化工进展2018，Vol.37Issue(6)：2378-2385,8.DOI:10.16085/j.issn.1000-6613.2017-1754
市政污泥热力干化过程中黏滞特性研究进展
Progress in sticky characteristics of sewage sludge during thermal drying process
摘要
Abstract
Sticky phenomenon is one of the main problems encountered during dewatering and drying of sewage sludge. The operating efficiency of drying equipment will be greatly influenced by adhesion and cohesion of sewage sludge,which brings negative impact to the economy and security of the system. The formation mechanism of sticky phenomenon of sewage sludge was briefly introduced based on the illustration of adhesive and cohesive force,as well as the testing methods of sticky properties of sewage sludge under low moisture content,such as agitation method,plate method, adhesive-cohesive failure method,electrical resistivity method,build-up method and sliding plate viscosity method,etc. The merits and drawbacks of the different testing methods were also discussed. The influencing of extracellular polymer substances(EPS),temperature and moisture content on sticky properties of sewage sludge were reviewed,and mechanisms were also briefly discussed. The research progress in the viscosity reduction method of sewage sludge was also discussed,as well as the industrial application aspects of the different viscosity reduction methods. The future trends of the research on sticky properties of sewage sludge were represented.关键词
污泥/干化/黏滞/黏附/结团Key words
sludge/drying/sticky/adhesive/cohesive分类
资源环境引用本文复制引用
刘亚军,王爱春,邓文义..市政污泥热力干化过程中黏滞特性研究进展[J].化工进展,2018,37(6):2378-2385,8.基金项目
国家自然科学基金项目(51408111). （51408111）
