污水厂污泥湿式空气氧化的研究进展  

Research progresses in wet air oxidation of sewage sludge

作　　者：李德彬 周平 吴毅晖 林阳 张洋洋 李欢 LI Debin;ZHOU Ping;WU Yihui;LIN Yang;ZHANG Yangyang;LI Huan(Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China;Kunming Dianchi Water Treatment Co.Ltd.,Kunming 650228,China)

机构地区：[1]清华大学深圳国际研究生院,广东深圳518055 [2]昆明滇池水务股份有限公司,云南昆明650228

出　　处：《化工环保》2022年第1期1-9,共9页Environmental Protection of Chemical Industry

基　　金：深圳市可持续发展科技专项(KCXFZ202002011008-44824)。

摘　　要：湿式空气氧化是一种具有较大发展潜力的污水厂污泥处理技术。该技术在高温高压条件下利用自由基反应氧化乃至矿化污泥中的有机质,处理后的污泥脱水性能好且泥饼趋于无机化。本文总结了该技术的原理、主要工艺和最新研究进展,并归纳了该领域面临的现实问题。指出,完善工艺流程、开发新型催化剂、实现产物综合利用是未来污泥湿式空气氧化发展的主要方向。Wet air oxidation (WAO) is a promising technology for sewage sludge treatment.In WAO,organic matter in sludge is oxidized and even mineralized by the free-radical reaction at high temperature and pressure.The treated sludge has good dewatering performance and the dewatered sludge cake tends to be inorganic.In this paper,the principle,main processes and new progress of WAO are reviewed,and the practical problems in this field are summarized.It is pointed out that improving the processes,developing new catalysts,and comprehensive utilization of products are the main directions of sludge WAO.

关 键 词：污水厂污泥 湿式空气氧化 工艺 催化剂 

分 类 号：X799.3[环境科学与工程—环境工程]