Investigation of oil biodegradation using expanded zeolite infused with oil-consuming microorganisms.

Abstract

The study examined the capabilities of expanded zeolites, which were modified with oil-consuming bacteria, in terms of biosorption, biodegradation, and oil absorption. This investigation aimed to assess the effectiveness of zeolite as an absorbent for oil spills and its potential for eradicating such spills. The research involved three different adsorbents: one without bacteria, one with zeolite loaded with bacteria, and one with expanded zeolite laden with bacteria. The results indicated that expanded zeolite, characterized by an extensive surface region and reduced density, provided conditions conducive to the development and propagation of microbes. After microbial establishment, the absorption and removal of oil increased by 60.5% and 78.14%, respectively, in contrast to the pre-enlargement stage. Additionally, microorganism functioning helped mitigate oil pollution and reduced the interfacial tension amid water and oil through the generation of surfactants. This, in turn, facilitated the separation of residual oil from water.