Novel Approach for effluent treatment of 4- ADAPSA (Dye Intermediate) : Using Sodium Hypochlorite as a Reducing Agent

Chemical Engineering

Dye wastes basically represent one of the most problem creating groups of pollutants and hazardous materials because they can be easily identified by the human eye and are not easily biodegradable. The purification of waste water from various industrial processes is a worldwide problem of increasing importance due to the restricted amounts of waste water suitable for direct use, the price of the purification and the necessity of utilizing the waste products. So it is require treating the dye waste water generated from the different dye manufacturing industries. In the present study the characteristics of the untreated wastewater generated from dye industrious was studied. Wastewaters of unit manufacturing (Industrial Chemical Works Naroda, Ahmedabad) different types of dyes were used for this study. Dye Wastewater is well known to contain strong color, high pH, temperature, Chemical Oxygen Demand (COD) and biodegradable materials. Wastewater was analyzed for pH, Chemical Oxygen Demand (COD), Biological Oxygen Demand (BOD), Total Dissolved Solids (TDS), Suspended Solids the Study also shows that the high amount of sludge was generated from the treatment of wastewater. By using of the Sodium Hypochlorite (NaOCl) (used in different amounts) as a reducing agent it is effectively used for the Reduction of COD of dye Effluent. The efficiency of the results presented are demonstrated by different dye manufacturing industries located in GIDC Naroda, Ahmedabad, Gujarat (India). The Study also correlated manufacturing process with wastewater characteristics and shows that the wastewater is a mixture of wastewater generated from various stages of manufacturing process.

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