International Science Index


Alternative Approach toward Waste Treatment: Biodrying for Solid Waste in Malaysia


This paper reviews the objectives, methods and results of previous studies on biodrying of solid waste in several countries. Biodrying of solid waste is a novel technology in developing countries such as in Malaysia where high moisture content in organic waste makes the segregation process for recycling purposes complicated and diminishes the calorific value for the use of fuel source. In addition, the high moisture content also encourages the breeding of vectors and disease-bearing animals. From the laboratory results, the average moisture content of organic waste, paper, plastics and metals are 58.17%, 37.93%, 29.79% and 1.03% respectively for UKM campus. Biodrying of solid waste is a simple method of waste treatment as well as a cost-efficient technology to dry the solid waste. The process depends on temperature monitoring and air flow control along with the natural biodegradable process of organic waste. This review shows that the biodrying of solid waste method has high potential in treatment and recycling of solid waste, be useful for biodrying study and implementation in Malaysia.

[1] Agumuthu P. , Fauziah S.H. 2006. MSW disposal in Malaysia: landfill management.Proceedings of the 2nd Expert Meeting on Solid Waste Management in Asia and the Pacific Islands, Kitakyushu, November 23-24, 2006.
[2] Agamuthu P., Fauziah S. H. 2006. MSW disposal in Malaysia: landfill management. Proceedings of the 2nd Expert Meeting on Solid Waste Management in Asia and the Pacific Islands, Kitakyushu, November 23-24, 2006.
[3] Mohee, R. & Mudhoo, A. 2005. Analysis of the physical properties of an in-vessel composting matrix. Power Technology 155 (1): 92-99
[4] Rada, E. C., Ragazzi, M. Panaitescu, V., 2009. MSW Bio-drying: An Alternative Way for Energy Recovery Optimizing and Landfilling Minization U. P. B. Sci. Bull., Series D, 71(4):1454-2358.
[5] Wiemer, K. & Kern, M. 1996. Mechanical-Biological Treatment of Residual Waste based on the Dry Stabilate Method. Abfall-Wirtschaft, M.I. C. Baeza-Verlag Publisher, Witzenhausen, Germany.
[6] Adani, F., Tambone, F., Genevini, P.L., Calcaterra, E. 1998. Stabilization of municipal solid waste organic fraction: a laboratory approach. Technology & Environment 4: 2-8.
[7] Adani, F., Baido, D., Calcaterra, E., Genevini, P.L. 2002. The influence of biomass temperature on biostabilization-biodrying of municipal solid waste. Bioresource Technology 83 (3) 173-179.
[8] Rada, E. C., Ragazzi, M., Panaitescui V., 2005. Municipal Solid Waste Bio - Drying: An Experimental Comparison, Executive Summary.
[9] Velis, C. A. , Longhurst, P.J. Drew, G.H., Smith R., Pollard, S.J.T. 2009. Biodrying for mechanical-biological treatment of wastes: a review of process science and engineering. Bioresource Technology. 100(11): 2747-2761.
[10] Elena Sndulescu. 2008. Technological flux of waste burning. Used oil, used tyres, hazardous waste wood waste recycling, greases. Workshop Transforming Waste Energy in Romania. RENEXPO(R). Bucharest. 2008.
[11] ATSM D5231-92. Standard Test Method for Determination of the Composition of Unprocessed Municipal Solid Waste. 2003.
[12] ASTM E 989-88, E 790-87 and E897-88. Standard Test Method for Total Moisture in a Refuse - Derived Fuel Laboratory Sample. 2003.
[13] ASTM E 711-87 Standard Test Method for Gross Calorific Value of Refuse-Derived Fuel by the Bomb Calorimeter. 2004.
[14] Sugni M., Calcaterra E. , Adani F. 2005. Biostabilization-biodrying of municipal solid waste by inverting air- flow. Bioresource Technology. 96(12): 1331-1337.
[15] Zhang D.Q., He P. J., Shao L. M., Jin T. F., Han J. Y. 2008. Biodrying of municipal solid waaste with high water content by combined hydrolytic aerobic technology. Journal of Environmental Science. 20(2008): 1534-1540.
[16] Zawadzka, A., Krzystek, L. & Ledakowicz, S. 2009. Autothermal Drying of Organic Fraction of Municipal Solid Waste. Environment Protection Engineering. 35(3).