Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study
This study investigates the optimization of aeration rates for the biodrying of market waste using negative-pressure ventilation. Market waste, characterized by a high moisture content (MC) and rapid decomposition, presents challenges in waste management. Over 12 days, three aeration rates (ARs) of...
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MDPI AG
2024-11-01
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| Series: | Clean Technologies |
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| author | Ye Nyi Nyi Lwin Abhisit Bhatsada Sirintornthep Towprayoon Suthum Patumsawad Noppharit Sutthasil Komsilp Wangyao |
| author_facet | Ye Nyi Nyi Lwin Abhisit Bhatsada Sirintornthep Towprayoon Suthum Patumsawad Noppharit Sutthasil Komsilp Wangyao |
| author_sort | Ye Nyi Nyi Lwin |
| collection | DOAJ |
| description | This study investigates the optimization of aeration rates for the biodrying of market waste using negative-pressure ventilation. Market waste, characterized by a high moisture content (MC) and rapid decomposition, presents challenges in waste management. Over 12 days, three aeration rates (ARs) of 0.2, 0.4, and 0.6 m<sup>3</sup>/kg/day were examined, and the most effective continuous ventilation configuration was identified in terms of heat generation, moisture reduction, and biodrying efficiency. The results indicate that the most effective AR for heat retention and moisture removal was 0.2 m<sup>3</sup>/kg/day, achieving a 6.63% MC reduction and a 9.12% low heating value (LHV) increase. Gas analysis showed that, while AR 0.2 supported high microbial activity during the initial 7 days, AR 0.6 sustained higher overall CO<sub>2</sub> production due to its greater aeration rate. The findings also suggest that the biodrying of market waste with a high initial MC can achieve significant weight loss and leachate generation when paired with a high aeration rate of 0.6 m<sup>3</sup>/kg/day, with a 69.8% weight loss and increased waste compaction being recorded. The study suggests that variable ARs can optimize biodrying, making market waste more suitable for conversion to refuse-derived fuel or landfill pre-treatment and improving waste-to-energy processes and sustainability. |
| format | Article |
| id | doaj-art-92f0e079ee9042e693f69ba25de9c8d5 |
| institution | Kabale University |
| issn | 2571-8797 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Clean Technologies |
| spelling | doaj-art-92f0e079ee9042e693f69ba25de9c8d52024-12-27T14:18:28ZengMDPI AGClean Technologies2571-87972024-11-01641519153610.3390/cleantechnol6040073Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter StudyYe Nyi Nyi Lwin0Abhisit Bhatsada1Sirintornthep Towprayoon2Suthum Patumsawad3Noppharit Sutthasil4Komsilp Wangyao5The Joint Graduate School of Energy and Environment (JGSEE), King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandThe Joint Graduate School of Energy and Environment (JGSEE), King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandThe Joint Graduate School of Energy and Environment (JGSEE), King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandDepartment Mechanical and Aerospace Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, ThailandDepartment of Environmental Health, School of Health Science, Mae Fah Luang University, Chiang Rai 57100, ThailandThe Joint Graduate School of Energy and Environment (JGSEE), King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandThis study investigates the optimization of aeration rates for the biodrying of market waste using negative-pressure ventilation. Market waste, characterized by a high moisture content (MC) and rapid decomposition, presents challenges in waste management. Over 12 days, three aeration rates (ARs) of 0.2, 0.4, and 0.6 m<sup>3</sup>/kg/day were examined, and the most effective continuous ventilation configuration was identified in terms of heat generation, moisture reduction, and biodrying efficiency. The results indicate that the most effective AR for heat retention and moisture removal was 0.2 m<sup>3</sup>/kg/day, achieving a 6.63% MC reduction and a 9.12% low heating value (LHV) increase. Gas analysis showed that, while AR 0.2 supported high microbial activity during the initial 7 days, AR 0.6 sustained higher overall CO<sub>2</sub> production due to its greater aeration rate. The findings also suggest that the biodrying of market waste with a high initial MC can achieve significant weight loss and leachate generation when paired with a high aeration rate of 0.6 m<sup>3</sup>/kg/day, with a 69.8% weight loss and increased waste compaction being recorded. The study suggests that variable ARs can optimize biodrying, making market waste more suitable for conversion to refuse-derived fuel or landfill pre-treatment and improving waste-to-energy processes and sustainability.https://www.mdpi.com/2571-8797/6/4/73negative-pressure ventilationmoisture-content reductionthermal efficiencybiodryingwaste management |
| spellingShingle | Ye Nyi Nyi Lwin Abhisit Bhatsada Sirintornthep Towprayoon Suthum Patumsawad Noppharit Sutthasil Komsilp Wangyao Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study Clean Technologies negative-pressure ventilation moisture-content reduction thermal efficiency biodrying waste management |
| title | Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study |
| title_full | Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study |
| title_fullStr | Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study |
| title_full_unstemmed | Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study |
| title_short | Aeration Optimization for the Biodrying of Market Waste Using Negative Ventilation: A Lysimeter Study |
| title_sort | aeration optimization for the biodrying of market waste using negative ventilation a lysimeter study |
| topic | negative-pressure ventilation moisture-content reduction thermal efficiency biodrying waste management |
| url | https://www.mdpi.com/2571-8797/6/4/73 |
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