期刊
MOLECULES
卷 26, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/molecules26226782
关键词
anaerobic digestion; biogas; soapstock; acid splitting wastewater; MONG
资金
- KLM Energia Sp. z o.o.
This study investigated the potential use of acid splitting wastewater, interphase, and matter organic non glycerol as substrates for biogas production through thermophilic anaerobic digestion experiments. The addition of specific commercial enzymes during hydrolysis stage significantly enhanced methane yields. Co-digestion of the substrates showed promising results in terms of methane production and volatile solid reduction.
This study investigated acid splitting wastewater (ASW) and interphase (IF) from soapstock splitting, as well as matter organic non glycerol (MONG) from glycerol processing, as potential substrates for biogas production. Batch and semicontinuous thermophilic anaerobic digestion experiments were conducted, and the substrates were preliminary treated using commercial enzymes kindly delivered by Novozymes A/C. The greatest enhancement in the batch digestion efficiency was achieved when three preparations; EversaTransform, NovoShape, and Lecitase were applied in the hydrolysis stage, which resulted in the maximum methane yields of 937 NL/kg VS and 915 NL/kg VS obtained from IF and MONG, respectively. The co-digestion of 68% ASW, 16% IF, and 16% MONG (wet weight basis) performed at an organic loading rate (OLR) of 1.5 kg VS/m(3)/day provided an average methane yield of 515 NLCH4/kg VSadded and a volatile solid reduction of nearly 95%. A relatively high concentration of sulfates in the feed did not significantly affect the digestion performance but resulted in an increased hydrogen sulfide concentration in the biogas with the peak of 4000 ppm.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据