牛粪高温厌氧发酵过程中的流变特性及产气规律

兰州理工大学学报 ›› 2021, Vol. 47 ›› Issue (3): 33-39.

牛粪高温厌氧发酵过程中的流变特性及产气规律

李金平^*1,2,3,4, 蒋琴^2,4, 黄娟娟^1,2,3,4, 王春龙^1,2,3,4

1.兰州理工大学西部能源与环境研究中心, 甘肃兰州 730050;
2.兰州理工大学甘肃省生物质能与太阳能互补供能系统重点实验室, 甘肃兰州 730050;
3.兰州理工大学西北低碳城镇支撑技术协同创新中心, 甘肃兰州 730050;
4.兰州理工大学能源与动力工程学院, 甘肃兰州 730050

收稿日期:2020-03-30 出版日期:2021-06-28 发布日期:2021-07-19
通讯作者: 李金平(1977-),男,博士,教授,博导.Email:lijinping77@163.com
基金资助:
国家自然科学基金(51676094),国家重点研发计划课题(2018YFB0905104),兰州市人才创新创业项目(2017-RC-34),中央引导地方科技发展专项项目,甘肃省高等学校科技成果转化项目(2018D-04)

Rheological properties and gas production law of cattle manure during anaerobic fermentation process at thermophilic temperature

LI Jin-ping^1,2,3,4, JIANG Qin^2,4, HUANG Juan-juan^1,2,3,4, WANG Chun-long^1,2,3,4

1. Western China Energy & Environment Research Center, Lanzhou Univ. of Tech., Lanzhou 730050, China;
2. Key Laboratory of Complementary Energy System of Biomass and Solar Energy of Gansu Province, Lanzhou Univ. of Tech., Lanzhou 730050, China;
3. China Northwestern Collaborative Innovation Center of Low-carbon Urbanization Technologies, Lanzhou Univ. of Tech., Lanzhou 730050,China;
4. College of Energy and Power Engineering, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2020-03-30 Online:2021-06-28 Published:2021-07-19

摘要/Abstract

摘要： 为研究厌氧发酵过程中高浓度发酵原料流变特性的变化,使用HYND-50振动式在线黏度计测量初始总固体质量分数分别为8%和15%时牛粪高温厌氧发酵产沼气过程的流变特性,研究温度和厌氧消化时间对流变特性和产气规律的影响.结果表明:在相同升温范围内,初始总固体质量分数越大,牛粪的活化能越大,流动性越差.在厌氧发酵过程中,牛粪的表观黏度随厌氧消化时间减小,随初始总固体质量分数增加而增大;密度随厌氧消化时间先增大后减小,随初始总固体质量分数增加而增大.随着初始总固体质量分数的增大,牛粪的最大日产气量、累计产气量和累计产甲烷量升高,初始总固体质量分数为15%时的量分别是8%时的1.29、1.24和1.25倍.

关键词: 牛粪, 厌氧发酵过程, 流变特性, 表观黏度, 密度, 产气规律

Abstract: In order to study the rheological properties of high concentration fermentation raw materials during anaerobic fermentation process, the HYND-50 vibration online viscometers were used to measure the rheological properties of cattle manure with initial total solid mass fraction of 8% and 15% during the process of anaerobic fermentation biogas production at thermophilic temperature, and the effects of temperature and anaerobic digestion time on its rheological properties and gas production law were studied. The results demonstrated that within the same temperature rising range, the greater the initial total solid mass fraction of cattle manure was, the greater the activation energy was and the worse the fluidity was. During the process of anaerobic fermentation, the apparent viscosities decreased with the anaerobic digestion time, and increased with the increase of initial total solid mass fraction, the densities increased first, then decreased with the anaerobic digestion time and increased with the increase of initial total solid mass fraction. With the increase of initial total solid mass fraction, the maximum daily gas production, cumulative gas production and cumulative methane production increased, when initial total solid mass fraction was 15%, they were 1.29, 1.24 and 1.25 times of which when it was 8% respectively.

Key words: cattle manure, anaerobic fermentation process, rheological properties, apparent viscosity, density, gas production law

中图分类号:

李金平, 蒋琴, 黄娟娟, 王春龙. 牛粪高温厌氧发酵过程中的流变特性及产气规律[J]. 兰州理工大学学报, 2021, 47(3): 33-39.

LI Jin-ping, JIANG Qin, HUANG Juan-juan, WANG Chun-long. Rheological properties and gas production law of cattle manure during anaerobic fermentation process at thermophilic temperature[J]. Journal of Lanzhou University of Technology, 2021, 47(3): 33-39.

参考文献

[1] 李刚,郝炯驹,贺超,等.牛粪厌氧发酵过程中的分层流变特性 [J].农业工程学报,2015,31(19):228-233.
[2] 朱坤展,刘建禹,赵欣,等. 牛粪发酵原料流变特性与表观粘度研究 [J]. 农机化研究,2016,38(12):266-269.
[3] SALEHIYON A R,MINAEI S,RAZAVI S J.Rheological properties of sand-laden dairy manure:Modeling by concentration and temperature [J].Agricultural Engineering International:CIGR Journal,2015,17(1):284-292.
[4] HREIZ R,ADOUANI N,FÜNFSCHILLING D,et al.Rheological characterization of raw and anaerobically digested cow slurry [J].Chemical Engineering Research and Design,2017,119:47-57.
[5] 刘刈,邓良伟,王智勇.几种厌氧消化原料的流变特性及其影响因素 [J].农业工程学报,2009,25(8):204-209.
[6] CHEN Y R.Rheological properties of sieved beef-cattle manure slurry:Rheological model and effects of temperature and solids concentration [J].Agricultural Wastes,1986,15(1):17-33.
[7] ACHKARI-BEGDOURI A,GOODRICH P R.Rheological properties of Moroccan dairy cattle manure [J].Bioresource Technology,1992,40(2):149-156.
[8] UMETSU K,TAKAHATA H,HASHIMOTO A G.Effects of temperature and solids concentration on rheological properties of dairy manure slurry [J].Journal of the Society of Agricultural Structures,1995,26(3):139-144.
[9] LANDRY H,LAGUE C,ROBERGE M.Physical and rheological properties of manure products [J].Applied Engineering in Agriculture,2004,20(3):277-288.
[10] EL-MASHAD H M,VAN LOON W K P,ZEEMAN G,et al.Rheological properties of dairy cattle manure [J].Bioresource Technology,2005,96(5):531-535.
[11] KEENER H M,HOORMAN J J,KLINGMAN M H.Rheology and flowability properties of liquid dairy and swine waste [C]//ASABE Annual International Meeting.Portland:ASABE,2006:1-8.
[12] 熊尚凌.家庭粪便和厨余垃圾现场处理技术研究 [D].武汉:华中科技大学,2004.
[13] DAK M,VERMA R C,JAAFFREY S N A.Effect of temperature and concentration on rheological properties of “Kesar” mango juice [J].Journal of Food Engineering,2007,80(4):1011-1015.
[14] KAYA A,BELIBAGLI K B.Rheology of solid Gaziantep Pekmez [J].Journal of Food Engineering,2002,4(3):221-226.
[15] ASTOLFI-FILHO Z,TELIS V R N,OLIVEIRA E B D,et al.Rheology and fluid dynamics properties of sugarcane juice [J].Biochemical Engineering Journal,2011,53(3):260-265.
[16] 英克鲁佩勒.传热和传质基本原理 [M].叶宏,葛新石,译.第6版.北京:化学工业出版社,2007.
[17] 陈惠钊.粘度测量 [M].修订版.北京:中国计量出版社,2003:1-2.
[18] 崔维栋.混合物料协同厌氧消化产甲烷性能研究 [D].兰州:兰州理工大学,2018.
[19] 李金平,周丹丹,张庆芳,等.温度对高浓度恒温厌氧发酵产沼气成分的影响 [J].兰州理工大学学报,2012,38(6):50-54.