巢湖水用于城市景观河道生态补水工程
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摘要
城市景观河道水量短缺、水质变差的问题日益严重,为恢复河道景观水体功能,为河道补充清洁的水源尤为重要。以巢湖水为水源,经适当处理后作为合肥市滨湖新区景观河道塘西河的生态补水。介绍了工艺方案和主要处理单元设计参数,总结了工程一年的运行效果,分析了工程对塘西河的补水成效。实践证明,所选工艺方案合理可靠,出水总磷、氨氮、CODMn等指标稳定在《地表水环境质量标准》(GB 3838—2002)的Ⅲ类标准以上,藻类去除率达到99%;补水后塘西河上游水质明显改善,完全消除劣Ⅴ类水质。以巢湖水作为入湖河流补水水源,既能消除河道劣Ⅴ类入湖水质,又减轻了巢湖的污染。
As water shortage and water quality deterioration of urban landscape rivers are becoming increasingly serious,supplying clean water to them is particularly important for restoring the functions of landscape water bodies.Chao Lake water with suitable treatment was supplied to Tangxi River which was the core landscape river of Lakeshore New District of Hefei.The process scheme and design parameters of main treatment units were introduced,the operating effect of the project was summarized,and the changes of Tangxi River after a period of clean water supplement were analyzed.The practice proved that the process scheme adopted was reasonable and reliable,concentrations of TP,NH3-N and CODMn in the effluent were lower than grade Ⅲ criteria specified in the Environmental Quality Standards for Surface Water(GB 3838-2002),and the removal rate of algae was about 99%.The water quality of the upper reaches of Tangxi River was obviously improved to far better than grade Ⅴafter implementing ecological water supplement.Improving water quality for the river inflowing to Chao Lake and reducing pollution for Chao Lake could be both achieved by selecting Chao Lake as water supplement source.
As water shortage and water quality deterioration of urban landscape rivers are becoming increasingly serious,supplying clean water to them is particularly important for restoring the functions of landscape water bodies.Chao Lake water with suitable treatment was supplied to Tangxi River which was the core landscape river of Lakeshore New District of Hefei.The process scheme and design parameters of main treatment units were introduced,the operating effect of the project was summarized,and the changes of Tangxi River after a period of clean water supplement were analyzed.The practice proved that the process scheme adopted was reasonable and reliable,concentrations of TP,NH3-N and CODMn in the effluent were lower than grade Ⅲ criteria specified in the Environmental Quality Standards for Surface Water(GB 3838-2002),and the removal rate of algae was about 99%.The water quality of the upper reaches of Tangxi River was obviously improved to far better than grade Ⅴafter implementing ecological water supplement.Improving water quality for the river inflowing to Chao Lake and reducing pollution for Chao Lake could be both achieved by selecting Chao Lake as water supplement source.
引文
[1]王天星.巢湖支流塘西河合肥城区段治理规划设计[J].江淮水利科技,2008,(2):14-15.
[2]葛军.合肥市塘西河综合整治中景观生态需水量计算[J].中国市政工程,2010,6(3):32-34.
[3]杨永东,管运涛,陈俊,等.再生水补充景观水体的富营养化研究[J].环境工程,2012,30(S2):135-139.
[4]周律,邢丽贞,陈俊,等.再生水回用于景观水体的水质要求探讨[J].给水排水,2007,33(4):38-42.
[5]吴蕾,陈云峰.改性硅藻土用于巢湖水脱磷研究[J].环境工程学报,2011,5(4):777-782.
[6]郑西强,陈云峰.高效除磷硅藻土用于城市景观水体的治理[J].中国给水排水,2012,28(5):32-35.
[2]葛军.合肥市塘西河综合整治中景观生态需水量计算[J].中国市政工程,2010,6(3):32-34.
[3]杨永东,管运涛,陈俊,等.再生水补充景观水体的富营养化研究[J].环境工程,2012,30(S2):135-139.
[4]周律,邢丽贞,陈俊,等.再生水回用于景观水体的水质要求探讨[J].给水排水,2007,33(4):38-42.
[5]吴蕾,陈云峰.改性硅藻土用于巢湖水脱磷研究[J].环境工程学报,2011,5(4):777-782.
[6]郑西强,陈云峰.高效除磷硅藻土用于城市景观水体的治理[J].中国给水排水,2012,28(5):32-35.
目录
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