首页> 外文期刊>Fresenius environmental bulletin >STUDY ON MEASURES TO IMPROVE WATER QUALITY IN URBAN LAKES: CASING IN LAKE NANHU IN WUHAN
【24h】

STUDY ON MEASURES TO IMPROVE WATER QUALITY IN URBAN LAKES: CASING IN LAKE NANHU IN WUHAN

机译:改善城市湖泊水质的措施研究:武汉南湖湖泊的套管

获取原文
获取外文期刊封面目录资料

摘要

Water pollution is an important factor that plagues urban development and affects human settlements. This study takes Lake Nanhu in Wuhan, China as an example to discuss the water quality improvement of typical urban park lakes. Based on the monitoring results of the water quality in the lake and the quantitative analysis of the pollutant sources in the basin, the engineering measures under various scenarios are proposed as well as the corresponding pollutant reduction. The results show that the total nitrogen (TN) environment capacity of the lake is 315.2 t/a and the total phosphorus (TP) environment capacity is 21.01 t/a, which are calculated by Dillon model. Under the circumstance of the tail water from sewage treatment plant transferring from Lake Nanhu to the Yangtze River, 60% of TN from sediment release and domestic sewage interception are controlled, 67.3% from surface runoff pollution are reduced, the TN emission can be controlled below the water environment capacity and its concentration can reach 1.5mg/L. When the tail water from sewage treatment plant transferring from the lake to river, 75% of TP from domestic sewage and sediment release are controlled, and the reduction rate of TP from surface runoff pollution is 87%, the TP emission can be controlled below the water environment capacity and its concentration can reach 0.1 mg/L. After then, the environment and ecology of the lake can be improved. The feasibility plan of water quality improvement in this lake obtained in this paper can provide experience and case reference for the treatment of the same urban park-type lakes.
机译:水污染是困扰城市发展并影响人类住区的重要因素。本研究以中国武汉的南湖为例,讨论典型城市公园湖泊水质的改善。根据湖泊水质监测结果和流域污染物源定量分析,提出了各种情景下的工程措施以及相应的污染物减排措施。结果表明,根据狄龙模型计算,该湖的总氮(TN)环境容量为315.2 t / a,总磷(TP)环境容量为21.01 t / a。在污水处理厂尾水由南湖向长江转移的情况下,可控制泥沙释放和生活污水截留占总氮的60%,减少地表径流污染占67.3%,总氮排放可控制在以下水平水环境容量及其浓度可达到1.5mg / L。当污水处理厂的尾水从湖流向河流时,控制了生活污水中TP的75%和沉积物的释放,地表径流污染TP的减少率为87%,TP排放可控制在水环境容量及其浓度可达到0.1 mg / L。之后,可以改善湖泊的环境和生态。本文获得的改善该湖水质的可行性方案可为处理同一城市公园型湖泊提供经验和案例参考。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号