Decolorization of olive oil mill liquid wastes by chemical ...
01/01/1996 · The removal of colour from olive mill wastewaters (OMW) using aluminium sulphate [Al 2 (SO 4) 3 ·18H 2 O], lime (CaO) and hydrogen peroxide (H 2 O 2) was investigated, along with the decolorizing effect of sixteen strains of general terms all chemical substances exerted a clear decolorizing effect, yet the most effective was hydrogen peroxide, followed by lime and alumina.