Characterization of rainfall-runoff pollution in Combined Sewer System rural township

摘要

Through monitoring rainfall at different scales in Da niu fang village in Beijing's suburbs, combined with analysis of chemical experiment to we studyed Characterizations of rainfall-runoff pollution in Combined Sewer System rural township. The results show that Erosion model is the existence in the initial runoff, COD, ammonia nitrogen concentration on average raw rainwater are 32.80mg/L and 3.778mg/L. Rainfall basically in line with national surface water quality standard. Educe the main pollutant is SS, and the concentration of COD, total nitrogen, total phosphorus and SS in the roof showed a good correlation. Raw rainwater and roof runoff could be taken as the main source of reuse.