Determination and detoxification of cyanide in gold mine tailings: A review.

08:00 EDT 11th October 2019 | BioPortfolio

Summary of "Determination and detoxification of cyanide in gold mine tailings: A review."

Cyanide is among the most toxic chemicals widely employed in the cyanidation process to leach precious minerals, such as gold and silver, by the minerals processing companies worldwide. This present article reviews the determination and detoxification of cyanide found in gold mine tailings. Most of the cyanide remains in the solution or the slurries after the cyanidation process. The cyanide species in the gold tailings are classified as free cyanide, weak acid dissociation, and metallocyanide complexes. Several methods, such as colorimetric, titrimetric, and electrochemical, have been developed to determine cyanide concentrations in gold mine effluents. Application of physical, natural, biological, and chemical methods to detoxify cyanide to a permissible limit (50 mg L) can be achieved when the chemical compositions of cyanide (type of species) present in the tailings are known. The levels of cyanide concentration determine the impact it will have on the environment.


Journal Details

This article was published in the following journal.

Name: Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
ISSN: 1096-3669
Pages: 734242X19876691


DeepDyve research library

PubMed Articles [15242 Associated PubMed Articles listed on BioPortfolio]

Assessing potential hydrogen cyanide exposure from cyanide-contaminated mine tailing management practices in Thailand's gold mining.

This study assessed the effectiveness of the current cyanide management practice of a large gold mine as a case study of Thailand's cyanide-contaminated mine waste management policy. Most gold mines w...

Effects of mine tailings exposure on early life stages of Atlantic cod.

In Norway, mine tailings waste can be deposited by coastal submarine dispersal. Mine tailings slurry include fine particles

An ecotoxicological assessment of mine tailings from three Norwegian mines.

The study assessed the environmental toxicity of three Norwegian mine tailings from Omya Hustadmarmor, Sydvaranger, and Sibelco, which are all released into a seawater recipient. Ecotoxicity assessmen...

Bacterial influence on storage and mobilisation of metals in iron-rich mine tailings from the Salobo mine, Brazil.

In this study we investigated the potential effects of promoting bacterial activity on tailings from the Salobo iron-oxide copper‑gold (IOCG) mine, Brazil. In particular we focussed on (1) the poten...

Epifaunal and infaunal responses to submarine mine tailings in a Norwegian fjord.

Disposal of mine tailings in marine shallow water ecosystems represents an environmental challenge, and the present paper reports results from a field study in Frænfjorden, Norway, which is subject t...

Clinical Trials [3125 Associated Clinical Trials listed on BioPortfolio]

Is it Possible to Treat Cyanide Poisoning With HBO?

People who has been in a fire accident have been shown often to be cyanide poisoned as well as poisoned with carbon monoxide(CO). According to recommendations from the Danish Health Agency...

Outpatient Versus Inpatient Detoxification Program for Alcohol Dependent Patients Seeking Abstinence: The IN/OUT Study

Detoxification, in an inpatient or outpatient program, is the primary and essential step for managing alcohol dependence. The superiority of one or other method of detoxification has never...

Comparison of Three Opioid Detoxification Treatment Regimens

Despite an increased focus on treating opioid use disorder there are relatively few studies that compare the length of time required for detoxification with medications other than buprenor...

Acceptance Therapy During Methadone Detoxification

The purpose of this study is to develop an opiate detoxification behavior therapy based on current Acceptance and Commitment Therapy (ACT) theory and method, and to test its feasibility an...

Lofexidine for Inpatient Opiate Detox

The main objective of this study is to investigate the effectiveness of lofexidine in reducing withdrawal symptoms among subjects undergoing opiate detoxification. Currently, lofexidine i...

Medical and Biotech [MESH] Definitions

Review of claims by insurance companies to determine liability and amount of payment for various services. The review may also include determination of eligibility of the claimant or beneficiary or of the provider of the benefit; determination that the benefit is covered or not payable under another policy; or determination that the service was necessary and of reasonable cost and quality.

Unstable isotopes of gold that decay or disintegrate emitting radiation. Au 185-196, 198-201, and 203 are radioactive gold isotopes.

Stable gold atoms that have the same atomic number as the element gold, but differ in atomic weight. Au-197 is a stable isotope.

Review of the medical necessity of hospital or other health facility admissions, upon or within a short time following an admission, and periodic review of services provided during the course of treatment.

A suspension of metallic gold particles.

Quick Search

DeepDyve research library

Relevant Topic

Biological Therapy
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...

Searches Linking to this Article