摘要
随着城市化水平的提高,市政污泥的产出量逐年增加,市政污泥脱水是制约污泥处理的关键问题。本文针对现阶段国内外市政污泥脱水技术的发展,分析了市政污泥来源、性质;对比了常规脱水工艺的优缺点;重点综述了基于微生物技术的市政污泥脱水工艺的机理及效果;总结了微生物技术应用于市政污泥脱水中面临的问题与挑战;展望了市政污泥脱水技术今后的发展趋势。市政污泥微生物脱水技术的发展,为实现市政污泥减量化和资源化生态处理提供新的思路,为实现市政污泥处理节能减排提供重要的科学参考。
With the improvement of the level of urbanization,the output of municipal sludge is increasing year by year,and the dewatering of municipal sludge is a key issue restricting the treatment of sludge.In view of the current development of municipal sludge dewatering technology at home and abroad,this paper analyzed the source and properties of municipal sludge,compared the advantages and disadvantages of conventional dewatering processes,and focused on the mechanism and effects of municipal sludge dewatering processes based on microbial technology,and summarized the problems and challenges faced by the application of microbial technology in municipal sludge dewatering,and prospected the future development trend of municipal sludge dewatering technology.The development of municipal sludge microbial dehydration technology provides new ideas for the realization of municipal sludge reduction and resource ecological treatment,and provides an important scientific reference for the realization of municipal sludge treatment energy saving and emission reduction.
作者
唐健
张欢
曹晶
郑超然
孟天竹
陈立华
Tang Jian;Zhang Huan;Cao Jing;Zheng Chaoran;Meng Tianzhu;Chen Lihua(Nanjing Municipal Design and Research Institute,Nanjing 210008,China;National Engineering Research Center of Water Resources Efficient Utilization of and Engineering Safety,Nanjing 210098,China;College of Agriculture Engineering,Hohai University,Nanjing 210098,China)
出处
《中国资源综合利用》
2020年第8期106-114,共9页
China Resources Comprehensive Utilization
基金
江苏省重点研发项目(项目编号:BE2018736)
国家自然科学基金项目(项目编号:41701304)
南京建委科技计划项目(项目编号:2019257)
中央高校基本科研业务(项目编号:2018B49114)的阶段性研究成果之一。
关键词
市政污泥
脱水工艺
微生物技术
生物干化
municipal sludge
dehydration technology
microbial technology
biological drying
