A proposed technique for measuring in situ the oxidation rate in biooxidation and bioleach heaps

Autor:	A.I.M. Ritchie, J.W. Bennett
Rok vydání:	2004
Předmět:	In situ chemistry.chemical_classification Hydrometallurgy Sulfide Metals and Alloys Heap leaching Mineralogy Pulp and paper industry Industrial and Manufacturing Engineering Reaction rate chemistry Materials Chemistry Limiting oxygen concentration Aeration Heap (data structure)
Zdroj:	Hydrometallurgy. 72:51-57
ISSN:	0304-386X
DOI:	10.1016/s0304-386x(03)00130-0
Popis:	Measurement of the time-dependent change in the oxygen concentration immediately after cessation of aeration is proposed as a method for measuring the sulfide oxidation rate in biooxidation and bioleach heaps. A similar method has been used to determine the sulfide oxidation rate in waste rock dumps at a number of mine sites. The measurement is rapid, is non-destructive, is in situ, allows repeat measurements at the same location and is not expected to interfere with the overall operation of the heap. The sulfide oxidation rate is a key indicator of heap performance, and its measurement provides a means for observing the effectiveness of any changes in heap operation made to optimise performance. In the case of a biooxidation heap, the measurement allows an estimate of the total amount of oxidised sulfide to be made.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::465f90aafc908bd6362371426b1f1ae0 https://doi.org/10.1016/s0304-386x(03)00130-0 Zobrazit plný text záznamu Full Text from ScienceDirect