effluent fine screening Articles

  • Fine screen retrofit cuts upgrade costs by US$1m

    Hawaii typically conjures up images of azure seas, swaying palms and pristine beaches. Behind the romance of this tropical paradise is a reality that faces most wastewater treatment professionals today – a rising population placingincreased demands on treatment facilities and tougher regulatory requirements.To preserve Hawaii’s natural beauty, keep up with growth and ensure regulatory compliance, ...


    By JWC Environmental

  • BCTMP Mill effluent treatment plant

    Location: Slave Lake, Alberta Owner: Slave Lake Pulp Corporation Description: A greenfield 130,000 ADMT BCTMP mill using Aspen as wood furnish. The high strength effluent, with a BOD5 strength of up to 6,000 mg/L (35 t/d) and flow of 6,300 m3/d, is treated by a five day extended aeration activated sludge process. This represented the first ...


    By NovaTec Consultants Inc.

  • Assessment of hormonal activities and genotoxicity of industrial effluents using in vitro bioassays combined with chemical analysis

    Wastewaters from various industries are a main source of the contaminants in aquatic environments. The authors evaluated the hormonal activities (estrogenic/anti‐estrogenic activities, androgenic/anti‐androgenic activities) and genotoxicity of various effluents from textile and dyeing plants, electronic and electroplate factories, pulp and paper mills, fine chemical factories, and municipal ...


    By John Wiley & Sons, Ltd.

  • Impact of fine mesh sieve primary treatment on nitrogen removal in moving bed biofilm reactors

    The purpose of this project was to investigate the effect of selective particle removal during primary treatment on nitrogen removal in moving bed biofilm reactors (MBBRs). Two small MBBR pilot plants were operated in parallel, where one train treated 2 mm screened municipal wastewater and the other train treated wastewater that had passed through a Salsnes Filter SF1000 rotating belt sieve ...


    By IWA Publishing

  • 2 Sisters Food Group - Case Study

    High chicken fat, causing screen pluggage, resulting in annual disposal cost of $45,000. Downstream processes could not operate efficiently due to high fat resulting in high surcharges, compliance issues as well as odor problems. FogbusterTM 1800, complete with solids removal augers, low shear pumps and fully automated control systems. Steam utilized due to the fast solidifying nature of the ...


    By FogBusters, Inc.

  • Cadbury Schweppes - Case Study

    The effluent now initially treated by the Forbuster system efficiently removes the solid debris before de-oiling the effluent. Wedge wire screen now works as designed to remove fine solids and carbon from the ovens. All downstream processes operating at peak efficiencies. Site is now compliant with the effluent standards required, odor was dispelled and sludge haulage costs significantly reduced. ...


    By FogBusters, Inc.

  • WWTP Yavne, Israel A Case Study

    Case Study: Municipal WWTPClient: Municipality of Yavne, IsraelStart Up: September 2005Capacity: 6,000 m3/d Overview An urgent improvement of the effluent quality of the old existing WWTP of Yavne was required by the Environmental Ministry of Israel. Requirement Effluent from the Yavne WWTP used to be discharged into a river ...

  • Case study: Municipal WWTP

    OverviewAn urgent improvement of the effluent quality of the old existing WWTP of Yavne was required by the Environmental Ministry of Israel. RequirementEffluent from the Yavne WWTP used to be discharged into a river which flows into the Mediterranean Sea. Years of inadequate treatment in two extensive ponds caused severe pollution. As a result, the Environmental ...

  • Case study: Large package sewage treatment plants with MBR technology in Africa

    In 2014 DEVISE ENGINEERING S.A. participated in an International Tender to Design and Build seven (7) advanced MBR Package Sewage Treatment Plants for “A.A.W.S.A” (Addis Ababa Water and Sewage Authority) and won the project over strong competition. The aim was to provide an efficient and cost effective solution for the treatment of sewage originating from the new decentralized ...


    By DEVISE ENGINEERING S.A.

  • Heard County Water Authority - Holistic approach - Case Study

    Location: Franklin, Georgia Owner: Heard County Water Authority Engineer: Hayes, James, & Associates Contractor: P.F. Moon Outdated Equipment The Heard County Water Authority serves over 380 connections in and around Franklin, Georgia. With a growing population, Heard County was beginning to  exceed the capacity of the existing wastewater treatment ...


    By WesTech Engineering, Inc.

  • Chemical wastewater treatment applying a membrane bioreactor (MBR)

    IntroductionAt the current time Membrane Bioreactors (MBR) are the primary focus of wastewater treatment technologies. MBR is a combination of biological activated sludge process for the removal of nutrients and a membrane filtration for separation of biomass and treated water. In industrial wastewater treatment MBRs have proven to be a particularly reliable technique [Cornel et al., 2006]. The ...


    By MICRODYN-NADIR GmbH

  • Newport News, VA case study

    The Challenge - Retrofit The James River Treatment Plant (JRTP) is one of nine major treatment plants operated by the Hampton Roads Sanitation District (HRSD) in southeast Virginia. The JRTP discharges into the James River, a major tributary to the lower Chesapeake Bay. To meet the goals of the James River Waste Load Allocation, the Virginia Department of Environmental Quality issued HRSD a ...

  • Design and operating experiences of full-scale municipal membrane bioreactors in Japan

    In Japan, membrane bioreactor (MBRs) have been installed in 17 small-scale municipal wastewater treatment plants (WWTPs) in the past 8 years, together with two recently installed MBRs for larger-scale WWTPs. In this study, design and operating data were collected from 17 of them as part of a follow-up survey, and aspects including system design, biological treatment, membrane operation, problems ...


    By IWA Publishing

  • Phosphate Fertilizer Plants Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

  • A Comparison of Operating Strategies – Chlorine vs UV

    ABSTRACTCity of Scott’s Valley owns and operates a 1.5 mgd activated sludge wastewater treatment plant. Currently about 0.3 mgd of the secondary effluent is diverted to the recycled water facility. Two chlorine disinfection alternatives (both using liquid sodium hypochlorite) and UV disinfection were considered to all the facility to achieve high level (Title 22) disinfection requirements from ...

  • Sheraton Club des Pins, Alger case study

    Belonging to the famous Sheraton hotel chain, the Club des Pins hotel in Alger, Algeria, has 420 rooms and the best conference center in Algeria. For the wastewater treatment of the hotel and its important business center, the Club des Pins installed in 1998 a BIOTOUR system developed by H2O Innovation. The main function of the BIOTOUR is to trickle the polluted water onto a bacterial bed which ...


    By H2O Innovation

  • Full scale municipal implementations of the Agar IFAS process for municipal wastewater treatment

    Wastewater treatment plant retrofits worldwide are motivated by two main developments: a. Changes in effluent quality regulations, either to more stringent BOD/TSS requirements, or to include nutrient (N and P) removal b. Increase in flows to existing plants, due to either population growth or to expansion of sewerage systems One process capable of giving a cost-effective solution for these two ...

  • Membrane Bioreactor for National Park

    The problem: Assateague Island is a barrier island that stretches from the Eastern shore of Maryland down Atlantic coast to Virginia. The island is a National Park, administered by the National Park Service, under the National Seashore division. Assateague Island is a vital resting and feeding area for birds and also is home to more than 300 wild ponies. The park receives about 1 ...


    By Dynatec Systems Inc.

  • WWTP Marines, Spain upgrading a municipal WWTP using AGAR® technology A Case Study

    Case Study: Municipal plantStart up: May 2007Capacity: 380 m3/d Abstract In view of EU directives for effluent discharge, it was required to upgrade the local sewage plant in the town of Marines, Valencia (Spain). The technology chosen for the project was AGAR® (Attached Growth Airlift Rector) of AqWise - Wise Water Technologies Ltd. La Entidad Pública de ...

  • Case study – frozen food applications

    Introduction Clean Water Technology Inc. (CWT), the creator of the Gas Energy Mixing (GEM) System, offers the most advanced primary treatment system on the market. The GEM System provides superior reduction of total suspended solids (TSS), biological and chemical oxygen demand (BOD/COD), fats, oils and grease (FOG) and turbidity and at the same time provides complete expandability in terms ...


    By Clean Water Technology, Inc.

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