Recent advancement in enhanced soil flushing for remediation of petroleum hydrocarbon-contaminated soil: a state-of-the-art review

IF 8.6 1区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Reviews in Environmental Science and Bio/Technology Pub Date : 2023-05-29 DOI:10.1007/s11157-023-09657-0

Ju-Hyeok Kwon, Min-Kyu Ji, Ramesh Kumar, Md. Monjurul Islam, Moonis Ali Khan, Young-Kwon Park, Krishna Kumar Yadav, Roozbeh Vaziri, Jae-Hoon Hwang, Woo Hyoung Lee, Yong-Tae Ahn, Byong-Hun Jeon

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引用次数: 4

Abstract

Remediation of persistent organic pollutants in soil especially total petroleum hydrocarbon (TPH) is of global concern due to its toxicity and health implications. Soil flushing has been considered a promising technique among in-situ technologies for treating non-volatile TPH-contaminated soils because it weakens the interaction between hydrocarbons and soil particles to enhance pollutant mobilization efficiency. It is still challenging to optimize the soil flushing treatment because the overall efficacy significantly depends on the environmental characteristics of the subsurface. Advanced soil flushing strategies (e.g., integrating with oxidation, air sparging, and nanoparticles) and novel flushing solutions are discussed to overcome the limitations of the existing process during the remediation of soil systems contaminated with recalcitrant TPH. The flushed-out toxic chemicals comprise a large amount of waste solution, creating another pollutant. The present review summarizes the enhanced soil flushing techniques, and critically discusses their advantages and disadvantages, and addresses follow-up remediation of the generated wash solution containing toxic substances for its safe discharge. Fundamental information on soil flushing is discussed to overcome the challenges encountered during field application such as poor efficiency, high operating cost, and a large amount of generated secondary wastewater.

Graphical abstract

Abstract Image

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加强土壤冲洗修复石油烃污染土壤的最新进展

土壤中持久性有机污染物特别是石油总烃(TPH)的修复因其毒性和健康影响而受到全球关注。土壤冲洗技术是一种很有前途的原位处理非挥发性tph污染土壤的技术，因为它可以减弱碳氢化合物与土壤颗粒之间的相互作用，提高污染物的动员效率。由于土壤冲洗处理的总体效果很大程度上取决于地下环境特征，因此对其进行优化仍然具有挑战性。讨论了先进的土壤冲洗策略(例如，结合氧化、空气喷射和纳米颗粒)和新的冲洗解决方案，以克服在修复被顽固性TPH污染的土壤系统中现有工艺的局限性。被冲掉的有毒化学物质构成了大量的废液，形成了另一种污染物。本文综述了强化土壤冲洗技术，批判性地讨论了它们的优缺点，并对产生的含有毒物质的洗涤液进行了后续修复，以使其安全排放。讨论了土壤冲洗的基本信息，以克服在现场应用中遇到的效率低、运行成本高、产生二次废水量大等挑战。图形抽象

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来源期刊

Reviews in Environmental Science and Bio/Technology Environmental Science-Waste Management and Disposal

CiteScore

25.00

自引率

1.40%

发文量

审稿时长

4.5 months

期刊介绍： Reviews in Environmental Science and Bio/Technology is a publication that offers easily comprehensible, reliable, and well-rounded perspectives and evaluations in the realm of environmental science and (bio)technology. It disseminates the most recent progressions and timely compilations of groundbreaking scientific discoveries, technological advancements, practical applications, policy developments, and societal concerns encompassing all facets of environmental science and (bio)technology. Furthermore, it tackles broader aspects beyond the natural sciences, incorporating subjects such as education, funding, policy-making, intellectual property, and societal influence.