A/O作为前处理工艺处理生活污水研究  

Study of Domestic Wastewater Treatment Using A/O Process as Pretreatment

作　　者：李晓东 张巍[2] 晁雷 代秀兰 郎咸明 

机构地区：[1]辽宁省环境科学研究院,辽宁沈阳110031 [2]辽宁北方环境保护有限公司,辽宁沈阳110031

出　　处：《安徽农业科学》2011年第13期8012-8013,8027,共3页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划项目(2009BADC2B01-04-01);国家水体污染控制与治理科技重大专项(2008ZX07208-005)

摘　　要：[目的]研究A/O工艺对污染物的净化效果。[方法]以A/O作为人工湿地处理的前处理工艺,研究了水力停留时间、混合液回流比对A/O去污效果的影响。[结果]在温度15℃左右、A/O工艺水力停留时间3.4 h、混合液回流比1.0时,COD去除率达60%。[结论]出水浓度满足城镇污水处理厂污染物排放二级标准(GB18918-2002)和人工湿地后续处理要求。[Objective] The aim was to study the purification effect of A/O process on pollutants.[Method] Using A/O process as pretreatment of constructed wetland,the influence of the hydraulic retention time（HRT） and internal return rate on contamination removal effects were studied.[Result] The results showed that the COD removal efficiency at 15 ℃ could reach 60% when the HRT and internal return rate were 3.4 h and 1.0.[Conclusion] The effluent concentration of COD met the second standard of wastewater treatment plant effluence（GB18918-2002）,so it reached the demand of post treatment using constructed wetland.

关 键 词：A/O工艺 水力停留时间 混合液回流 

分 类 号：X703[环境科学与工程—环境工程]