EFFECT OF AIRFLOW ON MOISTURE REMOVAL OF ROTARY BIODRYING REACTORS
DOI:
https://doi.org/10.11113/jt.v78.8638Keywords:
MSW, rotary biodrying reactor, water removal, air flow rate, hydrolytic stageAbstract
Biodrying is the process to reduce moisture from municipal solid waste (MSW) by using the heat from aerobic bio-degradation. The typical process parameters are aeration, temperature during the process, initial moisture of waste, and temperature and relative humidity of the inlet air. This study aimed to investigate the effects of air flow rate and the supplied direct airflow duration on the rotary biodrying process for drying the high initial moisture content households solid waste, allowing satisfied energy content biofuel. The MSW from the Karai subdistric, kratumban samutsakorn province were used as a substrate. Biodrying process was performed in 8 trails with various air volumes from 0.20 to 0.45 m3/hr.-kg dry weight (dw). It was found that the increased airflow rate was not linearly proportional to the weight loss. The hydrolytic stage period (2 days) before supplied high air flow in aerobic stage could more increase moisture removal efficiency for rotary biodrying than increase double air flow rate only. The end product was sufficiently homogeneous and heating values 18,024 – 24,260 kJ/kg.Â
References
Adani, F., Baido, D., Calcaterra, E., Genevini, P. 2002. The Influence Of Biomass Temperature On Stabilization-Biodrying Of Municipal Solid Waste. Bioresource Technology. 83(3): 173-179.
Bartha, B. K. 2008. Entwicklung Einer Steuerungsstrategie Für Die Biologische Abfallbehandlung Im Dynamischen Reaktor (In German)|[Development Of A Control Strategy For The Treatment Of Biological Waste In A Dynamic Reactor]. PhD Thesis, Technische Universität Dresden. 265.
Colomer-Mendoza, F. J., Herrera-Prats, L., Robles-Martinez, F., Gallardo-Izquierdo, A., Pina-Guzman, A. B. 2013. Effect Of Air Flow On Biodrying Of Gardening Wastes In Reactors. Journal of Environmental Sciences (China). 25(5): 865-872.
Jolanun, B. 1., Tripetchkul, S., Chiemchaisri, C., Chaiprasert, P., Towprayoon, S. 2005. Effect Of Moisture Content On Fed Batch Composting Reactor Of Vegetable And Fruit Wastes. Environ Technol. 26(3): 293-301.
Nabam Rich, Ajay Bharti. 2015. Assessment Of Different Types Of In-Vessel Composters And Its Effect On Stabilization Of MSW Compost. International Research Journal of Engineering and Technology (IRJET). 02(03): 37-42.
Navaee-Ardeh, S., Bertrand, F., Stuar, P. R. 2010. Key Variables Analysis Of A Novel Continuous Biodrying Process For Drying Mixed Sludge. Bioresource Technology. 101(10): 3379-3387.
Rada, E. C., Ragazzi, M., Panaitescu, V. 2009. MSW Bio-Drying: An Alternative Way For Energy Recovery Optimization And Landfilling Minimization. UPB Scientific Bulletin, Series D: Mech.Eng. 71: 113-120.
Sadaka, S., Van Devender, K., Costello, T., Sharara, M. 2010. Composting For Biodrying Organic Materials. FSA1055. University of Arkansas Division of Agriculture. http://www.uaex.edu/Other_Areas/publications/PDF/Consulted07/11/2011.
Shao, L. M., Ma, Z. H., Zhang, H., Zhang, D. Q., He, P. H. 2010. Bio-Drying And Size Sorting Of Municipal Solid Waste With High Water Content For Improving Energy Recovery. Waste Management. 30(7): 1165-1170.
Skourides, I., Theophilou, C., Loizides, M., Hood, P., Smith, S. R., 2006. Optimisation Of Advanced Technology For Production Of Consistent Auxiliary Fuels From Biodegradable Municipal Waste For Industrial Purposes. Waste 2006-41 Sustainable Waste And Resource Management. Stratford-upon-Avon, UK 19-21 September 2006. 2B-14.40.
Sugni, M., Calcaterra, E., Adani, F., 2005. Biostabilization Biodry-Ing Of Municipal Solid Waste By Inverting Air-Flow. Bioresource Technology. 96: 1331e1337.
Velis, C. A., Longhurst, P. J., Drew, G. H., Smith, R., Pollard, S. T. J. 2009. Biodrying For Mechanical-Biological Treatment Of Wastes: A Review Of Process Science And Engineering. Bioresource Technology. 100(11): 2747-2761.
Zawadzka, A., Krzystek, L., Ledakowicz, S. 2010. Autothermal Biodrying Of Municipal Solid Waste With High Moisture Content. Chemical Papers. 64(2): 265-268.
Zhang, D. Q., He, P. J., Shao, L. M., Jin, T. F., Han, J. Y. 2008. Biodrying Of Municipal Solid Waste With High Water Content By Combined Hydrolytic-Aerobic Technology. Journal of Environmental Sciences. 20(12): 1534-1540.
Zhang, D. Q., He, P. J., Yu, L. Z., Shao, L. M. 2009. Effect Of Inoculation Time On The Bio-Drying Performance Of Combined Hydrolytic Aerobic Process. Bioresource Technology. 100(3): 1087-1093.
Zhao, L., Gu, W. M., He, P. J., Shao, L. M. 2010. Effect Of Air-Flow Rate And Turning Frequency On Bio-Drying Of Dewatered Sludge. Water Research. 44(20): 6144-6152.
Moss. Abington Heights High School Biology. [Online]. From: http://www.ahsd.org/science/moss/Microbiology/Study%20guides/Ch06_Micro8eStudyGuide.pdf. [Accessed on 2013].
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