Author:Maree, JP; Dingemans, D; Van Tonder, GJ; Mtimkulu, SDate:1998Iron (II) should be oxidised to iron (III) before the neutralisation of acid water with limestone, otherwise the oxidation will occur downstream of the neutralisation plant with the formation of acid (reactions 1 and 2). This study aimed at ...Read more
Author:Maree, JP; Strydom, WF; De Beer, MorrisDate:1999Volumetric 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 ...Read more
Author:De Beer, Morris; Mathews, EH; Krueger, D; Maree, J; Mbhele, FN; Phalanndwa, M; Novhe, NODate:Mar 2008Traditionally acid mine water is neutralised with lime. Limestone is a cheaper alternative for such applications. A case study showed that limestone can be used effectively to replace lime for the neutralization of arsenic rich acid water. ...Read more
