Assessment of site contaminated soil remediation based on an input output life cycle assessment. (1st August 2020)

• Record Type: Journal Article
• Authors: Chen, Chang; Zhang, Xuemei; Chen, Jiaao; Chen, Fangyuan; Li, Jiahao; Chen, Yuchi; Hou, Haobo; shi, Feng
• Is Part Of: Journal of cleaner production. Volume 263(2020)
• Publication Date: 2020-08-01
• Subjects: Contaminated land -- IO-LCA -- Soil remediation -- Sustainability; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2020.121422
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: Soil pollution is expanding, and soil remediation projects are underway around the world. To make the soil remediation more sustainable, soil remediation project impact assessments have been developed. In this study, the input-output life cycle assessment (IO-LCA) method is used to quantify the environmental, social, and economic impacts of four soil remediation schemes based on three soil remediation techniques (in situ encapsulation (ISE), ex situ thermal desorption (ESTD), and in situ thermal desorption (ISTD)) in an industrial contaminated area of China. The evaluation results showed that the ISE technology was the technology with the lowest cost and the best environmental impact, but it is only suitable for deep contaminated soils. ISTD was the best technique for a comprehensive evaluation. ISE + ESTD were the most suitable alternatives for a project. These evaluation methods will allow soil remediation decision makers to make informed choices. Soil remediation projects can be optimized by selecting appropriate energy sources and reducing NOX and SO2 emissions from natural gas supplies. Graphical abstract: Image 1 Highlights: Input-output life cycle assessment model was used for soil remediation. Impact of soil remediation on entire industry chain was evaluated. In-situ encapsulation technology has the minimal environmental impact. In-situ thermal desorption technology can acquire greatest socio-economic benefit.