摘要
设计一种新型污水修复技术——多结构岸坡型湿地水质净化系统,以其中核心单元岸坡型湿地为研究对象,分别进行不同进水浓度条件下基质配置优选与不同水力停留时间条件下水质净化效果试验研究,探究岸坡型湿地最优基质配置及水质净化效果。试验结果表明:岸坡型湿地填充25%轮胎颗粒+50%沸石+25%无烟煤组合的基质配置对氮有较好的净化效果,填充25%沸石+50%陶粒+25%无烟煤组合的基质配置对磷有较好的净化效果;岸坡型湿地对TN、NH 3-N、TP平均去除率分别为34.0%、43.7%和56.2%,春季净化效果好于冬季,最佳水力停留时间选取2~4 d。该技术适用于入河流面源污染负荷削减及河流微污染水体的循环净化。本试验研究将对防治河流水质污染有一定的参考意义。
A new type of sewage remediation technology,multi structure bank slope wetland water purification system,was designed.Taking the core unit of the bank slope wetland as the research object,the optimal matrix configuration and water purification effect were studied under different influent concentration conditions and different hydraulic retention time conditions respectively,to explore the optimal matrix configuration and water purification effect of the bank slope wetland.The test results show that the substrate configuration of 25%tire particle+50%zeolite+25%anthracite has a better purification effect on the nitrogen in the sewage,and the substrate configuration of 25%zeolite+50%ceramsite+25%anthracite has a better purification effect on the phosphorus in the sewage.the average removal rates of TN,NH 3-N and TP were 34.0%,43.7%and 56.2%respectively.The purification effect was better in spring than in winter,and the optimal hydraulic retention time was 2~4 days.The technology is applicable to the reduction of non-point source pollution load and the circulation purification of micro polluted water body.This experimental study will have some reference significance for the prevention and control of river water pollution.
作者
杨群
王丹阳
赵进勇
韩会玲
彭文启
崔晓宇
张晶
YANG Qun;WANG Dan-yang;ZHAO Jin-yong;HAN Hui-ling;PENG Wen-qi;CUI Xiao-yu;ZHANG Jing(China Institute of Water Resources and Hydropower Research,Beijing 100038,China;Beijing Guanting Reservoir Management Office,Huailai 075441,China;Baoding University,Baoding 071000,China)
出处
《环境生态学》
2020年第2期59-65,共7页
Environmental Ecology
基金
国家水体污染控制与治理科技重大专项(2018ZX07105-002)
中国水科院创新领军人才项目(WE0145B532017)
水利部公益性行业科研专项(201501030)。
关键词
岸坡型湿地
基质配置
水质净化效果
水力停留时间
bank slope type wetland
matrix allocation
water purification effect
hydraulic retention time
