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Description: Soil contamination by hydrocarbon contaminants is a world-wide problem. Bioremediation is a process where organic contaminants like hydrocarbons can be removed using microorganisms. Oil contaminated soils generally lack conditions needed for bioremediation to occur at the optimum level because of poor nutrient and environmental conditions. In manure management, cow manure is primarily used as source of nutrient in agriculture. This research study aims at utilizing cow manure as a soil amendment to enhance natural soil remediation by enhancing soil conditions needed for bioremediation. A laboratory experiment was conducted with three oil contamination levels and four manure treatment levels and four replicates. Total petroleum hydrocarbon in the soil was measured every 30 days for 120 days using a Soxtec apparatus. Manure addition in general improved soil conditions by increasing soil pH, organic matter content, and field capacity and by decreasing bulk density. This soil condition improvement can help enhance hydrocarbon bioremediation. Manure also may have contributed microbial seed material. Increasing manure levels enhanced hydrocarbon remediation across all contaminant levels. Remediation declined with time after reaching its peak value. Using manure for remediating hydrocarbon-contaminated soil could be another way of utilizing cow manure.

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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Soil and Water 4 - Soil conservation & Pollution Control

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Publication type: Presentation
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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