Journal
BIOREMEDIATION JOURNAL
Volume 23, Issue 2, Pages 107-117Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10889868.2019.1603139
Keywords
Amendments; biodegradation; bioremediation of hydrocarbons; remediation of contaminated sediments; nutrients; total petroleum hydrocarbon (TPH)
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Funding
- Salt Cove Foundation
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Petroleum pollution is a global problem that requires effective and accessible remediation strategies that takes ecosystem functioning into serious consideration. Bioremediation can be an effective tool to address the challenge. In this study, we used a mesocosm experiment to evaluate the effects of locally sourced and community produced biochar and compost amendments on diesel-contaminated soil. At the end of the 90-day experiment, we quantified the effects of the amendments on total petroleum hydrocarbons (C9-C40) (TPH) and soil pH, organic matter, aggregate stability, soil respiration, extractable phosphorus, extractable potassium, and micronutrients (Mg, Fe, Mn, and Zn). We observed significantly higher TPH degradation in compost-amended soils than in controls and soils amended with biochar. We propose that the addition of compost improved TPH biodegradation by augmenting soil nutrient content and microbial activity. Our results suggest that community-accessible compost can improve TPH biodegradation, and that implementation is possible at the community level.
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