A preliminary study on microbial desulfurization of coal using Thiobacillus ferrooxidans

Date

3-1988

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Cristina D. Padolina

Abstract

ABSTRACT

The feasibility of using the iron and sulfur oxidizing microorganism Thiobacllus. ferrooxidana in lowering the sulfur content of coal mined in the Philippines was determined. Two factors were considered, the effect of culture age of the inoculum and the initial pH of the medium. Results showed that the leaching was greatest in samples inoculated with 2-day old cultures leaving 0.07X total sulfur in coal compared to 0.24%, 0.350 and 0.180 In the control, 3-day and 4-day old cultures, respectively.

Desulfurization at pH 2.0 was better than at pH 2.5 and 3.0. The amount of sulfate in the leachate increases from 1.12* in the untreated coal to 5.12X, 3.01* and 2.54% in the leaching experiments at pH 2.0, 2.5, and 3.0.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1988 C4 N57

Document Type

Thesis

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