文献详情
Benefit of solid-liquid separation on volatile fatty acid production from grass clipping with ultrasound-calcium hydroxide pretreatment
文献类型：期刊
期刊名称：Bioresource technology影响因子和分区
年：2019
卷：274
页码：97-104
ISSN：1873-2976
关键词：Kinetic model,Microbial community composition,Solid-liquid separation,US-Ca(OH)(2) pretreatment,VFA production
摘要：Ultrasound-calcium hydroxide (US-Ca(OH)2) pretreatment effectively enhanced volatile fatty acid (VFA) production from lignocellulosic biomass. In this paper, solid and liquid fraction of pretreated grass clipping was for the first time separately fermented in order to improve organic recovery from liquid fraction and reduce inhibition due to alkaline pretreatment. The total VFA yield and VS removal reached 515?mg/g TS and 59.7% after solid-liquid separation, exhibiting an increase of 116.7% and ...More
Ultrasound-calcium hydroxide (US-Ca(OH)2) pretreatment effectively enhanced volatile fatty acid (VFA) production from lignocellulosic biomass. In this paper, solid and liquid fraction of pretreated grass clipping was for the first time separately fermented in order to improve organic recovery from liquid fraction and reduce inhibition due to alkaline pretreatment. The total VFA yield and VS removal reached 515?mg/g TS and 59.7% after solid-liquid separation, exhibiting an increase of 116.7% and 91.9% comparing to that of mixture sample. The dominate components of VFAs are acetic and propionate acid, accounting for 80-90% of total VFAs. Kinetic analysis showed that the highest maximum VFA production rate of 690?mg/L·d and the highest cumulative VFA production potential of 3299?mg/L were achieved in the fermentation of solid fraction. Microbial analysis showed that the dominate genera for VFA production were Halocella and Ruminiclostridium, both with a relative abundance of 20.1% in fermentation of solid fraction.Copyright ? 2018 Elsevier Ltd. All rights reserved. ...Hide

DOI：10.1016/j.biortech.2018.11.072
百度学术：Benefit of solid-liquid separation on volatile fatty acid production from grass clipping with ultrasound-calcium hydroxide pretreatment
语言：外文
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