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Bui Xuan Thanh
Faculty of Environment, Ho Chi Minh City University of Technology (HCMUT)
Computer Science & IT Other

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Journal : Waste Technology

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Challenges for municipal solid waste management practices in Vietnam Nguyen Duc Luong; Hoang Minh Giang; Bui Xuan Thanh; Nguyen The Hung
Waste Technology Vol 1, No 1 (2013)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.361 KB) | DOI: 10.14710/1.1.17-21

Abstract

Municipal solid waste (MSW) management is currently one of the major environmental problems facing by Vietnam. Improper management of MSW has caused adverse impacts on the environment, community health, and social-economic development. This study attempts to provide a review of the generation and characterization, disposal and treatment technologies of MSW to evaluate the current status and identify the problems of MSW management practices in Vietnam. Finally, this study is concluded with fruitful recommendations which may be useful in encouraging the responsible agencies to work towards the further improvement of the existing MSW management system.Doi: http://dx.doi.org/10.12777/wastech.1.1.17-21Citation:  Luong, N.D., Giang, H.M., Thanh, B.X. and Hung, N.T.  2013. Challenges for municipal solid waste management practices in Vietnam. Waste Technology 1(1):6-9.Doi: http://dx.doi.org/10.12777/wastech.1.1.17-21
Biodiesel Production from Microalgae by Extraction – Transesterification Method Nguyen Thi Phuong Thao; Nguyen Thanh Tin; Bui Xuan Thanh
Waste Technology Vol 1, No 1 (2013)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.488 KB) | DOI: 10.14710/1.1.6-9

Abstract

The environmental impact of using petroleum fuels has led to a quest to find a suitable alternative fuel source. In this study, microalgae were explored as a highly potential feedstock to produce biodiesel fuel. Firstly, algal oil is extracted from algal biomass by using organic solvents (n–hexan).  Lipid is contained in microalgae up to 60% of their weight. Then, Biodiesel is created through a chemical reaction known as transesterification between algal oil and alcohol (methanol) with strong acid (such as H2SO4) as the catalyst. The extraction – transesterification method resulted in a high biodiesel yield (10 % of algal biomass) and high FAMEs content (5.2 % of algal biomass). Biodiesel production from microalgae was studied through experimental investigation of transesterification conditions such as reaction time, methanol to oil ration and catalyst dosage which are deemed to have main impact on reaction conversion efficiency. All the parameters which were characterized for purified biodiesel such as free glycerin, total glycerin, flash point, sulfur content were analyzed according to ASTM standardDoi: http://dx.doi.org/10.12777/wastech.1.1.6-9Citation:  Thao, N.T.P., Tin, N.T., and Thanh, B.X. 2013. Biodiesel Production from Microalgae by Extraction – Transesterification Method. Waste Technology 1(1):6-9. Doi: http://dx.doi.org/10.12777/wastech.1.1.6-9
Co-Authors Hoang Minh Giang Nguyen Duc Luong Nguyen Thanh Tin Nguyen The Hung Nguyen Thi Phuong Thao