Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/6929
Title: STUDIES ON THE BIODEGRADATION OF TOTAL PETROLEUM HYDROCARBONS FROM OILY SLUDGE
Authors: Naik B., Srinivasarao
Keywords: CHEMICAL ENGINEERING
BIODEGRADATION
PETROLEUM HYDROCARBONS
OILY SLUDGE
Issue Date: 2010
Abstract: The study concerns the bio-treatment of oily sludge of petroleum refineries. Experiments were performed on the degradation potential of the microbial species present in the oily sludge through augmentation and using the augmented microbial inoculums to treat oily sludge in a slurry form containing1mineral medium and water pH 8 of the slurry was found to be the optimum for biodegradation. The effect of oily sludge concentration, stirring rate and treatment time on degradation of TPH was studied. It was found that the degradation process consists of two consecutive stages and that each stage followed a first order kinetics. The first stage lasted 4 days followed by a second stage up to 7 days. The faster first stage had a rate constant of 0.074 day-1. Whereas the slower second stage had a rate constant of 0.56 day1. The kinetics was found to be temperature dependent. The study solved that the mineral medium provided essential nutrients to the microbial species and that the degradation efficiency of the whole microbial species present in the oily sludge is very high (-90%).
URI: http://hdl.handle.net/123456789/6929
Other Identifiers: M.Tech
Appears in Collections:MASTERS' DISSERTATIONS (Chemical Eng)

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