title: [Research on pollution load of sediments in storm sewer in Beijing district].
abstract: Based on the investigation of sewer sediments in Xi Cheng district in Beijing, scour-release pollution load in one rainfall from sewer sediments was studied by monitoring the pollutants in the run-off of manhole's section. It was shown that the contribution of scour-release pollutants from sewer sediments to sewer outflow was obvious. The contribution rate of the sediments pollution load to runoff outflow in the 84 m pipeline in one rainfall (9 Jul., 2010) was as follows: TN 8.5%, TP 8.2%, COD 18.3%, SS 7.7%, respectively. And the pollutant contribution rate in the 295 m pipeline in another rainfall (4 Aug., 2010) was TN 23.12%, TP 60.01%, COD 33.78%, SS 31.89%. Therefore, it is important to control the pollution from sewer sediments for the improvement of water environment.
authors.affiliation: Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, Beijing University of Civil Engineering and Architecture, Beijing 100044, China. lihaiyan@bucea.edu.cn
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Li
authors.forename: Bo-Ping
authors.initials: BP
authors.lastname: Xu
authors.forename: Shang-Ling
authors.initials: SL
authors.lastname: Xu
authors.forename: Shuang
authors.initials: S
authors.lastname: Cui
mesh_terms: D002681:China; D002947:Cities; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000032:analysis*; D011891:Rain; D062065:Wastewater / Q000737:chemistry*; D014872:Water Movements
chemical_list: D062065:Wastewater