辐射技术在城市污泥处理中的应用  

An Application of Radiation Technology to the Treatment of Urban Sewage Sludge

作　　者：吴宇琦[1] 谢水波[1,2] 

机构地区：[1]南华大学污染控制与资源化技术湖南省重点实验室,衡阳421001 [2]南华大学铀矿冶生物技术国防重点学科实验室,衡阳421001

出　　处：《上海环境科学》2012年第5期208-212,共5页Shanghai Environmental Sciences

基　　金：国家自然科学基金项目(编号:11175081);湖南省科技计划重点项目(编号:2011SK2015);湖南省高校创新平台基金项目(编号:09K076)资助

摘　　要：结合国内外城市污泥处理现状，分析当前污泥处理过程中存在的主要问题。分别论述利用辐射技术处理城市污泥的2种方法：γ射线辐射法和高能电子束辐射法。对辐射技术的影响因素进行了归纳，主要包括污泥本身性质、剂量与辐照条件、基质环境。探讨辐射技术处理城市污泥的作用机理及效果，包括辐射杀灭微生物、改善污泥理化性质、提高污泥的稳定性等。最后总结污泥辐射处理技术面临的问题并对其发展前景进行展望。Problems encountered in the urban sludge treatment were analysed by combining the recent status of the sludge treatment in China and abroad. Gamma-radiation and electron beam radiation, two potential radiation technologies for the treatment of domestic sewage sludge, as well as some affecting factors including sludge properties, dose and radiation conditions, matrix environment, and etc. were expounded. Mechanisms and effects of the radiation technologies were discussed referring to inactivating microorganism, improving sludge physicochemical property and stability, and etc. Finally, faced problems and future development orientation of the radiation technologies for sludge treatment have been summed up.

关 键 词：污泥处理 辐射技术 γ射线辐射 电子束辐射 

分 类 号：X703[环境科学与工程—环境工程]