Browsing by Subject "Heavy metals"
Now showing items 1-10 of 23
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Accumulation patterns and risk assessment of metals and metalloid in muscle and offal of free-range chickens, cattle and goat in Benin City, Nigeria
(Elsevier, 2018)The use of free range animals for monitoring environmental health offers opportunities to detect exposure and assess the toxicological effects of pollutants in terrestrial ecosystems. Potential human health risk of dietary ... -
Acid leaching of heavy metals from bentonite clay, used in the cleaning of acid mine drainage
(SAIMM, 2010)Heavy metals and sulphates in acid mine drainage (AMD) can be adsorbed onto bentonite clay, leaving clean water and a heavy metal loaded clay precipitate as products. Due to the toxicity of heavy metals, the clay could ... -
Adverse effect of heavy metals (As, Pb, Hg, and Cr) on health and their bioremediation strategies: a review
(Springer, 2018)Currently, heavy metal pollution becomes a severe problem whole over the world, and these toxic metals enter into the environment either by natural phenomena or due to extensive industrialization. The discharged effluents ... -
Biological reduction of COD and sulphate by SRB in anaerobic moving bed biofilm reactor under high metal loading conditions
(EARET, 2018)The performance of an anaerobic moving bed biofilm reactor (MBBR) containing AnoxKaldnesTM K5 model for the treatment of raw acid mine drainage (AMD) was investigated for the reduction of sulphate and chemical oxygen ... -
Co-composting of cow dung, municipal solid waste, roadside pond sediment and tannery sludge: role of human hair
(Springer, 2017)In general, farmers from developing countries often use several feeding mixtures based on materials available in their vicinity resulting in a final poor-quality compost product. Human hair as a composting feed could impact ... -
Column leaching of fine coal tailings: impact on environment and thickener operation
(EARET, 2018)The coal mining sector is synonymous with generating large quantities of waste. A comprehensive fraction of the waste is classified as fines (-500 µm) and ultrafine (-100 µm) particles, which accounts eleven per cent ... -
Effect of Bacillus cereus on the ecotoxicity of metal-based fungicide spiked soils: earthworm bioassay
(Springer, 2019)Soil microorganisms exhibit varying levels of metal tolerance across a diverse range of environmental conditions. The use of metal-based fungicides such as mancozeb and copper oxychloride could potentially result in increased ... -
A greenhouse trial to investigate the ameliorative properties of biosolids and plants on physicochemical conditions of iron ore tailings: implications for an iron ore mine site remediation
(Elsevier, 2016)An iron ore mine site in Swaziland is currently (2015) in a derelict state as a consequence of past (1964–1988) and present (2011 – current) iron ore mining operations. In order to control problems associated with mine ... -
Heavy metal threats to plants and soil life in Southern Africa: present knowledge and consequences for ecological risk assessment
(Springer, 2019)In recent times there has been remarkable development in the field of soil ecotoxicology and risk assessment (RA) models. It is, however, debatable if these RA models are robust representatives for worldwide relevance. In ... -
A holistic view on the impact of gold and uranium mining on the Wonderfonteinspruit
(North-West University, 2012)The Wonderfonteinspruit (WFS) flows through the richest gold mining region in the world and has subsequently been exposed to the related pollution for more than a century. In order to determine the extent of mining related ...