木薯酒糟沼气发酵污泥生物干燥条件优化  

Biodrying Condition Optimization for Cassava Alcohol Methane Fermentation Sludge

作　　者：赵华[1] 陈磊[1] 王虹[1] 任晶[1] 

机构地区：[1]工业微生物教育部重点实验室,天津科技大学生物工程学院,天津300457

出　　处：《环境科学与技术》2011年第11期122-125,共4页Environmental Science & Technology

摘　　要：利用生物干燥方法,通过添加微生物菌剂,将木薯酒糟沼气发酵后污泥进行干燥实验。利用响应面法对影响污泥干燥工艺的条件进行优化,确定生物干燥过程中接种量、通风量、温度对物料含水率的影响。最后得到在接种量1.5%、通风量6.5 L/h、温度36℃时,固态发酵96 h物料含水率可降到30%以下。Biodrying experiment was done on cassava lees sludge after methane fermentation.The response surface methodology was used to optimize the process of sludge drying,for the determination of the effect of biological inoculation,air flow rate and temperature on moisture content of substrate.The optimization conditions were determined,with inoculation volume of 1.5%,air flow rate 6.5 L/h and temperature 36 ℃.After 96h fermentation,the moisture content of materials was decreased to 30% below.

关 键 词：干燥菌剂 生物干燥 条件优化 

分 类 号：X705[环境科学与工程—环境工程]