城市污泥水热脱水处理的工业应用与研究进展

doi:10.16085/j.issn.1000-6613.2017-0359

化工进展 ›› 2017, Vol. 36 ›› Issue (11): 4224-4231.DOI: 10.16085/j.issn.1000-6613.2017-0359

城市污泥水热脱水处理的工业应用与研究进展

庄修政^1,2,3,4, 阴秀丽^1,2,3, 黄艳琴^1,2,3, 吴创之^1,2,3

1. 中国科学院广州能源研究所, 广东广州 510650;
2. 中国科学院可再生能源重点实验室, 广东广州 510650;
3. 广东省新能源和可再生能源研究开发与应用重点实验室, 广东广州 510650;
4. 中国科学院大学, 北京 100049

收稿日期:2017-03-07 修回日期:2017-03-23 出版日期:2017-11-05 发布日期:2017-11-05
通讯作者: 阴秀丽,研究员,博士生导师。
作者简介:庄修政(1992-),男,硕士研究生,主要研究方向为生物质燃料的制备与转化。
基金资助:
国家自然科学基金（51661145022，51676195）及广东省自然科学基金重大基础研究培育项目（2017B030308002）。

Research on hydrothermal treatment of sewage sludge and its industrial applications

ZHUANG Xiuzheng^1,2,3,4, YIN Xiuli^1,2,3, HUANG Yanqin^1,2,3, WU Chuangzhi^1,2,3

1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China;
2. CAS Key Laboratory of Renewable Energy, Guangzhou 510650, Guangdong, China;
3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510650, Guangdong, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2017-03-07 Revised:2017-03-23 Online:2017-11-05 Published:2017-11-05

摘要/Abstract

摘要： 城市污泥是人类生活活动的副产品，对其脱水处理是污泥处置的关键。其中，水热脱水技术由于其能有效提高污泥脱水效率与低能耗等优势，成为污泥减量化与资源化处理的研究热点。文章首先介绍了城市污泥的特点及其处理现状，然后总结了近年来国内外关于污泥水热脱水工艺的发展历程与工业应用情况，并进一步对比分析了污泥水热脱水与其他脱水技术之间的能耗优势。此外，重点综述了污泥水热脱水的影响因素与机理，包括温度、时间、pH等处理条件以及水热过程中污泥水分形态与胞外聚合物（EPS）对污泥脱水性能的影响，并分析了目前机理研究上存在的矛盾与原因。最后对污泥水热脱水的发展前景作出展望，指出通过优化EPS分层提取从而深入分析污泥中各组分在水热过程中的迁移与结构变化是研究污泥水热脱水机理的重要途径。

关键词: 城市污泥, 废物处理, 水热脱水, 工业应用, 聚合物, 脱水机理

Abstract: Sewage sludge is the by-product of human activities and its dewatering treatment is essential for sludge disposal. Among these dewatering technologies,hydrothermal dewatering has been the research focus of sludge reduction and utilization because of its advantages of improving dewatering and low-energy consumption. This paper introduced the characteristics of sewage sludge and its disposal status,then comprehensively summarized the development process of sludge hydrothermal dewatering and its industrial application. Besides,the advantage of energy consumption for hydrothermal dewatering was compared with other dewatering technologies. After that,the latest studies relate to the effects of hydrothermal conditions,moisture distribution and extracellular polymers substance(EPS)on the dewaterability of sludge were analyzed in detail. Finally,the future developing perspectives of sludge hydrothermal dewatering treatment were also put forward,and studying the transformation of sludge components and structure via modified EPS extraction was considered as important ways to understand the mechanism of hydrothermal dewatering.

Key words: sewage sludge, waste treatment, hydrothermal dewatering, industrial application, polymers, dewatering mechanism

中图分类号:

庄修政, 阴秀丽, 黄艳琴, 吴创之. 城市污泥水热脱水处理的工业应用与研究进展[J]. 化工进展, 2017, 36(11): 4224-4231.

ZHUANG Xiuzheng, YIN Xiuli, HUANG Yanqin, WU Chuangzhi. Research on hydrothermal treatment of sewage sludge and its industrial applications[J]. Chemical Industry and Engineering Progress, 2017, 36(11): 4224-4231.

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城市污泥水热脱水处理的工业应用与研究进展

Research on hydrothermal treatment of sewage sludge and its industrial applications

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