Tag Archives: anaerobic digestions

540–552 H. Roubík, J. Mazancová,, L.D. Phung and D.V. Dung
Quantification of biogas potential from livestock waste in Vietnam
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Quantification of biogas potential from livestock waste in Vietnam

H. Roubík¹, J. Mazancová¹,*, L.D. Phung² and D.V. Dung²

¹ Czech University of Life Sciences Prague, Faculty of Tropical AgriSciences, Department of Sustainable Technologies, Kamýcká 129, CZ165 00 Prague, Czech Republic
² Hue University of Agriculture and Forestry, Hue University, 102 Phung Hung, Hue city, Thua Thien Hue, Vietnam
*Corresponding author: mazan@ftz.czu.cz

Abstract:

Quantification of biogas potential in Vietnam is highly needed to provide sufficient information for authorities properly support their future policy decisions. To achieve the aim of this investigation, two methods were applied: (i) the method for calculation of the amount of manure and its biogas potential from chosen livestock obtained from statistical data and (ii) the method for future forecast using middle scenario applications based on previous development of specific category, presuming homogenous continuation of growth. The total biogas energy potential in Vietnam was quantified to approximate 120,000 T Jy-1 in 2015 and has the potential of increasing to 127,000 TJ y-1 by 2020. However, when considering current manure management practices (including accessibility factor and collection efficiency) biogas potential was quantified to the values of almost 67,000 T Jy-1 in 2015 and over 71,000 T Jy-1 by 2020 if the current manure management practices remain unchanged. Biogas has the potential of generating renewable energy, while meeting requirements related to waste treatment and minimizing environmental impacts. This study shows that animal waste is a promising sustainable energy source in Vietnam which can be efficiently utilized for the generation of biogas energy as well as electricity. Furthermore, anaerobic digestion of livestock waste has the potential to play a vital role in farming systems by adding value to agricultural waste and livestock excreta, and reducing their presence in the environment therefore enhancing public health. There is a high development potential for the decentralized energy generation due to the exploitation of small-scale biogas plants in Vietnam. However, it is essential to realize that competition to other energy generating technologies is present.

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