International Journal of Engineering Research in Electronics and Communication Engineering

Biodegradation Study of Diethyl Phthalate by Bacteria Isolated from NIT Plastic Garbage Dump Site

Author : Hara Mohan Jena ¹ Akansha Satapathy ² Rakesh Kumar ³ Sangram Shamrao Patil ⁴

Date of Publication :20th April 2018

Abstract: Waste generated from municipal area is a major reason of pollution, and it leads to environmental degradation, destruction of the ecosystem and pretences great risks to public health. Organic pollutants are potential hazardous chemicals for human health and toxic to living things in the receiving natural bodies. Phthalate esters (PEs) are among the most common organic pollutant since they have become widespread in the environment and found in sediments, natural waters, soils, plants, landfill leachates, biota including human tissue and aquatic organisms. In the present work, degradation of Diethyl Phthalate (DEP) by isolated bacterial strain is studied. The bacterial strain was isolated from garbage dumpsite at NIT, Rourkela, Odisha, India. It was identified by biochemical and morphological tests. Furthermore, the process parameters affecting the bacterial growth (pH, inoculum size and temperature) and the degradation of the compound were optimized using one factor at a time. The biodegradation of DEP was studied at various concentrations (250-1000 mg/l). Mass transfer study was performed to determine the Oxygen Transfer Rate (OTR) and mass transfer coefficient.

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