摘要
以滇池草海污染底泥疏挖及处置工程为例,分析了湖库底泥疏挖项目环境影响评价因素识别与评价重点。重点探讨了施工期对水域水质以及周围空气和噪声污染等的环境影响评价;同时就底泥堆放对地下水与土壤环境影响、堆放恶臭对环境影响以及疏挖工程的环境效益与运营期对周围生态环境影响进行了全面的分析和评价。针对该类工程在疏挖、余水处理和污染底泥堆存过程中的二次污染问题,提出了切实可行的二次污染防治对策。
By taking polluted sediment dredging and disposal project of Caohai of Lake Dianchi as an example, assessment factors and focus are identified and analyzed. The environmental impact assessment of engineering on water quality, surrounding landscape, and assessment of smell and noise are discussed in construction periods. Besides, environmental assessment impact points of sediment stockpiling on groundwater, soil and surrounding odor are presented. Based on environmental impact assessment of dredging on surrounding ecological environment in operating period, the points of environmental benefits of dredging project are analyzed. Aiming at the secondary pollution problems produced during dredging, residual water treatment and sediment stockpiling, some practical countermeasures for secondary pollution prevention are pointed out.
出处
《环境监控与预警》
2009年第1期42-46,共5页
Environmental Monitoring and Forewarning
关键词
污染底泥
疏浚工程
环境影响
评价
polluted sediment
dredging project
environmental impact
evaluation
