sbr reactor Articles

  • Ecoprocess Sequencing Batch Reactor (SBR) - Municipality of L’Orignal, ON, Canada

    Customers: Municipality of L’Orignal, ON, Canada, Ontario Clean Water Agency (OCWA) The Ontario Clean Water Agency (OCWA) is a Crown Agency of the Province of Ontario in the business of providing safe and reliable clean water services. OCWA provides operation, maintenance and management services for over 500 water and wastewater treatment facilities and their associated distribution ...


    By Premier Tech Aqua

  • Ecoprocess Sequencing Batch Reactor (SBR) - Waste Management, QC, Canada

    Customer: Waste Management, QC, Canada Waste Management, Inc. is the leading provider of comprehensive waste and environmental services in North America. The company is strongly committed to a foundation of financial strength, operating excellence and professionalism. Waste Management currently operates ten full-scale waste treatment landfill projects in the U.S. and Canada. ...


    By Premier Tech Aqua

  • Ecoprocess Sequencing Batch Reactor (SBR) - Municipality of Cardinal, ON, Canada

    Customer: Municipality of Cardinal, ON, Canada Facts The Regulations for water and wastewater treatment in Ontario entered into many changes over the last few years. Under new regulations, Ontario municipalities have to comply with much stricter discharge standards. Casco Inc., the first corn refining operation in Canada, located in the Township of Edwardsburg, ...


    By Premier Tech Aqua

  • Assessment of nitrogen and phosphorus removal in an intermittently aerated sequencing batch reactor (IASBR) and a sequencing batch reactor (SBR)

    Biological nitrogen and phosphorus removal was investigated in an intermittently aerated sequencing batch reactor (IASBR) and a sequencing batch reactor (SBR). The removal efficiencies of ammonium-nitrogen (NH4+-N) were 100% in both reactors in steady operation state. The total nitrogen (TN) removal efficiencies were 90.4% in the IASBR and 79.3% in the SBR, ...


    By IWA Publishing

  • A combined hydraulic and biological SBR model

    A sequencing batch reactor (SBR) model was developed consisting of six continuous stirred tank reactors which describe the hydraulic flow patterns occurring in different SBR phases. The model was developed using the results of computational fluid dynamics (CFD) simulation studies of an SBR reactor under a selection of dynamic operational phases. Based on the CFD results, the model structure was ...


    By IWA Publishing

  • Co-treatment of old landfill leachate and municipal wastewater in sequencing batch reactor (SBR): effect of landfill leachate concentration

    Sequencing batch reactor (SBR) was assessed for direct co-treatment of old landfill leachate and municipal wastewater for chemical oxygen demand (COD), nutrients and turbidity removal. Nitrogen removal was achieved by sequential nitrification and denitrification under post-anoxic conditions. Initially, SBR operating conditions were optimized by varying hydraulic retention time (HRT) at 20% ...


    By IWA Publishing

  • The Variation of Nitrifying Bacterial Population Sizes in a Sequencing Batch Reactor (SBR) Treating Low/Mid/High Concentrated Wastewater

    ABSTRACTThe purpose of this study was to correlate the population size of ammonia-oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) with nitrification performance under various operational conditions (chemical oxygen demand (COD) concentration, dissolved oxygen (DO), and hydraulic retention time (HRT)) and influent allythiourea (ATU) shock. The AOB (genera Nitrosomonas and ...

  • A perfect pair: SBR designs & advanced aeration technology

    Conventional sequencing batch reactors (SBRs) that utilize diffused-air networks have existed in the U.S. for about three decades now. The reliability of controls and instrumentation has significantly improved in the last 10 to 15 years, and as a result, SBR plant designs are becoming more widely accepted. The attractiveness of their compact layout and ease of operation has also helped increase ...

  • Effect of extended feeding time on aerobic granulation in SBR

    Two different feeding lengths were applied to control the granule size. It was found that the size of granules was considerably controlled in R2 (60 min for feeding). However, the settleability in R2 was not as good as that in R1 (12 min for feeding). However, this approach of controlling the granule size also loosens the structure concerning on the difference between SVI5 and SVI30, which might ...


    By Inderscience Publishers

  • Modeling Strategy for SBR Recovery after Upset

    The paper presents results of treatability study on wastewater highly contaminated with ammonia (800 mg/l), (phenols (300 mg/l), thiocyanate (210 mg/l), and arsenic up to 11 mg/l. The study was conducted in two sequencing batch reactors (SBRs) using biomass from a coke plant. After two months of acclimatization the biomass was able to remove ammonia to below 1 mg/l and phenols and thiocynate ...

  • Greywater treatment in an aerobic SBR: sludge structure and kinetics

    In order to have an efficient operation, sequencing batch reactors (SBR) must support granular biomass with high conversion rates, settling properties, and be able to deal with the inherent variability of the composition of real wastewaters. In this study, the effect of the influent composition and the specific organic loading rate (Bx) on the granulation process was evaluated in two SBRs, ...


    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

  • 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

  • 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

  • Lipid Degradation in a Two-Phase Anaerobic SBR and Upflow Anaerobic Sludge Blanket

    LCFAs, the intermediate products in lipid biodegradation are known to inhibit microorganisms by their toxicity and floatation. To reduce LCFA inhibition, two-phase anaerobic system, consisting of anaerobic sequencing batch reactor (ASBR) and upflow anaerobic sludge blanket (UASB) reactor, was applied to synthetic dairy wastewater. During 153 days of continuous operation, two-phase system showed ...

  • Potential of nitrous oxide recovery from an aerobic/oxic/ anoxic SBR process

    Nitrous Oxide (N2O) is a kind of greenhouse gas which has a great influence on the global warming. And it is also a powerful oxidant in combustion reactions, which can improve the output power of biogas power generation from 5.7% to 7.3%. It is generally known that the amount of N2O emitted from wastewater treatment is 3% of the total global emissions of N2O. So it is of great significance for ...


    By IWA Publishing

  • Using a continuous-fill, intermittent-discharge SBR to remove biological nutrients

    Five years ago, the Town of Essex, in southwestern Ontario, decided to upgrade its facultative lagoon treatment systems with an alternative wastewater treatment plant — a continuous-fill, intermittent-discharge sequencing batch reactor (CFID-SBR) system, targeting even higher effluent quality. The CFID SBR process was designed by Premier Tech Aqua, which also provided major process ...


    By Premier Tech Aqua

  • Foam control in a food processing wastewater SBR treatment unit case study

    Cost-Effective Biological Foam Control Using Microcat DF Defoamer The sequencing batch reactor activated sludge plant (SBR) operating on a potato processing wastewater is experiencing a severe foaming episode. The foam can reach three inches in depth reducing the efficiency of the surface aerators and causing odors. The treatment system consists of primary filtration and an SBR aeration ...


    By Bioscience, Inc.

  • Acrylic wastewater treatment using SBR technology with aerobic granules

    The acrylic or acrylonitrile wastewater treatment were investigated in experimental SBR systems with aerobic granules. The results showed that the diluted acrylic wastewater 400-800 mgL-1 could finally reach a COD removal 71.5-77.5% and a net COD removal 50.5-59.6%. The growth of aerobic granules in reactor was quite slow and retained MLSS 4.6-6.2 gL ...


    By Inderscience Publishers

  • An EGSB-SBR based process for coupling methanogenesis and shortcut nitrogen removal

    An integrated process consisting of an anaerobic/anoxic expanded granular sludge bed (EGSB) reactor and an aerobic sequencing batch reactor (SBR) was developed by a mode of sequencing batch operation, in which methanogenesis, denitrification and anammox were coupled in EGSB with methanogenesis first, then denitrification and anammox simultaneously, and partial nitrification occurred in SBR for ...


    By IWA Publishing

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