响应面法优化生物炭与牛粪混合厌氧发酵工艺  

Optimizing the Mixed Anaerobic Fermentation of Biocarbon and Cow Dung Using Response Surface Methodology

作　　者：王粟 史风梅 李家磊[2] 裴占江 高亚冰 刘杰 WANG Su;SHI Feng-mei;LI Jia-lei;PEI Zhan-jiang;GAO Ya-bing;LIU Jie(Rural Energy and Environmental Protection Institute of Heilongjiang Academy of Agricultural Sciences,Key Laboratory of Crop and Livestock Integration,Ministry of Agriculture and Rural Affairs of the People’s Republic of China,Key Laboratory of Straw Energy of Heilongjiang Province,Harbin 150086,China;Food Processing Institute of Heilongjiang Agricultural Sciences,Harbin 150086,China)

机构地区：[1]黑龙江省农业科学院农村能源与环保研究所,农业农村部种养结合重点实验室,黑龙江省秸秆能源化重点实验室,黑龙江哈尔滨150086 [2]黑龙江省农业科学院食品加工研究所,黑龙江哈尔滨150086

出　　处：《中国沼气》2020年第1期19-24,共6页China Biogas

基　　金：哈尔滨市创新人才项目(2016RAQYJ070);黑龙江省农业科学院院级课题(2018YYF037);黑龙江省农业科学院优秀团队项目(2019KYJL013,2019CJJL009)。

摘　　要：为了提高厌氧发酵产气效率,在单因素试验基础上,采用响应面法对厌氧发酵工艺参数进行优化,通过Box-Behnken中心组合试验设计,以厌氧发酵产气量为响应值,研究发酵温度、总固体浓度和生物炭添加量3个因素对厌氧发酵的影响,建立相关数学模型,并进行试验验证。结果表明:3个因素对厌氧发酵产气效率的影响均达到显著水平,最优工艺条件为发酵温度41℃,总固体浓度8.9%,水稻秸秆炭7.9%,在此工艺条件下,厌氧发酵产气量达到2735 mL±37 mL,与预测产气量2693 mL,两者偏差在2.0%以内。因此,所建模型能较好地用于生物炭与牛粪混合厌氧发酵产气量的预测。In order to improve the biogas yield,response surface methodology was used to optimize the parameters of mixed anaerobic fermentation of biocarbon and cow dung.Based on Box-Behnken central combination experiment design,the effects of fermentation temperature,total solid concentration and biocarbon content on biogas yields were studied.The relevant mathematical model was established and validated by experiments.The results showed that the effects of the three factors on the biogas yield were all significant.The optimum conditions were:fermentation temperature 41℃,total solid concentration 8.9%,and rice straw carbon 7.9%.The biogas production reached 2735 mL±37 mL under the optimal condition,comparing with the predicted gas production of 2693 mL,the deviation was within 2.0%.It was proved that the model could be used to predict the biogas yield of bioccarbon and cow manure mixed fermentation.

关 键 词：生物炭 牛粪 厌氧发酵 响应面 工艺优化 

分 类 号：S216.4[农业科学—农业机械化工程] X713[农业科学—农业工程]