受污染河湖的疏浚底泥快速脱水干化新工艺的应用  

Application of New Technological Process of Quick Dewatering and Drying for Dredged Sediment from Polluted Rivers and Lakes

作　　者：李川 张晴波 赵东华 陈喆 张晔 

机构地区：[1]中交上海航道勘察设计研究院有限公司,上海200120

出　　处：《净水技术》2015年第3期101-104,共4页Water Purification Technology

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07101-010)

摘　　要：基于受污染河湖的疏浚底泥特征和现有快速脱水干化技术的优缺点,在理论研究和现场试验中结合传统的化学辅助脱水法和真空预压法的特点,提出一种自由水渗透法的污染底泥快速干化新工艺。该工艺应用于太湖竺山湾疏浚底泥干化示范工程,疏浚干化90 d后,整体承载力达到40 k Pa,造价低于传统的地基处理技术,且不改变土的原有性质。According to the characteristics of dredged sediment from polluted rivers and lakes as well as the advantages and disadvantages of the existing quick dewatering and drying technology,a new technological process of quick dewatering and drying named free water infiltration method,combining with the characteristics of chemical dehydration method and vacuum preloading method,was invented after theoretical research and field test. This new technological process was applied in Taihu lake Zhushan bay and load-carrying capacity is 40 kPa after 90 days＇ dewatering and drying with lower cost and without changing property of sediment.

关 键 词：污染河湖 疏浚底泥 快速脱水干化 自由水渗透法 应用 承载力 

分 类 号：X524[环境科学与工程—环境工程]