Effects of hydrothermal pretreatment and bamboo hydrochar addition on anaerobic digestion of tofu residue for biogas production

被引：16
|
作者：
Choe, Ungyong [1 ,3 ]
Mustafa, Ahmed M. [2 ,4 ]
Zhang, Ximing [1 ]
Sheng, Kuichuan [1 ]
Zhou, Xuefei [2 ]
Wang, Kaiying [1 ]
机构：
[1] Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Peoples R China
[2] Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resourses Reuse, Shanghai 200092, Peoples R China
[3] Univ Sci, Fac Environm Sci, Yusheng Scientist Rd, Unjong Dist 00850, Pyongyang, North Korea
[4] Suez Canal Univ, Fac Agr, Dept Agr Engn, Ismailia 41522, Egypt
来源：
BIORESOURCE TECHNOLOGY | 2021年 / 336卷
关键词：
Hydrothermal pretreatment; Hydrochar; Tofu residue; Biogas Production; Anaerobic co-digestion; MUNICIPAL SOLID-WASTE; CO-DIGESTION; METHANE PRODUCTION; ORGANIC FRACTION; RICE STRAW; FOOD WASTE; CARBONIZATION; SLUDGE; OKARA; BIOMASS;
D O I：
10.1016/j.biortech.2021.125279
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The effect of hydrothermal pretreatment (HTP) of tofu residue (TR) and co-digestion of TR with hydrochar (HC) and a liquid fraction (LF) of hydrothermal pretreatment on biogas production was studied. The highest biogas and methane yield observed with the pretreated TR at HTP temperature of 140 degrees C reached 288 and 207 L/Kg VS, 24 and 37% above than the raw TR (control), respectively, and the highest content of methane 72%. Adding 4 g/L of HC (produced at 200 degrees C) enhanced the methane and biogas yield by 18 and 19% compared to untreated TR, respectively. It was found that HTP at temperature 140 degrees C and additive HC-200 (4 g/L) was the most efficient for biogas production from tofu residue and significantly reduced the digestion time needed from 20 to 10-13 days to reach 95% of biogas yield, which may result in substantial economic benefits.
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页数：10
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