Mobilization of contaminants: Potential for soil remediation and unintended consequences
- Authors
- Kumar, Manish; Bolan, Nanthi; Jasemizad, Tahereh; Padhye, Lokesh P.; Sridharan, Srinidhi; Singh, Lal; Bolan, Shiv; O'Connor, James; Zhao, Haochen; Shaheen Sabry M.; Song, Hocheol; Siddique, Kadambot H. M; Wang, Hailong; Kirkham, M. B.; Rinklebe, Joerg
- Issue Date
- Sep-2022
- Publisher
- ELSEVIER
- Keywords
- Mobilization; Bioremediation; Phytoremediation
- Citation
- SCIENCE OF THE TOTAL ENVIRONMENT, v.839, pp.1 - 28
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENCE OF THE TOTAL ENVIRONMENT
- Volume
- 839
- Start Page
- 1
- End Page
- 28
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/188717
- DOI
- 10.1016/j.scitotenv.2022.156373
- ISSN
- 0048-9697
- Abstract
- taminants including organic chemicals and potentially toxic elements (PTEs) which enter the food chain, primarily through leaching to potable water sources, plant uptake, and animal transfer. A range of soil amendments are used to manage the mobility of contaminants and subsequently their bioavailability. Various soil amendments, like desorbing agents, surfactants, and chelating agents, have been applied to increase contaminant mobility and bioavailability. These mobilizing agents are applied to increase the contaminant removal though phytoremediation, bioremediation, and soil washing. However, possible leaching of the mobilized pollutants during soil washing is a major limitation, particularly when there is no active plant uptake. This leads to groundwater contamination and toxicity to plants and soil biota. In this context, the present review provides an overview on various soil amendments used to enhance the bioavailability and mobility of organic and inorganic contaminants, thereby facilitating increased risk when soil is remediated in polluted areas. The unintended consequences of the mobilization methods, when used to remediate polluted sites, are discussed in relation to the leaching of mobilized contaminants when active plant growth is absent. The toxicity of targeted and non-targeted contaminants to microbial communities and higher plants is also discussed. Finally, this review work summarizes the existing research gaps in various contaminant mobi
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