Chemistry of iron (Fe) in Acid Mine Drainage (AMD) and AMD-Contaminated surface water

Ho, Stella Yen Ling (2005) Chemistry of iron (Fe) in Acid Mine Drainage (AMD) and AMD-Contaminated surface water. Universiti Malaysia Sabah. (Unpublished)

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Abstract

The concentrations of Total Fe (FeT) and distribution of Fe² + and Fe³+ in selected AMD and AMD-contaminated river water samples from Ranau, Sabah were determined according to the standard method for the examination of water and wastewater. The pH and Eh values of these samples were also analyzed. The results obtained showed that FeT in all AMD samples were relatively high in the range of 0.29-11.90 mg/L and comprising of 64.5% Fe(III) and 35.5% Fe(II). FeT and Fe(JII) were generally high at low pH (i.e. pH<4) and oxidizing (Eh>545m V) condition whereas Fe(D) was significant at lower Eh (i.e <545mV). The river water samples were less acidic (i.e. pH>4), and therefore, comparatively low in FeT at 0.16 mg/L-0.25 mg/L with only Fe(Ill) present as the dominant species. These results indicate that the distribution of Fe(III) and Fe(ll) species and subsequently the concentration of FeT in the AMD and AMD-contaminated river water samples was strongly influenced by the prevailing pH and Eh.

Item Type: Academic Exercise
Uncontrolled Keywords: Acid Mine Drainage, Iron, River water, Water analysis, Waste-water, Ranau, Sabah
Subjects: ?? TD895-899 ??
Divisions: SCHOOL > School of Science and Technology
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 05 Dec 2011 08:19
Last Modified: 12 Oct 2017 03:26
URI: http://eprints.ums.edu.my/id/eprint/594

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