Effect of temperature on bioremediation of hydrocarbon-contaminated soil using compost
Authors: Krishnapillai, Mano
Description: Bioremediation is a process where biological agents like bacteria are used to degrade organic contaminants found in contaminated soils. The biological organisms use the organic contaminants as food material to derive their metabolic energy. Environmental conditions such as nutrient availability, good aeration and moisture, and adequate temperature are important factors, which can determine the success or failure of a bioremediation project. For soils, which lack nutrient and moisture providing compost as a supplemental material can enhance bioremediation. A location like Newfoundland having an annual summer temperature of 16oC and a winter temperature of 0oC, temperature can be a limiting factor in the bioremediation process.
The objective of this study was to test the compost produced by the Grenfell’s industrial composter for its ability to bioremediate petroleum hydrocarbon contaminated soil under different temperature regimes. Soils contaminated with 10 g oil/100 g of soil were tested with two levels of compost (10 g and 15 of compost/100 g soil) and a control (no compost added) with three replicates under four temperature regimes (7 – 27oC) (36 experimental units) were used in a laboratory experiment. The total petroleum hydrocarbon residue left in the soil would be determined using a Soxtec® apparatus. Data analysis would be done to determine the effectiveness of compost for bioremediation under different temperature conditions.
Keywords: bioremediation, hydocarbon contamination, soil, compost, temperature
Conference name: CSBE/SCGAB 2018 Annual Conference, School of Engineering, University of Guelph, Guelph, Ontario, July 22-25 2018.
Session name: Poster Session
Publisher: Canadian Society for Bioengineering
Language 1: en
Rights: Canadian Society for Bioengineering