baffle system Articles

  • Floating baffle system improves lagoon efficiency by 90%

    Industries and municipalities that deal with wastewater treatment are concerned with improving the efficiency of their wastewater treatment facilities. Lagoon efficiency, cost effective treatment, and low maintenance are important factors when purchasing treatment upgrades. Environetics, Inc. took these factors inlo consideration when they designed the Director floating baffle System. ...


    By Environetics, Inc.

  • Vortex in baffled surface aerator

    Baffled surface aerator and mixing tanks are different on the basis of the rotor placement. In mixing tanks, rotors are placed very deep in the tank, thus vortex creation can be prevented by placing the baffles. By definition, rotors are placed at or near the surface of water in surface aeration systems; complete prevention of vortex creation cannot be achieved by installing the baffles. Vortex ...


    By Inderscience Publishers

  • The use of the anaerobic baffled reactor for wastewater treatment: A review

    A review concerning the development, applicability and possible future application of the anaerobic baffled reactor for wastewater treatment is presented. The reactor design has been developed since the early 1980s and has several advantages over well established systems such as the upflow anaerobic sludge blanket and the anaerobic filter. These include: better resilience to hydraulic and organic ...


    By United Utilities

  • The energy-saving anaerobic baffled reactor membrane bioreactor (EABR-MBR) system for recycling wastewater from a high-rise building

    A novel energy-saving anaerobic baffled reactor–membrane bioreactor (EABR-MBR) system has been developed as a compact biological treatment system for reuse of water from a high-rise building. The anaerobic baffled reactor (ABR) compartment had five baffles and served as the anaerobic degradation zone, followed by the aerobic MBR compartment. The total operating hydraulic retention time ...


    By IWA Publishing

  • Performance evaluation of an anaerobic baffled reactor Treating wheat flour starch industry wastewater

    During the last 30 years, there has been an increasing demand for more efficient systems for the treatment of wastewater due to increasingly stringent discharge standards now widely adopted by various national and international agencies (Akunna and Clark, 2000). The treatment of both domestic and industrial wastewater is usually carried out using biological methods due to their lower costs ...


    By University of Tehran

  • The anaerobic baffled reactor (ABR) treating communal wastewater under mesophilic conditions: a review

    A review concerning the anaerobic baffled reactor (ABR) treating communal wastewater under mesophilic conditions is presented. Existing studies indicate strong resilience of the reactor towards loading variations and shock-loads. The compartmentalisation of the ABR is a strongly stabilising factor with feed fluctuations being evened out across reactor chambers. Significant chemical oxygen ...


    By IWA Publishing

  • Water system master plan

    Client: City of Fort Smith, Ark. Completion Date: 2002 Services Provided Water supply/delivery Hydraulic modeling and design Water quality analyses Water supply hydrology Flood hydrology 3-D project rendering Physical hydraulic models Spillway hydraulics ...


    By Burns & McDonnell

  • Losing system pressure - positive displacement pumps

    In a positive displacement pump, flow is directly related to RPM and pressure by the restriction of the flow in the discharge line. Once the system pressure is set, any change in flow will result in a change in pressure. These changes in flow can occur from certain conditions in the pump inlet line, the pump itself, the pump drive or in the pump discharge line. Pump Inlet The ...


    By Cat Pumps

  • TB 59: Optimized deaeration system for Paulaner Brewery

    The Centec DGS System is a modular, water deaeration process that uses hydrophobic Hollow Fiber Membrane to remove dissolved gasses from liquids in the beverage industry. This technical brief covers the unit’s design, operation and resulting reduction of energy consumption costs. Gas transfer starts with the basic principle that the concentration of dissolved gasses in water is proportional to ...

  • Primary Treatment in Onsite Systems: Factors that Influence Performance

    ABSTRACTMethodology, preliminary results and future plans for an on-going Water Environment Research Foundation (WERF) funded research project, WERF project number 04-DEC-7, are presented. The objective of this project is to identify, compile, analyze, and report on the existing body of literature and other data sources addressing the performance of primary treatment units (septic tanks and ...

  • Super Size My Stormwater Treatment System, Please!

    Many municipalities have vast areas of developed impervious acreage from which stormwater drains without any form of treatment. These drainage systems were designed decades ago, predating regulatory requirement for nonpoint source pollution control. Every year pollutants from these sites discharge high levels of sediment, nutrients, trash, and heavy metals into local waters, impairing usage, ...


    By BaySaver Technologies, Inc.

  • Combination of bespoke and standard ACO surface water drainage systems

    A series of unique, high performance channel drainage systems designed and manufactured by ACO Technic, the bespoke product development division of water management specialist ACO Technologies, has been installed across Heathrow's award winning Terminal Five. As well as helping to overcome some significant challenges posed by the site's design, the systems have played a key role in creating some ...


    By ACO Group

  • Temporary treatment systems for large construction site in Stratford, East London

    Filter refurbishment program for 2000 site workers/staff Site Contractor: Natta Building Company Peak flow to treatment: 10.5l/s Designed consent standard: 20 mg/l BOD, 30 mg/l TSS & 10 mg/l NH4 Maximum incoming BOD: 380 mg/l Maximum incoming NH4: 50 mg/l Units supplied: 4 off 300pe GRP units 1 off 750pe steel unit 2 off HB50 Lamella settling tanks (primary and ...


    By WPL Ltd

  • Temporary treatment systems for large construction site in Stratford, East London case study

    Posted March 2009 by WPL Limited Filter refurbishment program for 2000 site workers/staff Site Contractor: Natta Building Company Peak flow to treatment: 10.5l/s Designed consent standard: 20 mg/l BOD, 30 mg/l TSS & 10 mg/l NH4 Maximum incoming BOD: 380 mg/l Maximum incoming NH4: 50 mg/l Units supplied: 4 off 300pe GRP ...


    By WPL Ltd

  • Simple protocols for assessing dissolved air flotation systems: quantification of released air, bubble density and cloud patterns

    Dissolved air flotation (DAF) systems are useful for many water treatment applications. Optimizing a DAF system can be very difficult and complicated due to a multitude of variables that contribute to effective separation. Pressure, temperature, retention time and air mixing affect the ability of the saturator to increase air solubility, while baffle heights, flow rates and recycle ratios affect ...


    By IWA Publishing

  • Using submersible fluorescence sensors to track the removal of organic matter in decentralized wastewater treatment systems (DEWATS) in real time

    Decentralized wastewater treatment systems (DEWATS) using anaerobic treatment are increasingly being considered for wastewater treatment with options for non-potable water reuse at the community scale. One challenge for ensuring performance and reliability of DEWATS is the lack of suitable on-site sensors to monitor failure or contamination events. In this study, the aim was to use in situ ...


    By IWA Publishing

  • Electronics Industry: Silicon Tetrachloride Fume Problem Solved Electronics industry Two-Stage Scrubber system Solves Fume Proble case study

    A two-stage Jet-Venturi scrubber/packed tower system solved a number of pollution problems for an Albany, Oregon, company. The Zirconium Extraction Div. of Teledyne Wah Chang produces high-quality reactor-grade zirconium and hafnium ozide using a chemical separation process. The zirconium and the hafnium are chlorinated and then formed into pure metals for the nuclear and chemical process ...


    By CR Clean Air Group, LLC

  • NEFCO™ Awarded new patents case study

    NEFCO™ has been granted two new patents for its Dual Surface Baffle System. The Dual Surface Baffle was developed from work done as a part of NEFCO’s on-going Computational Fluid Dynamics (CFD) Density Current Baffle Study. The first, US Patent No. 7,556,157, describes a Dual Surface Baffle with a curved lower baffle segment. The second, US Patent No. 7,726,494, describes a Dual ...


    By NEFCO, Inc.

  • The Monclova experience case study

    The Town of Monclova, Mexico found it necessary to increase the hydraulic capacity of its municipal wastewater treatment plant by 35% – from approximately 11.5 MGD to 15.5 MGD. The increase in flow was accomplished by upgrading the plant’s biological treatment process. Once the modifications were completed, the flow through the plant was gradually increased. As the increased flow ...


    By NEFCO, Inc.

  • Experimental study of a novel hybrid constructed wetland for water reuse and its application in Southern China

    A new type of hybrid constructed wetland (CW), consisting of both vertical-baffled flow wetland (VBFW) and horizontal subsurface flow wetland (HSFW), has been deployed in Southern China to naturally accelerate the removal of organic matter and nitrogen. The hybrid CW system is characterised by a combination of continuous baffled flow vertical wetland and ‘S’ pattern horizontal subsurface flow ...


    By IWA Publishing

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