Novel anaerobic membrane bioreactor (AnMBR) design for wastewater treatment at long HRT and high solid concentration

Yifru Waktole Berkessa; Binghua Yan; Tengfei Li; Ming Tan; Zonglian She; Veeriah Jegatheesan; Heqing Jiang; Yang Zhang

doi:10.1016/j.biortech.2017.11.025

Novel anaerobic membrane bioreactor (AnMBR) design for wastewater treatment at long HRT and high solid concentration

Bioresour Technol. 2018 Feb:250:281-289. doi: 10.1016/j.biortech.2017.11.025. Epub 2017 Nov 10.

Authors

Yifru Waktole Berkessa¹, Binghua Yan², Tengfei Li³, Ming Tan², Zonglian She⁴, Veeriah Jegatheesan⁵, Heqing Jiang⁶, Yang Zhang⁷

Affiliations

¹ Lab of Waste Valorization and Water Reuse Group, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China; State Key Laboratory of Petroleum Pollution Control, Beijing 102206, PR China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China.
² Lab of Waste Valorization and Water Reuse Group, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China.
³ Lab of Waste Valorization and Water Reuse Group, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China; College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, PR China.
⁴ College of Environmental Science and Engineering, Ocean University of China, 266100 Qingdao, PR China.
⁵ School of Engineering, RMIT University, Melbourne, VIC 3000, Australia.
⁶ Lab of Membrane Separation and Catalysis Group, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China.
⁷ Lab of Waste Valorization and Water Reuse Group, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao 266101, PR China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, PR China. Electronic address: zhangyang@qibebt.ac.cn.

PMID: 29174906
DOI: 10.1016/j.biortech.2017.11.025

Abstract

Performance of two novel designed anaerobic membrane bioreactor (AnMBRs) for wastewater treatment at long hydraulic retention time (HRT, 47 days) and high sludge concentration (22 g·L^-1) was investigated. Results showed steady chemical oxygen demand (COD) removal (>98%) and mean biogas generation of 0.29 LCH₄·g^-1COD. Average permeates flux of 58.70 L·m^-2·h^-1 and 54.00 L·m^-2·h^-1 were achieved for reactors A and B, respectively. On top of reactor configuration, long HRT caused biofilm reduction by heterotrophic bacteria Chloroflexi resulting in high membrane flux. Mean total membrane resistances (2.23 × 10⁹ m^-1) and fouling rates (4.00 × 10⁸ m^-1·day^-1) of both reactors were low suggesting better membrane fouling control ability of both AnMBRs. Effluent quality analysis showed the effluent soluble microbial products (SMP) were dominated by proteins compared to carbohydrates, and specific ultraviolet absorbance (SUVA) analysis revealed effluent from both reactors had low aromaticity with SUVA < 1 (L·mg^-1·m^-1) except for the first ten days.

Keywords: Anaerobic membrane bioreactor; Effluent quality; HRT; Membrane fouling; Mixed liquor suspended solid.

MeSH terms

Anaerobiosis
Bioreactors*
Membranes, Artificial
Sewage
Waste Disposal, Fluid*
Wastewater

Substances

Membranes, Artificial
Sewage
Waste Water