Cyanide treatment of mining tailings using suspended biomass and moving bed biomass reactors

Autor:	Angélica Julieta Alvillo-Rivera, Sofía Esperanza Garrido-Hoyos, Germán Buitrón
Rok vydání:	2021
Předmět:	Biodegradation Environmental Cyanides Health Toxicology and Mutagenesis Metals Heavy Environmental Chemistry Humans General Medicine Biomass Pollution Mining
Zdroj:	Environmental science and pollution research international. 29(25)
ISSN:	1614-7499
Popis:	Mexico is the top producer of silver and is on the eighth place from producing gold in the world. For instance, the hydrometallurgical extraction process produces wastewater (mining tailing) characterized by being composed with varying concentrations of cyanide and heavy metals. The purpose of this research was to study the biodegradation of cyanide contained in mining tailings by means of a bacterial consortium isolated from a tailings dam. For this purpose, three types of Eckendfelder reactors were used, one with suspended biomass (BS) and two moving bed biofilter reactors, one with biomass immobilized on Kaldnes (BK) supports, and the other on polyurethane cubes (BCP). Three experimental stages were worked; in each of them, the concentrations of total cyanide were varied. In the first one, it was 26 ± 2 mg·L
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e148fbbea5574b4d84a3475881fa974 https://pubmed.ncbi.nlm.nih.gov/35066824 Zobrazit plný text záznamu Full text from SpringerLink