摘要
厌氧发酵是利用畜禽粪污资源化的重要手段。然而,牛粪中木质纤维素含量高、难以降解,导致其厌氧发酵产气效率低,限制了在牛粪中的应用。为优化牛粪厌氧发酵性能,拓宽原料来源,在中温(37℃)下进行不同比例白菜尾菜与牛粪混合的批次试验(混合比例为100:0、75:25、50:50、25:75和0:100)。结果表明,与白菜混合发酵可以提高牛粪的厌氧发酵性能。当白菜与牛粪混合比例为75:25时,产甲烷潜能达到最大值(419 mL·g^(-1))。此外,根据Gompertz模型的拟合结果,最佳混合比例下的累积甲烷产量、有效产甲烷时间和产甲烷速率均显著优于其他组。因此,白菜尾菜与牛粪混合厌氧发酵是实现较好产气效果的一种有效方法。
Anaerobic digestion is an essential method for resource utilization of livestock manure.However,the high content of refractory lignocellulose in cattle manure leads to the low efficiency of AD,which limits the application of this technology in cattle manure treatment.This study aimed to optimize the AD performance of cattle manure and broaden the substrate source for AD.A batch experiment conducted under mesophilic(37℃)conditions with different mixing ratios of cabbage waste and cattle manure(100:0,75:25,50:50,25:75,and 0:100).The results showed that the AD performance of cattle manure improved by co-digestion with cabbage waste.A 75:25 mixing ratio of cabbage waste to cow dung yielded methane up to 419 mL·g^(-1).Moreover,the Gompertz model’s fitting results showed that the cumulative methane production,sufficient methane production time,and methane production rate under optimal mixing ratio were significantly superior to the other groups employed.The results showed that the anaerobic codigestion of cabbage waste and cattle manure could achieve better biogas production.
作者
于欣卉
黄思思
张富涛
邹怀晨
毕少杰
王彦杰
Yu Xinhui;Huang Sisi;Zhang Futao;Zou Huaichen;Bi Shaojie;Wang Yanjie(College of Life Science and Technology,Heilongjiang Bayi Agricultural University,Daqing 163319;Heilongjiang Provincial Key Laboratory of Environmental Microbiology and Recycling of Agro-waste in Cold Region)
出处
《黑龙江八一农垦大学学报》
2023年第6期81-87,共7页
journal of heilongjiang bayi agricultural university
基金
黑龙江八一农垦大学创新创业项目(202210223061)
大庆市指导课题(zd-2021-91)
黑龙江八一农垦大学学成、引进人才科研启动计划(XDB2015-26,XYB202022)。
关键词
牛粪
白菜尾菜
厌氧发酵
产甲烷潜能
产甲烷动力学
cattle manure
cabbage waste
anaerobic digestion
methane production potential
methane production dynamics
作者简介
于欣卉(1993-),女,黑龙江八一农垦大学生命科学技术学院2021级硕士研究生;通信作者:王彦杰,男,教授,博士研究生导师,E-mail:wangyanjie1972@163.com;毕少杰,男,副教授,硕士研究生导师,E-mail:bishaojie1990@163.com。
