长治市主城区降雨径流污染规律及适宜弃流量模拟研究

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关键词：降雨径流污染；SWMM模型；污染物浓度；弃流量；长治市中图分类号： TV121+ .1 ;X52 文献标志码：A doi：10.3969/j.issn.1000-1379.2026.02.020用格式：同玉，李雨哲，王添，等.长治市主城区降雨径流污染规律及适宜弃流量模拟研究[J].人民黄河，2026，48（2）：129-135

Simulation Study on Rainfall Runoff Pollution Law and Suitable Abandoned Flow in Main Urban Area of Changzhi City

TONG Yu1 ，LI Yuzhe’，WANG Tian'，HOU Jingming¹，LUAN Guangxue'， SUN Xueliang²， DUAN Changhui³ ， GAO Yang' （1.StateKeyLaboratoryofWaterEngineeringEcologyandEnvironmentinAridArea，Xi'anUniversityofTechnology，Xi'an70048， China；2.China Planning Institute （Beijing）Planning and Design Co.，Beijing 1OO044，China; 3.Changzhi City Urban River Affairs Center，Changzhi O46O99，China）

Abstract：InordertoexplorethelawofrunoffptioninChangziCityandputforardapropriatesuggestionsforabandonedflothe northareaofShiziRiveriChangzhiCitywastakenastheresearchobjectBasedontheSWMmodel，thevariationofpolutantoncetrationinthestudyeauderviousrinfallonditionsofetuperods，5rinpeakcofcentand5infallduratioswassulatedad analyzed.TesulssoattereaesigicantdiereesintangsofSndCODcocetratiosindientoutets，lete diferences ofTandTNconcentrations arenot obvious.Thepeak valueofrunoff polltion concentration usuallyoccurs within 20min after runoff generation，and the attenuation mainly occurs within 15～20 min after the rainfall peak value. Underlying surface types significantly affectthepoliolevelineudyrea，utthcangeofifallpakpositiodifallduratioasiittofalt bleconcentrationofplutants，ndtepolltionlevelofgreespaceunoffissignifcantllowertanthatofhertypsofunderlingsur face.It is suggested that the cumulative rainfall of 15～35 mm should be used as the initial abandoned flow in Changzhi City，and the TSS reduction rate can reach more than 60% after the discharge.

Key words： rainfall runoff pollution； SWMM model；polutant concentration;； abandoned flow； Changzhi City

0 引言

随着我国点源污染得到有效控制，非点源污染成为影响受纳水体环境的主要因素[1-3]。（剩余9921字）