摘要
珠三角地区河网水质改善是流域综合治理的重要一环,有必要对水质改善措施的达标性进行研究。以珠三角地区佛山市南海区北村水系为例,基于MIKE11一维水动力水质模型,以COD、NH_(3)-N、TP为特征指标,研究不同工程方案下河涌水动力及水质改善效果。结果表明:截污、清淤、引水等措施对研究河段的整体水质均有不同程度的提升,可达到水质改善的目的。随着截污、活水工程的实施,北村水系主要河涌典型断面处的水质基本可以达到Ⅴ类水质的要求,引水调水及CSO调蓄池实施后污染严重河涌观测断面污染物浓度下降超过70%,可为珠三角河网水质改善措施提供依据。
The water quality improvement in the river network area of the Pearl River Delta is an important part of the comprehensive management of the river basin,and it is necessary to study the compliance of water quality improvement measures.Taking the Beicun river system of Nanhai district,Foshan city in the Pearl River Delta as an example,this paper chooses COD,NH_(3)-N and TP as the characteristic indexes based on the MIKE11 one-dimensional hydrodynamic water quality model to study the hydrodynamic force of rivers and water quality improvement effect under different engineering schemes.The results show that measures such as pollution interception,silt removal,and water diversion can improve the overall water quality of the studied river reach in varying degrees,and thus the water quality improvement is achieved.As the projects of pollution interception and fresh water are implemented,the water quality in typical cross sections of main rivers in the Beicun river system can meet the requirement of classⅤ.After the implementation of water diversion and transfer,as well as CSO storage pool,the pollutant concentration in the observed cross section of seriously polluted rivers decreases by more than 70%.As a result,this paper can provide a basis for improving water quality in the river network area of the Pearl River Delta.
作者
李青峰
郭珊
张茹玉
闫晓满
张学林
LI Qingfeng;GUO Shan;ZHANG Ruyu;YAN Xiaoman;ZHANG Xuelin(Guangzhou PRHRI Engineering Survey&Design Co.,Ltd.,Guangzhou 510610,China;Pearl River Water Resources Research Institute,Pearl River Water Resources Commission,Guangzhou 510611,China)
出处
《人民珠江》
2023年第2期54-60,共7页
Pearl River
关键词
MIKE11
水环境模拟
水质改善
珠三角河网
佛山市
MIKE11
water environmental simulation
water quality improvement
river network area of Pearl River Delta
Foshan city
