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Thermal-alkali and Enzymes for Efficient Biomethane Production from Co-digestion of Corn straw and Cattle Manure
Yuan, Ye; Bian, Aiqin; Zhang, Lulu; Chen, Zhengliang; Zhou, Fei; Ye, Fan; Jin, Tianlu; Pan, Mei; Chen, Tianming; Yan, Jinlong; Wang, Aijie; Li, Zhaoxia; Ding, Cheng
2019-08-01
Source PublicationBIORESOURCES
ISSN1930-2126
Volume14Issue:3Pages:5422-5437
AbstractThis research evaluated a sequential process of thermal-alkali pretreatment, enzymatic hydrolysis, and anaerobic co-digestion applied on a mixture of corn straw (CS) and cattle manure (CM). The results showed that the optimal conditions of thermo-alkaline pretreatment were a Ca(OH)(2) dosage of 1.5% and temperature of 120 degrees C. The optimal conditions of enzymatic hydrolysis in terms of cellulase loading, operational time, and protease loading were determined. Co-digestion with enzymes and thermal-alkali pretreatment achieved the highest methane yield of 0.41 m(3) kg(-1)-VS from the liquid of hydrolysates. An maximum applicable organic loading rate (OLR) of 13.7 kg-SCOD m(-3) d(-1) was found with a soluble chemical oxygen demand (SCOD) removal of 96.4% in an expanded granular sludge blanket (EGSB) reactor. The optimization of conditions could lead to the industrial-scale treatment of organic solids with a high energy yield and efficiency.
Department中国科学院环境生物技术重点实验室
KeywordThermal-alkali pretreatment Enzymatic hydrolysis Anaerobic co-digestion Methane production
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/43406
Collection中国科学院环境生物技术重点实验室
Affiliation1.Yancheng Inst Technol, Sch Environm Sci & Engn, Yancheng 224003, Peoples R China
2.Yancheng Inst Technol, Key Lab Adv Technol Environm Protect Jiangsu Prov, Yancheng 224051, Peoples R China
3.Jiangsu Keyida Environm Sci & Technol Co LTD, Yancheng 224007, Peoples R China
Recommended Citation
GB/T 7714
Yuan, Ye,Bian, Aiqin,Zhang, Lulu,et al. Thermal-alkali and Enzymes for Efficient Biomethane Production from Co-digestion of Corn straw and Cattle Manure[J]. BIORESOURCES,2019,14(3):5422-5437.
APA Yuan, Ye.,Bian, Aiqin.,Zhang, Lulu.,Chen, Zhengliang.,Zhou, Fei.,...&Ding, Cheng.(2019).Thermal-alkali and Enzymes for Efficient Biomethane Production from Co-digestion of Corn straw and Cattle Manure.BIORESOURCES,14(3),5422-5437.
MLA Yuan, Ye,et al."Thermal-alkali and Enzymes for Efficient Biomethane Production from Co-digestion of Corn straw and Cattle Manure".BIORESOURCES 14.3(2019):5422-5437.
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