anthracite activated Articles

  • 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

  • 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 ...


    By IWA Publishing

  • A large‐scale field trial of thin‐layer capping of PCDD/F‐contaminated sediments: Sediment‐to‐water fluxes up to five years post‐amendment

    The longer‐term effect (3‐5 y) of thin‐layer capping on in situ sediment‐to‐surface water fluxes was monitored in a large‐scale field experiment in the polychlorinated dibenzodioxin and dibenzofuran (PCDD/F) contaminated Grenlandfjords, Norway (four trial plots of 10,000 to 40,000 m2 at 30 to 100 m water depth). Active caps (designed thickness 2.5 cm) were established in two fjords, consisting ...


    By John Wiley & Sons, Ltd.

  • Engineered biofiltration for ultrafiltration fouling mitigation and disinfection by-product precursor control

    A pilot-scale study was conducted to evaluate the impact of several biofiltration enhancement strategies in terms of organic removal to reduce disinfection by-product (DBP) formation potential and mitigate ultrafiltration (UF) fouling. Strategies included nutrient addition (nitrogen and phosphorus) to optimize metabolic degradation of organics, use of hydrogen peroxide (H2O2, peroxide) ...


    By IWA Publishing

  • Biofiltration optimization: phosphorus supplementation effects on disinfection byproduct formation potential

    This study investigates the effects of phosphorus supplementation on the formation potential of total trihalomethanes (TTHMfp) and five species of haloacetic acids (HAA5fp) during exposure to clearwell disinfection contact times. In addition, the study investigates the effects of phosphorus supplementation on the dissolved oxygen, organic carbon and nitrogen removal along with biofilm ...


    By IWA Publishing

  • Water reuse for the bottled water industry

    ABSTRACTThe bottled water industry uses a machine specifically designed for the washing of its containers (19-L capacity) and generates 6-L wastewater/container. This effluent can be used for watering of green areas and car washing. The objectives of the present work were to characterize the effluent and to propose a specific treatment to enable reuse of the effluent from the container washing ...


    By IWA Publishing

  • Case study - Fluidized bed material mitigates acidic mine drainage

    Since 1992, Headwaters Resources has used fluidized bed combustion products from the AES Thames Cogeneration Facility in Connecticut to improve the pH of groundwater at an active surface coal mine in Pennsylvania, and for ground contour restoration. The Thames Cogeneration Facility is a large fluidized bed coal combustion power facility in Uncasville, Connecticut. The facility produces 132,000 ...


    By Headwaters Resources, Inc.

  • Industrial Media Filtration Systems, Philippines

    INTRODUCTION In July 2013, Pure Aqua successfully manufactured industrial media filtration systems to a major company in Philippines to remove particulates, chlorine, organics, and odor from well water. The industrial media filtration systems were selected from our MF-1000 Series with 48" and 42" diameter ...


    By Pure Aqua, Inc.

  • 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 ...


    By H2O Innovation

  • 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 ...


    By Clean Water Technology, Inc.

  • Using Nanofiltration in Beverage Production

    The following article is based on a paper presented in August, 1990 at the 21st Annual Meeting of the Fine Particle Society in San Diego. Soft drink manufacturers, not to mention manufacturers of other beverage products, have always had a keen interest in the water that goes into their products. After all, it is the water that typically makes up 80%-90% of the product. In the past the water has ...

  • Water Reuse Terminology

    All water on Earth is used and reused, over and over, in an elegant water cycle. Water reuse occurs in various ways on a daily basis. It happens when a community’s treated wastewater is discharged into rivers or other water bodies. If you live in a community downstream of another, chances are you are reusing water from an upstream town. Scientifically proven advances in water technology ...


    By WateReuse

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

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