Verification of the Pollution Caused from Textile Industry Wastewater by Determination of Some Heavy Metal Concentration, Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD (original) (raw)

The textile industry consumes large quantities of water that causes serious problems for aquatic organisms and human accordingly. This study aimed to verify the pollution caused from textile industry wastewater by determination of the concentration of some heavy metals (Co and Cd), COD and BOD. Three samples of sewage (cotton washing stage (S.No1), fabric dyeing (S.No2), fabric printing(S.No3)) were collected and analyzed by Atomic Absorption Spectrometer (AAS) to determine the concentration of cadmium(Cd) and cobalt(Co), then, BOD and COD also were determined. The results show that the concentration of Cd in the dyeing and printing stage (0.031-0.014) ppm is high compared with the permissible limit of (WHO). The concentrations of Co in the three samples were higher than the permissible limit. COD, BOD presented also higher than the permissible limit in the two last samples (3690.0, 2630.0-2120.0, 1926.50) respectively. These results show that wastewater of textile industry pollutes the environment and causes harms for aquatics and human. The study recommends that the wastewater of textile industry must be treated before it flowed to the Nile water.