Study on the hydrothermal drying technology of sewage sludge

作     者：Kunio Yoshikawa 

作者机构：Tokyo Institute of TechnologyG5-84259 Nagatsuta-choMidori-kuYokohama 226-8502Japan 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2010年第53卷第1期

页      面：160-163页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

主　　题：sewage sludge hydrothermal drying mechanical dehydration 

摘      要：Drying of sewage sludge is an effective way for treatment and utilization of sewage sludge,where reduction of energy consumption is one of the major technical *** we experimentally investigated the possibility of the hydrothermal *** have found that treatment of sewage sludge by saturated steam with the temperature of 190°C and pressure of 20 bar can dramatically improve the dehydration performance of the slurry like *** the water content can be reduced down to about 55% by a mechanical *** natural drying 24 h it can be reduced down to about 20%.The final product is almost odorless and can easily be used for the refuse derived fuel(RDF).The sewage sludge product may be used as land-fill,or burned in a boiler or incinerator.