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Synergetic effect using green nano-zero-valent iron and biodegradation (Pseudomonas BSPS_PHE2) for cyanide and phenol removal in coke-oven wastewater
Cyanide and phenol represent the most hazardous combination of wastewater due to their synergistic toxicity. The present study investigated the...
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Electrocoagulation for Cyanide Removal from Industrial Waste Solutions: an Innovative Cell Design and Optimization Using Response Surface Methodology
This study investigates the application of electrocoagulation for the removal of cyanide from industrial waste solutions, utilizing a novel cell...
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Research Status of Treatment of Cyanide Containing Wastewater and Comprehensive Recovery of Valuable Elements
This paper briefly describes the source and harm of cyanide containing wastewater, introduces the main treatment processes of cyanide containing...
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New Insights into Improving the Physicochemical Properties and Flotation Behavior of Pyrite Interfaces from Cyanide Tailings
As the main sulfide mineral in cyanide tailings, how to reduce cyanide inhibition and thus improve the flotation recovery of pyrite is of great...
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Efficient Remediation of an Actual Cyanide-Contaminated Soil by Persulfate Oxidation: Tube- and Column-Scale Studies and Restoration Quality Evaluation
The removal of cyanide complexes in an actually contaminated soil (pollution level 930 mg CN/kg soil) by sulfate radical (SO 4 •– )-based advanced...
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Role of hypochlorite in the harmless treatment of cyanide tailings through slurry electrolysis
The efficient and harmless treatment of cyanide tailings is necessary for gold extraction processes. The present study reports the effects of ClO − ...
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Comprehensive Reclamation of Valuable Metals from Au-Bearing Cyanide Residue by Chlorination Roasting–Carbothermic Reduction–Magnetic Separation: Recovery of Iron
Extraction of gold from the refractory gold ores is commonly practiced by cyanide leaching, which simultaneously generates a significant amount of...
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Application of the anion-exchange resin as a complementary technique to remove residual cyanide complexes in industrial plating wastewater after conventional treatment
Cyanide is highly toxic and must be destroyed or removed before discharge into the environment. This study examined the ability of commercial...
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Non-cyanide Extraction of Gold from Carlin-Type Gold Concentrate by Pressure Oxidation Pretreatment–Jarosite Decomposition–Fine Grinding: An Eco-Friendly Process and Its Mechanism
AbstractOf late, given the difficulties in gold extraction and severe environmental pollution emanating from cyanide extraction of Carlin-type gold...
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Cyanide-free environment-friendly alternative to copper electroplating for zinc die-cast alloys
In this paper, a cyanide-free electroplating bath containing glutamate as a complexing agent is investigated as an environment-friendly alternative...
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Acute ecotoxicological effects of Hg(CN)2 in Danio rerio (zebrafish)
Artisanal and small-scale gold mining (ASGM) is the largest source of anthropogenic Hg emissions on the planet. In addition, Hg-contaminated tailings...
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Selective gold extraction from electronic waste using high-temperature-synthesized reagents
For over two hundred years, cyanide has served as the primary reagent for gold extraction. However, due to its high toxicity, the use of cyanide...
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Heavy metal pollution caused by cyanide gold leaching: a case study of gold tailings in central China
It is known that the tailings of gold mines have brought serious heavy metal pollution; however, the heavy metal pollution caused by gold tailings in...
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Mercury methylation in cyanide influenced river sediments: A comparative study in Southwestern Ghana
Studies on the influence of CN on Hg methylation rates in aquatic systems draining gold mining (artisanal and small-scale) communities in Africa are...
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Experimental study on cyanide-contaminated soil (China) treatment by leaching and decomposition
The removal of cyanide compounds in soil by leaching was investigated in flask and column tests. All the experiments were conducted under alkaline...
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Research on Separation and Extraction of Valuable Metals from Complex Non-ferrous Metals Resources by High Pressure Oxygen Leaching Methodology: A Review
To systematically discuss how to realize the high efficiency utilization of the complex non-ferrous metals resources with the high pressure oxygen...
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Water Management at the Dangote Refinery, Nigeria
This chapter describes the water treatment system at the Dangote refinery and petrochemical complex in the Lekki Free Zone near Lagos, Nigeria. The...
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Effective thiocyanate biodegradation mediated by bacteria associated to Argentinean mining areas potentially applicable to wastewater biotreatment
In San Juan, Argentina, open-pit gold-mining activities use cyanide leaching for metal extraction. This species produces thiocyanate, affecting...
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The recycling of carbon-rich solid wastes from aluminum electrolytic cells: a review
1.6 Million metric tons of spent carbon electrodes modify carbon-rich solid wastes from aluminum electrolysis are produced annually, threatening...
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Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit boards
The work presented here focused on the extraction of gold (Au), silver (Ag) and palladium (Pd) from electronic waste using a solution of ammonium...
