摘要
城市河道底泥长期富集氮、磷、重金属及有机污染物,易出现水质恶化、生态功能退化等水质问题。聚焦城市河道底泥原位稳定技术施工,开展城市河道中原位生态治理工程施工技术的应用研究。结合药剂配比算法、搅拌参数优化模型,构建药剂精准投加、底泥搅拌混合及底泥原位强化稳定的施工体系。实践结果表明,原位生态治理工程施工技术应用后,底泥总磷(total phosphorus,TP)、总氮(total nitrogen,TN)、化学需氧量(chemical oxygen demand,COD)浸出浓度去除率分别达42.9%、38.5%、35.1%,有效降低了底泥污染物活性,强化了河道水质与生态功能。
The long-term accumulation of nitrogen,phosphorus,heavy metals and organic pollutants in urban river deposits readily causes water quality degradation and ecosystem functional decline.Focusing on the urban river deposit in-situ stabilization technology construction,this paper studies the application of in-situ ecological management engineering construction technology in urban rivers.Combined with the chemical dosing ratic algorithm and the mixing parameter optimization model,a construction system with precise chemical dosing,deposit mixing,and deposit in-situ enhanced stabilization is established.The practical results show that the removal rates of total phosphorus(TP),total nitrogen(TN)and chemical oxygen demand(COD)leaching concentrations in deposit reach 42.9%,38.5%and 35.1%respectively after the application of in-situ ecological management engineering construction technology,effectively reducing the activity of deposit pollutants and strengthening the water quality and ecological functions of the rivers.
作者
闫世庆
张克阳
YAN Shiqing;ZHANG Keyang(North China University of Water Resources and Electric Power,Zhengzhou 450001,Henan,China;Sinohydro Bureau 11 Co.,Ltd.,Zhengzhou 450001,Henan,China)
出处
《工程技术研究》
2025年第24期101-103,共3页
Engineering and Technological Research
关键词
城市河道
底泥原位稳定技术
生态治理施工
urban river
in-situ deposit stabilization technology
ecological management construction
