Enhanced Remediation of Salt-Affected Petroleum-Contaminated Soil by Modified Biochar Loaded With Acinetobacter Bacteria
SSRN, ISSN: 1556-5068
2023
- 110Usage
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Petroleum-contaminated saline-alkali soils are severe environmental problems in the whole world. However, finding a comprehensive method for these petroleum-contaminated soils still needs to be improved. This study isolated a petroleum-degrading strain (Acinetobacter sp. Y-1) from the oily sludge. In order to test the influence factors on the bioremediation of petroleum-contaminated saline-alkali soils, we conducted six treatments in pot trials, including control (CK), Y-1 (strain only), CCBC (biochar derived from corn cobs), CC-MBC (corn cobs biochar modified by concentrated sulfuric acid), CN (Y-1 combined with CCBC) and CM (Y-1 combined with CC-MBC). The results showed that CM had the highest petroleum degradation rate (39.4 %), and its ESP has significantly decreased by efficiently achieving Na+ fixation and regulating cations in the contaminated soil. Soil nutrients, such as SOC and TN, decreased in CM compared to CK, while DOC increased. Microbial community analysis indicated that the CM treatment decreased the diversity of the soil bacterial community while increasing the proportion of indigenous bacteria, i.e., Firmicutes and Actinobacteriota, which positively correlate with petroleum degrading. FAPROTAX results further indicated that CM treatment has enriched many microorganisms related to degrading petroleum, improving the removal of hazardous organic pollutants. In summary, this method has great potential and combined effect in bioremediation technology for petroleum-contaminated saline-alkali soils.
Bibliographic Details
Elsevier BV
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