CAJ | 학술논문

以宿迁市中心城区非点源污染为对象，基于SWMM模型，根据降雨径流实测数据并结合相关经验参数率定模型参数，构建了基于SWMM模型的研究区非点源污染负荷计算模型，共设计了7种不同降雨情景，分析了不同降雨条件下研究区非点源污染固体悬浮物（TSS）、COD、TN、TP的入河污染物总量和入河过程线。在设计的降雨情景下：（1）在一定的降雨强度范围内，入河污染物总量随降雨强度增加而增加，高强度降雨较低强度降雨可对受纳水体造成更大的污染；（2）污染物浓度峰值出现在降雨45～50min内；（3）入河TSS、COD体现了明显的初期效应，而TN、TP没有明显的初期效应，这与氮磷的再次堆积有关。
이숙천시중심성구비점원오염위대상，기우SWMM모형，근거강우경류실측수거병결합상관경험삼수솔정모형삼수，구건료기우SWMM모형적연구구비점원오염부하계산모형，공설계료7충불동강우정경，분석료불동강우조건하연구구비점원오염고체현부물（TSS）、COD、TN、TP적입하오염물총량화입하과정선。재설계적강우정경하：（1）재일정적강우강도범위내，입하오염물총량수강우강도증가이증가，고강도강우교저강도강우가대수납수체조성경대적오염；（2）오염물농도봉치출현재강우45～50min내；（3）입하TSS、COD체현료명현적초기효응，이TN、TP몰유명현적초기효응，저여담린적재차퇴적유관。
The study was focused on the non-point source pollution loading in Suqian. Based on the SWMM,parameters from the literature and field experiments were integrated,and a non-point source pollu?tion calibration model was constructed .Seven different rainfall scenarios were designed to analyze the pollu?tion loads of total suspended solids(TSS). Under the designe rainfall conditions:(1)In a certain range of rainfall intensity,total non-point pollutants increased with the increase of the rainfall intensity,higher-inten?sity rainfall caused more serious pollution to receiving water bodies than the low-intensity rainfall did;(2) The emission of pollutants reached a peak after 45~50min late than the beginning of the rainfall;(3)TSS and COD emissioned into the river reflects obvious first flush effect,however,TP and TN didn’t reflect ob?vious first flush effect and this may relate with the second accumulation.