Hydrothermal pretreatment of rice straw at relatively lower temperature to improve biogas production via anaerobic digestion

To discuss the effect of NaOH pretreatment technology for biogas production and methane (CH4) content enhancement during the anaerobic digestion of rice straw waste, a self-designed laboratory-scale continuous anaerobic biogas digester was used in this study. Anaerobic biogas slurry, NaOH pretreatment and anaerobic digestion were evaluated for biogas production from rice straw. The results showed that the peak value of biogas production was attained on the 16th day by using 6% NaOH pretreatment on rice straw. However, the highest CH4 content was 60.8% on the 24th day for the 4% NaOH-treated rice straw. The cumulative biogas production of 6% NaOH pretreatment was the highest, about 18 720 mL, which was followed by 8% NaOH (15 057 mL), 4% NaOH (12 103 mL), and 2% NaOH (10 754 mL).

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Biogas Production and Microbial Community Dynamics during the Anaerobic Digestion of Rice Straw at 39–50 °C: A Pilot Study

Energy & Fuels ◽

10.1021/acs.energyfuels.7b04042 ◽

2018 ◽

Vol 32 (4) ◽

pp. 5157-5163 ◽

Cited By ~ 13

Author(s):

Qing Yu ◽

Zhenzhen Tian ◽

Jingyuan Liu ◽

Jun Zhou ◽

Zhiying Yan ◽

...

Keyword(s):

Microbial Community ◽

Anaerobic Digestion ◽

Pilot Study ◽

Rice Straw ◽

Community Dynamics ◽

Biogas Production ◽

Microbial Community Dynamics

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Improving the Mixing Performances of Rice Straw Anaerobic Digestion for Higher Biogas Production by Computational Fluid Dynamics (CFD) Simulation

Applied Biochemistry and Biotechnology ◽

10.1007/s12010-013-0375-z ◽

2013 ◽

Vol 171 (3) ◽

pp. 626-642 ◽

Cited By ~ 33

Author(s):

Fei Shen ◽

Libin Tian ◽

Hairong Yuan ◽

Yunzhi Pang ◽

Shulin Chen ◽

...

Keyword(s):

Fluid Dynamics ◽

Computational Fluid Dynamics ◽

Anaerobic Digestion ◽

Rice Straw ◽

Cfd Simulation ◽

Biogas Production ◽

Computational Fluid Dynamics Cfd

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Anaerobic Digestion of Rice Straw for Biogas Production

Sustainable Rice Straw Management ◽

10.1007/978-3-030-32373-8_5 ◽

2019 ◽

pp. 65-92 ◽

Cited By ~ 1

Author(s):

Nguyen Vo Chau Ngan ◽

Francis Mervin S. Chan ◽

Tran Sy Nam ◽

Huynh Van Thao ◽

Monet Concepcion Maguyon-Detras ◽

...

Keyword(s):

Anaerobic Digestion ◽

Rice Straw ◽

Biogas Production

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Potential of Pineapple Waste Extract (PWE) as Co-substrate in Anaerobic Digestion of Rice Straw Washwater (RSWW): Enhancement of Biogas Production

GCEC 2017 - Lecture Notes in Civil Engineering ◽

10.1007/978-981-10-8016-6_107 ◽

2018 ◽

pp. 1479-1493

Author(s):

Nurul Shafiqah Rosli ◽

Syazwani Idrus ◽

Azmir Md Dom ◽

Nik Norsyahariati Nik Daud

Keyword(s):

Anaerobic Digestion ◽

Rice Straw ◽

Biogas Production ◽

Pineapple Waste ◽

Waste Extract

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Urea (CO(NH2)2) Pretreatment Improve Biogas Production Performance of Rice Straw

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.587-589.896 ◽

2014 ◽

Vol 587-589 ◽

pp. 896-899 ◽

Cited By ~ 1

Author(s):

Ben Lin Dai ◽

An Feng Zhu ◽

Fei Hu Mu ◽

Ning Xu ◽

Zhen Wu

Keyword(s):

Anaerobic Digestion ◽

Rice Straw ◽

Biogas Production ◽

Laboratory Scale ◽

Production Performance ◽

Biogas Slurry ◽

Internal Effect ◽

Peak Value

To discuss the internal effect of urea (CO(NH2)2) pretreatment on anaerobic digestion biogas production of rice straw waste, a self-designed laboratory-scale continuous anaerobic biogas digester was used in this study. Anaerobic biogas slurry, urea pretreatment and anaerobic digestion were evaluated for biogas production from rice straw. The results showed that the peak value of biogas production was attained on the 17th day by using 6% urea pretreatment on rice straw. However, the highest CH4 content was 49.8% on the 15th day for the 8% urea-treated rice straw. The cumulative biogas production of 6% urea pretreatment was the highest, about 16 540 mL, which was followed by 2% urea (12 283 mL), 8% urea (9 883 mL), and 4% urea (5 668 mL).

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