Assessment of fly ash-aided phytostabilisation of highly contaminated soils after an 8-year field trial

Lopareva-Pohu, Alena; Pourrut, Bertrand; Waterlot, Christophe; Garçon, Guillaume; Bidar, Géraldine; Pruvot, Christelle; Shirali, Pirouz; Douay, Francis

doi:10.1016/j.scitotenv.2010.10.040

Cited by 83 publications

(34 citation statements)

References 35 publications

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“…The highest pH value was obtained with a rate of 50 g CFA kg À1 soil (5%). Similar increases in soil pH after CFA application have also been reported in other studies (e.g., Tsadilas et al, 2009a;Tsadilas, 2010, 2013;Lopareva-Pohu et al, 2011). Appropriately selected CFA (alkaline for acidic soils and acidic for alkaline soils) can thus be used for soil pH correction purposes.…”

Section: Chemical Propertiessupporting

confidence: 82%

“…Another study where CFA was used to aid phytostabilisation of a site highly contaminated with PTEs showed similar results. Eight years after amending the site with CFA and planting with trees, the findings show that soil extractable Cd, Pb and Zn were much lower than in the reference control, at least partly due to soil pH buffering effect of the CFA (Lopareva-Pohu et al, 2011).…”

Section: Metal Contaminated Soilsmentioning

confidence: 89%

“…Likewise, the use of alkaline CFA is likely to help in the remediation of metal contaminated sites by immobilization of metals via raising soil pH and formation of stable metal phases (Hooda and Alloway, 1996;Hooda et al, 1997;Mench et al, 2006;Hooda, 2010;Lopareva-Pohu et al, 2011;Kim et al, 2012;Skousen et al, 2013;Ram and Masto, 2014). However, it is important that such a use of CFA should not lead to further elevation of total metal levels in the soils.…”

Section: Discussionmentioning

confidence: 99%

“…One of the criticisms of such studies is that they are often short-term and lack field testing. Two recent long-term field studies by Mench et al (2006) and Lopareva-Pohu et al (2011) dispel at least some of such criticisms. The effectiveness of CFA for in situ remediation of a Cd-and Ni-contaminated soil in a longterm field experiment was assessed by Mench et al (2006).…”

Section: Metal Contaminated Soilsmentioning

confidence: 99%

“…Certain industrial waste products may have potential as inexpensive metal and pesticides sorbents (Bailey et al, 1999;Gupta et al, 2002;Babel and Kurniawan, 2003;Lu et al, 2005;Karatas, 2012;. Activated charcoal is the most commonly used sorbent for removing pesticide residue from contaminated waters (Jiang et al, 2006;Lopez-Ramon et al, 2007). However, because of the high cost of activated charcoal, its use at large scale is very limited.…”

Section: Organic Micro-pollutants Contaminated Soilsmentioning

confidence: 99%

See 4 more Smart Citations

Opportunities and challenges in the use of coal fly ash for soil improvements – A review

Shaheen

Hooda

Tsadilas

2014

Journal of Environmental Management

249

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Section: Chemical Propertiessupporting

confidence: 82%

Section: Metal Contaminated Soilsmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Metal Contaminated Soilsmentioning

confidence: 99%

Section: Organic Micro-pollutants Contaminated Soilsmentioning

confidence: 99%

See 3 more Smart Citations

Opportunities and challenges in the use of coal fly ash for soil improvements – A review

Shaheen

Hooda

Tsadilas

2014

Journal of Environmental Management

249

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Changes in Enzyme Activities and Microbial Community Structure in Heavy Metal‐Contaminated Soil under in Situ Aided Phytostabilization

Wasilkowski

Mrozik

Piotrowska‐Seget

et al. 2014

CLEAN Soil Air Water

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The effect of lignite and lime on the structural biodiversity and enzyme activities of soil microorganisms in heavy metal‐contaminated soil during an aided phytostabilization was studied. Over the experiment the amount of bioavailable fractions of Zn and Cd declined threefold and in the end reached the values of 87.8 and 4.2 mg kg−1 for Zn and Cd, respectively. The activities of enzymes increased markedly in soil under aided phytostabilization. On the last sampling day the activities of dehydrogenase, alkaline and acid phosphatase, as well urease, were 15‐, 8‐, 4‐, and 19‐fold higher as compared to the initial values. The analyses of fatty acid methyl ester and phospholipid fatty acid (PLFA) patterns showed a shift in the structure of microbial populations in the treated soil as compared to untreated soil. In general, the microbial biomass of total, Gram‐positive and Gram‐negative bacteria (GNBB), as well actinomycetes and fungi (FB), was higher in the soil under aided phytostabilization in comparison with control soil. The highest biomass increase from 2.3 to 2.9 and from 0.4 to 0.8 nmol PLFA g−1 soil (dry weight), was found for GNBB and FB, respectively. Phytostabilization supported by lignite and lime appeared to be an effective method to decrease Zn and Cd content in heavy metal‐contaminated soil.

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Developing sustainable measures to restore fly‐ash contaminated lands: Current challenges and future prospects

Upadhyay

Edrisi

2021

Land Degrad Dev

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Land degradation is one of the major global environmental issues that need serious attention. The land itself is a complex system regulating myriads of processes. Any perturbation in these processes would undoubtedly lead to the stimulation of land degradation. Among these, fly-ash (FA) dumping is one of the usual practices, which has been adopted to overcome land-use disruption and other health hazards. However, this practice has become a driving factor for FA-induced land degradation.Therefore, in purview to tackle this issue, the present article aimed to identify and suggest sustainable practices to restore and manage FA-contaminated sites. As a preliminarily it deals with the systematic exploration and identification of FA-based and associated contaminated lands via geospatial technology with a brief focus on assessing its different contaminant profiles in the FA and soil systems. Further, this moreover, the article emphasizes the need to identify identifying the potential local plant species in the FA-contaminated regions that can meet the local people's demands. Following this we suggest appropriate sustainable approaches to expedite the restoration of FA-contaminated lands and highlight the critical bottlenecks during ground implementation. Our article aimed to unravel ways to address the aforementioned bottlenecks to develop an efficient restoration enterprise during the UN Decade on Ecosystem Restoration (2021Restoration ( -2030.

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Assessment of fly ash-aided phytostabilisation of highly contaminated soils after an 8-year field trial

Cited by 83 publications

References 35 publications

Opportunities and challenges in the use of coal fly ash for soil improvements – A review

Opportunities and challenges in the use of coal fly ash for soil improvements – A review

Changes in Enzyme Activities and Microbial Community Structure in Heavy Metal‐Contaminated Soil under in Situ Aided Phytostabilization

Developing sustainable measures to restore fly‐ash contaminated lands: Current challenges and future prospects

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