高负荷条件下pH调控对厌氧发酵产酸的影响  

Effects of pH Regulation on Acid Production by Anaerobic Fermentation under High Load

作　　者：韩丹[1,2] 郑明月[2] 王凯军[2] 

机构地区：[1]北京市市政工程设计研究总院有限公司,北京100082 [2]清华大学环境学院环境模拟与污染控制国家重点联合实验室,北京100084

出　　处：《环境卫生工程》2017年第4期58-62,共5页Environmental Sanitation Engineering

基　　金：国家高技术研究发展计划(863计划)项目(2008AA062401)

摘　　要：通过对果蔬垃圾的连续流厌氧发酵实验,考察了控制温度为35℃,控制pH(4.0、5.0、5.5、6.0),产酸相发酵产物组分的变化规律;考察了控制pH高负荷条件下不同有机负荷对酸化类型的影响。结果表明:负荷逐渐提高,酸化类型不变,酸化产物浓度基本不变;高负荷下控制pH=4能够形成稳定的乙醇化产物,但总体酸化率较低。In this study,the changes of acid-phase fermentation at the control of temperature （35℃）and pH （4.0,5.0,5.5,6.0）, and effects of different organic loads on acidification types at the control of pH under high load were studied by continuous anaerobic fermentation of fruit and vegetable wastes. The results showed that the acidification types and the concentration of acidified product kept unchanged as organic loads increased,and stable ethanolized products could be formed at pH=4, the acidification rate of which was low.

关 键 词：高负荷 厌氧发酵类型 PH 果蔬垃圾 

分 类 号：X799.3[环境科学与工程—环境工程]