continuous sludge level measurement Articles

  • Wastewater Level Measurement Techniques

    Level monitoring and control is a fundamental requirement in any wastewater treatment process. You will find level instrumentation installed at even the simplest treatment plants for pump control, chemical storage tanks and process level controls or alarms. Operators have only limited or emergency control over treatment plant influent, so level controls and instrumentation play an important role ...


    By Greyline Instruments Inc.

  • Ultrasonic level measurement: a Modern Classic!

    Radar technology has long had the reputation of being the best method of level measurement available - but does this also apply to the wastewater market? Based on its physical characteristics, radar technology certainly offers great flexibility and high performance. However, from an objective standpoint, non-contact level measurement using ultrasound is often the first choice and also the right ...


    By Endress Hauser

  • New sludge blanket level analyzer from Entech

    Entech Design, Inc.’s BinMinder 9300 features a multi-channel analyzer designed for superior sludge level detection in the full range of water and wastewater applications. The system consists of an analyzer that is capable of operating from one to four sensors or transducers for reliable and cost-effective measurement. Measurements are made by transmitting a high frequency sound wave and ...


    By Entech Design, Inc.

  • Technical Focus: Sludge Blanket

    Regardless of treatment process, sludge blanket control is an important aspect of any wastewater treatment plant, and correct monitoring and treatment of sludge is paramount for efficiency and cost control. Manual monitoring of sludge blanket levels is an occasional and often rushed method of control and can lead to inaccuracies being compounded over time, potentially leading to overspill into ...


    By Partech (Electronics) Ltd.

  • ppm Dissolved oxygen measurement

    Dissolved oxygen (D.O.) levels are used as a general indicator of water quality. Oxygen is essential to life and vital for countless aquatic forms. D.O. level control is critical in numerous applications ranging from the monitoring of industrial waste water to environmental surveillance. What is Dissolved Oxygen? Dissolved oxygen (D.O.) is the amount of oxygen gas dissolved in a ...


    By IC Controls Ltd.

  • Heavy metal & hydrocarbon contaminated sludge

    Solidification of Heavy Metal & Hydrocarbon Contaminated Sewage Sludge Client: North Lanarkshire Council Project Managers: Jacobs Challenge: The former sewage treatment works were decommissioned in the 1970’s. It is thought that during the closure process, demolition material originating from the ...


    By Soilutions Ltd

  • Faecal sludge management - Malaysia Philippines

    1. Overview and key points Malaysia has been recognised to have adopted a good sanitation model through the use legislative reforms and implementation models. A firm set of guidelines along with clear knowledge on the role played by every stakeholder, especially that of developers whose responsibility it is to construct their own wastewater treatment, enabled an increase in sanitation coverage ...


    By IWA Publishing

  • Behaviour and adsorptive removal of siloxanes in sewage sludge biogas

    We investigated the behaviour of siloxanes, which adversely affect biogas engines, as well as their concentration levels in sewage sludge biogas in Japan. We also performed experiments on the absorptive removal of siloxanes using various adsorbents and determined the main adsorbent characteristics required for the removal of siloxanes. The results of our study on the concentration and composition ...


    By IWA Publishing

  • Geotube Dewatering for Lagoon Sludge - Case Study

    Background In many animal waste management schemes it is desirable to separate solids from waste water and/or manures. In cooperation with the Department of Animal and Dairy Science, animal waste specialists from Biological and Agricultural Engineering are field testing a technology new to agriculture, to remove solids from lagoons. The test is currently being conducted at the UGA Dairy ...

  • Evaluation of extracellular biopolymer and its impact on bioflocculation in activated sludge bioreactors

    The influence and dynamics of bacterial extracellular polysaccharide (EPS) polymer production and its impact on bioflocculation in activated sludge (AS) bench-scale reactors were investigated. The impact of food to microorganism ratio (F/M), reactor configuration and easily biodegradable carbohydrates in influent streams on biological processes that support or weaken good floc formation and the ...


    By IWA Publishing

  • The Use of Oxidation-Reduction Potential as a Means of Controlling Effluent Ammonia Concentration in an Extended Aeration Activated Sludge System

    ABSTRACTThis study developed a strategy to control effluent ammonia from an activated sludge system, using oxidation-reduction potential. By controlling effluent ammonia concentrations, disinfection of treated wastewater is more cost effectively achieved by chloramination rather than break-point chlorination. The system under consideration was an extended aeration oxidation ditch. The study takes ...

  • Biomass properties and permeability in an immersed hollow fibre membrane bioreactor at high sludge concentrations

    This study aimed to investigate the influence of biomass properties and high mixed liquor suspended solids (MLSS) concentrations on membrane permeability in a pilot-scale hollow fibre membrane bioreactor treating domestic wastewater. Auxiliary molasses solution was added to maintain system operation at constant food-to-microorganisms ratio (F/M = 0.13). Various physicochemical and ...


    By IWA Publishing

  • Primary clarification evaluation and optimization study

    This report describes the evaluation and optimization of primary clarifiers at the San Jose/Santa Clara Water Pollution Control Plant. Part 1 of this report examines the individual effect of the concentration of non-settleable solids, detention time, clarifier depth, sludge blanket level, and design feature of the clarifier on primary effluent quality and removal efficiency. Part 2 of this report ...


    By Entech Design, Inc.

  • CH#826 - Municipal Oxidation Ditch

    BackgroundThe treatment plant at this Midwestern City is a well operated facility treating approximately 1.1 mgd municipal waste from the surrounding community. Over the past several years the publicly owned treatment works has consistently been able to produce an excellent quality effluent with respect to BOD, suspended solids, ammonia and phosphate. To achieve this level of treatment, the ...


    By BIO-SYSTEMS International

  • Improving Biological Wastewater Treatment Process Control through ATP-Based Parameters

    ABSTRACTBiological wastewater treatment processes harness the ability of microorganisms to break down and assimilate organic compounds that, if left untreated, cause detriment to the environment. Although this process occurs naturally, engineered systems are used to accelerate the process by optimizing bioreactor conditions to promote higher-than-typical biomass concentrations, thus increasing ...

  • Geotube Dewatering Technology Solves Lagoon Cleanout for Mexico’s Largest Chicken Processing Plant - Case Study

    Mexico's largest chicken processing plant was experiencing high levels of BOD discharge into the local river because their two sludge lagoons were full of high percentage solids sludge. The plant was expanding operations and had no place to store the additional sludge that would be generated, nor did it have any onsite means of removal and dewatering. The problem was compounded because the excess ...

  • Municipal Wastewater Treatment - Prichard, Alabama - Case Study

    TenCate  develops and produces materials that function to increase performance, reduce costs, and deliver measurable results by working with our customers to provide advanced solutions. THE CHALLENGE Prichard AL is a town of about 30.000 people north of Mobile. AL Paul David, the Sewer Board Superintendent, oversees the contract management of two (21 ...

  • Gas Detection and Monitoring Systems

    In greenhouse applications, the accurate measurement of a number of environmental parameters such as carbon dioxide concentration, temperature, light intensity, water, humidity, pH and nutrient levels using sophisticated sensors is used to create a controlled environment for optimising plant growth rates while minimising energy usage. Carbon dioxide concentration is also one of the best ...


    By Edinburgh Instruments Ltd

  • A short-term investigation using In-situ ammonia monitoring at a WWT, M Keown Severn Trent Water

    Summary: Two separate inlet streams are received for treatment at this works, one being predominantly domestic in origin and the other being predominantly industrial, arising from a local dye works. Their treatment is kept completely separate with municipal stream being subject to preliminary treatment, primary settlement, and secondary treatment in surface aerated activated sludge ...


    By Envitech Ltd.

  • Adapter bacteria control oil spill in bulk

    Introduction Microbac was called in to advise on a required treatment for an integrated bulk oil handling facility and sea-land terminal, receiving, storing and shipping a wide variety of liquid fuels, inorganic chemicals and petrochemicals, many of which are toxic to microorganisms. The variable and complex waste streams from tank truck cleaning, ballast and tank cleaning discharges from ...


    By Microbac Ltd

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