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Description: The effectiveness of anaerobic contact to improve nutrient removal performance and effluent quality of aerobic granules was studied in sequencing batch reactors (SBR). Three identical anaerobic/aerobic SBRs were operated under two operation strategies over four months. During the first stage, plug-flow feeding was applied for a 90 min. anaerobic phase, while in the next stage, 15 min. of feeding followed by 75 min. of anaerobic contact was provided with circulating the liquid through settled biomass. Results indicated that, anaerobic contact increased anaerobic COD utilization from 17-24% to 45-53% with improving mass transfer and consequently, improved phosphorus removal from 63.3 to 92.7%. The anaerobic contact also improved the effluent quality from 87

Keywords: Wastewater treatment, Aerobic granular sludge, Anaerobic contact, Phosphorus removal, Solid retention time, Effluent quality
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Date: 2017-08-07
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Conference name: CSBE/SCGAB 2017 Annual Conference, Canad Inns Polo Park, Winnipeg, Manitoba, 6-10 August 2017.
Session name: Session 5B: Biological Wastewater Treatment

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Type: Text.Article
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Publication type: Technical conference
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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