金银花露与午时茶药渣中温厌氧特性

徐俊虎; 郭强; 缪巍; 史波芬; 刘涛

doi:10.3969/j.issn.1674-991X.2017.04.067

金银花露与午时茶药渣中温厌氧特性

doi: 10.3969/j.issn.1674-991X.2017.04.067

中国城市建设研究院有限公司,北京 100120

详细信息

作者简介:
徐俊虎(1989—),男,硕士,主要从事固体废物污染控制与资源化技术研究, cucdxjh@126.com

中图分类号: X705
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出版历程
- 收稿日期: 2017-02-07
- 刊出日期: 2017-07-20

Mesophilic anaerobic characteristics of honeysuckle and midday tea herbs residues

China Urban Construction Design & Research Institute Co., Ltd., Beijing 100120, China

摘要

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。
- 金银花露 /
- 午时茶 /
- 协同厌氧消化 /
- 产甲烷动力学
Abstract: 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.
- honeysuckle /
- midday tea /
- synergistic anaerobic digestion /
- methanogenic

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