为了结合社会主义新农村建设的生活污水处理,使污水能够在厌氧消化后充分利用,设计了一种气动UASB反应器,以城市生活污水为基质对其进行气动实验研究。设计依据为:气动力使污泥悬浮,增加选择压,有利于传质且不像水动力循环那样降低反应器内浓度。实验条件:室温为15~21℃,进水温度为11~19℃,进水pH为7.5~8.5。实验启动期历时51 d,反应器内产生颗粒污泥,出水COD去除率达到60%以上,启动成功。
Process Biochemistry 37 (2002) 915– 920 Air sparging of a submerged MBR for municipal wastewater treatment In-Soung Chang, Simon J. Judd * School of Water Sciences, Cran?eld Uni 6ersity , Bedfordshire , MK 43 0AL , UK Accepted 8 October 2001 Abstract The performance of a submerged tubular membrane bioreactor (MBR) adopting two coarse bubble aeration (sparging) modes is reported. In the ?rst mode,