环境工程学报2012，Vol.6Issue(8)：2853-2858,6.
吸附分离辅助电渗透脱水过程中污泥的特性
Characteristics of sludge during electroosmotic dewatering assisted by absorptive separation
摘要
Abstract
Electroosmosis technique is very effective for deeper dewatering of sludge from municipal wastewater plant, but higher energy consumption has hampered its widespread distribution so far. Aiming to the problem that higher energy consumption caused by the difficulty in the discharge of water accumulated near the cathode, it was proposed that electroosmotie dewatering is assisted by adsorptive separation, and the distribution of water content, pH and ionic electromigration were investigated in this process. The results showed that absorp- tive separation could enhance drastically the electroosmotic dewatering efficiency of sludge. During electroosmotic dewatering assisted by absorptive separation, water content and pH of sludge near the anode decreased sharply, and water content reduced slightly but pH increased rapidly for sludge near the cathode, while those of middle layers kept at the initial value. Moreover, elecroosmotic dewatering is effective for the removal of target ionic in sludge, however, it may result in the removal of non-target ions.关键词
污泥/电渗透脱水/吸附分离/离子迁移Key words
sludge/electroosmotic dewatering/adsorptive separation/ionic migration分类
资源环境引用本文复制引用
于晓艳,支苏丽,张书廷,徐晖..吸附分离辅助电渗透脱水过程中污泥的特性[J].环境工程学报,2012,6(8):2853-2858,6.基金项目
天津市自然科学基金资助项目 （）
