南京内秦淮河中段底泥的污染与再利用

Pollution and Reuse of Sediments in the Middle of the Qinhuai River in Nanjing

河道底泥污染是河道治理的重点和难点,本文以南京内秦淮河中段疏浚工程为例,阐述了底泥污染物的种类和影响,分析了不同河段底泥的沉积与分布,综述了内秦淮河中段疏浚及底泥处理的工程概况。该底泥处置方案通过化学转化、脱水转化、热解转化三个不同的处理阶段,将底泥污染物进行了减量化、无害化、资源化处置,实现了河道底泥的再利用功能,促进了河道污染治理的可持续性发展。

the pollution of river sediment is the key and difficult point in the river, in Nanjing in the middle part of the Qinhuai River dredging project as an example, describes the types and effects of pollutants in sediments, analyzed the deposition and distribution of different river sediment, sediment dredging and disposal of the Qinhuai River engineering are reviewed in this paper. The sediment disposal scheme by chemical conversion dehydration, transformation, pyrolysis of three different treatment stages, the sediment contamination of reduction, harmless, resource disposal, realize the function of using river sediment, promote the sustainable development of river pollution control.