BAF-人工湿地耦合工艺处理农村生活污水中试研究  

Pilot-scale research on biological aerated filter(BAF)-constructed wetlands coupled process for the treatment of rural domestic sewage

作　　者：晁雷[1,2] 王健[1] 包振宇 刘一威 李亚峰[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [2]辽宁省环境科学研究院,辽宁沈阳110031

出　　处：《工业水处理》2017年第4期66-69,共4页Industrial Water Treatment

基　　金：国家科技重大专项课题(2013ZX07202-010);辽宁省科学技术计划项目(2014020163);沈阳建筑大学学科涵育项目(XKHY-36)

摘　　要：根据农村生活污水水质COD较低、水量较大、面广而分散的特点,依据现有的人工湿地工艺,提出一种BAF型人工湿地,以解决人工湿地工艺处理效果受DO局限的问题。通过控制曝气管的开关及2根进水管流量来探究4种曝气方式和分段进水比对去除效果的影响,结果表明,采用中间曝气方式和分段进水比为2∶1条件下,BAF型人工湿地对COD、氨氮、总氮的去除效果都比较理想,去除率分别为73.17%、87.22%、63.17%,出水可达到一级A标准。Since the water quality of rural domestic sewage is characterized by low COD,high water quantity,and widely distributed areas,it is proposed that BAF-constructed wetland process is to be used,based on the present constructed wetlands technology,so as to solve the problem that the treatment effect of constructed wetland process has been restricted by DO. By controlling the aeration conduit switch and the flow rate of two influent pipes,the influences of 4 kinds of aeration patterns and step-feed ratio on removing rates are investigated. The results show that when intermediate aeration patterns are used and the step-feed ratio is 2∶1,the removing effects of BAF-constructed wetlands on the removing rates of COD,ammonia nitrogen,and total nitrogen are ideal,i.e. the removing rates are73.17%,87.22%,and 63.17%,respectively. And the effluent can reach the first level of A standard.

关 键 词：农村污水 人工湿地 曝气 

分 类 号：X703[环境科学与工程—环境工程]