Nitrifying moving bed biofilm reactor (MBBR) biofilm and biomass response to long term exposure to 1 °C

Hoang, Valerie; Delatolla, Robert; Abujamel, Turki S.; Mottawea, Walid; Gadbois, Alain; Laflamme, Édith; Stintzi, Alain

doi:10.1016/j.watres.2013.11.018

Cited by 122 publications

(34 citation statements)

References 39 publications

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“…Figure 3a also indicates that at lower temperatures (\8°C), around 5 h were required for nitrogen oxidizing bacteria to stabilize. A period of 2 months was reported for MBBRs system operating at 1°C, as compared to a maximum of 1 month for laboratory systems operating at 4°C (Almomani et al 2014;Hoang et al 2014).…”

Section: Treatment Of Septic Tank Effluent In Batch Experimentsmentioning

confidence: 97%

“…Published results regarding the performance of MBBR have all been related to experiments carried out using synthetic wastewaters (Rodgers and Zhan 2004;Hoang et al 2014) with a carbon-to-nitrogen (C/N) ratio of nearly zero; however, results for wastewater with reasonable C/N ratios have rarely been reported. The C/N ratio is one of the most critical parameters for the removal of nitrogen from wastewaters on account of its direct relation to the performance of the bacteria involved in the process (Di Trapani et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Treatment of septic tank effluent using moving-bed biological reactor: kinetic and biofilm morphology

Almomani

Khraisheh

2016

Int. J. Environ. Sci. Technol.

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Septic tanks are very commonly used wastewater collection systems throughout the world, and especially in rural areas. In this study, the use of moving-bed biological reactors (MBBR) for the treatment of septic tank effluent (STE) was examined. The study was conducted in two phases. In Phase I, the performance of septic tanks from four projects working under different operational conditions and with different service lives was followed to determine the parameters that required further treatment. In Phase II, four specially designed continuous flow pilotplant MBBRs and one laboratory-scale batch reactor were tested for their efficiency in treating STE. Experiments were carried out at various temperatures (8-25°C) and with different hydraulic retention times (HRTs). MBBR effectively reduced STE's nutrients and chemical oxygen demand by 90 and 85 %, respectively, over 180 days of operation. The average ammonia removal rate at 25°C increased from 0.279 to 0.540 kg N/m 3 when the reactor HRT changed from 5.7 to 13.3 h. Under these conditions, the ammonia removal kinetics were successfully correlated with a theta model with an average h value of 1.054. The biofilm morphology showed a stable and global biomass coverage ([70 %) and a high percentage of live cells. A thinner biofilm was observed when the MBBR operated at high temperatures. The results of this study showed that MBBR is a promising technology for post-treatment of septic tank effluent.

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Section: Treatment Of Septic Tank Effluent In Batch Experimentsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Treatment of septic tank effluent using moving-bed biological reactor: kinetic and biofilm morphology

Almomani

Khraisheh

2016

Int. J. Environ. Sci. Technol.

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“…Several studies have produced estimates of biofilm growth and IFAS capabilities of removal toward certain contaminants in municipal and industrial wastewater (AEsøy et al, 1998;Regmi et al, 2011;Hoang et al, 2014), but there is still insufficient data for biofilm's ability to reduce certain amount of pollutant removal for RWTP including turbidity levels.…”

Section: Biological Process For River Quality Improvement Workmentioning

confidence: 99%

Field Testing And Performance Evaluation Of River Water Treatment Plants

Mohiyaden¹

2018

The European Proceedings of Social and Behavioural Sciences

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This paper describes the monitoring works of Integrated Fixed Activated System (IFAS) which are customized to suit its application in river water treatment plant (RWTP) under River of Life (ROL) project that have been monitored by Departments of Irrigation and Drainage (DID) at Klang river and its tributaries.There are seven RWTP selected for monitoring and testing since these RWTP are monitored by the Malaysian Department of Irrigation and Drainage for River of Life Project. Several types of biological carrier in six (6) different RWTPs will be tested for this study. Sampling schedule differ from each RWTP depend on its design and numbers of available chamber and its operation as well as weather condition. Water quality samples from Inlet and Outlet, MLVSS and TVS in the oxidation tank of the RWTP were collected as grab samples for once per month. This IFAS-RWTP can reduce turbidity to acceptable levels, and the effluent water can be achieved to NWQS Class II standard as initial target by the JPS. Further monitoring and analysis are needed to observe the long-term performance in low strength RWTP process in terms of biofilm formation and water quality for better understanding of the IFAS and MBBR processes

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“…There is much evidence in the literature that media-related biomass increases at low temperatures (Shrestha et al, 2009;Wett et al, 2010;Sticker et al, 2009;Bjornberg et al, 2009;Hoang et al, 2014;Strombeck et al, 2014). The Bjornberg (2009) paper provides a detailed summary of biomass fluctuations throughout the year at a plant in Minnesota.…”

Section: Continuous-flow Reactorsmentioning

confidence: 99%

Mass Transfer Characteristics of Floating Media in MBBR and IFAS Fixed-Film Systems

Melcer¹

2015

wio

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2014 U4R11ii The Water Environment Research Foundation, a not-for-profit organization, funds and manages water quality research for its subscribers through a diverse public-private partnership between municipal utilities, corporations, academia, industry, and the federal government. WERF subscribers include municipal and regional water and water resource recovery facilities, industrial corporations, environmental engineering firms, and others that share a commitment to cost-effective water quality solutions. WERF is dedicated to advancing science and technology addressing water quality issues as they impact water resources, the atmosphere, the lands, and quality of life. This report was prepared by the organization(s) named below as an account of work sponsored by the Water Environment Research Foundation (WERF). Neither WERF, members of WERF, the organization(s) named below, nor any person acting on their behalf: (a) makes any warranty, express or implied, with respect to the use of any information, apparatus, method, or process disclosed in this report or that such use may not infringe on privately owned rights; or (b) assumes any liabilities with respect to the use of, or for damages resulting from the use of, any information, apparatus, method, or process disclosed in this report. Brown and Caldwell, University of New MexicoThis document was reviewed by a panel of independent experts selected by WERF. Mention of trade names or commercial products or services does not constitute endorsement or recommendations for use. Similarly, omission of products or trade names indicates nothing concerning WERF's positions regarding product effectiveness or applicability. Mass Transfer Characteristics of Floating Media in MBBR and IFAS Fixed-Film Systems iii About WERFThe Water Environment Research Foundation, formed in 1989, is America's leading independent scientific research organization dedicated to wastewater and stormwater issues. Throughout the last 25 years, we have developed a portfolio of more than $130 million in water quality research.WERF is a nonprofit organization that operates with funding from subscribers and the federal government. Our subscribers include wastewater treatment facilities, stormwater utilities, and regulatory agencies. Equipment companies, engineers, and environmental consultants also lend their support and expertise as subscribers. WERF takes a progressive approach to research, stressing collaboration among teams of subscribers, environmental professionals, scientists, and staff. All research is peer reviewed by leading experts.For the most current updates on WERF research, sign up to receive Laterals, our bi-weekly electronic newsletter.Learn more about the benefits of becoming a WERF subscriber by visiting www.werf.org. ivThe authors would like to acknowledge the media donors for their financial support and advice during the conduct of this experiment. They would also like to thank the staff at the Albuquerque, New Mexico, Wastewater Reclamation Facility for providing inoculation source ...

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Nitrifying moving bed biofilm reactor (MBBR) biofilm and biomass response to long term exposure to 1 °C

Cited by 122 publications

References 39 publications

Treatment of septic tank effluent using moving-bed biological reactor: kinetic and biofilm morphology

Treatment of septic tank effluent using moving-bed biological reactor: kinetic and biofilm morphology

Field Testing And Performance Evaluation Of River Water Treatment Plants

Mass Transfer Characteristics of Floating Media in MBBR and IFAS Fixed-Film Systems

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