淤泥脱水固化技术在环保疏浚中的应用

Application of Sludge Dehydration and Solidification Technology in Environmental Protection Dredging Business

环保疏浚是一种与生态修复结合的环境保护技术,通过清除河湖水体中的污染底泥,去除水体污染内源,减少底泥污染物向水体释放。化学与机械脱水相结合的方法是一种常用的淤泥脱水技术,采用该技术处理深圳前海湾清淤工程(二期)产生的沾污疏浚淤泥,将淤泥压榨成含水率低于40%且符合国家土壤环境质量标准的泥饼,便于运输及进行填土处置,达到了环境保护要求且实现了资源化利用的目标,为城市河湖开展大规模环保疏浚工程积累经验。

Environmental dredging is a kind of environmental protection technology which can combine with ecological restoration and eliminate the pollution of the river water in the river and the lake by removing the endogenous of the polluted water,reduce the release of the pollutants from the sediment to the water.Using the chemical and mechanical dewatering of dredged sludge to processing the mud generated from Shenzhen Qianhai Dredging Project(PhaseⅡ),squeeze the mud into the mud cake with water content less than 40%and meet the national standard of soil environmental quality and convenient transportation,and backfill disposal,achieve environmental protection requirements and realize resource utilization the target,which has accumulated valuable experience for future urban rivers and lakes developing large-scale environmental dredging engineering.