In this study, microorganism separated from the Syrian soil were used in
treating the waste water from dyehouse and some dyes which are oftenly
applied. A great difference was found in the speed of microorganism growth as
well as the great variati
on in color disappearance, in addition to inactivating
the enzymatic work by some of the dyes. Also, the effect of the dyes density on
the growth of microorganism. The absorption strength measurment in the field
of visible spectrum between ٣٥٠ –٧٥٠ nanometers was adopted for analyzing
the filtrates resulting from the biological treatment .
In this study, iron chloride solution ١٠٪ was used as absorbance matter
which absorbs all dyes and the organic substances during its precipitation .
The accumulation of these wastes in nature is considered to be a serious source
of pollution and h
ealth hazard. We determined the optimal pH and the optimal
dose of a minimom number of the reagent used as well as the water of
dyehouse baths, and we compared the difference between using iron chloride
and aluminium sulfate .We adopted the experimental observation in measuring
the results and the strength of absorption within the spectrofield in a wave
length of ٣٥٠ – ٧٥٠ nanometer .
