摘要
该文以广州市猎德涌为研究对象,沿补水水流方向设置4个监测点位对水质指标时间和沿程变化进行分析。结果表明,使用再生水对河涌进行生态补水1个月后,水质指标区域逐渐稳定,水环境风险基本可控;基于改进TOPSIS水质评价模型对不同监测点位水质情况进行综合分析发现,再生水经过湖泊调蓄和输水距离变长水质恶化风险增大。该研究可为以广州市为代表的南方丰水地区城市使用再生水进行河湖生态补水的水环境风险初步预判提供借鉴。
This paper takes Liede River in Guangzhou as the research object, a experiment was conducted to explore the water qualities of the artificial lake and surge by monitoring 4 sampling points along the water flow direction. The results show that after 1 month of ecological water replenishment of the river with reclaimed water, the water quality index area is gradually stable, and the water environment risk is basically controllable. Based on the improved TOPSIS water quality evaluation model, a comprehensive analysis of the water quality at different monitoring points found that the risk of water quality deterioration increases when the reclaimed water is stored in lakes and the distance of water delivery becomes longer.This study can provide a reference for the preliminary prediction of the water environment risk of using reclaimed water for ecological water replenishment of rivers and lakes in southern China.
作者
张威
肖耿锋
洪昌红
ZHANG Wei;XIAO Gengfeng;HONG Changhong(Guangzhou River Monitoring Center,Guangzhou 510600,China;Guangdong Research Institute of Water Resource and Hydropower,Guangzhou 510635,China)
出处
《广东水利水电》
2023年第1期66-71,共6页
Guangdong Water Resources and Hydropower
关键词
再生水补水
猎德涌
水环境风险
改进TOPSIS模型
reclaimed water replenishment
Liede river
water environment risk
improved TOPSIS method
