An overview on bioremediation technologies for soil pollution in E-waste dismantling areas

• Published in: Journal of environmental chemical engineering 2022-06, Vol.10 (3), p.107839, Article 107839
• Main Authors: Li, Xiao, Wu, Yufeng, Tan, Zhe
• Format: Article
• Language: English
• Subjects: Bioremediation; E-waste; Heavy metals; Microbial degradation; Organics; Phytoremediation
• ISSN: 2213-3437; 2213-3437
• DOI: 10.1016/j.jece.2022.107839

In the past few decades, globally, the large-scale transfer and dismantling of e-waste have promoted the recycling of resources, but it has also adversely affected the soil environment. Hazardous organics (represented by polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and polybrominated diphenyl ethers), and heavy metals were produced in the process of recycling corresponding materials from different parts of electrical and electronic products. Thus far, bioremediation technology has achieved improved systematization, extensivity, and depth of research because of its low cost and environmental friendliness, and has made substantial progress in the field of organic or heavy metal-contaminated soil. However, only a few studies and applications of bioremediation technology exist in the remediation of soil contaminated by e-waste. In this review, the number of published papers and the cooperation relationship between authors, institutions, and countries were analyzed through literature metrology methods, based on which major advancements on microbial degradation and phytoremediation were discussed. In addition, the future prospects of bioremediation technology for organic and heavy metal-contaminated soils in research and field-applications were also proposed. This review provides a reference for the bioremediation of e-waste-contaminated soils by promoting the treatment of such soils and the restoration of soil ecology. [Display omitted] •Typical organics and heavy metals in recycling and dismantling of electronic waste were studied.•E-waste-contaminated soil remediated by bioremediation technology was discussed.•Literature metrology on the bioremediation of characteristic pollutants was analyzed.•Relevant advancements on microbial degradation and phytoremediation were reviewed.•Future prospects on bio-technologies remediating e-waste-contaminated soils were discussed.