BOD control Articles

  • Managing Ponds for BOD Reduction and Odor Control

    A large number of food processors utilize ponds to treat their wastewater. Most of the time these ponds are aerobic in which they use oxygen to degrade the wastewater biological oxygen demand (BOD). Fruit and vegetables contain a high amount of simple sugars and other organic compounds that when exposed to water are released into the water stream. These organic compounds require oxygen to degrade ...


    By Integrated Engineers Inc.

  • Biodegradability of Dissolved Organic Nitrogen: Adaptation of the BOD Test

    To prevent eutrophication in receiving waters, many astewater treatment plants are being firected by regulatory agencies to achieve very low levels of total nitrogen (3-4 mg/L TN or lower) in the effluent. Dissolved organic nitrogen (DON) component is included within these total nitrogen limits. The regulations assume that DON is completely biodegradable, and therefore needs to be included in any ...

  • In-Situ® RDO® Methods for Analysis of BOD, CBOD, and DO

    Background — Dissolved Oxygen Measurement Since the publication of the Winkler method for measuring dissolved oxygen (DO) (Winkler 1888), the analysis of DO levels for water has been key to determining surface water purity and ecological wellness. The Winkler method is still one of only two analytical techniques used to calibrate oxygen electrode meters, the other procedure being based ...


    By In-Situ, Inc.

  • Q-PAC® supports biological growth for BOD reduction

    Patented Bioreactor uses Q-PAC Randomly Packed Media in Application of Specific Bacterial Cultures for Treating High Strength Industrial Waste for BOD and Odor Reduction in a Cheese Manufacturing Plant A cheese manufacturer in Upstate New York with one three million gallon lagoon is testing a bioreactor (TVTBIO 32) from TVT US Corporation. The concept is essentially the same as bacteria eating ...


    By Lantec Products, Inc.

  • A recursive approach for numerically identified DO–BOD interaction and kinetic formulation for water quality probability

    In the late 1960s, the mounting public pressure in the developing countries for control of pollution stimulated investment in a host of special studies to find the best alternative ways of protecting the aquatic environment. One of the most important parameters for knowing the water quality is Dissolved Oxygen (DO) because various other parameters are interrelated with it and changes accordingly ...


    By Inderscience Publishers

  • Farmington water pollution control authority case study

    Performance History and Discussion The Farmington Water Pollution Control Authority (FWPCA) selected In-Pipe Technology to improve the performance of the WWTP by reducing sludge production and improving the nitrogen removal efficiency of the treatment process. Additional benefits of In-Pipe service include improving effluent water quality, reducing energy consumption at the plant and ...

  • Cardiff WWTW aeration optimisation through scientific control

    Aeration optimisation of a 16 basin SBR plant running in ICEAS (Intermittent Cycle Extended Aeration System) mode was under taken by changing the operating parameters from the traditional design of dissolved oxygen (DO) control to a scientific approach using respirometry. Measuring the critical oxygen point for carbonaceous and nitrification bacteria and combining this with in-situ Oxygen Uptake ...

  • Control Algae and Improve the Water Quality in Waste Stabilization Ponds

    Due to population growth, accelerated urbanisation and economic development, the quantity of waste water generated is increasing globally. Mainly in low-income areas, a large proportion of the waste water is discharged directly in the environment. When the waste water is treated, the treatment plants may not remove certain pollutants that can have a negative impact on the people and ecosystem. ...


    By LG Sonic

  • Effects of open water on the performance of a constructed wetland for nonpoint source pollution control

    The seasonal performance of four differently configured constructed wetland systems was compared for the treatment efficiency of nonpoint source pollution. Dead plants in the constructed wetlands increased the nitrogen removal rate during winter by providing organic carbon, which is essential for the denitrification process. However, when the wetlands released phosphorus from the dead plants, the ...


    By IWA Publishing

  • ORP and pH Based Control of SBR Cycles for Nutrient Removal from Wastewater

    ABSTRACTContinuous monitoring of multiple process functions were conducted involving removals of BOD, TSS and nutrients, in each cycle of the SBR reactor at the wastewater treatment plant of the City of Carrabelle, FL. On line, real time, monitoring of pH, oxidation reduction potential (ORP), dissolved oxygen (DO), ammonia-N, nitrite-N, nitrate-N and orthophosphate-P demonstrated excellent ...

  • Ultrasound technology in water treatment: Algae control and reduction of biofilm formation

    Recent research projects have underlined the potential of ultrasound as a chemical free treatment in water-related applications. This article reviews the use of ultrasound produced by the LG Sonic technology, with a focus on wastewater, irrigation and aquaculture applications. Sound Sound can be described as mechanical energy transmitted by pressure waves in a material medium. Thus, sound can ...


    By LG Sonic

  • Urban water reuse: microbial pathogens control by direct filtration and ultraviolet disinfection

    Physicochemical treatment efficiency for unrestricted urban water reuse was evaluated at a conventional activated-sludge wastewater treatment plant (WWTP). Pilot plant set-up consisted of an alum coagulation step, granular media upflow flocculation and direct downflow dual-media filtration followed by ultraviolet disinfection (dose of 95 mJ cm−2). Optimum aluminum sulfate dosage of 10 mg ...


    By IWA Publishing

  • An aeration control strategy for oxidation ditch processes based on online oxygen requirement estimation

    A feedforward-feedback aeration control strategy based on online oxygen requirements (OR) estimation is proposed for oxidation ditch (OD) processes, and it is further developed for intermittent aeration OD processes, which are the most popular type in Japan. For calculating OR, concentrations of influent biochemical oxygen demand (BOD) and total Kjeldahl nitrogen (TKN) are estimated online by ...


    By IWA Publishing

  • Energy savings, Mixing, & Odor control- Industrial & municipal wastewater - Case study

    Overview: This wastewater treatment plant (WWTP) consists of two separate treatment avenues for residential and industrial wastewater flows. The industrial waste stream varies seasonally, and comes from food processing wastes from poultry processing, baby food processing, and winery waste. Average influent ranges are 0.2 -0.4 MGD for flow, 600-2,300 mg/L BOD, and 87-148 mg/L ammonia. Following ...


    By Medora Corporation

  • Using a constructed wetland for non-point source pollution control and river water quality purification: a case study in Taiwan

    The Kaoping River Rail Bridge Constructed Wetland, which was commissioned in 2004, is one of the largest constructed wetlands in Taiwan. This multi-function wetland has been designed for the purposes of non-point source (NPS) pollutant removal, wastewater treatment, wildlife habitat, recreation, and education. The major influents of this wetland came from the local drainage trench containing ...


    By IWA Publishing

  • Tomato Processor Pilot Bioreactor

    98% Average Reduction in BOD & TSS A tomato processing facility was required by the city to reduce BOD from 4,000 ppm to 200 ppm. Integrated Engineers proposed a small scale Bioreactor to prove the effectiveness of the activated sludge process on the customer’s wastewater as well as establishing the parameters for a full scale system design. The trailer mounted ...


    By Integrated Engineers Inc.

  • Relationship between land use and water quality in a small watershed in South Korea

    Recent research and monitoring undertaken by various institutions have emphasized measurements of river-water quality. Based on the results, government agencies have set guidelines to improve river-water quality management. However, the relationship between water quality and land use/land cover (LULC) has not been examined closely in South Korea to date. This study investigated this relationship ...


    By IWA Publishing

  • Risk analysis of seasonal stream water quality management

    Seasonal discharge programs, which take advantage of temporal variation of stream assimilative capacity, are cost effective. However, these seasonal discharge control programs should not increase the risk of water quality violations. A method is presented to estimate the allowable pollutant loads under both seasonal and non-seasonal discharge control programs for a single discharger that ...


    By IWA Publishing

  • Risk analysis of seasonal stream water quality management

    Seasonal discharge programs, which take advantage of temporal variation of stream assimilative capacity, are cost effective. However, these seasonal discharge control programs should not increase the risk of water quality violations. A method is presented to estimate the allowable pollutant loads under both seasonal and non-seasonal discharge control programs for a single discharger that ...


    By IWA Publishing

  • Generating Low Nitrogen Class A Reclaimed Water Achieved by Coupling Satellite MBRs with a BNR Activated Sludge System

    The LOTT Alliance in Olympia WA has created an integrated system-wide plan for managing flow and nitrogen emissions by linking a series of satellite reclamation plants (SRPs) to the main Budd Inlet Wastewater Treatment Plant (BIWWTP) that uses BNR activated sludge. At specific times during the year, their NPDES permit requires that flow be capped to the main treatment plant and stringent ...

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