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UPSI Digital Repository (UDRep)
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| Abstract : Universiti Pendidikan Sultan Idris |
| Reagent grade of calcium and magnesium hydroxides were used in this study to treat acid mine drainage (AMD)sample. AMD sample was collected from a tin tailing pond that located in Pengkalan Hulu, Perakwhich as pHaround 2.87± 0.01. pH values had increased after treated with calcium hydroxide (Ca(OH)2) and magnesium hydroxide (Mg(OH)2), respectively. The maximum pHvalues obtained was 11.35± 0.01by using 1.0 g of Ca(OH)2at interval time 5 min. ForMg(OH)2, the highest pHvalue can be obtainedwas 7.22 ± 0.01 by using 1.0 g at interval time 30 min. The concentration of heavy metals such as aluminum, copper, iron, manganese, nickel and zinc were reduced after reaction withboth materials.For examplesaluminum concentration was reduced from 110.33 mg/L to 2.80 mg/L and 0.01 mg/L by using 1.0 g of Ca(OH)2and Mg(OH)2, respectively. |
| References |
[1]K.H. Buchel, H. H. Moretto and P. Woditsch, Industrial Inorganic Chemistry(Wiley-VCH, German, 1998)p.230. [2]J.A.H. Oates, Lime and Limestone; Chemistry and Technology, Production and Uses(Wiley-VCH, German, 1998). [3]H.R. Wenk and A. Bulakh, Minerals theirs Constitution and Origins(Cambridge University Press, UK, 2012)p.422. [4]G.S. Simate and S. Ndlovu, J. Environ. Chem. Eng. 2, 1785-1803 (2014). [5]D.B. Johnson, Water Air Soil Pollut.: Focus 3, 47–66 (2003). [6]A. Akcil and S. Koldas, J. Clean. Product. 14, 1139–1145 (2006) [7]V. Masindi, V. Akinwekomi, J.P. Maree and K.L. Muedi, J. Environ. Chem. Eng. 5, 3903–3913 (2017) [8]K. K. Kefeni,T. A.M. Msagati and B. B. Mamba, J. Clean. Product. 151, 475–493 (2017) [9]S. Heviánková,I. Bestovaand M. Kyncl,Minerals Eng. 56,109–111(2014) [10]P. Eger, G. Melchert, D. Antonson and J. Wagner, in An Ecological Approach to Mined Land Reclamation:Proceeedings America Society of Mining and Reclamation, Spokane, Washington, 16 May-19 May 1993, edited by B.A. Zamora and R.E. Connolly (American Society for Surface Mining and Reclamation, USA, 1993), pp. 204-217. [11]Environmental Quality Act 1974 (Act 127), Regulations, Rules & Orders. (International Law Book Services, Selangor,2015) p.422. |
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