Civil Engineering and Architecture Vol. 2(1), pp. 52 - 56
DOI: 10.13189/cea.2014.020106
Reprint (PDF) (271Kb)

Seasonal Effects on Heavy Metal Concentration in Decomposed Solid Waste of DNCC and DSCC Landfill Sites

M. A. Hoque ¹, M. Aminul Haque ^1,2,*, M. S. A. Mondal ^3
1 Department of Civil and Environmental Engineering, Shahjalal University of Science and Technology, Sylhet, Bangladesh
² Department of Civil Engineering, Leading University, Sylhet, Bangladesh
³ Japan International Cooperation Agency Expert Team, Dhaka North and South City Corporation, Bangladesh

ABSTRACT

To assess the seasonal variation of heavy metals (such as Fe, Cu, Cd, Ni and Cr) concentration in decomposed waste, converted soil and leachate the samples were collected from Matuail and Aminbazar landfill sites of Dhaka North City Corporation (DNCC) and Dhaka South City Corporation (DSCC) respectively and were analyzed for summer (dry season) and monsoon (wet season) periods. Significant variations in the concentrations of heavy metals for two seasons were noted at both landfill sites. This study reveals that the heavy metal concentrations in the decomposed waste and converted soil are higher in the summer as compared to that in the monsoon. In the case of leachate samples, lower concentrations of heavy metals were observed during the summer season whereas the average concentrations of Fe, Cu, and Ni during the monsoon were found as high as 25.3 mg/l, 1.5 mg/l, 4.46 mg/l (at Matuail landfill site) and 14.71 mg/l, 1.14 mg/l, 2.32 mg/l (at Aminbazar landfill site) respectively, exceeding Bangladesh standards for inland surface water. The outcome of this study gives the leaching behavior of heavy metals with seasonal variations and indicates the necessity of solid waste stabilization for heavy metal immobilization within the solidified matrix bond and re-use of solidified/stabilized products for sustainable solid waste management.

KEYWORDS
Decomposed Solid Waste, Landfill Site, Heavy metal, Leachate, Monsoon and Summer

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] M. A. Hoque , M. Aminul Haque , M. S. A. Mondal , "Seasonal Effects on Heavy Metal Concentration in Decomposed Solid Waste of DNCC and DSCC Landfill Sites," Civil Engineering and Architecture, Vol. 2, No. 1, pp. 52 - 56, 2014. DOI: 10.13189/cea.2014.020106.

(b). APA Format:
M. A. Hoque , M. Aminul Haque , M. S. A. Mondal (2014). Seasonal Effects on Heavy Metal Concentration in Decomposed Solid Waste of DNCC and DSCC Landfill Sites. Civil Engineering and Architecture, 2(1), 52 - 56. DOI: 10.13189/cea.2014.020106.