云南高原湖泊污染底泥环境疏浚工程设计要点问题探析

Analysis on Main Designing Problems of Environmental Dredging of Polluted Sediment in Plateau Lakes of Yunnan

主要阐述了云南5个湖泊底泥环境疏浚与其它疏浚方式的区别以及与环境疏浚相关的技术参数,并指出在湖泊底泥环境疏浚工程设计及施工过程中应着重考虑的技术要点及措施,包括疏挖及输送方式的选择、疏浚设备类型的选择、疏浚区域的确定、挖泥厚度确定及精度要求、底泥处置及防渗处理、余水处理及排放等方面。

The article principally shows the differences between environmental dredging and other kinds of dredging methods and the key technology and measure considered during designing and implementation. The efficiency of environmental dredging is also introduced including sediment cleanup, pollutant removal, water quality improvement and volume increase and so on. Environmental dredging of pollution sediment is not absolutely necessary measure for water quality improvement of lakes, therefore, decrease of external pollution sources and reform of ecological structure are the key approaches.