外源污染负荷对人工曝气修复河道的影响研究  

Influence of Pollution Load on Repairing River Course by Artificial Aeration

作　　者：张同祺[1] 李勇[1] 李培[1] 薛张辉[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215011

出　　处：《环境科技》2012年第1期13-17,共5页Environmental Science and Technology

基　　金："十一五"国家水重大专项课题(2008ZX07313-002-05)

摘　　要：通过多次现场监测实验,总结发现某河道曝气复氧效果不佳、水体除污效果较差、流域截污率偏低等问题原因。通过实验探索人工曝气对污染水体的除污效果,联系实际工程,对实际河道修复给出优化建议。计算该河道所能承受的最大外源污染负荷,控制排污后每日可排入该河道污染物最大总量分别为m(COD)为220.57 kg,m(NH4+-N)为14.58 kg,m(TP)为3.45 kg,截污后通过人工曝气措施可以达到短期治理目标。Through the spot monitoring experiments, it is found that the effect of aeration reaeration is not good, the water body defaecating effect is bad and the basin truncation dirt rate is low for some river course. Through tests to explore the effect of the artificial aeration on the defecating function, and based on the actual project, the optimized suggestion to repairing of the actual river course is given. The biggest extraneous source pollution load of the fiver course is calculated, after the truncation dirt, maximum pollutant total quantity is COD of 220.57 kg/d, NH4＋-N of 14.58 kg/d, and TP of 3.45 kg/ d, respectively. It is suggested that the short-term govelaament goal could be achieved through the artificial aeration measure after truncation.

关 键 词：河流污染 人工曝气 污染负荷 优化建议 

分 类 号：X5[环境科学与工程—环境工程]