The advantages of converting H2S into elemental
Sulphur (S0) rather than sulphate (SO4
-) are: (a) the
process is much faster, (b) less sludge is produced, (c)
no sulphate or thiosulfate is discharged, (d) the
possibility of reusing the sulphur for the production of
H2SO4 and biobleaching processes, (e) no oxygen is
required and (f) less energy is required (Janssen et al.,
1989; Tichy et al., 1994). Thomson et al., (1995)