Development of a high-rate submerged anaerobic membrane bioreactor

被引:4
作者
Mahmoud, I. [1 ]
Gao, W. J. [1 ]
Liao, B. Q. [1 ]
Cumin, J. [2 ]
Dagnew, M. [2 ]
Hong, Y. [2 ]
机构
[1] Lakehead Univ, Dept Chem Engn, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada
[2] GE Water & Proc Technol, Oakville, ON, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Submerged anaerobic membrane bioreactor; membrane fouling; up-flow anaerobic sludge blanket; high-rate industrial wastewater treatment; WASTE-WATER TREATMENT; ORGANIC LOADING RATE; WHEY TREATMENT; UASB REACTORS; CHEESE WHEY; DIGESTION; PERFORMANCE; WASTEWATERS; POTENTIALS; CONDENSATE;
D O I
10.1080/09593330.2017.1309076
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Typically, anaerobic membrane bioreactors are operated at an organic loading rate (OLR) less than 10kgchemical oxygen demand (COD)/m(3)d. This paper discusses the development and performance of a high-rate submerged anaerobic membrane bioreactor (SAnMBR) for a high-strength synthetic industrial wastewater treatment. An OLR as high as 41kgCOD/m(3)d was achieved with excellent COD removal efficiency (>99%). The membrane was operated at constant fluxes (9.4-9.9 +/- 0.5L/m(2)h) and the change in trans-membrane pressure (TMP) was monitored to characterize the membrane performance. The results showed a low TMP (<5kPa) under steady-state operation with only biogas sparging and relaxation as control strategy for over 300 days, implying no significant fouling was developed. Inorganic fouling was the dominant fouling mechanism occurred at the end of the study. The results suggest that the newly developed SAnMBR configuration can treat high-strength wastewater at lower capital expenditure while still providing superior effluent quality for water reuse or system closure.
引用
收藏
页码:640 / 650
页数:11
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