挡水板高度对倾斜土槽污染物去除效果的影响  

Effect of Different Baffle Board Heights on Contaminant Removal Rate of Slanted-Soil-Chamber

作　　者：李方敏[1] 于广超[1] 李双江[1] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《环境科学与管理》2011年第8期82-84,94,共4页Environmental Science and Management

基　　金：湖北省自然科学基金(2008CDB377);教育部留学回国人员科研启动基金(教外司留[2010]1174号文件)资助

摘　　要：采用干湿交替方法,用5层倾斜土槽装置填充蜂窝煤渣和砂壤土等附着材料,探讨3种不同挡水板高度(90 mm、60 mm和30 mm)处理对模拟生活污水污染指标去除率的影响。结果表明:3种处理对污水中BOD5、COD、TP的去除率均在87%～95%以上、TN的去除率在69%～80%之间,对COD、TP平均去除率的影响不显著,但对BOD5和TN有显著影响,其平均去除率的顺序为:去除率90 mm≈去除率60 mm>去除率30 mm。本试验条件下采用60 mm为最适合水板高度,以满足装置一定污水流量的处理负荷。Through alternation of wetting and drying method, the effect of 3 kinds of different baffle board heights （ 90mm, 60mm and 30mm） on removal rates of contaminant indexes of simulative domestic wastewater are studied by using five layers Slant- ed - Soil - Chamber devices with honeycomb cinder and sandy loam soil and so on as adsorbing materials. The results indicate that the removal rates of BOD5, COD and TP are above 87% - 95%, of TN is between 69% and 80% of the wastewater in the 3 kinds of treatments. The differences of average removal rates（ARR） of COD, TP are not remarkable, but that of BODs, TN are remarkable. The order of their ARR is as follow ： at 90mm ≈ at 60mm 〉 at 30mm. Therefore, 60mm is the optimal baffle board height under this experiment condition and meet a certain discharge wastewater treatment load.

关 键 词：倾斜土槽 污染物 去除率 水质指标 

分 类 号：X703.3[环境科学与工程—环境工程]