文档介绍：Research on Nitrogen and Phosphorous Removal
and Membrane Fouling Characteristics of Two-stage
Sequencing Batch MBR
YUAN Xin-yan, SHEN Heng-gen SUN Lei, WANG Lin, LI Shi-feng
College of Environmental Science and Engineering College of Environmental Science and Engineering
Donghua University Ocean University of China
Shanghai, China Qingdao, China
Abstract—Aiming at resolving problems in biological nitrogen
and phosphorous removal process like conflict between nitrogen II. REACTOR SET-UP AND PARAMETERS
removal and phosphorous removal and total phosphorous in the
effluent due to unsatisfied solid-fluid separation, two-stage A. Reactor set-up
sequencing batch membrane bioreactor (TSBMBR) was TSBMBR system bined of TSBMBR1 and TSBMBR2 in
presented in treating municipal wastewater. Influence of two- series as shown in Figure 1.
stage sequencing batch operation mode on pollutants removal
efficiency was investigated. The results indicated that through the
control of operation conditions, phosphorous accumulating 10
organisms (PAOs) and nitrification bacteria can propagate
separately in each stage of reactor. Nitrogen and phosphorous 5
removal conflict could be resolved, and TP、TN、NH3-N in the
effluent could reach scenic environmental water criteria.
12 3
Comparing with one-stage membrane bioreactor, the 4
combination of sequenci