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Title: Acid Rock Drainage Dissolved Trace Metals And Effects On Water Quality In Mining Areas: A Case Study At Golden Star Wassa Mines, Hwini-Butre Benso Project, Western Region Ghana.
Authors: Appiah, Emmanuel Ankomah
Issue Date: 13-Jun-2011
Abstract: Mining and industrial activities are among the main sources of acid rock dissolved metal contamination in the environment. Fifteen surface, ground and pit water sources were used in assessing the effect acid rock drainage dissolve trace metals in drinking water samples in Golden Star Wassa-Benso mining area. Some physicochemical and some heavy metals which are major ARD precursors released from mined and mineralized areas into receiving streams, rivers, pit and ground water were measured. All the samples had pH state near neutral, suggesting low oxidation potentials which gave low metal concentrations in all the samples.NO3- concentration in the pit water was extremely high above the EPA Ghana effluent quality guideline for natural water but those recorded in ground and surface water samples were far below the EPA Ghana guideline for drinking water. No significant difference was noted in the observed temperature pH, EC and TSS ranges for each set of water samples but there was significant variation in these parameters from the different water bodies (p < 0.05). The concentrations of sulphate recorded in the water samples were below the WHO levels of 250 mg/L for drinking water. In general, all the physico-chemical parameter and heavy metals measured recorded values that were below WHO and Ghanaian EPA guidelines. This implies that water sources within the study area have not been significantly affected by dissolution of minerals. However there is the possibility that smaller quantities of these mine contaminants may accumulate with time, reach water sources and pollute them in the future.
Description: A Thesis submitted to the Department of Environmental Science, Kwame Nkrumah University of Science and Technology, in partial fulfillment of the requirements for the degree of Master of Science (Environmental Science), 2011
URI: http://hdl.handle.net/123456789/3912
Appears in Collections:College of Science

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