摘要
堆存生活垃圾中元素的溶出特性,是研究库区堆存生活垃圾综合治理技术及对水环境影响的基础。文中对三峡库区坝前135m下堆存生活垃圾进行水下动静态浸泡实验,并研究得到了不同水固比时重金属溶出分配系数以及各种重金属的溶出速率,结果表明,Cd的分配系数较小,水固比以及浸泡时间对分配系数及溶出速率影响较大,但在水固比达400时趋于平衡。库区堆存生活垃圾在水下浸泡时,在3周内,重金属元素溶出含量约为静态时理论最大含量75%;随着浸泡时间的增加,溶出速率降低较大,并且在较小的水固比时溶出速度趋于平衡。文中的研究结果可为进一步研究三峡库区堆存生活垃圾的处理技术打下基础。
The separating characteristic of element in cumulate MSW is a very important base to investigate the synthetically managing technology and estimate the water environment effects in Three Gorge Reservoir (TGR). The experiment to marinate the cumulate MSW under 135 meters for TGR in water is finished, and the same time, the Separating Distributing Coefficient (SDC) and the Separating Velocity Rate (SVR) of each heavy metal in water are presented, too. The experiment results show that the SDC of Cd is the smallest, the Ratio for Water and MSW (RWM) and marinating time play an important role in SDC and SVR, the SDC and SVR change smaller while the RWM get to 400, the separating content of heavy metal can reach 0.75 during three weeks, SVR decreases more with marinate time's increasing, and SVR gets an limit value with smaller RWM. The results can be a base for deeply studying the managing technology and the cumulate MSW under 135 meters for TGR.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第10期101-104,共4页
Journal of Chongqing University
基金
国务院三峡办项目资助(SC[2000-01])
