Enhancement of Biogas Production from Swine Wastewater Using Electrochemical Pretreatment and Anaerobic Co-digestion with Rice Straw

2021 ◽  
pp. 291-300
Author(s):  
G. Lourinho ◽  
P. S. D. Brito
Keyword(s):  
Rice Straw ◽  
Biogas Production ◽  
Swine Wastewater ◽  
Electrochemical Pretreatment

scholarly journals STUDY OF THE POTENTIAL ANAEROBIC CO-DIGESTION FOR BIOGAS PRODUCTION FROM SALVINIA MOLESTA AND RICE STRAW

2017 ◽  
Vol 6 (1) ◽  
pp. 61-67
Author(s):  
Iqbal Syaichurrozi
Keyword(s):  
Rice Straw ◽  
Room Temperature ◽  
Fermentation Process ◽  
Biogas Production ◽  
Rumen Fluid ◽  
Salvinia Molesta ◽  
Initial Ph

The purpose of this research was to analyze the biogas production from co-digestion of Salvinia molesta and rice straw. Ratio of Salvinia molesta and rice straw was 5:0, 4:1, 3:2. Lab-scale-batch digesters (600 mL) were operated at room temperature (30 oC) and pressure of 1 atm. Total basis of Salvinia molesta and rice straw was 10 gr, water was added with ratio of organic matter:water = 1:7 (w/w), rumen fluid was added as inoculum, initial pH was adjusted to be 7. Fermentation process was conducted for 30 days. The results showed that total biogas volume for ratio of 5:0, 4:1, 3:2 was 6.300.00; 32.7618.32; 107.5418.51 mL/g VS respectively. The pH of substrate was changing from 7.00 to 6.770.19; 6.600.14; 6.730.09 for all variables respectively.

Change to biogas production in solid-state anaerobic digestion using rice straw as substrates at different temperatures

2019 ◽  
Vol 293 ◽  
pp. 122066 ◽  
Author(s):  
Yang Liu ◽  
Junnan Fang ◽  
Xinyu Tong ◽  
ChenChen Huan ◽  
Gaosheng Ji ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Solid State ◽  
Rice Straw ◽  
Biogas Production ◽  
Different Temperatures

Digestate recirculation through co-digestion with rice straw: Towards high biogas production and efficient waste recycling

2020 ◽  
Vol 263 ◽  
pp. 121441 ◽  
Author(s):  
Ping Ai ◽  
Mengdi Chen ◽  
Yi Ran ◽  
Keda Jin ◽  
Jingjing Peng ◽  
...  
Keyword(s):  
Rice Straw ◽  
Biogas Production ◽  
Waste Recycling

Enhanced biogas production from rice straw, triticale straw and softwood spruce by NMMO pretreatment

2012 ◽  
Vol 36 ◽  
pp. 116-120 ◽  
Author(s):  
Anna Teghammar ◽  
Keikhosro Karimi ◽  
Ilona Sárvári Horváth ◽  
Mohammad J. Taherzadeh
Keyword(s):  
Rice Straw ◽  
Biogas Production

Experiments on Anaerobic Digestion of Rice Straw for Biogas Production under NaOH Pretreatment

2014 ◽  
Vol 953-954 ◽  
pp. 220-223
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 ◽  
Biogas Slurry ◽  
Naoh Pretreatment ◽  
Pretreatment Technology ◽  
Peak Value

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).

Biogas production with co-digestion of sugarcane straw

2017 ◽  
Vol 28 (1) ◽  
pp. 94-106 ◽  
Author(s):  
Eduardo De Rossi ◽  
Cleber Antonio Lindino ◽  
Paulo André Cremonez ◽  
Kenia Gabriela Dos Santos ◽  
Reinaldo Aparecido Bariccatti ◽  
...  
Keyword(s):  
Citric Acid ◽  
Design Methodology ◽  
Biogas Production ◽  
Poultry Litter ◽  
Chemical Degradation ◽  
Swine Wastewater ◽  
Urea Solution ◽  
Content Type ◽  
Spectrophotometric Methods ◽  
Sugarcane Straw

Purpose The purpose of this paper is to investigate straw modification by chemical degradation generated by two forms of pretreatment, using citric acid in an autoclave and urea solution with sodium hydroxide at low temperature. Design/methodology/approach The material was digested and compared in biodigester reactors lined with natural straw, straw pretreated with citric acid, straw pretreated with urea and NaOH, and straw subjected to both the pretreatments. The amount of straw has been delimited to 0, 2.5, 5, 7.5 and 10 percent v/v, and used 20 percent v/v inoculum in all reactors, consisting of 30 percent v/v poultry litter and 70 percent swine wastewater (SW). The experiment was conducted in an incubator kept in mesophilic conditions (35°C). Findings The results indicate significant change in the studied material, with degradation of lignin as well as hemicellulose and cellulose exposed to further hydrolysis. Spectrophotometric methods were used for monitoring degradation. These methods were efficient in monitoring changes caused by the treatments. When the proposed pretreatments are applied to sugarcane straw, there is a significant gain in biogas production (L g VSR−1). The most appropriate rates for higher methane production in the pretreatments are 2.5 and 5 percent straw-SW. The best results for the anaerobic digestion of sugarcane straw were obtained by pretreating it with citric acid. Originality/value This paper shows a new use for the sugarcane straw waste after being pretreated with acid or base for the coproduction of biogas.

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