PHYCOREMEDIATION OF INDUSTRIAL EFFLUENT FROM TANNARY IN PERANAMPATTU AND AMBUR AREA OF PALAR RIVER
R. Sakthivel* and S. Elumalai
ABSTRACT
The leather industry represents an important economic sector in many countries. On the other hand, it generates
large amounts of wastewater containing ammonium ion, sulphides, surfactants, acids, dyes, sulfonated oils and
organic substances including natural or synthetic tannins agents. Tannery wastewater treatment is very complex,
due to the addition of large number of chemicals in several concentrations. The treatments of these effluents using
physical - chemical methods alone are quite expensive technologies. Hence the present work is focused on
biological treatment to reduce the pollutants of tannery effluents and through micro algal treatment process taken
from the tannery industries Peranampattuand AmburPalar River effluents, Tamil Nadu, India. The effluent
samples were characterized by measurements of Physico – chemical properties, such as, BOD, COD, etc.,. In our
findings we observed that the consortium of Microalgal species such as Chlorella vulgaris
andScenedesmusdimorphusat various ratios (Control, 100:400, 200:300, 250:250, 300:200, 400:100 of algae and
effluent concentration respectively) effectively reduces the TDS, COD and BOD level of effluents which was
confirmed by the Physico-Chemical measurements at regular interval of 7 days for a period of 21 days. The
concentration of algal consortium and effluent 250:250 was found to effectively reduce TDS, BOD and COD
levels when compared to individuals. Hence this technology avoids use of chemicals and the whole process of
effluent treatment is simplified to make it and eco-friendly & economical.
Keywords: Leather Waste water, Biological Treatment, Consortium, Chlorella vulgaris, Scenedesmusdimorphus.
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