PDF | On Aug 28, 2017, Mike Agbesi Acheampong and others published Low-Cost Technologies for Mining Wastewater Treatment | Find, read and cite all the research you need on ResearchGate
A gold mine effluent is sampled at the inlet of an operating treatment plant. The effluent is alkaline (pH 7.5-8.4) and contains high concentrations of SCN- (435±53 …
The objectives of this study were (1) to determine the best conditions of chemical cleaning of a nanofiltration (NF) membrane (NF90) employed in the treatment of gold mining effluent, and (2) to ...
An engineered wetland treatment system was installed to treat drain-down, collected from the heap leach pad, to provide an effluent suitable for discharge into the groundwater system at the closed Santa Fe mine site in Nevada, USA (Mudder et al., 2001b). Evenly spaced perforated pipes were placed in the inactive lined leach solution …
Request PDF | Gold Acid Mine Drainage Treatment by Membrane Separation Processes: An Evaluation of the Main Operational Conditions | Acid mine drainage (AMD) is an effluent characterized by low pH ...
Technical Article Limestone Neutralisation of Arsenic-rich Effluent from a Gold Mine M de Beer1, 2, D Krueger2, J Maree1, N Mbhele1, M Phalanndwa1, O Novhe1 1 CSIR, Natural Resources and the Environment, Pretoria, 0002, South Africa; 2North-West University, CRCED Pretoria, PO Box 2156, Faerie Glen 4, 0043, South Africa; corresponding …
This study examines the environmental effects of effluent disposal at gold mines in Zimbabwe with particular reference to Tiger Reef Gold Mine in the Kwekwe district. The methods of data collection included questionnaire surveys and interviews directed at key informants to solicit information on the environmental impacts of the environment and …
Meanwhile, the integrated system also has reduced the TDS level in the gold mining effluent from 23,973 to 192 mg/L (>99% removal), producing final permeate with quality that was suitable for ...
Keywords: gold tailings, mine waste management, mine waste reuse Introduction Despite the gold industry's contribution to the national economy, the industry has been plagued by labour disputes and is widely criticized for its negative impacts on the surrounding environment and local com-
Download Free PDF. Download Free PDF. Treatment of gold mining effluent in pilot fixed bed sorption system. ... Treatment of gold mining effluent in pilot fixed bed sorption system. Mike Acheampong. 2014, Hydrometallurgy ...
Gold mining and ore processing are activities of great economic importance. However, they are related to generation of extremely polluted effluents containing high concentrations of heavy metals and low pH. This study aims to evaluate the optimal conditions for gold mining effluent treatment by crossflow membrane filtration regarding the following …
Large quantities of waste are produced during this activity. particularly in gold mines which release over 99% of extracted ore as waste to the environment . The use of bacteria in gold extraction, known as biomining, has received considerable attention due to the potential roles played by these bacteria in the recovery of gold from gold ...
Currently, KMnO4 is commonly used in the pharmaceutical industry and for environmental health safety. However, there have been no reports of its use in the industrial treatment of cyanide wastewaters. The goals of this …
The present review focused on the applications of electrocoagulation for mine wastewater treatment as well as metals …
This study focused on the performance of an UF–NF–RO integrated system treating a gold mining effluent from the pressure-oxidation stage in order to concentrate metals, and recover acid and water.
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 …
Gold-mine effluents are often characterized by high concentrations of copper, ammonia and cyanide derivatives (mostly cyanates and thiocyanates). While not acutely toxic to birds, this water can be acutely toxic to fishes and invertebrates. In many jurisdictions, the effluent requires further treatment in order to pass a mandatory …
The objectives of this study were (1) to determine the best conditions of chemical cleaning of a nanofiltration (NF) membrane (NF90) employed in the treatment …
This report highlights select mining-influenced water (MIW) treatment technologies used or piloted as part of remediation efforts at mine sites. It is intended to provide information on treatment technologies for MIW to federal, state and local regulators, site owners and operators, consultants, and other stakeholders.
Gold Mine Effluent Treatment: Cyanide Compounds and Total Nitrogen Biodegradation using Moving Bed Biofilm Reactor . Simon Vincent. 1*, Caroline Dale. 2, Bradley Young. 3, Marc Laliberté. 1 ...
DOI: 10.1016/J.ELECTACTA.2015.04.015 Corpus ID: 94264101; The treatment of cyanide from gold mine effluent by a novel five-compartment electrodialysis @article{Zheng2015TheTO, title={The treatment of cyanide from gold mine effluent by a novel five-compartment electrodialysis}, author={Yun-jiang Zheng and Zhaokui Li and …
The mining sector can recycle the effluents generated in their processes, however, this can affect the gold extraction and treatment methods. There are legal laws that define cyanide levels in ...
PDF | Acid mine drainage (AMD) occurs after mining exposes metal sulfides to oxidizing conditions. ... Where AMD already exists, effluent treatment is required. Active treatment includes adding ...
Mining operations generate effluents containing pollutants such as ammonia, nitrite and nitrate as a result of blasting operations. Cyanide compounds such as free cyanide, cyanate and thiocyanate are also present when cyanide is used in the gold recovery process. In most cases, mine effluent stored in the ponds eventually needs to …
In this context, the objectives of this study were (1) to determine the optimal conditions of chemical cleaning of an NF membrane (NF90) employed in the treatment of gold mining effluent, and (2) to investigate the effects of continuous exposure to mining effluent and a cleaning agent on NF membrane properties. 2. Materials and methods2.1.
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.
1. Introduction. The mining industry contributes significantly to the world's economy. Mining resources are utilized for different purposes, including ornaments, jewellery, cable wires, building purposes, vehicles, electricity production, high-tech applications, etc. [1, 2].The process of mining and purification of mineral resources …
Figure 6.4 combines the data on waste rock and tailings shown in Figs. 6.1 and 6.3, respectively, and shows the amount of total waste generated for Barrick operations between 2013 and 2016.Table 6.4 shows total waste generated, gold production and total waste generated per unit gold production. Total waste generated per ounce of gold …
We conclude that NF is a suitable treatment for gold mining effluent at an estimated cost of US$ 0.83/m³. Keywords: Gold mining effluent treatment; Nanofiltration (NF); Reverse Osmosis (RO); Feed pH; Permeate recovery rate. INTRODUCTION Gold mining and ore processing are activities of great economic importance. Gold has been used in
Request PDF | Comprehensive bench- and pilot-scale investigation of NF for gold mining effluent treatment: Membrane performance and fouling control strategies | Despite being widely used, large ...
Request PDF | On Jul 1, 2015, Yun Zheng and others published The treatment of cyanide from gold mine effluent by a novel five-compartment electrodialysis | Find, read and cite all the research you ...
Request PDF | Integration of Two Stage Nanofiltration with Arsenic and Calcium Intermediate Chemical Precipitation for Gold Mining Effluent Treatment | The aim of this study was to evaluate an ...
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.
Nanofiltration and Reverse Osmosis Applied to Gold Mining Effluent Treatment and Reuse 95 Brazilian Journal of Chemical Engineering Vol. 34, No. 01, pp. 93 - 107, January - March, 2017 ...
This paper discusses commercially available and emerging methods for removing cyanide from waste streams, particularly from tailings and tailings reclaim …
Environ Sci Pollut Res (2013) 20:3799–3811 DOI 10.1007/s11356-012-1312-3 RESEARCH ARTICLE Assessment of the effluent quality from a gold mining industry in Ghana Mike A. Acheampong & Kannan Paksirajan & Piet N. L. Lens Received: 6 August 2012 / Accepted: 7 November 2012 / Published online: 22 November 2012 # Springer-Verlag Berlin …
Abstract. Arsenic (As)-contaminated gold mine waste is a global problem and poses a significant risk to the ecosystem and community (e.g., carcinogenic, toxicity). Arsenic concentrations of …
This study aims to evaluate the optimal conditions for gold mining effluent treatment by crossflow membrane filtration regarding …
Cyanide in effluents resulting from gold mining is known to be the prime candidate for treatment. However, according to a study by the Ontario Ministry of the Environment (Canada); ammonia, suspended solids and copper were identified as the most important contaminants in gold mining effluents rather than cyanide.
DOI: 10.1016/J.DESAL.2018.02.030 Corpus ID: 104082417; Integrated UF–NF–RO route for gold mining effluent treatment: From bench-scale to pilot-scale @article{Amaral2018IntegratedUR, title={Integrated UF–NF–RO route for gold mining effluent treatment: From bench-scale to pilot-scale}, author={M{'i}riam Cristina Santos …
