水资源与水工程学报2017，Vol.28Issue(6)：14-19,26,7.DOI:10.11705/j.issn.1672-643X.2017.06.03
滇池环湖截污干渠错峰技术模拟与分析
Simulation and analysis on sewage interception trunk canal staggering peak technology in Dianchi
摘要
Abstract
In order to maximize the Dianchi Lake Basin sewage interception effect, staggered peak storage technology of sewage interception trunk canal was discussed based on the prebuilt SWMM model of the drain-age pipe network along the east coast and the rainfall data during 1995-2016. Different control modes were performed according to the rainwater channel liquid level:when the water level was lower than 6. 76 meters, the typical pollutant concentration threshold control mode was performed;or else the liquid level - pollutant flux control mode as well as the typical pollutant threshold control were performed when the water level was higher than 6. 76 meters. SS and TN were used as typical pollutant control indexes for trunk canal closure, and their control concentration thresholds were 125 mg/L and 5mg/L, respectively. Trunk canal pollutant col-lection under SS/TN concentration - load flux storage scheme was simulated under the rainfall of 0. 5～1a recurrence period, the results showed that both storage schemes can effectively improve the pollutant collec-tion rate, increase the sewer outlet pollutant concentration, and reduce the runoff impact on high water flow and low concentration of the sewage plant. The trunk canal pollutant interception efficiency was higher with the increase of recurrence period. However, pollutant collection under TN storage scheme was better than SS, so TN was chosen as the optimal control index for typical pollutant in trunk canal interception.关键词
截污干渠/初期雨水/错峰调蓄/SS/TN浓度阈值/负荷通量/污染物控制/SWMM模型/滇池流域Key words
sewage interception trunk canal/initial rain water/staggering control/SS/TN concentration threshold/load flux/pollutant control/SWMM model/Dianchi Basin分类
建筑与水利引用本文复制引用
方艳娟,姚娟娟,张智,蔡松柏,浦鹏,胡欣逸..滇池环湖截污干渠错峰技术模拟与分析[J].水资源与水工程学报,2017,28(6):14-19,26,7.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07102001-003) （2012ZX07102001-003）
