Effect of contact order of bacteria and goethite on the
oxidation and adsorption of As
Three groups of cell-goethite batch experiments of different
contact order of bacteria and goethite were used for the experiments:
(1) bacteria, goethite and As(III) were added simultaneously(abbreviated SBAG); (2) bacteria and As(III) were incubated for 1 h
before goethite was added (abbreviated BAG); and (3) goethite and
As(III) were incubated for 1 h before bacteria were added (abbreviated
GAB).