New technology of wastewater treatment using combined design of low-temperture archae and functional membrane

研究了一种将厌氧消化与膜分离相结合的浸没式厌氧膜生物反应器（SAMBR）。采用实验室规模的SAMBR处理两种合成废水，在室温下连续运行，考察水力停留时间（HRT）对处理性能的影响。HRT为12 h时，可溶性合成废水和含悬浮物的合成废水出水的化学需氧量和生化需氧量分别为34、11、19、8 mg/L，输入COD转化为甲烷的比例分别为72、65%。通过对古细菌群落的克隆分析，在可溶性合成废水反应器中，利用乙酸酯的甲烷菌占70%。合成废水反应器中悬浮固体（SS）、甲烷菌（Methanosaeta）和利用氢的甲烷菌（Methanoregula）的检出率相同。

A submerged anaerobic membrane bioreactor (SAMBR) combining anaerobic digestion and membrane separation was developed. A lab-scale SAMBR treating two kinds of synthetic wastewater were continuously operated at a room temperature to investigate the effect of hydraulic retention time (HRT) on the treatment performance. At HRT of 12 hours, the chemical oxygen demand (COD) and biochemical oxygen demand of effluents in the soluble synthetic wastewater and suspended solids contained synthetic sewage were 34, 11 mg/L, 19, 8 mg/L, and 72, 65% of input COD was converted to methane respectively. Based on the cloning analysis of Archaeal community, the acetate-utilizing Methanosaeta accounted for 70% in the soluble synthetic wastewater reactor. In contrast, about suspended solids (SS) contained synthetic wastewater reactor, Methanosaeta and hydrogen-utilizing Methanoregula were detected at the same rate.