Integrated iron(II) oxidation and limestone neutralisation of acid mine water

Autor:	M. de Beer, W. F. Strydom, J. P. Maree
Rok vydání:	1999
Předmět:	Environmental Engineering Water Science and Technology
Zdroj:	Water Science and Technology. 39:231-238
ISSN:	1996-9732 0273-1223
DOI:	10.2166/wst.1999.0662
Popis:	Volumetric iron(II) oxidation rates exceeding 100 g/(l.d) were achieved by dosing powdered limestone to a bio-reactor treating artificial acid mine water. Neutralisation and partial sulphate removal were achieved as well. The rate is highly dependent on the surface area exposed to the liquid (RSA) and the OH−, oxygen, CaCO3, suspended solids and iron(II) concentrations, and less dependent on specific surface area (SSA) and pressure in the pH range 5 to 6. The chemical oxidation rate (pH greater than 6) is dependent on the OH−, oxygen, and iron(II) concentrations and the reactor surface area (RSA).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c1e7b610157ccb493bcfd8087cb11c0c https://doi.org/10.2166/wst.1999.0662 Zobrazit plný text záznamu