Effect of Biodiesel on Biofilm Biodeterioration of Linear Low Density Polyethylene in a Simulated Fuel Storage Tank

Juan Manuel Restrepo-Flórez, Jeffery A. Wood, Lars Rehmann, Michael Thompson, Amarjeet Bassi*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

A simulated fuel storage tank was used to study biodeterioration of linear low-density polyethylene over 100 days. The system consisted of a water layer inoculated with microorganisms and a fuel layer of diesel/biodiesel. Biodeterioration was characterized measuring: biofilm growth, surface chemistry, crystallinity, and topography. Results showed greater accumulation of biofilm at higher biodiesel concentrations. Polyethylene biodegradation measured as consumption of oxidized species, increase in contact angle with water and reduction in electron donor groups was observed in all samples and was slightly higher in biodiesel-rich fuels. Topography changes and weight loss showed that microbial penetration in the polymer was superficial.

Original languageEnglish
Article number032211
JournalJournal of Energy Resources Technology, Transactions of the ASME
Volume137
Issue number3
DOIs
Publication statusPublished - 1 May 2015
Externally publishedYes

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