Ali Hasan (2014-VA-939)

Construction Of Cellulolytic And Sulfate-Reducing Bacterial Consortium For Enhancing Efficiency Of Cellulose-Linked Bioremedial Processes - 2016. - 53p.;

Metallic and non-metallic pollutants originating from different industries are not treated before their final discharge into the environment. Consequently, environment is being degraded very rapidly and posing serious threats to all forms of life. For remediation of the said pollutants, a number of physico-chemical treatment methods have been practiced but couldn’t found suitable due to environmentally non-compatible natures and generation of secondary pollutants.
The present study was, therefore, designed to treat artificially prepared sulfate-rich wastewater jointly with the help of cellulolytic and sulfate-reducing bacterial species while using a variety of agro-industrial wastes as cost-effective growth substrates. In order to achieve the goal, the two bacterial species were mixed in different proportions to achieve significant results of sulfate reduction.
Statistical analysis revealed that rice straw appeared as the most efficient carbon source among all the agricultural wastes because it reduced about 96% of the total added sulfate in a 60-day trial of anaerobic incubation. And among all the industrial wastes, animal manure appearedasthe most efficient carbon source, it could reduce 93% of sulfate. Mixture of industrial and agricultural waste reduced about 90% of the sulfate. Findings of this project will be helpful in developing an economical and environmental friendly bio-remedial technique for the treatment of metallic and non-metallic wastes simultaneously which ultimately convert the industrial wastewaters into harmless and suitable discharge to aquatic environment.



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