STUDY OF OXYGEN CONSUMPTION VALUE AND BIOLOGICAL PARAMETERS

The present investigation is carried out using effluent water from the dyeing
industries of Bhiwandi city. Most of the chemicals present in the effluent water when
discharged into main water bodies consume oxygen for oxidation and decomposition
purposes. They reduce the level of oxygen in water which in turn causes mortality of
the bio-organisms. The dyeing industry creates water pollution as the waste
generated from the different wet processes like scouring, bleaching, dyeing and
printing are very harmful. They cause chemical pollution due to discharge of
various chemicals and disturb the normal functioning of living organisms (bioorganisms)
in water. This research work has been carried out to assess the effect of
pollution on the quality of water (which could also be a source of drinking water)
and on bio-organisms. Water samples collected from the dyeing industry were
analyzed for amount of Oxygen and for biological parameter. It has been observed
that reduction in dissolved oxygen concentration is one of the most important factors
that directly affect the lifecycle of most of the aquatic animals. The results of oxygen
consumed by the chemicals are then compared with the standard values prescribed
by the standard bodies