生态过滤坝修复污染水体的研究  

Study on Remediation of Polluted Waters by Ecological Filter Dam

作　　者：梁灿钦 Liang Canqin(Dongguan Ecological Environmental Protection Research Institute Co.,Ltd.,Dongguan 523009,China)

机构地区：[1]东莞市生态环保研究院有限公司,广东东莞523009

出　　处：《广东化工》2022年第22期155-158,210,共5页Guangdong Chemical Industry

摘　　要：为解决周边污水流入引起湖库水体变差问题,初步研究了一种用于水体修复的生态过滤坝,分析其对污染水体的修复效果及相关机理。本文选定东莞市松山湖松木山库区某湖汊涵洞口流入污水作为应用对象。从2021年12月15日至2022年4月15日间,共进行了5次采样(每月一次),进水COD_(Cr),氨氮,TP,TN,DO(单位均为mg·L^(-1))浓度范围分别为14.00~57.00、0.59~2.51、0.12~0.53、2.14~2.91、1.42~4.82;通过在其径流中设置四道生态过滤坝,涵洞口流出的污水经过生态过滤坝的吸附、截留、过滤及其生物作用,水体COD_(Cr),氨氮,TP,TN的污染物浓度逐步降低,DO逐渐提升,最终出水COD_(Cr),氨氮,TP,TN,DO(单位均为mg·L^(-1))浓度范围分别为7.00~16.66、0.11~1.54、0.04~0.22、0.49~1.34、4.12~8.48;污染物削减程度依次为40.74%~80.70%、38.65%~90.91%、58.49%~86.67%、53.95%~78.13%;DO提升1.48~4.08倍。工程实施结果表明,经生态过滤坝净化后水质明显改善。以上研究结果可为污染水体的生态修复提供可资借鉴的案例和参考。In order to solve the problem of deterioration of lake and reservoir water caused by the inflow of surrounding sewage,an ecological filter dam for water restoration is preliminarily studied,and its restoration effect and related mechanism on Polluted Waters are analyzed.This study selected the inflow sewage from the entrance of a Lake Branch culvert in Songmushan reservoir area of Songshan Lake in Dongguan as the application object.From December 15,2021 to April 15,2022,a total of five samples(once a month)were taken.The concentration ranges of influent COD_(Cr),Ammonia nitrogen,TP,TN,DO(all in mg·L^(-1))were 14.00~57.00,0.59~2.51,0.12~0.53,2.14~2.91,1.42~4.82 respectively;By setting up four ecological filter dams in its runoff,the sewage from the culvert portal passes through the adsorption,interception,filtration and biological action of the ecological filter dam,and the pollutant concentration of COD_(Cr),Ammonia nitrogen,TP,TN in the waters gradually decreases,and DO gradually increases.Finally,the concentration range of COD_(Cr),Ammonia nitrogen,TP,TN,DO(all in mg·L^(-1))in the effluent is 7.00~16.66,0.11~1.54,0.04~0.22,0.49~1.34,4.12~8.48 respectively;The reduction degree of pollutants is 40.74%~80.70%,38.65%~90.91%,58.49%~86.67%,53.95%~78.13%;DO increases by 1.48~4.08 times.The project implementation results show that the water quality is significantly improved after purification by the ecological filter dam.The above research results can provide useful cases and references for the ecological restoration of Polluted Waters.

关 键 词：生态过滤坝 生态修复 吸附 生物作用 

分 类 号：TQ[化学工程]