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Sánchez-Castro I, Molina L, Prieto-Fernández MÁ, Segura A. Past, present and future trends in the remediation of heavy-metal contaminated soil - Remediation techniques applied in real soil-contamination events. Heliyon 2023; 9:e16692. [PMID: 37484356 PMCID: PMC10360604 DOI: 10.1016/j.heliyon.2023.e16692] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 03/28/2023] [Accepted: 05/24/2023] [Indexed: 07/25/2023] Open
Abstract
Most worldwide policy frameworks, including the United Nations Sustainable Development Goals, highlight soil as a key non-renewable natural resource which should be rigorously preserved to achieve long-term global sustainability. Although some soil is naturally enriched with heavy metals (HMs), a series of anthropogenic activities are known to contribute to their redistribution, which may entail potentially harmful environmental and/or human health effects if certain concentrations are exceeded. If this occurs, the implementation of rehabilitation strategies is highly recommended. Although there are many publications dealing with the elimination of HMs using different methodologies, most of those works have been done in laboratories and there are not many comprehensive reviews about the results obtained under field conditions. Throughout this review, we examine the different methodologies that have been used in real scenarios and, based on representative case studies, we present the evolution and outcomes of the remediation strategies applied in real soil-contamination events where legacies of past metal mining activities or mine spills have posed a serious threat for soil conservation. So far, the best efficiencies at field-scale have been reported when using combined strategies such as physical containment and assisted-phytoremediation. We have also introduced the emerging problem of the heavy metal contamination of agricultural soils and the different strategies implemented to tackle this problem. Although remediation techniques used in real scenarios have not changed much in the last decades, there are also encouraging facts for the advances in this field. Thus, a growing number of mining companies publicise in their webpages their soil remediation strategies and efforts; moreover, the number of scientific publications about innovative highly-efficient and environmental-friendly methods is also increasing. In any case, better cooperation between scientists and other soil-related stakeholders is still required to improve remediation performance.
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Affiliation(s)
- Iván Sánchez-Castro
- Estación Experimental Del Zaidín (CSIC), Profesor Albareda 1, 18008, Granada, Spain
| | - Lázaro Molina
- Estación Experimental Del Zaidín (CSIC), Profesor Albareda 1, 18008, Granada, Spain
| | - María-Ángeles Prieto-Fernández
- Misión Biolóxica de Galicia (CSIC), Sede Santiago de Compostela, Avda de Vigo S/n. Campus Vida, 15706, Santiago de Compostela, Spain
| | - Ana Segura
- Estación Experimental Del Zaidín (CSIC), Profesor Albareda 1, 18008, Granada, Spain
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Coupling Plant Biomass Derived from Phytoremediation of Potential Toxic-Metal-Polluted Soils to Bioenergy Production and High-Value by-Products—A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11072982] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Phytoremediation is an attractive strategy for cleaning soils polluted with a wide spectrum of organic and inorganic toxic compounds. Among these pollutants, heavy metals have attracted global attention due to their negative effects on human health and terrestrial ecosystems. As a result of this, numerous studies have been carried out to elucidate the mechanisms involved in removal processes. These studies have employed many plant species that might be used for phytoremediation and the obtention of end bioproducts such as biofuels and biogas useful in combustion and heating. Phytotechnologies represent an attractive segment that is increasingly gaining attention worldwide due to their versatility, economic profitability, and environmental co-benefits such as erosion control and soil quality and functionality improvement. In this review, the process of valorizing biomass from phytoremediation is described; in addition, relevant experiments where polluted biomass is used as feedstock or bioenergy is produced via thermo- and biochemical conversion are analyzed. Besides, pretreatments of biomass to increase yields and treatments to control the transfer of metals to the environment are also mentioned. Finally, aspects related to the feasibility, benefits, risks, and gaps of converting toxic-metal-polluted biomass are discussed.
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Muthusaravanan S, Sivarajasekar N, Vivek JS, Vasudha Priyadharshini S, Paramasivan T, Dhakal N, Naushad M. Research Updates on Heavy Metal Phytoremediation: Enhancements, Efficient Post-harvesting Strategies and Economic Opportunities. GREEN MATERIALS FOR WASTEWATER TREATMENT 2020. [DOI: 10.1007/978-3-030-17724-9_9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Liu HL, Chang JJ, Thia C, Lin YJ, Lo SC, Huang CC, Li WH. Characterizing an engineered carotenoid-producing yeast as an anti-stress chassis for building cell factories. Microb Cell Fact 2019; 18:155. [PMID: 31506091 PMCID: PMC6737703 DOI: 10.1186/s12934-019-1205-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 09/03/2019] [Indexed: 11/29/2022] Open
Abstract
Background A microorganism engineered for non-native tasks may suffer stresses it never met before. Therefore, we examined whether a Kluyveromyces marxianus strain engineered with a carotenoid biosynthesis pathway can serve as an anti-stress chassis for building cell factories. Results Carotenoids, a family of antioxidants, are valuable natural products with high commercial potential. We showed that the free radical removal ability of carotenoids can confer the engineered host with a higher tolerance to ethanol, so that it can produce more bio-ethanol than the wild type. Moreover, we found that this engineered strain has improved tolerance to other toxic effects including furfurals, heavy metals such as arsenate (biomass contaminant) and isobutanol (end product). Furthermore, the enhanced ethanol tolerance of the host can be applied to bioconversion of a natural medicine that needs to use ethanol as the delivery solvent of hydrophobic precursors. The result suggested that the engineered yeast showed enhanced tolerance to ethanol-dissolved hydrophobic 10-deacetylbaccatin III, which is considered a sustainable precursor for paclitaxel (taxol) bioconversion. Conclusions The stress tolerances of the engineered yeast strain showed tolerance to several toxins, so it may serve as a chassis for cell factories to produce target products, and the co-production of carotenoids may make the biorefinary more cost-effective.
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Affiliation(s)
- Hsien-Lin Liu
- Ph.D. Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taipei, Taiwan.,Biodiversity Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan.,Department of Life Sciences, National Chung Hsing University, No. 250, Kuo Kuang Rd, Taichung, 402, Taiwan
| | - Jui-Jen Chang
- Department of Medical Research, China Medical University Hospital, No. 91 Hsueh-Shih Road, Taichung, 402, Taiwan.,Biodiversity Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan
| | - Caroline Thia
- Department of Life Sciences, National Chung Hsing University, No. 250, Kuo Kuang Rd, Taichung, 402, Taiwan
| | - Yu-Ju Lin
- Biodiversity Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan
| | - Shou-Chen Lo
- Department of Life Sciences, National Chung Hsing University, No. 250, Kuo Kuang Rd, Taichung, 402, Taiwan
| | - Chieh-Chen Huang
- Ph.D. Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taipei, Taiwan. .,Department of Life Sciences, National Chung Hsing University, No. 250, Kuo Kuang Rd, Taichung, 402, Taiwan. .,Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, No. 145, Xingda Rd, South Dist, Taichung, 402, Taiwan.
| | - Wen-Hsiung Li
- Ph.D. Program in Microbial Genomics, National Chung Hsing University and Academia Sinica, Taipei, Taiwan. .,Biodiversity Research Center, Academia Sinica, 128 Academia Road, Sec. 2, Nankang, Taipei, 115, Taiwan. .,Department of Ecology and Evolution, University of Chicago, Chicago, IL, 60637, USA.
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Salimizadeh M, Shirvani M, Shariatmadari H, Mortazavi MS. Bentonite addition to a PCB-contaminated sandy soil improved the growth and phytoremediation efficiency of Zea mays L. and Alternanthera sessilis L. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 22:176-183. [PMID: 31424289 DOI: 10.1080/15226514.2019.1652564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, the removal of 17 selected PCBi congeners was assessed in a transformer oil-contaminated soil amended with bentonite clay powder applied at the three levels of 0, 2, and 4% and cultivated by Zea mays L. or Alternanthera sessilis L. in a pot experiment. Results showed that Z. mays and A. sessilis were able to reduce the residual concentrations of the PCBi congeners in the contaminated soil significantly (p < 0.05). The average reductions in the ƩPCBi due to Z. mays or A. sessilis cultivations were 34.3 and 21.4%, respectively, depending on initial soil ƩPCBi loading and plant growth period. Moreover, addition of bentonite led to significant (p < 0.05) enhancements in plant growth and dissipation of residual soil PCBi congeners under Z. mays and A. sessilis cultivations. Addition of 4% bentonite to the soil was found to have the greatest positive impact on PCBi removal so that average PCBi dissipations in the soil were 56.1 and 51.8% after growing Z. mays and A. sessilis, respectively. It might be concluded that the combined phytoremediation and bentonite addition is an effective technique for removing PCBi and remediating transformer oil-contaminated coarse-textured soils.
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Affiliation(s)
- Maryam Salimizadeh
- Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Mehran Shirvani
- Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Hossein Shariatmadari
- Department of Soil Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Mohammad Seddiq Mortazavi
- Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran
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Xue Z, Gao H. The Difference of Photosynthetic Responses to the Cadmium Stress Between a Wild Soybean (Glycine soja Sieb. et Zucc.) and a Cultivated Soybean. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 99:405-410. [PMID: 28752180 DOI: 10.1007/s00128-017-2143-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 07/14/2017] [Indexed: 06/07/2023]
Abstract
The effects of Cd on a halophyte of Doingying wild soybean (DY-03262) were studied by comparing it with a cultivated soybean (SN-11) via investigating photosynthetic activity, chlorophyll fluorescence and Cd concentrations in leaves after treatment with different concentrations of Cd (0, 50, and 100 μM) for 10 days. There were no significant differences in photosynthetic rate (PN), actual photochemical efficiency of PSII (ΦPSII), stomatal conductance (gs), and photochemical quenching (qP) between the both soybean species without Cd treatment, but they decreased greater in DY-03262 than that in SN-11 leaves after Cd treatment. The study demonstrated that the decrease in PN were significantly correlated with Cd concentrations in the leaves of both soybeans species. The greater decreases in photosynthetic activity of the DY-03262 were due to the higher Cd concentrations in its leaves.
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Affiliation(s)
- Zhongcai Xue
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China
- State Key Lab of Crop Biology, Shandong Agricultural University, Tai'an, 271018, China
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Huiyuan Gao
- State Key Lab of Crop Biology, Shandong Agricultural University, Tai'an, 271018, China.
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.
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Kiran BR, Prasad MNV. Ricinus communis L. (Castor bean), a potential multi-purpose environmental crop for improved and integrated phytoremediation. EUROBIOTECH JOURNAL 2017. [DOI: 10.24190/issn2564-615x/2017/02.01] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract
Phytoremediation is a plant based environmental cleanup technology to contain (rendering less toxic), sequester and degrade contaminated susbtrates. As can be seen from data metrics, it is gaining cosiderable importance globally. Phytoremediation approach is being applied for cleanup of inorganic (potentially toxic metals), organic (persistent, emergent, poly-acromatic hydrocarbons and crude oil etc.) and co-contaminated (mixture of inorganic and organic) and/or polluted sites globally. Recently new approaches of utilizing abundantly available natural organic amendments have yielded significant results. Ricinus communis L. (Castor bean) is an important multipurpose crop viz., Agricultural, Energy, Environmental and Industrial crop. The current status of knowledge is abundant but scattered which need to be exploited for sustainable development. This review collates and evaluates all the scattered information and provides a critical view on the possible options for exploiting its potential as follows: 1. Origin and distribution, 2. Lead toxicity bioassays, 3. Progress in arbuscular mycorrhizal fungi-assisted phytoremediation, 4. Promising bioenergy crop that can be linked to pytoremediation, 5. A renewable source for many bioproducts with rich chemical diversity, 6. It is a good biomonitor and bioindicator of atmospheric pollution in urban areas, 7. Enhanced chelate aided remediation, 8. Its rhizospheric processes accelerate natural attenuation, 9. It is suitable for remediation of crude oil contaminated soil, 10. It is an ideal candidate for aided phytostabilization, 11. Castor bean is a wizard for phytoremediation and 12. Its use in combined phytoextraction and ecocatalysis. Further, the knowledge gaps and scope for future research on sustainable co-generation of value chain and value addition biobased products for sustainable circular economy and environmental security are described in this paper.
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Affiliation(s)
- Boda Ravi Kiran
- Department of Plant Sciences, University of Hyderabad, Central University P.O., Gachibowli, Hyderabad, Telangana , India
| | - Majeti Narasimha Vara Prasad
- Department of Plant Sciences, University of Hyderabad, Central University P.O., Gachibowli, Hyderabad, Telangana , India
- Visiting Professor School of Environment, Resources and Development (SERD), Room E120 Asian Institute of Technology (AIT), Klong Luang, Pathumthani , Thailand
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