ASSESMENT OF CHEMICAL TRETABILITY OF FUR-SUEDE PROCESSING WASTEWATER TOGETHER WITH TOXICITY REMOVAL

Authors : Günay Yıldız TÖRE, Gül KAYKIOĞLU

Pages : 261-270

View : 40 | Download : 6

Publication Date : 2018-03-01

Article Type : Research Paper

Abstract :The aim of this study was to assess the conventional coagulation/flocculation treatability efficiency and the toxicity effect of chemically treated effluent on Daphnia magna for fur-suede processing wastewater. Three different conventional coagulants insert ignore into journalissuearticles values(FeCl3, Al2SO4, FeSO4); were used in this study and the best treatability conditions insert ignore into journalissuearticles values(coagulant type and dosage); were determined based on COD and Color removal efficiencies. After then, toxicity determination of raw and chemically best treated fur-suede processing wastewater were done using with Daphnia magna standard method. The results indicated that while the highest COD removal efficiency was determined for Al2SO4 as 86 % at 800 mgL-1 and pH=8.5, the lowest efficiency was found as 67 % for the same dosage of FeCl3 . On the other hand, Color removal efficiencies were found as 95-98 % for all coagulants and the best results was observed at Al2SO4 at 800 mgL-1 and pH=8.5. By the way, the best toxicity removal was calculated as 60% for effluents insert ignore into journalissuearticles values(50% diluted); treated with Al2SO4. These results show that as a first treatment step for fur-suede processing wastewater, chemical coagulation-flocculation with Al2SO4 provide the best performance both to remove COD and Color and also to decrease in toxic effect.
Keywords : Fur suede wastewater, Daphnia magna toxicity, coagulant, COD and color removal

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