基于Monod方程测定厌氧污泥活性  

Determination of Anaerobic Sludge Activity Based on Monod Equation

作　　者：潘君廷 邱凌[1,2] 马俊怡[1] 徐锐[3] 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]西北农林科技大学农业部农村可再生能源开发利用西部实验站,陕西杨凌712100 [3]云南师范大学能源与环境科学学院,云南昆明650500

出　　处：《中国沼气》2016年第2期30-35,共6页China Biogas

基　　金：国家自然科学基金(51576167)

摘　　要：文章根据Monod方程和厌氧消化理论提出了用厌氧污泥的最大比产气速率(Umax·gas)代替最大比产甲烷速率(Umax·CH4)作为评价厌氧污泥活性的指标,并尝试采用淀粉作为厌氧消化基质,在35℃±2℃和30℃±2℃条件下分别进行相应的测定实验,测定实验持续进行了60个小时。结果表明:可以通过测定厌氧污泥的最大比产气速率(Umax·gas)来评价厌氧污泥活性,并得到其测定条件为:温度为30℃±2℃时,测定时间段为实验启动后的第30小时至第40小时;温度为35℃±2℃时,测定时间段为实验启动后的第12小时至第18小时。待测污泥在30℃时的活性高于35℃时的活性。It was proposed in this paper that the maximum specific biogas production（ Umax·gas） could be taken as sludge activity indicator instead of maximum specific methane production（ Umax·CH4） based on Monod equation and anaerobic digestion theories. The corresponding experiments were carried out with starch as substrate and under condition of 35℃ ± 2℃and 30℃ ± 2℃ respectively. The experiment lasted for 60 h. The results indicated that it was possible to adopt the maximum specific biogas production as indicator for sludge activity evaluation,and the determination conditions were temperature of 30℃ ± 2℃,beginning the determination after system starting up for 30 h ～ 40 h,or under temperature of 35℃ ±2℃,beginning the determination after system starting up for 12 h ～ 18 h. The sludge activity under 30℃ ± 2℃ was higher than that under 35℃ ± 2℃.

关 键 词：厌氧污泥活性 测定方法 测定条件 最大比产甲烷速率 淀粉 

分 类 号：S216.4[农业科学—农业机械化工程] X703[农业科学—农业工程]