A review on microwave assisted thermal remediation of hydrocarbons contaminated soil: Influential factors, mechanism, and prospective

IF 7.4 2区 工程技术 Q1 ENGINEERING, CHEMICAL
Yongxing Zhang, Hui Song, Jafar Zanganeh, Behdad Moghtaderi
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Abstract

This review provides an overview of current research on thermal methods for remediating soil contaminated with petroleum hydrocarbons, with a specific focus on microwave-assisted heating treatment. Initially, it broadly surveys and analyses existing studies on various thermal remediation techniques, in particular thermal desorption, pyrolysis, and incineration. The challenges of high temperatures, prolonged treatment durations, and substantial energy consumption underlying conventional heating methods were therefore summarised. Microwave heating approach was paid paramount attention in current review due to its distinct characteristics and widespread application in many fields, e.g. water treatment, solid waste management, and soil remediation. It offers distinct advantages over traditional thermal treatment methods, especially lower treatment temperatures, higher rates of pollutant recovery, and a very minimal disruption to soil biology. This paper then delves into the application and mechanisms of petroleum removal through microwave-assisted thermal remediation, and influential factors including soil and pollutant properties, the use of microwave-absorbing materials, and the effects of microwave radiation parameters were reviewed consequently. It can be concluded that microwave susceptors, irradiation power, and exposure duration, play crucial roles in optimising pollutant removal efficiency. While the technology offers significant benefits, including reduced energy consumption, a lower carbon footprint, and shorter remediation times, it is predominantly limited to ex situ applications due to constraints related to microwave penetration depth. Future research directions are proposed to enhance the effectiveness and practicality of microwave-assisted remediation in industrial contexts, emphasising the importance of scaling up laboratory findings to real-world scenarios.
微波辅助热修复碳氢化合物污染土壤综述:影响因素、机理和前景
本综述概述了目前对受石油碳氢化合物污染土壤的热修复方法的研究,特别侧重于微波辅助加热处理。首先,它对各种热修复技术,特别是热解吸、热解和焚烧的现有研究进行了广泛的调查和分析。因此,报告总结了传统加热方法所面临的高温、处理时间长和能耗大等挑战。微波加热方法因其独特的特点和在水处理、固体废物管理和土壤修复等多个领域的广泛应用,在本次综述中受到了高度关注。与传统的热处理方法相比,微波具有明显的优势,尤其是处理温度更低、污染物回收率更高,而且对土壤生物的破坏极小。本文随后深入探讨了微波辅助热修复技术的应用和去除石油的机理,并对土壤和污染物特性、微波吸收材料的使用以及微波辐射参数的影响等影响因素进行了综述。最后得出的结论是,微波吸收体、辐照功率和辐照时间在优化污染物去除效率方面起着至关重要的作用。虽然该技术具有降低能耗、减少碳足迹和缩短修复时间等显著优势,但由于微波穿透深度的限制,该技术主要局限于原位应用。本文提出了未来的研究方向,以提高微波辅助修复在工业环境中的有效性和实用性,并强调了将实验室研究成果推广到现实世界的重要性。
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来源期刊
Journal of Environmental Chemical Engineering
Journal of Environmental Chemical Engineering Environmental Science-Pollution
CiteScore
11.40
自引率
6.50%
发文量
2017
审稿时长
27 days
期刊介绍: The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.
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