城市生物质废物水热预处理技术工艺研究  

Hydrothermal Pretreatment Technology of Municipal Biomass Waste

作　　者：胡颂[1] 王伟[1] 侯华华[1] 

机构地区：[1]清华大学环境科学与工程系,北京100084

出　　处：《环境卫生工程》2009年第6期44-46,共3页Environmental Sanitation Engineering

基　　金：国家863计划项目(2008AA062401)

摘　　要：针对城市生物质废物易降解有机物含量高、含水率高的特点,开展水热预处理技术工艺研究,结果表明,水热温度175℃、水热时间60 min为最佳的工艺条件,此时VSS水解率达到57.89%,SCOD浓度增加到128.80 g/L,黏度降低为5 400 Pa.s,上清液的产甲烷量是原始物料的1.7倍,厌氧消化性能得到了提高。Aiming at high contents of easily degradable organic matters and water of municipal biomass waste, study on hydrothermal pretreatment technology was carried out. The results indicated that 175 ℃ and 60 minutes were the best condition. Under this condition, hydrolysis rate of VSS reached 57. 89%, SCOD concentration reached 128. 80 g/L, kinetic viscosity reduced to 5 400 Pa＇s, and methane production of supernatant liquid was 1. 7 times of that of original materials. Anaerobic digestion performance has been well elevated.

关 键 词：城市生物质废物 水热预处理技术 厌氧消化 

分 类 号：X799.3[环境科学与工程—环境工程]