作　　者： ; ; ;

机构地区： 南京水利科学研究院

出　　处： 《水电能源科学》 2013年第3期37-39,192,共4页

摘　　要： 随着开发的不断深入及工业废水和生活污水的大幅排放,大铲湾变为严重污染的河口湾,为改善该海域水体污染状况,研究了水动力改善工程措施。通过水质物理模型,将无污染源排放条件下抽水、有污染源排放条件下注水两种工程方案分别与无工程措施进行对比,研究了大铲湾的水体交换能力,分析了其水质动力、水体污染浓度变化。结果表明,不采取工程措施时,水体自净难度很大;采取抽、注水措施后虽有一定改善,但无法彻底改善水环境,在持续排放污染物时湾内污水很难得到稀释,对流入河涌的污水进行处理才是改善大铲湾水质的前提条件。 In recent years, with a significant increase in industrial wastewater and domestic sewage, Dachan Bay is becoming a seriously polluted estuarine bay. It is necessary to research hydrodynamic improvement engineering measures. Based on the physical model of water quality, the water-exchange ability was discussed by comparing project ＂no pollution while drawing water＂ and project ＂pollution with water iniection＂ to proiect ＂no engineering measures＂ respectively. And the changes of water quality and pollutant concentration were also analyzed. The results show that the self-purification ca- pacity of water bodies is poor; additional pumping stations can help but the effects were not satisfied; it is hard to achieve dilution under the continuous sewage input. So a good sewage treatment for inflows is the key to the improvement of wa- ter quality in Dachan Bay.

关 键 词： 大铲湾 水交换 物理模型试验 稀释倍数

领　　域： [水利工程]