anthracite filter Articles
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Anthracite filter media
Anthracite promotes higher service flow rates and longer filter runs with less head loss than single media filter beds. Backwash rates are reduced as well. Low uniformity coefficient anthracite filter media extends the life of your filter before the media must be changed out. Low uniformity coefficient anthracite typically produces consistent improvements in turbidity removal, due in part to ...
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Project - WTP in Ankara / Turkey
Successful conversion to EVERZIT® N Multilayer Filtration The Ivedik water treatment plant supplies the drinking water used by the City of Ankara. The plant now operates using over 4000 m³ of German-made EVERZIT® N anthracite filter media. In an upgrade project carried out in the years 2013/2014, the existing 56 sand filter units of the facility were converted to ...
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Effective production of rapid filters with polystyrene granules as a media filter
In conventional water treatment stations, the filter cleaning is performed with the use of filtered water. To save water and obtain higher production, the use of polystyrene (PS) beads has been proposed as a granular filter element because it is a granular element with a low specific mass. By being lightweight, this material requires a lower water velocity during backwash. The PS beads were ...
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Biofiltration as pre-treatment to water harvesting and recycling
This paper presents the results of the long term biofilter experiments conducted with raw stormwater collected from a canal at Carlton, in Sydney. Anthracite and granular activated carbon (GAC) were used as a single filter media in biofilter columns. Media heights of 75 and 40 cm were used. The filter columns were operated at filtration velocities of 0.12 and 0.25 m/h. The removal efficiency for ...
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Evaluation of Ceralite-A as an Alternative to Anthracite Filter Media - Case Study
Project Description The Golden Heart WTP located in Fairbanks Alaska is a lime softened, ground water treatment plant with five filter basins, with a combined surface area of 1495 ft2. Typical filter loading rates are in the 2.3 –to 3.1 gpm/ft2. The plant has 16” of 1.0 mm ES anthracite media over 8” of 0.55 mm ES sand which had reached the end of its service life. The ...
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Repair of Clay Tile Underdrain in Newport, RI
UNIFILT is capable of assisting treatment facilities in meeting the changing government and environmental requirements, relying on our continued technological design advancement of both our customized removal and installation equipment. UNIFILT’s unique and versatile maintenance menu offers on ever-broadening range of Filter Maintenance Services, resulting in expedient, cost-effective ...
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Rich microbial communities inhabit water treatment biofilters and are differentially affected by filter type and sampling depth
Factors affecting microbial diversity (richness) and community structure in biofilter columns were investigated. At a pilot filtration plant, granular activated carbon (GAC), anthracite and sand-based filters were used to treat stormwater from an urban catchment. After 12 weeks operation, sand media filters clogged (hydraulic conductivity declining by 90%) and all filters were destructively ...
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Prefiltration (SDI reduction) for Reverse Osmosis Boiler Makeup Water System - Case study
Background A major electrical utility in the Lake Charles Louisiana area required high quality water for boiler feed makeup water. A ground water pumping station provided 1,500-gpm water flow to a chemical treatment and solids clarification system. The decant water from the clarifier (SDI 6 to 8) collected in a lift tank where the water was pumped to two, parallel processing, carbon steel, ...
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Case Study: UV254 Organics Analyzer Helped Save 20-30% in Chemical Costs for Drinking Water Treatment
The Ridgway Water Treatment Plant (WTP) in Elk County Pennsylvania uses a Real Tech Real UV254 online analyzer to achieve a 20-30% savings in annual coagulant use in their conventional water treatment process. The dual-feel Real UV254 analyzer is used to continuously monitor raw and finished water dissolved organics via a single online analyzer. Beyond operational cost savings, the Real UV254 ...
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Dual-media filters, Fredrikstad waterworks, Norway
Fredrikstad Waterworks in southeastern Norway has an annual water production of 15 mill. cubic metres and supplies the municipalities Fredrikstad and Hvaler. During autumn 2003 they have renovated their dual-media filters. After around 8 years of operation, the volume of filter media in the existing sand/anthracite-filters was significantly reduced resulting in poor filtering effect. When ...
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Fouling of low-pressure membranes during drinking water treatment: effect of NOM components and biofiltration pretreatment
Fouling is a major challenge for low-pressure membrane drinking water treatment systems. Previous research has demonstrated that under the right conditions, biofiltration is an effective method to reduce fouling of low-pressure polymeric membranes. This study provides additional insight into the effect of biofiltration as a pretreatment for fouling reduction by using river water with different ...
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Hybrid filtration method for pre-treatment of stormwater
In this study the hybrid filtration process (combining fibre filter with deep bed dual media filtration) was investigated as pre-treatment to stormwater. This process was investigated in-terms of reduction in turbidity, dissolved organic carbon (DOC), colour, headloss development across the filters, suspended solids removal, organic matter removal, nutrients and heavy matter (such as iron, ...
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MBBR Helps Seafood manufacturer meet regulatory requirements
Abstract Seafood processor in Manta Ecuador has a high strength wastewater with TSS as high as 20,000 mg/l, FOG 700 mg/l, COD of 13,000 mg/l and BOD of 6,000 mg/l. Wastewater is discharged into Pacific Ocean across the street from the factory. Current treatment plant produces effluent with TSS of 150 mg/l, FOG of 80 mg/l, COD of 800 mg/l and BOD of 400 mg/l on average. New laws require that ...
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Filtration Performance and Particle Analysis, next-Sand vs. MultiMedia.- Case study
Test Conditions Water Source: Ground water pumped through a grit screen was collected in a 20,000 gallon storage tank. The water was pumped from the storage tank into a header pipe to supply two, parallel plumbed FRP filter vessels. Equipment Description. Multimedia System. 48” dia. FRP tank. 36” bed depth comprised of #16 Garnet, #50 Garnet, 20x40 mesh sand and anthracite. ...
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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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Case study - Filtralite Fredrikstad
When renovating the filters the waterworks was interested in testing alternative filter media and replaced the anthracite layer in one of the filters with Filtralite® media for evaluation. Filtralite® is a filter media made of expanded clay and delivered by Saint-Gobain (Weber). In March 2002 Filtralite® media was installed on top of the existing sand in one out of totally 8 filters. ...
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Dependable Pretreatment for UF Membrane Water Treatment System
Lake Forest is a small upper class community along the west shore of Lake Michigan about 35 miles north of downtown Chicago, IL. In 1890 a group of residents started the Lake Forest Water Company on the present site to provide water for the residents of the community. Prior to the spring of 2004, the Lake Forest Water Plant provided traditional water treatment. Coagulating chemicals were added to ...
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Victor Project – De Beers Canada, Ontario case study
In early 2006 De Beers Canada began the construction of its first Ontario diamond mine, in the James Bay Lowlands. To provide drinking water for this mining camp and its daily workforce of nearly 1,000 , the engineering- consulting firm AMEC recommended that De Beers Canada call on the expertise of H2O Innovation. H2O presented a solution that matched its client's very special needs and ...
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What is Zeolite Water Treatment Media?
How is zeolite water treatment media used in water & wastewater treatment? Technology is constantly evolving and changing to meet the needs of humanity, and one of those needs is for clean water. The water treatment industry is always researching, testing, and developing new and improved ways in which to treat wastewater and drinking water in ways that are both efficient and environmentally ...
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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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