heavy metal removal media Articles

  • Heavy metal removal - Case Study

    KDF 55 and 85 Provide Non-Chemical Water Treatment Media for Lead Removal and Other Heavy Metal Removal from Water In New Jersey's mercury contaminated groundwater - KDF media have been removing mercury to levels below the MCL since 1992. Redox media, non-chemical water treatment remove up to 98% of water-soluble cations (positively-charged ions) of lead, mercury, copper, nickel, chromium, and ...


    By KDF Fluid Treatment, Inc.

  • Enhancing the removal of arsenic, boron and heavy metals in subsurface flow constructed wetlands using different supporting media

    The presence of arsenic and heavy metals in drinking water sources poses a serious health risk due to chronic toxicological effects. Constructed wetlands have the potential to remove arsenic and heavy metals, but little is known about pollutant removal efficiency and reliability of wetlands for this task. This lab-scale study investigated the use of vertical subsurface flow constructed wetlands ...


    By IWA Publishing

  • Understanding the factors influencing the removal of heavy metals in urban stormwater runoff

    In this research, an infiltration trench equipped with an extensive pretreatment and filter bed consisting of woodchip, sand and gravel was utilized as a low impact development technique to manage stormwater runoff from a highly impervious road with particular emphasis on heavy metal removal. Findings revealed that the major factors influencing the removal of heavy metals were the ...


    By IWA Publishing

  • Treatment of heavy metals by iron oxide coated and natural gravel media in Sustainable urban Drainage Systems

    Sustainable urban Drainage Systems (SuDS) filter drains are simple, low-cost systems utilized as a first defence to treat road runoff by employing biogeochemical processes to reduce pollutants. However, the mechanisms involved in pollution attenuation are poorly understood. This work aims to develop a better understanding of these mechanisms to facilitate improved SuDS design. Since heavy metals ...


    By IWA Publishing

  • EPS production and bioremoval of heavy metals by mixed and pure bacterial cultures isolated from Ankara Stream

    This study is focused on isolation of Ni(II), Cu(II) and Cr(VI) resistant bacteria to assess their exopolysaccharide (EPS) production and related bioremoval capacities. Mixed cultures had higher heavy metal removal capacity in media with molasses (MAS) than the control cultures lacking this carbon (AS) containing 50 mg/l of heavy metal. The yields were 32%, 75.7%, and 51.1% in MAS, while the ...


    By IWA Publishing

  • Environmental remediation of heavy metal ions from aqueous solution through hydrogel adsorption: a critical review

    Heavy metal ions such as Cd2+, Pb2+, Cu2+, Mg2+, and Hg2+ from industrial waste water constitute a major cause of pollution for ground water sources. These ions are toxic to man and aquatic life as well, and should be removed from wastewater before disposal. Various treatment technologies have been reported to remediate the potential toxic elements from ...


    By IWA Publishing

  • Titanium Scrap Metal Processing

    Background A world-class processor of titanium scrap had a wash system whose cleaning solution was becoming contaminated with both free floating unemulsified tramp oil and emulsified water soluble oil that was being washed off of titanium turnings. As the level of oil contamination increased over time in the wash solution, cleaning effectiveness diminished. The processor uses a metric, ...

  • Scale removal - Case Study

    Water Cooling Towers Operate at Better Efficiency and Lower Maintenance Costs with KDF Water Filter Media "As Seen in Water Quality Products" At TowerKlean™ LLC... KDF Water Filter Media Help with Scale, Algae, Chlorine and Heavy Metal Removal from Water Scale... it's a vicious never-ending problem that can kill the overall efficiency of water-cooling systems or ...


    By KDF Fluid Treatment, Inc.

  • HS-200 Stands the test of heavy manufacturing

    A manufacturer of aircraft component generates a free and emulsified oily wastewater, which results from their machining, milling, cutting, and other operations. Presently, they are using skimmers and dissolved air flotation to remove oil from the water. To remove their heavy metals they follow up with flocculation, precipitation and clarification. Due to the rapidly ...


    By Hydrosil International

  • KDF 85 Process medium removes iron - Case Study

    KDF 85 Process Medium is an Effective Non-Chemical Water Treatment for Iron Removal and Other Heavy Metal Removal A Kalamazoo, Michigan producer of bottled drinking water uses KDF media as a non-chemical method of removing chlorine and sequestered iron from 7,500 gallons of municipal water daily, extending the operating life of downstream RO membranes by as much as 10 years. Redox media alloy ...


    By KDF Fluid Treatment, Inc.

  • Bulk reactive media utilized in sediment cap remedy for large-scale remediation project case study

    Project: West Branch Grand Calumet River Reach 1-2, Roxana Marsh Legacy Location: East Chicago. IN Products: Organoclay2 PM-199 Background: in 2011. clean up began on Reach 1 and Roxana Marsh in the West Branch of the Grand Calumet River. This project involved mechanical and hydraulic dredging and removal of 222,000 cubic ...


    By CETCO

  • Park City, Utah Arsenic removal from ground water

    Background Park City Utah Water, which serves a population of 6,500, has five water sources. Spiro Tunnel and Spiro Portal are two that were in need of Iron and Manganese removal as well as above limits for Arsenic. Filtronics was engaged by the engineering firm of Eckhoff, Watson and Preator (EWP), Salt Lake City, to perform pilot tests for the Park City Municipal Corporation. The ...


    By Filtronics, Incorporated

  • Small Area Paint Removal Possible Only With Wet Sandblaster Pressure Washers

    Paint removal has always been a difficult task for cleaning workers and requires the use of robust machines that can remove paint from both large and small areas. Pressure washers are the ideal machines that can handle tasks like small area paint removal efficiently. The exceptional versatility and power of regular pressure washers has always been appreciated by professional cleaning experts. ...


    By Daimer Industries Inc.

  • World’s largest compressible media filtration plant eliminates combined sewer overflows, with potential for dry-weather use

    The City of Springfield, Ohio, recently opened its 100 MGD enhanced high-rate treatment facility, designed to treat and disinfect combined high-volume stormwater and wastewater flows generated by wet-weather conditions. Utilizing EPA-documented Compressible Media Filtration technology – FlexFilter™ from WesTech – the system can also provide tertiary filtration and disinfection ...


    By WesTech Engineering, Inc.

  • San Joaquin Valley California - Arsenic removal from ground water

    Background The San Joaquin Valley of California is approximately 220 miles long and varies in width to a maximum distance of approximately 80 miles. The occurrence of groundwater over the entire extent of the valley is abundant. Recharge for the varied depths of aquifers is from precipitation in the form of rain and the snow pack from the western Sierra Nevada Mountain Range. High ...


    By Filtronics, Inc.

  • Biological reduction and removal of Cr(VI) with microbial consortia collected from local water treatment plant

    Application of microbes in water treatment is a well-established technique. A few microbes are tolerant to toxic heavy metals. Cr(VI) tolerant microbes have practical importance of detoxifying Cr(VI) to Cr(III). The water treatment plant situated at Indian Institute of Technology Guwahati (IITG), India, employs both physical and biological processes to treat domestic wastewater. The microbial ...


    By Inderscience Publishers

  • 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 ...


    By IWA Publishing

  • 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, ...


    By IWA Publishing

  • Biosorption of chromium(VI), nickel(II) and Remazol Blue by Rhodotorula muciloginosa biomass

    The passive removal of commonly used reactive dye and two heavy metals, from aqueous solutions by inexpensive biomaterial, yeast Rhodotorula muciloginosa biomass, termed biosorption, was studied with respect to pH, initial dye concentration and initial metal ion concentration. The biomass exhibited maximum dye and chromium(VI) uptake at pH 5 and pH 6 for nickel(II) in media containing 50 mg/L ...


    By IWA Publishing

  • Biosorption of cr (vi) by resting cells of aspergillus sp.

    Hexavalent chromium (Cr (VI)) is one of the major pollutants in the environment and is frequently present in wastewaters from industries such as dyes, electroplating, metal cleaning, leather industries, plating, photography, tanneries etc. The conventional treatment techniques used for removal of Cr (VI) ions from wastewaters are expensive and result in the production of harmful by-products and ...


    By University of Tehran

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