Optimizing Aeration for Enhancing Biodrying Efficacy of Municipal Solid Waste in Tropical Climate Condition
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Abstract
This study investigated the influence of aeration and its optimum operation for the biodrying of municipal solid waste (MSW). A series of lysimeter experiments were conducted to determine MSW's moisture content, temperature, and gas emissions during its biodrying treatment at different aeration rates over 14 days. Results indicated that low-to-moderate aeration rates of 0.3-0.5 L/min facilitated a balance between water evaporation by heat generated from biological activities and advective removal of evaporated water from the waste matrix. In contrast, higher aeration rates primarily relied on physical drying, resulting in rapid initial moisture loss but potentially inhibiting microbial activities. The optimal aeration was determined at 0.3 L/min, achieving a minimum low heating value (LHV) of 11.4 MJ/kg and reducing the moisture content to less than 30% within 7 days. These findings suggest that optimizing aeration rates can significantly enhance the efficiency of the biodrying of MSW in tropical climate condition. The data from this study could be used to promote sustainable waste management practices in regions with similar climatic and waste composition characteristics as Thailand.
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Afifa., Arshad, K., Hussain, N., Ashraf, M. H. and Saleem, M. Z. 2024. Air pollution and climate change as grand challenges to sustainability. Sci Tot Environ. 928: 172370.
Pollution Control Department. 2023. Thailand State of Pollution Report 2023, Pollution Control Department, Ministry of Natural Resources and Environment, Thailand. Retrieved from https://www.pcd.go.th/ebook/book18/PCD%202024.html. Access: October 20, 2024.
Myhre, G., D. Shindell, F.‐M. Bréon., et. al. 2013. Anthropogenic and Natural Radiative Forcing. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.‐K. Plattner., et al (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.
Pollution Control Department. 2024. Food Waste Management Roadmap (2023-2030) and Food Waste Management Action Plan (2023-2027), Pollution Control Department, Ministry of Natural Resources and Environment, Thailand. Retrieved from https://www.pcd.go.th/garbage/. Access: October 15, 2024.
United Nations Environment Programme. 2024. Food Waste Index Report 2024 Think Eat Save: Tracking Progress to Halve Global Food Waste. Retrieved from https://wedocs.unep.org/20.500.11822/45230. Access: November 10, 2024.
Office of Natural Resources and Environmental Policy and Planning. 2022. Thailand’s Long-Term Low Greenhouse Gas Emission Development Strategy (Revise Version), Climate Change Management and Coordination Division, Ministry of Natural Resources and Environment, Thailand. Retrieved from https://unfccc.int/sites/default/files/resource/Thailand%20LT-LEDS%20%28Revised%20Version%29_08Nov2022.pdf. Access: November 5, 2024.
Wang, K., Wang, Y.Y., Chen, T.B., Zheng, G.D., Cao, M.K. and Cai, L. 2020a. Adding a recyclable amendment to facilitate sewage sludge biodrying and reduce costs. Chemosphere. 256: 127009.
Cao, M. K., Guo, H. T., Zheng, G. D., Chen, T. B. and Cai, L. 2021. Microbial succession and degradation during kitchen waste biodrying, highlighting the thermophilic phase. Bioresour. Technol. 326: 124762.
Payomthip, P., Towprayoon, S., Chiemchaisri, C., Patumsawad, S. and Wangyao, K. 2020. Effect of Intermittent Negative Ventilation in Biodrying Process for Treating Pre-Shredded Waste. In: IOP Conference Series: Earth and Environmental Science. 581(1).
Lu, J. and Xu, S. 2021. Post-treatment of food waste digestate towards land application: a review. J. Clean. Prod. 303: 127033.
Yuan, J., Li, Y., Zhang, H., et. al. 2018. Effects of adding bulking agents on the biodrying of kitchen waste and the odor emissions produced. J. Environ. Sci. 67: 344-355.
Payomthip, P., Towprayoon, S., Chiemchaisri, C., Patumsawad, S. and Wangyao, K. 2022. Optimization of Aeration for Accelerating Municipal Solid Waste Biodrying. Int J Renew Energy Dev. 11: 878-888.
Sutthasil, N., Ishigaki, T., Ochiai, S., Chiemchaisri, C. and Yamada, M. Greenhouse Gas Emissions Reduction from Biodrying MBT in Tropical Climate. At The 29th Annual Conference of Japan Society of Material Cycles and Waste Management on September 12-14, 2018.
Bhatsada, A., Patumsawad, S., Itsarathorn, T., et. al. 2023. Improvement of energy recovery potential of wet-refuse-derived fuel through bio-drying process. J Mater Cycles Waste Manag. 25: 637-649.
Bhatsada, A., Patumsawad, S., Towprayoon, S., Chiemchaisri, C., Phongphiphat, A. and Wangyao, K. 2023. Modification of the Aeration-Supplied Configuration in the Biodrying Process for Refuse-Derived Fuel (RDF) Production. Energies (Basel). 16(7): 3235.
Itsarathorn, T., Towprayoon, S., Chiemchaisri, C., Patumsawad, S., Wangyao, K. and Phongphipat, A. The Situation of RDF Utilization in the Cement Industry in Thailand. At The International Conference and Utility Exhibition 2022 (ICUE2022) on Energy, Environment and Climate Change, Thailand on October 26-28, 2022.
Ngamket, K., Wangyao, K., Patumsawad, S., Chaiwiwatworakul, P. and Towprayoon, S. 2021. Quality improvement of mixed MSW drying using a pilot-scale solar greenhouse biodrying system. J Mater Cycles Waste Manag. 23: 436-448.
Itsarathorn, T., Towprayoon, S., Chiemchaisri, C., et al. 2023. The effect of aeration rate and feedstock density on biodrying performance for wet refuse-derived fuel quality improvement. Int J Renew Energy Dev. 12: 1091-1103.
Wahyanti, E., Bhatsada, A., Towprayoon, S., Sutthasil, N., Patumsawad, S. and Wangyao, K. 2024. Impact of Feedstock Density on Biodrying for Enhancing Heat Retention and Moisture Reduction. Thai Environ Eng J. 38(2): 35-46.
Sutthasil, N., Ishigaki, T., Ochiai, S., Yamada, M. and Chiemchaisri C. 2023. Carbon conversion during biodrying of municipal solid waste generated under tropical Asian conditions. Biomass Convers Biorefin. 13: 16791-16805.
Lai, JC., Then, YL., Hwang, SS. and Lee, CS. 2024. Optimal aeration management strategy for a small-scale food waste composting. Carbon Resour Convers: 7(1). 100190.
Zhang, D., Xu, Z., Wang, G., Huda, N., Li, G. and Luo, W. 2020. Insights into characteristics of organic matter during co-biodrying of sewage sludge and kitchen waste under different aeration intensities. Environ Technol Inno. 20: 101117.
Feltrim, F., Izzo, R. L. S., Rose, J. L., Machado, A. B. and Oro, S. R. 2021. Evaluation of the bio-drying process of municipal solid waste using rotating drums bio-drying rotary drum. Ana Acad Bras Cienc, 93(4).