Volatile fatty acids produced by co-fermentation of waste activated sludge and henna plant biomass
Volatile fatty acids produced by co-fermentation of waste activated sludge and henna plant biomass
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废活性污泥与指甲花植物生物质共同发酵产生的挥发性脂肪酸
DOI：
10.1016/j.biortech.2016.03.071
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发表时间：
2016
影响因子：
11.4
通讯作者：
Tang Junhong
中科院分区：
文献类型：
--
作者：
Huang Jingang;Zhou Rongbing;Chen Jianjun;Han Wei;Chen Yi;Wen Yue;Tang Junhong
研究了废活性污泥与指甲花植物生物质厌氧共发酵生产挥发性脂肪酸的工艺。结果表明，挥发性脂肪酸是释放有机物的主要成分，挥发性脂肪酸的积累量远高于可溶性碳水化合物和蛋白质。与WAS相比，HPB是VFAs生产的有利底物;并且HPB单发酵系统中的最大VFAs浓度是WAS单发酵系统中的约2.6倍。在共发酵系统中，VFAs的积累与HPB在混合基质中的比例呈正相关，当HPB从25%增加到75%时，VFAs的积累量增加一倍。HPB不仅能调节C/N比，而且伴随和/或释放的指甲花醌也可能对VFAs的产生有正的电子穿梭效应。
Anaerobic co-fermentation of waste activated sludge (WAS) and henna plant biomass (HPB) for the enhanced production of volatile fatty acids (VFAs) was investigated. The results indicated that VFAs was the main constituents of the released organics; the accumulation of VFAs was much higher than that of soluble carbohydrates and proteins. HPB was an advantageous substrate compared to WAS for VFAs production; and the maximum VFAs concentration in an HPB mono-fermentation system was about 2.6-fold that in a WAS mono-fermentation system. In co-fermentation systems, VFAs accumulation was positively related to the proportion of HPB in the mixed substrate, and the accumulated VFAs concentrations doubled when HPB was increased from 25% to 75%. HPB not only adjust the C/N ratio; the associated and/or released lawsone might also have a positive electron-shuttling effect on VFAs production.