疏浚泥处理方法综述  

Review of Treatment Methods of Dredged Spoils

作　　者：施维成[1] 

机构地区：[1]常州工学院土木建筑工程学院,江苏常州213002

出　　处：《常州工学院学报》2010年第4期9-11,43,共4页Journal of Changzhou Institute of Technology

基　　金：江苏省高校自然科学研究资助项目(09KJD560003);河海大学岩土力学与堤坝工程教育部重点实验室开放基金项目(GH200904)

摘　　要：港口航道清淤及河流湖泊生态疏浚都会产生大量的疏浚泥,论文介绍了目前处理疏浚泥的各种方法,包括海洋倾倒处理法、排水处理法、固化处理法、加热处理法、真空电渗及动力挤密联合处理法,并分析了其特点。海洋倾倒处理法简单方便,但给海洋生态环境带来负面影响。排水处理法可以降低疏浚泥的含水量,但不能去除其中的污染物,会对环境造成二次污染。固化处理法在固化疏浚泥的同时减缓了污染物的溶出速率,可减小对周围环境的二次污染。加热处理法将疏浚泥脱水,转化成建筑材料,可以实现疏浚泥的再生资源化,但处理大规模疏浚泥的能力不足。真空电渗及动力挤密联合处理法可快速、高效地排出疏浚泥中的大量水分和污染物,且造价低廉,具有广阔的应用前景和较大的推广价值。A lot of dredged spoils would be produced from dredging of ports and channels and ecologic dredging of rivers and lakes.A variety of current methods of dealing with dredged spoils were described,including ocean dumping approach,drainage approach,solidification approach,heat treatment method and vacuum electro-osmosis and vibro-densification combined approach,and the characteristics of these methods were analyzed.The ocean dumping approach is simple and convenient,but would have a negative impact on the marine environment.The drainage approach could reduce the water content of dredged spoils,but could not remove the pollutants in the dredged spoils,and would cause the environment secondarily polluted.The solidification approach could solidify the dredged spoils,and at the same times could make the dissolution rate of pollutants slower,consequently can reduce the secondary pollution of the surrounding environment.The heat treatment method dehydrates the dredged spoils and converts them into building materials,which can recycle dredged spoils,but lack the ability to handle large-scale dredging spoils.The vacuum electro-osmosis and vibro-densification combined approach could quickly and efficiently discharge plenty of water and contaminants from dredged spoils and is inexpensive,which has broad application prospects and superior value of promotion.

关 键 词：疏浚泥 真空电渗 动力挤密 

分 类 号：X703[环境科学与工程—环境工程]