SBR wastewater treatment Articles
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Treatment of odour containing hydrogen sulphide released from pharmaceutical wastewater treatment plant with SBR process by bio-trickling filter
In order to check the removal efficiency of odour containing Hydrogen Sulphide (H2S) from Sequencing Batch Reactor (SBR) process at lower temperature, deodorisation experiment was carried out for four months at pharmaceutical wastewater treatment plant in winter by the bio-trickling filter packed with ZX01 stuffing. The results suggested that the removal efficiency of H2S was higher than 98% and ...
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Practical automatic control of a sequencing batch reactor for toxic wastewater treatment
This paper investigates the application of a practical and robust control strategy for the operation of a sequencing batch reactor (SBR) used for toxic wastewater treatment. The strategy sets the operational conditions of the SBR based on the on-line information collected during the previous batch. In particular, it sets the exchange volume of the reactor, as well as the batch reaction duration ...
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Wastewater Treatment Technologies – Sequencing Batch Reactor (SBR)
There are a number of wastewater treatment technologies available including physicochemical, biological and advanced oxidation processes. We’re going to discuss a number of the options available over the coming weeks starting with a brief overview of the Sequencing Batch Reactor (SBR) process. The conventional Sequencing Batch Reactor (SBR) process has a unique operation wherein the ...
By Coftec
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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 ...
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Bioremoval of colour from textile wastewater by sequencing batch reactor and biotechnological methods
In experimental studies, single growth white rot fungi Phanerochaete chrysosporium has been additionally used to obtain the decolourisation capacity of fungal biomass. It has been shown that average efficiency of classical activated sludge in SBR reaches 71% during 1600 mins for 436, 525 and 620 nm absorbance. It has been shown that average efficiency of advanced activated sludge in SBR reaches ...
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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-1. The pretreatment by internal electrolysis ...
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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 ...
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A two-sludge system for simultaneous biological C, N and P removal via the nitrite pathway
Nitrogen removal via the nitrite pathway results in significant savings in both aeration costs and COD requirements for denitrification when compared to the conventional biological nitrogen removal process. Implementation of the nitrite pathway for simultaneous C/N/P removal in a single sludge system has a major drawback: the aeration phase disfavours denitrifying phosphorus removal. A possible ...
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Occurrence of
Microthrix parvicella in sequencing batch reactorsSequencing batch reactors (SBRs) are known for high process stability and usually have a good sludge volume index (SVI). Nevertheless, in many SBRs in Germany for municipal wastewater treatment, scum and foam problems can occur, and SVI can be larger than 200 mL/g. The microscopic investigations of the activated sludge from plants with nitrogen and phosphorus removal have shown that Microthrix ...
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Investigation of full-scale step-fed SBR under low dissolved oxygen: performance and microbial community response
A decentralized full-scale sequencing batch reactor (SBR) system for treating wastewater was operated to assess their feasibility and the response of bacterial population dynamic and nutrient removal performance. The reactor was operated under low dissolved oxygen (DO) concentration (0.3–0.7 mgL−1) and an average applied organic load of 0.5 g COD L−1 d−1 (COD: chemical oxygen demand). Removal ...
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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 ...
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Environmental assessment of two small scale wastewater treatment systems: SBR vs CAS
European Water Directive 91/271/EEC introduced a series of measures aimed at protecting sensitive areas against the emission of nutrients originating from waste water treatment plants. There are, however, environmental costs associated with achieving the required level of water quality, such as greenhouse gas emissions resulting from energy consumption. The goal of this study is to assess ...
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Comparison of saline wastewater treatment performance of SBR with repeated starvation under aerobic and non-aerobic conditions
This study investigated the effects of repeated starvation and feeding on the performance of a sequencing batch reactor (SBR) used for treating saline wastewater. The effects of aerobic and non-aerobic conditions on the sludge during starvation were evaluated to recover the performance of the SBR in terms of floc size and pollutant removal after resuming wastewater feeding. The floc size, fractal ...
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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 ...
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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 ...
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New Fluidyne ISAM - Integrated Surge Anoxic Mix SBR Excels in Port Hood, Nova Scotia - Case Study
We are proud to announce that Fluidyne's SBR solution was the Atlantic Canada Wastewater Treatment Plant of the Year for: Client: Municipality of the County of Inverness Solution: Sequencing Batch Reactor (SBR) Background: The rural coastal community of Port Hood, N.S. with a population of around 1300 people, like many other small Nova Scotia communities has aging municipal infrastructure. In ...
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