Dong Wen-yi, Wang Hong-jie, Li Wei-guang, Yin Weng-chao, Gan Guang-hua, Yang Yue
Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China.
Huan Jing Ke Xue. 2009 Aug 15;30(8):2326-31.
A bench-scale comparative study between gas-water alternative membrane bioreactor (AMBR) and traditional submerged membrane bioreactor (SMBR) treating synthetic municipal wastewater was conducted with respect to the effects of carbon and nitrogen removal and membrane fouling. The results showed that both the AMBR and the SMBR had very good removal in COD and NH4+ -N of more than 96%. In SMBR, carbon and nitrogen removal was enabled by biomass in bulk liquid, while in AMBR, it was supposed to be functioned mainly by the biofilm attached to the surface of hollow fiber membrane since little sludge was found in the bulk liquid. However, TN removal was 76.94% in AMBR and 52.41% in SMBR, showing a more effective denitrification in AMBR compared to SMBR. Also, AMBR was found to be more effective in membrane fouling alleviation than SMBR through long time investigation of trans-membrane pressure.
进行了一项实验室规模的对比研究，比较气水交替膜生物反应器（AMBR）和传统浸没式膜生物反应器（SMBR）处理合成城市污水时对碳氮去除及膜污染的影响。结果表明，AMBR和SMBR对COD和NH4+-N的去除效果都非常好，去除率均超过96%。在SMBR中，碳氮去除是由主体液体中的生物质实现的，而在AMBR中，由于在主体液体中发现的污泥很少，推测其主要通过附着在中空纤维膜表面的生物膜起作用。然而，AMBR的TN去除率为76.94%，SMBR的为52.41%，表明与SMBR相比，AMBR的反硝化效果更有效。此外，通过对跨膜压力的长期研究发现，AMBR在减轻膜污染方面比SMBR更有效。
