引排水对城区内河涌水环境的影响分析

Analysis of the Impact of Water Diversion and Drainage on the Water Environment of Urban Inner-rivers

本文以佛山市禅城区张槎街道为例,结合南北大涌以西片区主干内河涌的水质状况,分析区域引排水对水环境的影响。结果表明,研究区水环境状况较差,主要超标因子为氨氮和总磷;总体来看,区域引水量越大,水质越好,增加排水量可进一步改善水质。7次水质采样监测结果显示,第2次水质相对较好,此时区域的总引水量为58.86万m^(3),对应的总排水量为12.654万m^(3),排水量占引水量的比例为21.5%,可作为区域水利调度的参考。

Taking Zhangcha Street in Chancheng District,Foshan City as an example,this paper analyzes the impact of regional water diversion and drainage on the water environment,taking into account the water quality status of the main inner-rivers in the west area of the North-South Bay.The results show that the water environment in the study area is poor,with the main exceeding factors being ammonia nitrogen and total phosphorus;overall,the larger the regional water diversion volume,the better the water quality,and increasing the drainage volume can further improve the water quality.The results of seven water quality sampling monitoring shows that the water quality in the second round is relatively good,at this time,the total water diversion volume in the region is 588600 m^(3),corresponding to a total drainage volume of 126540 m^(3),and the proportion of drainage volume to the water diversion volume is 21.5%,which can be used as a reference for regional water conservancy scheduling.