摘要
通过不同季节周中、周末对老城区河道主要入河排污口进行连续24h采样,分析了其水质、水量的变化特征。结果表明:冬季污水量小于春季和夏季,而污染负荷则远高于春、夏两季,冬季COD负荷对河道污染的贡献率>30%;冬、春季周末的污染负荷略低于周中,而夏季周末的污染负荷略高于周中。各个污染负荷随时间的变化规律基本类似,于中午11:00—14:00及夜间19:00—22:00会出现相应的负荷高峰。针对调研分析结果,对管网改造及截污措施提出了建议。
The 24-h sampling at main discharge outlets into the river in old urban districts was performed at weekends and midweeks in different seasons, and the discharged sewage quantity and quality were analyzed. The results indicate that the sewage quantity in winter is less than that in spring and summer, while the pollutant loads are much higher than that in spring and summer. The contribution of COD load in winter is more than 30%. In winter and spring, the pollutant loads at weekends are slightly lower than that at midweeks, while in summer, the situation is opposite. From 11：00 to 14：00 and 19：00 to 22：00, the peak pollutant loads appear. In addition, some suggestions on network reconstruction and sewage interception are made.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第16期78-82,共5页
China Water & Wastewater
基金
国家水体污染控制与治理科技重大专项(2008ZX07313-001)
关键词
水质水量变化
沿河排放
管网改造
截污措施
sewage quality and quantity change
discharge along river
network reconstruction
sewage interception measures
