Formulation of natural elite dye remover from textile effluent

Abstract

Introduction: The dyes used in the textile industry poses a major problem to wastewater sources and the environment. Common ways of wastewater treatment containing dyes include adsorption, sedimentation, chemical analysis, chemicoagulation, biological methods, and advanced oxidation procedures. Objective: To produce the papaya seed, banana pith and pineapple peel powder and treat textile synthetic wastewater with these natural coagulants. Methods: Papaya seed, Banana pith and Pineapple peel were dried at a particular temperature and ground into powder. Coagulation and flocculation tests were carried out using the jar test apparatus in which 500mL of raw water sample was treated with different concentration of natural coagulants. BOD and COD were determined, FTIR analysis was made to know the functional group of natural coagulants which is responsible for efficient dye removal. Results: The turbid remaining vs. coagulant dosage graph has been plotted. The treated textile wastewater sample is tested for the presence of BOD; initially, the value was 337.25mg/L with dark blue colour and after 5 days of incubation the colour reduces and brownish precipitate forms with a value of 185.43mg/L. Treated textile wastewater is tested for the presence of the chemical oxygen demand, after 2 hours of digestion, titration is carried out, which showed the change in bluish-green colour to red colour. The result indicates initially COD value as 480mg/L which is reduced to 323mg/L. Conclusion: The FTIR results showed the presence of potential functional group which is responsible for dye removal. The ini-tial value of BOD and COD was reduced from its original value. Hence, natural coagulants play a potential role in the treatment of Dyes in textile effluent.