摘要
环沟型改良A2/O工艺是集高效初沉发酵池、回流污泥反硝化池、厌氧池及双沟道氧化沟工艺于一体的新型污水处理工艺。对该工艺去除污染物的效果进行试验研究,结果表明,在生物系统水力停留时间不足8h的条件下,达到了较好的除磷脱氮效果,出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。研究结果同时表明,该工艺具有很好的节能降耗潜力。
Improved A2/O in annular ditch is a new wastewater treatment process including high efficient primary sedimentation ferment tank,return sludge denitrification tank,anaerobic tank,and dual-channel oxidation ditch.The experiment study on the pollutant removal effect of this process was carried out,and the results showed： if the water residence time of biological system was less than 8 h,the relative satisfying phosphorus removal effect was achieved,and the effluent water quality was stable and met the first class A standards of ＂Discharge standard of pollutants for municipal wastewater treatment plant（GB 18918—2002）＂.The research results also showed that this process had relatively high energy saving and consumption reducing potential.
出处
《给水排水》
CSCD
北大核心
2011年第12期46-49,共4页
Water & Wastewater Engineering
关键词
环沟型
A^2/O工艺
高效初沉发酵池
除磷脱氮
节能降耗
Annular Ditch
A2/O process
High efficient primary sedimentation ferment tank
Nitrogen and phosphorus removal
Energy saving and consumption reducing
