Studies on Soil Biomass and Xylanases  Producing Bacteria in Paper Mill Effluent  Affected Soil

Manika Das; Sumer Singh; Bhaben Tanti

Volume : II, Issue : IV, April - 2013

Studies on Soil Biomass and Xylanases Producing Bacteria in Paper Mill Effluent Affected Soil

Manika Das, Sumer Singh, Bhaben Tanti

Abstract :

Paper mill effluent contains organic and inorganic toxic materials, which affects the soil physico-chemical parameters and microbial population and its diversity. Phenol is one of the toxic aromatic compounds which have deleterious effects on soil micro flora as well as on vegetation in effluent affected areas. In the present study, the physico-chemical parameters of paper mill effluents obtained from Nagaon Paper Mill (NPM), Jagiroad, Assam were analysed. All total nine strains, capable of growing in phenol containing MSM medium at a concentration range of 100 to1000ppm, were isolated. Pure cultures of phenol-degrading microbial strains were obtained by growing on enrichment medium (Mineral salt medium) containing 500ppm. Three strains were found to be efficient among the nine strains, which is confirmed by measuring their capability of phenol degradation with respect to incubation time. This study provides scope for future study of identification of phylogenetically closely related species for phenol degradation in industrial wastes and their use in eco-friendly and more economic way, with the development of technology.