Comparison of dry and wet milling pre-treatment methods for improving the anaerobic digestion performance of the Pennisetum hybrid

doi:10.1039/c6ra27822a

CORC > 广州能源研究所 > 中国科学院广州能源研究所 > 中国科学院广州能源研究所

	Comparison of dry and wet milling pre-treatment methods for improving the anaerobic digestion performance of the Pennisetum hybrid
	Dong Pengyu 1,2; Li Lianhua1 ; Zhen Feng1 ; Kong Xiaoying1 ; Sun Yongming1 ; Zhang Yi 1,2
刊名	RSC ADVANCES
	2017
卷号	7 期号:21 页码:12610-12619
DOI	10.1039/c6ra27822a
文献子类	Article
英文摘要	Two types of milling pre-treatment methods were used to study their effects on the anaerobic digestion performance of the Pennisetum hybrid. The physical structure of the Pennisetum hybrid could be significantly damaged with both milling pre-treatment methods. With an increase in treatment time, the pore volume, surface area, average pore diameter, and the crystallization index of the Pennisetum hybrid increased gradually. The anaerobic fermentation test showed that, among the dry and wet milling pre-treatments, the highest specific methane yield was obtained at 3 h dry milling pre-treated (358.07 mL g(-1) VS) and 6 h wet milling pre-treated grass (315.87 mL g(-1)), which was 41.04% and 24.42% higher than that of the untreated Pennisetum hybrid (253.88 mL g(-1) VS). The median diameter (D50) of the Pennisetum hybrid was 25.28% and 22.36% lower than that of the untreated Pennisetum hybrid after 3 h dry and 6 h wet milling pre-treatment. After wet milling pre-treatment, the fluidity of the Pennisetum hybrid was much better than conventional "smashing" pre-treatment, which may make feeding easier in large-scale biogas projects. Good fluidity and optimization of the degree of milling pre-treatment could, therefore, be applied on an industrial scale in the future.
WOS关键词	WASTE ACTIVATED-SLUDGE ; BIOGAS PRODUCTION ; METHANE PRODUCTION ; PARTICLE-SIZE ; DEGRADATION ; CELLULOSE ; IMPACT ; DISINTEGRATION ; HYDROLYSIS ; DISPERSER
语种	英语
WOS记录号	WOS:000395934500022
资助机构	Science and Technology Service Network Initiative(KFJ-Ew-STS-138) ; National Science and Technology Support Program: Key technology and engineering demonstration of lignocellulosic biomass energy conversion(2013BAD22B03)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/14072]
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Dong Pengyu,Li Lianhua,Zhen Feng,et al. Comparison of dry and wet milling pre-treatment methods for improving the anaerobic digestion performance of the Pennisetum hybrid[J]. RSC ADVANCES,2017,7(21):12610-12619.
APA	Dong Pengyu,Li Lianhua,Zhen Feng,Kong Xiaoying,Sun Yongming,&Zhang Yi.(2017).Comparison of dry and wet milling pre-treatment methods for improving the anaerobic digestion performance of the Pennisetum hybrid.RSC ADVANCES,7(21),12610-12619.
MLA	Dong Pengyu,et al."Comparison of dry and wet milling pre-treatment methods for improving the anaerobic digestion performance of the Pennisetum hybrid".RSC ADVANCES 7.21(2017):12610-12619.