基于水质目标的化工区初期雨水收集方式探讨  

Exploring initial rainwater collection methods in a chemical industrial park based on water quality objectives

作　　者：吴兆康 孙庆来 吉雨霁 戴紫铃 徐启新[1] 谢胜 杨凯[1] WU Zhaokang;SUN Qinglai;JI Yuji;DAI Ziling;XU Qixin;XIE Sheng;YANG Kai(School of Ecological and Environmental Sciences,East China Normal University,Shanghai 200241,China;Shanghai Municipal Engineering Design Institute(Group)Co.Ltd.,Shanghai 200241,China)

机构地区：[1]华东师范大学生态与环境科学学院,上海200241 [2]上海市政工程设计研究总院(集团)有限公司,上海200241

出　　处：《华东师范大学学报(自然科学版)》2025年第2期121-131,共11页Journal of East China Normal University(Natural Science)

基　　金：国家重点研发计划(2019YFC0408205);上海市科技创新行动计划(22dz1209102)。

摘　　要：目前,化工企业根据相关规范标准要求采用的初期雨水收集方式主要分为基于时间(收集前15~30 min雨量)和基于雨量(收集前20~30 mm雨量)两种.化工园区对企业“后期清净雨水”排放水质的在线监测和管控较为薄弱,对于不同初期雨水收集方式的污染控制效果研究相对较少.为探究化工园区采取不同初期雨水收集方式的污染控制效果,立足于排放负荷控制和水质达标的需求和目标,基于上海某化学工业园区雨排口在线监测数据,采用径流污染负荷累积分布曲线法,研究了主要水质指标对降雨的响应关系,从污染负荷削减角度探讨了在持续强降雨过程下,化工园区采用不同初期雨水收集管理方式的差异.结果表明,化工企业为了操作便捷一般采用基于时间的初期雨水收集处置方式,在持续强降雨过程中,其雨水污染控制效果比较局限.化工园区应根据降雨特征适时采用基于雨量的收集处置方式,有效削减化工园区雨水污染负荷和降低污染风险.Currently,industrial enterprises primarily utilize two initial rainwater collection methods based on time(first 15~30 min)and depth(first 20~30 mm)according to the relevant specifications and standards.However,online monitoring and control of rainwater discharge water quality in chemical industrial parks is relatively weak and there is limited research on the pollution control effects of different initial rainwater collection methods.This study utilized monitoring data from rainwater outlets in a Shanghai chemical industrial park to investigate the pollution risks associated with different initial rainwater collection methods and align them with the requirements for pollution emission load control and water quality compliance.The cumulative distribution curve of the runoff pollution load was used to examine the response of key water quality indicators to rainfall.This study discusses variations in different initial rainwater collection and management methods in chemical industrial parks from the perspective of pollution reduction.Chemical companies generally adopt time-based initial rainwater collection for operational convenience during continuous heavy rainfall,with its rainwater pollution control effect being relatively limited.Therefore,it is recommended that chemical industrial parks adopt depth-based collection methods tailored to rainfall characteristics to effectively reduce rainwater pollution loads and mitigate pollution risks.

关 键 词：初期雨水 雨水收集 化工园区 径流污染 雨水管理 

分 类 号：X323[环境科学与工程—环境工程]