Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying
Biodrying technology is commonly used in Thailand to produce refuse-derived fuel (RDF), however, this technology remains ineffective on high-moisture waste. Air supply is key to ensuring homogenous temperature development within the waste matrix during biodrying, increasing RDF quality. This study i...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Diponegoro University
2022-08-01
|
| Series: | International Journal of Renewable Energy Development |
| Subjects: | |
| Online Access: | https://ijred.cbiore.id/index.php/ijred/article/view/45143 |
| _version_ | 1797449762589376512 |
|---|---|
| author | Panida Payomthip Sirintornthep Towprayoon Chart Chiemchaisri Suthum Patumsawad Komsilp Wangyao |
| author_facet | Panida Payomthip Sirintornthep Towprayoon Chart Chiemchaisri Suthum Patumsawad Komsilp Wangyao |
| author_sort | Panida Payomthip |
| collection | DOAJ |
| description | Biodrying technology is commonly used in Thailand to produce refuse-derived fuel (RDF), however, this technology remains ineffective on high-moisture waste. Air supply is key to ensuring homogenous temperature development within the waste matrix during biodrying, increasing RDF quality. This study investigated negative aeration during local municipal solid waste biodrying to meet RDF standards in reduced time. Lysimeter experiments were performed on pre-shredded waste (300 kg/m3) using different aeration patterns. The temperature, vent gas oxygen level, weight loss, and leachate volume during the biodrying process were monitored. In addition, the treated waste’s temperature, moisture, and heating values were evaluated to determine the biodrying process efficiency. The results indicate that shorter heating phases can be achieved during continuous aeration. No significant temperature variation was observed in the waste layers, with a low standard deviation of 1.96% during constant air supply, indicating homogeneous temperature development during the biodrying process. The vent gas contained 15–20% oxygen and non-detectable methane, evidencing sufficient air supply. The total heat development was independent of aeration pattern; therefore, biodrying was unaffected by excess air supply at a 95% confidence level. The highest weight loss and moisture content reduction were 25% and 66%, respectively. The optimal aeration was continuous mode with non-excessive aeration, increasing the lower heating value from 2,884.0 to 4,938.0 kCal/kg, and reducing the moisture content from 48.5% to 22.2%. RDF quality can be improved 1.7 times to meet Thailand’s standards within a short biodrying period of 7 days using homogeneous temperature distribution operated under continuous aeration |
| first_indexed | 2024-03-09T14:30:41Z |
| format | Article |
| id | doaj.art-5f2b5f0bc0734a8da82d1e4891ade911 |
| institution | Directory Open Access Journal |
| issn | 2252-4940 |
| language | English |
| last_indexed | 2024-03-09T14:30:41Z |
| publishDate | 2022-08-01 |
| publisher | Diponegoro University |
| record_format | Article |
| series | International Journal of Renewable Energy Development |
| spelling | doaj.art-5f2b5f0bc0734a8da82d1e4891ade9112023-11-28T02:08:37ZengDiponegoro UniversityInternational Journal of Renewable Energy Development2252-49402022-08-0111387888810.14710/ijred.2022.4514320595Optimization of Aeration for Accelerating Municipal Solid Waste BiodryingPanida Payomthip0Sirintornthep Towprayoon1https://orcid.org/0000-0002-1964-1065Chart Chiemchaisri2https://orcid.org/0000-0003-0078-563XSuthum Patumsawad3https://orcid.org/0000-0003-0669-443XKomsilp Wangyao4https://orcid.org/0000-0003-2626-4920The Joint Graduate School of Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Bangkok, ThailandThe Joint Graduate School of Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Bangkok, ThailandDepartment of Environmental Engineering, Faculty of Engineering, Kasetsart University, Bangkok, ThailandDepartment of Mechanical and Aerospace Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, ThailandThe Joint Graduate School of Energy and Environment (JGSEE), King Mongkut's University of Technology Thonburi, Bangkok, ThailandBiodrying technology is commonly used in Thailand to produce refuse-derived fuel (RDF), however, this technology remains ineffective on high-moisture waste. Air supply is key to ensuring homogenous temperature development within the waste matrix during biodrying, increasing RDF quality. This study investigated negative aeration during local municipal solid waste biodrying to meet RDF standards in reduced time. Lysimeter experiments were performed on pre-shredded waste (300 kg/m3) using different aeration patterns. The temperature, vent gas oxygen level, weight loss, and leachate volume during the biodrying process were monitored. In addition, the treated waste’s temperature, moisture, and heating values were evaluated to determine the biodrying process efficiency. The results indicate that shorter heating phases can be achieved during continuous aeration. No significant temperature variation was observed in the waste layers, with a low standard deviation of 1.96% during constant air supply, indicating homogeneous temperature development during the biodrying process. The vent gas contained 15–20% oxygen and non-detectable methane, evidencing sufficient air supply. The total heat development was independent of aeration pattern; therefore, biodrying was unaffected by excess air supply at a 95% confidence level. The highest weight loss and moisture content reduction were 25% and 66%, respectively. The optimal aeration was continuous mode with non-excessive aeration, increasing the lower heating value from 2,884.0 to 4,938.0 kCal/kg, and reducing the moisture content from 48.5% to 22.2%. RDF quality can be improved 1.7 times to meet Thailand’s standards within a short biodrying period of 7 days using homogeneous temperature distribution operated under continuous aerationhttps://ijred.cbiore.id/index.php/ijred/article/view/45143biodryingmechanical biological treatmentmunicipal solid wastenegative aerationrefuse-derived fuel |
| spellingShingle | Panida Payomthip Sirintornthep Towprayoon Chart Chiemchaisri Suthum Patumsawad Komsilp Wangyao Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying International Journal of Renewable Energy Development biodrying mechanical biological treatment municipal solid waste negative aeration refuse-derived fuel |
| title | Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying |
| title_full | Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying |
| title_fullStr | Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying |
| title_full_unstemmed | Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying |
| title_short | Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying |
| title_sort | optimization of aeration for accelerating municipal solid waste biodrying |
| topic | biodrying mechanical biological treatment municipal solid waste negative aeration refuse-derived fuel |
| url | https://ijred.cbiore.id/index.php/ijred/article/view/45143 |
| work_keys_str_mv | AT panidapayomthip optimizationofaerationforacceleratingmunicipalsolidwastebiodrying AT sirintorntheptowprayoon optimizationofaerationforacceleratingmunicipalsolidwastebiodrying AT chartchiemchaisri optimizationofaerationforacceleratingmunicipalsolidwastebiodrying AT suthumpatumsawad optimizationofaerationforacceleratingmunicipalsolidwastebiodrying AT komsilpwangyao optimizationofaerationforacceleratingmunicipalsolidwastebiodrying |