金银花露与午时茶药渣中温厌氧特性  

Mesophilic anaerobic characteristics of honeysuckle and midday tea herbs residues

作　　者：徐俊虎[1] 郭强[1] 缪巍[1] 史波芬[1] 刘涛[1] XU Junhu GUO Qiang MIAO Wei SHI Bofen LIU Tao(China Urban Construction Design ＆ Research Institute Co., Ltd., Beijing 100120, China)

机构地区：[1]中国城市建设研究院有限公司,北京100120

出　　处：《环境工程技术学报》2017年第4期489-494,共6页Journal of Environmental Engineering Technology

摘　　要：以金银花露和午时茶药渣为研究对象,在(37±1)℃下利用自制的厌氧反应装置对药渣进行半固相中温厌氧试验,按厌氧污泥与药渣总固体质量比为1∶2、1∶1、2∶1和3∶0将厌氧污泥接种至药渣中。结果表明:当厌氧污泥与药渣总固体质量比为1∶1时,药渣产甲烷效果最佳,金银花露和午时茶药渣最终产甲烷量为78.2和109.0 mL/g。在接种厌氧污泥与混合药渣总固体质量比为1∶1前提下,金银花露药渣与午时茶药渣总固体质量比分别按0∶3、1∶1、1∶2、2∶1和3∶0配制厌氧发酵底物,在同样温度下进行厌氧发酵试验。结果表明:金银花露药渣与午时茶药渣总固体质量比为1∶2时,最终产甲烷量为138.2 mL/g,且在0~96 h厌氧反应产气较快,其动力学行为符合0级反应动力学方程,反应速率常数(k)为1.11 mL/(h·g)。为获得最大的产甲烷速率,厌氧反应应控制在0级反应阶段。A self-prepared anaerobic reactor was utilized to treat the residues of honeysuckle and midday tea in semi-solid phase media. The anaerobic sludge was inoculated into the residues for anaerobic digestion at the temperature of（ 37 ± 1） ℃ and under the inoculum to substrate ratios（ ISRs） of 1 ∶ 2,1 ∶ 1,2 ∶ 1 and 3 ∶ 0,respectively. The results showed that the ultimate maximum yield of methane was under ISRs of 1 ∶ 1,and the cumulative methane production volume of honeysuckle and midday tea dregs was 78. 2 and 109. 0 mL/g,respectively. Under the optimal inoculation ratio of 1∶1,another mesophilic anaerobic experiment was carried out by mixing the residues of honeysuckle and midday tea as substrate at different ratios of 0∶3,1 ∶2,1 ∶1,2 ∶1 and 3 ∶0,respectively,at（ 37 ± 1） ℃. The result indicated that the ultimate maximum yield of methane was under mixed ratio of 1∶2,and the cumulative methane production volume of the mixed Chinese herbs residues was 138. 2 mL/g.Furthermore,the zero-order kinetic model was found to be suitable to characterize the removal ratio of substrate during 0-96 h digestion while the biogas was generated fast,and the kinetic constant k was 1. 11 mL/（ h·g）. To obtain the ultimate maximum rate of methane production,the anaerobic reaction should be controlled under the stage of zero-order reaction.

关 键 词：金银花露 午时茶 协同厌氧消化 产甲烷动力学 

分 类 号：X705[环境科学与工程—环境工程]