可再生能源2012,Vol.30Issue(11):87-92,6.
剩余污泥水解酸化挥发酸产量最大化试验研究
Studies on maximizing the production of VFAs in hydrolysis and acidification process of waste activated sludge
摘要
Abstract
Factors of hydrolysis and acidification process to maximize the production of VFAs in waste activated sludge were studied. To inhibit the interference of methane-producing reactions in the process of hydrolysis and acidification, Chloroform was added in the test. Firstly, effect of different dosage of chloroform at 45 X was investigated to find the most appropriate dosage to inhibit the reaction of methanogens and discuss the effect on the hydrolysis and acidification process as well. Then according to the above conclusions, the optimal dosage of chloroform was used as methanogenic inhibitor to exclude the consumption of VFAs. Focused on the temperature of 35 X and 45 X, the volatile acid production potential was studied. The results showed that, at 45 X, the maximum value of SCOD can be achieved at 225.51 mg/gVS and the maximum accumulation of VFAs was 155.71 mgCOD/gVS, which was 21.22% higher than 35 ℃. 45 ℃ is more conducive to the dissolved organic matter and volatile acids accumulated and also can effectively promote the occurrence of hydrolysis and acidification reaction.关键词
剩余污泥/水解酸化/产甲烷菌Key words
waste activated sludge/hydrolysis and acidification/methanogenic bacteria分类
资源环境引用本文复制引用
蔚静雯,郑明霞,王坤,王凯军,陶涛..剩余污泥水解酸化挥发酸产量最大化试验研究[J].可再生能源,2012,30(11):87-92,6.基金项目
国家高技术研究发展"863"计划项目(2009AA064702). (2009AA064702)