continuous backwash filter Articles

  • Innovative Multi-Media Filter – Continuous Backwash Filter

    The disadvantages of conventional MMF based pretreatment Conventional pretreatment is based on multimedia filters (MMF) implemented in large scale desalination plants. Although this filtration method is well proven and provides reliable filtration efficiency, it conceals an inherent drawback, the disadvantages of which relate mainly to the backwashing mechanism. The ...


    By IDE Technologies

  • Gravity self-backwashing filters

    The filtration of make-up and side-stream water in closed cooling circuits, operated through cooling towers, is a fundamental step to ensure safe and continuous operations in a power plant. Water - required in large amounts for this application - should not be wasted, and the potential damages deriving from a poor treatment must be avoided at all cost. BONO ARTES has developed a technical ...


    By Artes Ingegneria SpA

  • Pilot Testing of Upflow Continuous Backwash Filters for Tertiary Denitrification and Phosphorus Removal

    ABSATRACTPilot testing of upflow continuous backwash filter (UCB) for tertiary denitrification and phosphorus removal was conducted at the Hagerstown wastewater treatment plant. The pilot testing was conducted to determine denitrification performance capabilities of the upflow continuous backwash filters under cold weather operation and low effluent total nitrogen (TN) and total phosphorus ...

  • Superfund site - creosote removal

    Project Profile:US EPA Groundwater Remediation of Creosote Oil DATA: End User: US EPA, Army Corps of Engineers, Superfund site program Location: Bainbridge Island, WA Commissioned: Spring, 2005 Units: (1) FDB-7P Hydromation Deep Bed, Filter (HDBF) Flow Rate: 70 ...


    By Filtra Systems

  • The expanded Bed Biofilm reactor (EBBR) – an innovative Biofilm approach for tertiary nitrification

    ABSTRACT The expanded bed biofilm reactor (EBBR) was developed by Advanced Bioprocess Development Ltd. (ABD) to provide a compact tertiary nitrification process. In terms of performance, the EBBR can meet an NH3-N discharge of less than 1 mg/L at high volumetric loading rates (1.0 kg NH3-N/m3 expanded bed /day). This high rate results from a predominance of nitrifying bacteria immobilized as ...

  • 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.

  • Understanding Crossflow Filtration

    There's a lot of attention being given to water availability and purity, with good reason. Obtaining enough water is a struggle in some areas. In others, water is tainted with contaminants. It is therefore predictable that regulations and economics will force careful water treatment and stress water re-use. Fortunately, there are water treatment methods that can help you meet the water quality ...


  • Project profile - Foxxtown Apartments Sudlersville, Maryland arsenic, iron & manganese removal

    Background AdEdge Technologies Inc. (AdEdge) was selected in 2006 by McCrone Engineers and the awarded contractor, Maryland Construction to design, build, and install a full scale AD26GS+ arsenic, iron, and manganese treatment system for their customer Foxxtown Apartments in Sudlersville, Maryland to meet the new EPA arsenic standard. The treatment system was based on the design ...

  • 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 ...

  • Total Phosphorus Removal to Low Levels through Tertiary Reactive Filtration

     ABSTRACT A tertiary reactive filtration system has been developed by Blue Water Technologies, Inc. to removal total phosphorus and other constituents from wastewater. The reactive filtration system utilizes continuous backwash upflow filtration technology. The short-term and long-term fullscale testing completed by Blue Water Technologies, Inc. has yielded promising results for the ...

  • Filtronics offers the lowest lifecycle costs for its water filtration systems

    One of the biggest factors those seeking city water treatment or wastewater treatment systems must take into account is cost. Many manufacturers of water treatment systems make the cost of operating their ...


    By Filtronics, Inc.

  • Primary Drinking Water from Wastewater Effluent: Pilot Test Experience at the Miami Dade South District WWTP

    ABSTRACTThe Miami-Dade Water and Sewer Department (MDWASD) owns and operates the South District wastewater Treatment Plant in Goulds, Florida. This is a 225 mgd peak flowrate secondary oxygen activated sludge treatment facility that discharges effluent via deep injection wells. Based upon the detection of nitrogen species in the monitoring wells for the deep injection well system, MDWASD entered ...

  • Project profile - confidential client environmental remediation project Delray Beach, Florida

    Background Levine Fricke Engineers (LFE), an environmental firm under contract to Blackstone Consultants LLC (Blackstone), was responsible for specifying and selecting a cleanup remedy for a former contaminated nursery site located in Delray Beach, Florida. LFE and Blackstone performed site characterization and demonstrated that site groundwater contained very high arsenic concentrations. ...

  • Project profile - Lummi Island, Washington arsenic, iron, sulfide treatment system

    Background In mid 2004, AdEdge Technologies Inc. (AdEdge) was selected by Miller Water Association and Anvil Corporation to assist in the design of a fullscale arsenic treatment project for this small community. Arsenic levels are alarmingly high at 0.18 mg/l, 18 times higher than the new Federal standard of 0.010 mg/l. In addition to arsenic, many of the homeowners using the water ...

  • Talkeetna Water System, Alaska - Case Study

    In late 2009, VEI Consultants contacted AdEdge Water Technologies to design, implement and startup an arsenic, iron, and manganese treatment system for the Talkeetna Water System in Talkeetna, Alaska. The existing water supply consisted of a well rated for 250 gpm with an arsenic level of 20 parts per billion (ppb). Iron and manganese levels were 0.04 mg/L and 0.10 mg/L respectively. The water ...

  • 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

  • South West Water Exmouth case study

    It can be a tough job for the water treatment industry, faced with the needs to ensure the effectiveness of their treatment plants and processes whilst keeping operating costs within strict budgets. Finding a solution to these challenges means not only investing in the most appropriate technologies so that treatment works fulfil their obligations, but also evaluating ways of optimising ...


    By Partech (Electronics) Ltd.

  • Ion Exchange Systems.

    When properly applied, ion exchange for concentrated ion recovery is by far the best available technology. Where effluent streams can be filtered and ions requiring different regenerants can be segregated, ion exchange is usually the most cost effective and least capital intensive solution. We provide 4 levels of integration to cover most applications and capital budgets. The variations in the ...


  • Filtronics offers toilet to tap solutions for its clients nationwide

    Filtronics first opened its doors in 1974, and in the nearly for decades since it has been their mission to provide efficiency and economy in the water treatment systems they create. Surface water, ground water and  ...


    By Filtronics, Incorporated

  • World War II Memorial, DC - Case Study

    In 2003, AdEdge Water Technologies began working closely with EarthTech, the assigned engineering firm responsible for specifying and selecting the various water treatment systems serving the new National World War II Monument in Washington, DC. Stormwater and groundwater control and treatment are essential aspects of this project given the location of the site on the Mall adjacent to the ...

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