Research Article Open Access

METABOLIC RESPONSE AND NUTRIENT REMOVAL BY TOLYPOTHRIX TENUIS (KUTZ.) FROM FERTILIZER INDUSTRIAL EFFLUENT

Abstract

With an increase in industrialization the problem of effluent disposal and maintaining the quality of natural ecosystem is becoming acute. Replacing the conventional approach of disposal or dilution, new technologies of bioremediation, detoxification, accumulation, and disinfection of the system are being developed. Exploitation of cyanobacteria in bioremediation is one of the recent trends. In the present study, cyanobacteria -Tolypothrix tenuis (Kutz.) was treated with fertilizer industry effluent to find out its nutrient removal efficiency and also metabolic changes occurring due to it. The metabolic changes (Growth- Chlorophyll-a, Carotenoids, Proteins, Carbohydrate, Phenols and Amino acids) and nutrient removal (PO4, SO4 &NO2 uptake) were determined after every three-day interval for 15 days. Results showed growth of T. tenuis in 90 per cent effluent concentration was inhibited by 65% that compared to control at the end of 15 days. The test concentrations caused a concentration dependent decrease in pigment content. A decrease in carbohydrate values was observed with rise in effluent concentrations. However, Phenols were found to increase with increased effluent concentrations but amino acids were found to decline. Rise in removal of phosphate by the organism was observed in all the doses of effluent in medium. Removal of nutrients from the medium was found to increase.

J.I.NIRMAL KUMAR , RITA N. KUMAR AND IRA BHATT

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