Affiliation:
1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
Abstract
As the energy demand increases, there is a significant expansion and utilization of oil resources, resulting in the inevitable occurrence of environmental pollution. Oil has been identified as a prevalent soil contaminant, posing substantial risks to the soil ecosystems. The remediation of soil contaminated with oil is a formidable undertaking. Increasing evidence shows that chemical washing, a remediation technique employing chemical reagents like surfactants to augment the solubilization, desorption, and separation of petroleum hydrocarbons in soil, proves to be an efficacious approach, but the latest advances on this topic have not been systematically reviewed. Here, we present the state of knowledge about the surfactant-based chemical washing to remediate oil-contaminated soil. Using the latest data, the present article systematically summarizes the advancements on ex situ chemical washing of oil pollution and provides a concise summary of the underlying principles. The use of various surfactants in chemical washing and the factors influencing remediation efficiency are highlighted. Based on the current research status and knowledge gaps, future perspectives are proposed to facilitate chemical washing of oil-polluted soil. This review can help recognize the application of chemical washing in the remediation of oil-polluted soil.
Funder
Natural Science Foundation of Shandong Province
Major Scientific and Technological Innovation Project of Shandong Province
Reference80 articles.
1. Kuppusamy, S., Maddela, N.R., Megharaj, M., and Venkateswarlu, K. (2020). An overview of total petroleum hydrocarbons. Total Petroleum Hydrocarbons: Environmental Fate, Toxicity, and Remediation, Springer.
2. Remediation of soil and water contaminated with petroleum hydrocarbon: A review;Ossai;Environ. Technol. Innov.,2020
3. Effect of crude oil pollution on soil and aquatic bacteria and fungi;Nwadibe;J. Exp. Biol. Agric. Sci.,2020
4. Microbial production and consumption of hydrocarbons in the global ocean;Love;Nat. Microbiol.,2021
5. Phytotoxicity of petroleum hydrocarbons: Sources, impacts and remediation strategies;Haider;Environ. Res.,2021