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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。
The problem of shortage of water quality and deterioration of water quality of urban landscape rivers is becoming more and more serious. It is particularly important to restore the water body function of river landscape and to add clean water to the river. Chaohu Lake water as the source, after appropriate treatment as Hefei Binhu New Area Landscape River Channel ecological recharge. The technological scheme and the design parameters of the main processing unit were introduced. The operation effect of the project was summarized and the effect of water supply to the Tangxi River was analyzed. Practice has proved that the selected process scheme is reasonable and reliable, effluent phosphorus, ammonia nitrogen, CODMn and other indicators of stability in the “Surface Water Environmental Quality Standards” (GB 3838-2002) Class III standards above, algae removal rate of 99%; The water quality of the upper reaches of the West River has been significantly improved, completely eliminating inferior Grade V water quality. Taking Chaohu Lake water as the water supply source for entering the lake can not only eliminate the water quality of the river under the worse than Grade V but also reduce the pollution of Chaohu Lake.