Studies and absorption of physiochemical and heavy metals from tannery effluents using macro and micro fungi

Abstract

Tanneries engender innumerable toxins reliant on the progression recycled. The foremost pollutants and impurity related to this division obligated conversed beneath. Bioremediation by means of fungi is widely travelled. Mycelial biomass of cultivated mushroom Pleurotus florida and fungi Aspergillus niger and Alternaria alternata were poised from TNAU Coimbatore and imperiled for bio adsorption studies. The bio adsorption process were carried out in four different concentrations and examined regularly for the change of color. At the end of seventh day the effluent samples were analyzed for Physico chemical parameters and heavy metal analysis. The results showed a significant degradation of pollutants as adsorbed by the fungi. Physicochemical parameters like (Color, odour, turbidity, TDS, BOD, COD, Calcium, magnesium, nitrate) of tannery effluent were estimated. The results of the study revealed that physico chemical parameters of the effluent before treatment were found to be above the permissible limits for disposal as prescribed by Central pollution control board (CPCB). After adsorption study using fungus the physico chemical parameters have been reduced and found below the acceptable limits of Central pollution control board (1995 CPCB), The Bureau of Indian Standards (BIS 1983) and World health organization (WHO 1996). With the intention of the effluents can reused for agricultural and aquaculture purposes.