污泥低温水热处理过程中影响因素的研究  

Research on the influencing factors of improving sludge dewatering performance during low temperature hydrothermal treatment

作　　者：叶泽鹏 宋宪强[2] 周锡武[1] 

机构地区：[1]佛山科学技术学院土木工程系,广东佛山528000 [2]佛山科学技术学院空间信息与资源环境系,广东佛山528000

出　　处：《佛山科学技术学院学报（自然科学版）》2018年第1期15-19,共5页Journal of Foshan University(Natural Science Edition)

基　　金：国家星火计划资助项目(2013GA780055);佛山市院市合作项目资助(2014HK100211);佛山科学技术学院优秀青年教师培育资助项目(2014yu15)

摘　　要：对市政污泥进行低温水热处理,针对不同反应温度130、160、190、220、250℃和不同反应停留时间15 min、30 min、1 h、1.5 h、2 h水热处理后污泥的脱水性能进行探究,通过测定污泥比阻、泥饼含水率和污泥体积指数来表征污泥的脱水性能,并确定了水热反应的最佳工艺参数。结果表明,反应停留时间与反应温度相比较,反应温度对水热污泥的脱水性能有着更大的影响,随着反应温度的上升,污泥脱水性能呈现先变差后逐渐变好的趋势。The research was conducted by analyzing the sludge produced at 130℃, 160℃, 190℃, 220℃ and 250℃ for 15min, 30min, 1h, 1.5h and 2h by hydrothermal to investigate the effects of hydrothermal reaction temperature and duration on dewatering performance. The specific resistance to filtration(SRF), the sludge volume index and the moisture content of sludge cake were measured to examine the dewatering performance of sludge, and the optimum technological parameters was determined by the result. The research showed that the reaction temperatures had a larger effect on the dewatering performance of sludge than the duration. The dewatering performance was becoming worse first and then becoming better with the increase of the reaction temperature.

关 键 词：污泥 低温水热处理 脱水 影响因素 

分 类 号：X703[环境科学与工程—环境工程]