摘要
以四平市为例,结合SWMM模型评估了现状合流制排水系统截流能力、分析了现状合流制排水系统最大截流能力,并分别从雨污分流改造、海绵城市建设、初期雨水截流等角度定量评估了城市排水系统污染物的削减情况。结果表明:最大化释放截流干管效能,可以有效提升现状合流制排水系统截流能力。在雨污分流改造的基础上,开展源头低影响开发建设,可以有效削减城市径流面源污染,2018年入河污染物COD和氨氮分别下降了39.7%和33.2%。在此基础上,将原合流制截流干管作为分流制初期雨水截流干管,可以进一步削减城市面源污染,2018年入河污染物COD和氨氮进一步下降了25.8%和15.1%。
The intercepting capacity of combined system is evaluated and the maximum intercepting capacity is analyzed based on SWMM in Siping city.The reduction of pollutants is quantitatively evaluated from the perspectives of rain and sewage diversion,sponge city construction and initial rainwater interception.The results show that intercepting capacity of combined system is effectively improved by maximizing intercepting pipeline capacity.With LID and rain and sewage diversion,pollutants of COD and ammonia nitrogen discharged into rivers decreases by 39.7%and 33.2%respectively in 2018.In addition,by using intercepting pipeline of combined system as intercepting pipeline of initial rainwater,pollutants of COD and ammonia nitrogen discharged into rivers further decreases by 25.8%and 15.1%respectively.
作者
杨新德
戴忱
曹万春
YANG Xinde;DAI Chen;CAO Wanchun(CAUPD Beijing Planning and Design Consultants Company(Jiangsu Company),Nanjing 210000,China)
出处
《给水排水》
CSCD
北大核心
2021年第S01期196-200,共5页
Water & Wastewater Engineering
关键词
合流制排水系统
截流能力
溢流污染
入河污染物
SWMM
Combined system
Intercepting capacity
Overflow pollutants
Pollutants discharged into rivers
SWMM
作者简介
通信作者:杨新德,男,1990年出生,江苏南京人,工程师。主要研究方向为市政给排水、海绵城市方面的规划设计等。通信处:210000南京市秦淮区应天大街388号晨光1865科技创意产业园E13栋,E-mail:775299908@qq.com
