics of the particles in the SFBW. A bench-scale microfiltration (MF) coupled with pre-coagulation was set up to evaluate the recovery efficiency of SFBW. Effect of particle size distribution and zeta potential ...
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Kinetico Incorporated fact sheet
PROFILE Kinetico is one of the world’s leading manufacturers of water treatment products with specialized products serving residential, commercial, industrial and municipal markets. RESIDENTIAL/COMMERCIAL PRODUCTS Water conditioners Water softeners Drinking water systems (reverse osmosis) Carbon filters Waterplants (combined conditioner/drinking water system) Backwashing filters ...
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Recycle of waste backwash water in ultrafiltration drinking water treatment processes
In drinking water treatment, ultrafiltration (UF) membrane systems are generally operated at 90 to 95% recovery with production losses resulting from waste residual streams such as backwash water and clean-in-place (CIP) liquid residuals. In drought-prone regions, it may be desirable to apply alternative UF plant design configurations to increase recovery rates and minimize water loss. This ...
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Methods for Treating Waste Water of Livestock and Fowl Cultivation
Multi-media filter is a process of using one or several filter media to pass water with higher turbidity through a certain thickness of granular or non-granular material under a certain pressure, thereby effectively removing suspended impurities and clarifying the water. Commonly used Filter materials include quartz sand, anthracite, manganese sand, etc., which are mainly used for water treatment ...
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Evaluation of an emerging water treatment technology: ceramic membranes
Historically, low-pressure membranes (microfiltration (MF) and ultrafiltration (UF)) used in potable water treatment are made of polymers (polysulfone (PS), polypropylene (PP), polyethersulfone (PES), polyvinylidene fluoride (PVDF) etc). Recently, membranes made of ceramic materials (aluminium oxide) have been developed by MetaWater (Japan), Kubota (Japan) and others and is being marketed in the ...
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Choosing a Centrifuge Over a Belt Press: Considerations
In many industries belt presses are the “safe bet”. Because the technology is older, it’s more likely that operators have experience with it. The start-up costs can seem quite reasonable. And the open design makes the filtration process seem extremely straightforward. In essence, it’s no different from a coffee filter. And, like a coffee filter, it’s a good ...
By Trucent
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WaReg protects homes from flooding in Sweden - Case Study
Location: Backaryd, Sweden Customer: Backaryds Vattenverk Problem: Backaryd Water Treatment plant backwash their filters regularly. During this process water is released into the town sewer network at a rate of 16 l/s. The towns sewer network is dimensioned to cope with 5 l/s so when it receives 16 l/s it becomes problematic for downstream residents. When the backwashing occurs, homes in the ...
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City expands water treatment facilities to meet growth
The City of Coon Rapids, Minnesota recently completed the expansion and upgrade of its East and West Water Treatment facilities. Production at the plants was increased by 66% at the East Plant and 40% at the West Plant to bring the total design capacity to 22.3 million gallons per day. New filters, additional backwash water reclaim capacity, chemical feed systems, and new control systems for ...
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Power plant converts gray water into boiler feedwater using hero technology
The Facility The Bajio Power Project is a 600 MW combined cycle project owned by the Energía Azteca, a Mexican project company jointly owned by InterGen and American Electric Power. The build, own and operate facility is in commercial operation near the municipality of San Luis de la Paz in the state of Guanajuato, approximately 160 miles from Mexico City. In 1999, Energía Azteca ...
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Beverage Manufacturer to Cut Disposal Cost
THE PROBLEM A Pennsylvania general contractor with much experience within the beverage industry, saw that water utilization at a major food and beverage manufacturer’s facilities would benefit from an integrated approach to minimizing water consumption, while simultaneously optimizing boiler and cooling water treatment issues. By adopting such an approach, the contractor planned to offer their ...
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City utilizes leading edge controls for water filtration operation case studies
Background “Where the Prairie Meets the Pines.” This is the city slogan for Fosston, Minnesota. It instantly conjures images of a tranquil, natural rolling landscape for this northwest Minnesota town of 1500 residents. Surrounded by farmland and with two wildlife refuges nearby, picturesque scenery abounds. It is here that computer and PLC technology have been optimized. This ...
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Benefits of Anthracite Carbon Media for Municipal Potable Water Treatment Applications?
Treating water to be of potable water quality requires fairly considerable treatment based on initial water quality. Many tend to jump straight to thinking about more technologically advanced treatments like reverse osmosis and the similar. Of course, there is a bit more involved in drinking water treatment for municipalities. However, anthracite carbon media has been used extensively in ...
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Solar-Powered Circulation Technology Clears Out Blue-Green Algae without the Costs and Hazards of Copper Sulfate
Untitled Document As the annual onslaught of blue-green algae (cyanobacteria) blooms continues to plague fresh water lakes and reservoirs, the use of copper sulfate to control the problem has become dubious. After 50 years of pouring innumerable tons of copper into lakes and reservoirs, the use of this algaecide has increased resistance and resulted in consequential ...
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