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Vitenu-Sackey Prince Asare Acheampong Theophilus 《Environmental science and pollution research international》2022,29(58):87426-87445
Environmental Science and Pollution Research - This study examines the impact of economic policy uncertainty (EPU) and ecological innovation on carbon (CO2) emissions in a panel of 18... 相似文献
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Mike A. Acheampong Kannan Paksirajan Piet N. L. Lens 《Environmental science and pollution research international》2013,20(6):3799-3811
The physical and chemical qualities of the process effluent and the tailings dam wastewater of AngloGold-Ashanti Limited, a gold mining company in Ghana, were studied from June to September, 2010. The process effluent from the gold extraction plant contains high amounts of suspended solids and is therefore highly turbid. Arsenic, copper and cyanide were identified as the major pollutants in the process effluent with average concentrations of 10.0, 3.1 and 21.6 mg?L?1, respectively. Arsenic, copper, iron and free cyanide (CN?) concentrations in the process effluent exceeded the Ghana EPA discharge limits; therefore, it is necessary to treat the process effluent before it can be discharged into the environment. Principal component analysis of the data indicated that the process effluent characteristics were influenced by the gold extraction process as well as the nature of the gold-bearing ore processed. No significant correlation was observed between the wastewater characteristics themselves, except for the dissolved oxygen and the biochemical oxygen demand. The process effluent is fed to the Sansu tailings dam, which removes 99.9 % of the total suspended solids and 99.7 % of the turbidity; but copper, arsenic and cyanide concentrations were still high. The effluent produced can be classified as inorganic with a high load of non-biodegradable compounds. It was noted that, though the Sansu tailings dam stores the polluted effluent from the gold extraction plant, there will still be serious environmental problems in the event of failure of the dam. 相似文献
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Appiah-Otoo Isaac Acheampong Alex O. 《Environmental science and pollution research international》2021,28(23):29432-29444
Environmental Science and Pollution Research - The effect of financial development measured by banks, bonds, and stocks on carbon dioxide emissions (CO2E) has been widely studied while not much is... 相似文献
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Adebayo Tomiwa Sunday Acheampong Alex O. 《Environmental science and pollution research international》2022,29(7):9867-9882
Environmental Science and Pollution Research - Sustainable development policies for achieving net-zero emissions require understanding the factors that influence carbon emissions. Capitalizing on... 相似文献
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