四川环境2024，Vol.43Issue(4)：33-40,8.DOI:10.14034/j.cnki.schj.2024.04.005
河道淤泥疏浚和底泥污染评价研究
Study on Dredging and Evaluation of River Sediment
摘要
Abstract
In order to select a more effective,environmental friendly and economical sediment dredging method and sludge disposal schemes,this study used the parallel section method and the potential ecological risk index method to investigate and analyze the sediment nutrient,organic matter and heavy metal pollution characteristics and pollution degree of rivers in Sanya,China,and according to the degree of pollution to determine the necessity,scope,depth and quantity of dredging.This paper drew the following conclusions:(1)The sediments of monitoring rivers in Sanya were mainly polluted by organic matter and total phosphorus,which had potential impacts on eutrophication of river water;and(2)the dredged sludge was rich in nutrients such as organic matter,nitrogen and phosphorus,and was a high-quality soil conditioner.The content of heavy metals in the sediment of the rivers was in line with the Class I limit of Green Planting Soil(CJ/T340-2016).The dredged sediment can be used as soil amendment or soil replacement for landscaping.In this paper,the whole dredging process research for the work of the other similar river has a certain reference value and significance.关键词
河道清淤/营养盐/重金属/淤泥处理处置Key words
River dredging/nutrients/heavy metals/sludge disposal and treatment分类
资源环境引用本文复制引用
孙淑雲,陈晓芳,刘广兵..河道淤泥疏浚和底泥污染评价研究[J].四川环境,2024,43(4):33-40,8.基金项目
江苏省省属公益类科研院所自主科研经费资助项目(GYYS2022103,GYYS2023106). （GYYS2022103,GYYS2023106）
