LAPSE:2023.16180
Published Article
LAPSE:2023.16180
The Effects of Using Pretreated Cotton Gin Trash on the Production of Biogas from Anaerobic Co-Digestion with Cow Manure and Sludge
March 3, 2023
Abstract
Anaerobic co-digestion (AcoD) has been practiced for decades to convert waste into value-added energy products, especially biogas. This study aimed to assess the potential of biogenic methane (CH4) production from the co-digestion of pretreated cotton gin trash (CGT), cow manure, and sludge. CGT contains high cellulosic content, making it a reliable feedstock for biogenic methane production. To further improve the biogas quantity and quality, the CGT was subjected to physical pretreatments, i.e., hot water (HW), ultra-sonication (US), and a combination of both (HW+US). After 91 days of AcoD, 79−110 L of biogas was produced by the treatments. Among the treatments, HW+US-pretreated CGT presented maximum biogas production capacity, at 110 L. Besides, this treatment showed the high-quality biogenic CH4 content, 52.4% of the total biogas volume, with an improved conversion rate of 0.37 L/g of volatile suspended solids consumed. In addition, this study discussed the structural changes in feedstock due to pretreatments and correlated them with the corresponding biogenic methane production. The study reports the potential of pretreated CGT conversion to CH4. It will impact the circular economy by contributing to on-farm energy requirements and reducing the financial expenditures incurred in this regard.
Anaerobic co-digestion (AcoD) has been practiced for decades to convert waste into value-added energy products, especially biogas. This study aimed to assess the potential of biogenic methane (CH4) production from the co-digestion of pretreated cotton gin trash (CGT), cow manure, and sludge. CGT contains high cellulosic content, making it a reliable feedstock for biogenic methane production. To further improve the biogas quantity and quality, the CGT was subjected to physical pretreatments, i.e., hot water (HW), ultra-sonication (US), and a combination of both (HW+US). After 91 days of AcoD, 79−110 L of biogas was produced by the treatments. Among the treatments, HW+US-pretreated CGT presented maximum biogas production capacity, at 110 L. Besides, this treatment showed the high-quality biogenic CH4 content, 52.4% of the total biogas volume, with an improved conversion rate of 0.37 L/g of volatile suspended solids consumed. In addition, this study discussed the structural changes in feedstock due to pretreatments and correlated them with the corresponding biogenic methane production. The study reports the potential of pretreated CGT conversion to CH4. It will impact the circular economy by contributing to on-farm energy requirements and reducing the financial expenditures incurred in this regard.
Record ID
Keywords
alternative energy, anaerobic co-digestion, biogas, biomethane, cotton gin trash, waste to energy
Subject
Suggested Citation
Hanif MU, Zwawi M, Algarni M, Bahadar A, Iqbal H, Capareda SC, Hanif MA, Waqas A, Hossain N, Siddiqui MTH, Nizamuddin S, Jamil A. The Effects of Using Pretreated Cotton Gin Trash on the Production of Biogas from Anaerobic Co-Digestion with Cow Manure and Sludge. (2023). LAPSE:2023.16180
Author Affiliations
Hanif MU: Institute of Environmental Science and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology, Sector H-12, Islamabad 44000, Pakistan; Bio-Energy Testing and Analysis Laboratory (BETA Lab), Biological an
Zwawi M: Department of Mechanical Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia [ORCID]
Algarni M: Department of Mechanical Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia [ORCID]
Bahadar A: Department of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia [ORCID]
Iqbal H: Institute of Environmental Science and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology, Sector H-12, Islamabad 44000, Pakistan; Rawalpindi Waste Management Company, A-81, Iran Road, Satellite Town [ORCID]
Capareda SC: Bio-Energy Testing and Analysis Laboratory (BETA Lab), Biological and Agricultural Engineering Department, Texas A & M University, College Station, TX 77843, USA [ORCID]
Hanif MA: School of Sustainability, Arizona State University, Tempe, AZ 85281, USA; School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Sector H-12, Islamabad 45710, Pakistan
Waqas A: Center for Advanced Studies in Energy, National University of Sciences and Technology, Islamabad 45710, Pakistan [ORCID]
Hossain N: School of Engineering, RMIT University, Melbourne, VIC 3001, Australia [ORCID]
Siddiqui MTH: School of Engineering, RMIT University, Melbourne, VIC 3001, Australia
Nizamuddin S: School of Engineering, RMIT University, Melbourne, VIC 3001, Australia
Jamil A: Department of Earth and Environmental Sciences, Islamabad Campus, Bahria University, Islamabad 45710, Pakistan
Zwawi M: Department of Mechanical Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia [ORCID]
Algarni M: Department of Mechanical Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia [ORCID]
Bahadar A: Department of Chemical and Materials Engineering, King Abdulaziz University, Rabigh 21911, Saudi Arabia [ORCID]
Iqbal H: Institute of Environmental Science and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology, Sector H-12, Islamabad 44000, Pakistan; Rawalpindi Waste Management Company, A-81, Iran Road, Satellite Town [ORCID]
Capareda SC: Bio-Energy Testing and Analysis Laboratory (BETA Lab), Biological and Agricultural Engineering Department, Texas A & M University, College Station, TX 77843, USA [ORCID]
Hanif MA: School of Sustainability, Arizona State University, Tempe, AZ 85281, USA; School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Sector H-12, Islamabad 45710, Pakistan
Waqas A: Center for Advanced Studies in Energy, National University of Sciences and Technology, Islamabad 45710, Pakistan [ORCID]
Hossain N: School of Engineering, RMIT University, Melbourne, VIC 3001, Australia [ORCID]
Siddiqui MTH: School of Engineering, RMIT University, Melbourne, VIC 3001, Australia
Nizamuddin S: School of Engineering, RMIT University, Melbourne, VIC 3001, Australia
Jamil A: Department of Earth and Environmental Sciences, Islamabad Campus, Bahria University, Islamabad 45710, Pakistan
Journal Name
Energies
Volume
15
Issue
2
First Page
490
Year
2022
Publication Date
2022-01-11
ISSN
1996-1073
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PII: en15020490, Publication Type: Journal Article
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LAPSE:2023.16180
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https://doi.org/10.3390/en15020490
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