Optimization of a Completely Mixed Anaerobic Biofilm Reactor (CMABR), Based on Brewery Wastewater Treatment
1
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
2
School of Hydraulic and ElectricPower, Heilongjiang University, 74 Xuefu Road, Nangang District, Harbin 150090, China
*
Author to whom correspondence should be addressed.
Academic Editor: Naresh Singhal
Water 2021, 13(5), 606; https://doi.org/10.3390/w13050606
Received: 17 October 2020
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Revised: 22 November 2020
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Accepted: 30 November 2020
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Published: 26 February 2021
(This article belongs to the Section Wastewater Treatment and Reuse)
In this study, brewery wastewater was used as the treatment in exploring the optimal conditions and maximum processing efficiency of the completely mixed anaerobic biofilm reactor (CMABR) under the conditions of hydraulic retention time (HRT) (18 h, 24 h, and 30 h) with a rotational speed (70 rpm, 100 rpm, and 130 rpm) and influent total alkalinity (TA) (20 mmol/L, 25 mmol/L, and 30 mmol/L), which was measured by the response surface methodology (RSM). The results indicated that the maximum chemical oxygen demand (COD) removal ratio was achieved under the following conditions: HRT of 21.42 h, rotational speed of 101.34 rpm, and influent TA of 25.22 mmol/L. Analysis by scanning electron microscope (SEM) showed that the microorganisms were successfully immobilized on the polyurethane fillers before the reactor began operation. High-throughput sequencing indicated that Methanothrix and Methanospirillum were the dominant contributors for COD removal in the CAMBR under these optimum conditions.
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Keywords:
anaerobic; biological membrane; processing efficiency; brewery wastewater; response surface methodology
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MDPI and ACS Style
Zhong, D.; Zhu, K.; Ma, W.; Li, J.; Li, K.; Dai, C. Optimization of a Completely Mixed Anaerobic Biofilm Reactor (CMABR), Based on Brewery Wastewater Treatment. Water 2021, 13, 606. https://doi.org/10.3390/w13050606
AMA Style
Zhong D, Zhu K, Ma W, Li J, Li K, Dai C. Optimization of a Completely Mixed Anaerobic Biofilm Reactor (CMABR), Based on Brewery Wastewater Treatment. Water. 2021; 13(5):606. https://doi.org/10.3390/w13050606
Chicago/Turabian StyleZhong, Dan, Kai Zhu, Wencheng Ma, Jinxin Li, Kefei Li, and Changlei Dai. 2021. "Optimization of a Completely Mixed Anaerobic Biofilm Reactor (CMABR), Based on Brewery Wastewater Treatment" Water 13, no. 5: 606. https://doi.org/10.3390/w13050606
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