biological oxygen demand monitoring system Articles

  • Monitoring and control of a partially packed biological aerated filter (BAF) reactor for improving nitrogen removal efficiency

    This paper examines on-off systems and automatic monitoring and control of a biological aerated filter to identify the end point of nitrification and denitrification processes, and chemical oxygen demand (COD), ammonia-nitrogen removal (NH3-N) and aeration savings. Oxidation-reduction potential (ORP), pH and dissolved oxygen (DO) were measured on-line and chemical parameters were measured in the ...


    By IWA Publishing

  • Organics Monitoring: A Practical Guide

    Preventing product loss, lowering waste treatment costs, and reducing system maintenance and energy consumption through organics monitoring in the chemical, refining, food, and wastewater treatment industries. Summary Process water and steam condensate contamination includes organic, inorganic, and biological components. Sources of organic contamination include process ...


    By GE Analytical Instruments

  • Wastewater Treatment Plant Monitors Greenhouse Gas Emissions

    Globally, little attention is paid to gaseous emissions from wastewater treatment processes. This contrasts greatly with the regulatory monitoring that is applied to the quality of water emissions from such facilities. However, in Helsinki, Finland, a large municipal wastewater treatment facility continuously monitors its emissions of greenhouse gases (GHGs) to help in the city’s efforts to ...


    By Gasmet Technologies Oy

  • Treatment plant protected by effluent monitor at major drinks factory

    The installation of a BioTector continuous TOC (Total Organic Carbon) monitor to police the front end of Cobevco’s wastewater treatment plant has enabled tight control of the treatment process. Delivering results 20 times faster than laboratory techniques, the monitor at the Elton facility in Cheshire provides advance notice of organic overload so that the plant is able to instantly divert ...


  • Performance-Based Measurement Systems

    Many of the Environmental Protection Agency's (EPA's) methods used to monitor air, water and soil for environmental contaminants prescribe step-by-step details on how the chemical analysis must be conducted and prohibit any deviations or variations. The EPA has recognized that monitoring equipment and technology have improved tremendously over the last few years; that environmental media do not ...


    By WSP | Parsons Brinckerhoff

  • Real-time monitoring of membrane bioreactors with 2D-fluorescence data and statistically based models

    The application of membrane bioreactors (MBR) for wastewater treatment is growing worldwide due to their compactness and high effluent quality. However, membrane fouling, mostly associated to biological products, can reduce MBR performance. Therefore, it is important to monitor MBRs as close to real-time as possible to accelerate control actions for maximal biological and membrane performance. ...


    By IWA Publishing

  • Efficiency of wastewater treatment in SBR and IFAS-MBSBBR systems in specified technological conditions

    The objective of this study is to compare wastewater treatment effectiveness in sequencing batch reactor (SBR) and integrated fixed-film activated sludge–moving-bed sequencing batch biofilm reactor (IFAS-MBSBBR) systems in specific technological conditions. The comparison of these two technologies was based on the following assumptions, shared by both series, I and II: the reactor's active ...


    By IWA Publishing

  • Performance Evaluation of a Full-Scale Extended Aeration System in Al-Bireh City, Palestine

    Major challenges attributed to dysfunctional wastewater treatment facilities in developing countries include lack of commitment and poor informed decision making by the higher municipal administration. This paper presents how process monitoring and control during full scale operation ensures sustainability of civic infrastructures like Al-Bireh wastewater treatment plant (AWWTP). It is written ...


  • A performance evaluation of three membrane bioreactor systems: aerobic, anaerobic, and attached-growth

    Water sustainability is essential for meeting human needs for drinking water and sanitation in both developing and developed countries. Reuse, decentralization, and low energy consumption are key objectives to achieve sustainability in wastewater treatment. Consideration of these objectives has led to the development of new and tailored technologies in order to balance societal needs with the ...


    By IWA Publishing

  • Introduction to the BioCar Nature Based Transportation Systems

    The people of the world are rapidly growing aware of the full impact of current transport systems upon their safety, economy, health and environment. This has not been lost on the major auto companies who have spent millions of man-hours and billions of dollars over the last decade in pursuit of the Next Generation Vehicle. But they have little to show for their efforts having been increasingly ...


  • Introduction to Decentralized Packaged Wastewater Treatment (PWWT) Systems - PDH Article

    Learning Objectives After reading this article, you should understand: Functions and processes of a decentralized PWWT system; Design considerations of a PWWT system. Overview "Clean water will be the oil of the 21st Century." The accuracy and magnitude of this statement is resonating worldwide. ...

  • Tech-IA floating system introduced in urban wastewater treatment plants in the Veneto region – Italy

    The performance of three integrated wetland treatment plants (horizontal sub-surface flow (h-SSF) and floating treatment wetland (FTW) with differentiated primary treatments) designed for treating domestic wastewater was investigated, monitoring total (TN), nitrate (NO3-N), nitrite (NO2-N) and ammonia nitrogen (NH4-N), total (TP) and phosphate phosphorus (PO4-P), ...


    By IWA Publishing

  • How to Choose the Best Wastewater Treatment System for Your Plant

    For industrial companies producing wastewater as a byproduct of their process, some type of wastewater treatment system is usually necessary. Failing to properly treat your wastewater can potentially harm the environment, human health, and your process, in addition to causing your facility to incur heavy fines and possible legal action if it is being improperly discharged into a publicly owned ...


    By SAMCO Technologies, Inc.

  • ON-SITE SEWAGE SYSTEMS: NEW OUTLOOK FOR DECENTRALIZED WASTEWATER TREATMENT

    As researchers analyze the soils’ ability to absorb discharge, more knowledge is gained about alternatives to septic tanks and standard drain fields that include peat filter systems, constructed wetlands and drip irrigation. ONE out of every four American households currently treat and release wastewater on their own property. Although most people assume that on-site systems are confined to rural ...


  • Sustainable wastewater separation treatment systems coupled with nutrient and water reducing greywater reuse technologies

    Nationally and internationally, pressure is increasing to introduce nutrient reducing, water conserving and recycling measures for sustainable residential and small community water/wastewater systems. Reports of inadequate water quality and quantity are being reported daily. Over the past thirty years the federal government and State of Alaska have invested over 4 billion dollars installing piped ...


    By Equaris Corporation

  • Compost Leachate Pond Bioremediation Case Study - Composting Facility, Northern California

    Our client runs a composting facility that receives green waste, food waste and other compostable material from residential and commercial sources, to create rich, black compost Challenge As part of the facility, the compost leachate pond has repeatedly experienced problems with the incoming influent high chemical oxygen demand (COD) and ...

  • Material flow analysis of pollutants in Taiwan

    We present a material flow analysis (MFA) of biological oxygen demand (BOD5) and suspended solids (SS) in estuaries located on the northern and southern coasts of Taiwan. Using data from 1992–2000, we examine human economic activities in each watershed to predict associated pollutant flows. This estimate is compared to data collected at monitoring stations. The ratio allows us to calculate each ...


    By Inderscience Publishers

  • Minimisation of Hazardous Waste: Bayer Formulation Plant

     Background Bayer Australia Limited formulates agricultural and veterinary products for the Australian and New Zealand markets at their Wyong Formulation Plant in NSW. Due to the nature of the materials the company has adopted a vigorous approach towards monitoring the quality and minimising the quantity of the waste it generates. In January 1992 the company launched a waste ...


  • Sequencing batch reactor

    Sequencing batch reactors (SBR) or sequential batch reactors are industrial processing tanks for the treatment of wastewater. SBR reactors treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make suitable ...


    By IWA Publishing

  • Sequencing batch reactor

    Sequencing batch reactors (SBR) sequential batch reactors are industrial processing tanks for the treatment of wastewater. SBR reactors treat waste water such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches. Oxygen is bubbled through the waste water to reduce biochemical oxygen demand (BOD) and chemical oxygen demand (COD) to make suitable for ...


    By IWA Publishing

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