The potential of Lolium perenne for revegetation of contaminated soil from a metallurgical site

Arienzo, Michele; Adamo, Paola; Cozzolino, Vincenza

doi:10.1016/s0048-9697(03)00435-2

Cited by 154 publications

(76 citation statements)

References 20 publications

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“…These heavy metals may be released via the erosion of wind and water and can ultimately enter the food chain (Navarro et al 2008). Today, great efforts are being made to remediate polluted mining sites, in which revegetation or phytostabilization is considered to be an efficient way to achieve long-term reclamation (Arienzo et al 2004;Mendez and Maier 2008a, b). However, disadvantageous consequences after revegetation cover may arise due to organic acids excreted by the roots and/or decomposed by the litters of inhabiting plants.…”

Section: Introductionmentioning

confidence: 99%

Interaction of organic acids and pH on multi-heavy metal extraction from alkaline and acid mine soils

Ding

Song

Feng

et al. 2013

Int. J. Environ. Sci. Technol.

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Vegetation at mining sites can produce increased heavy metal leaching by the organic acids and protons originating from root secretion and litter degradation. Batch experiments were conducted to investigate the effects of organic acids and pH on the extraction of Pb, Cd, Zn and Cu from an alkaline mine soil (sampled from a mining site of Chenzhou City, Hunan Province) and an acid mine soil (sampled from a mining site of Daxin county, Guangxi Province). The results showed that in the presence of organic acids (acetic, oxalic, malic, fumaric, tartaric and citric acids) at pH 7, the extraction of Pb, Cd, Zn and Cu from the acid mine soil was much higher than that from the alkaline mine soil, in which only citric acid with higher concentration was capable of extracting some heavy metals. Citric acid had the strongest ability in extracting heavy metals, followed by oxalic acid. Heavy metal extraction dramatically decreased with increasing pH. Moreover, at low pH, oxalic acid promoted the risk of Cu leaching; at high pH, the leaching of Pb, Zn, Cd and Cu was enhanced by both oxalic and citric acids. This indicated that those plants, which can produce substantial citric acid or oxalic acid by root secretion and litter degradation, should not be selected for the revegetation of mining sites.

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Section: Introductionmentioning

confidence: 99%

Interaction of organic acids and pH on multi-heavy metal extraction from alkaline and acid mine soils

Ding

Song

Feng

et al. 2013

Int. J. Environ. Sci. Technol.

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“…Moreover, Smith and Bradshaw [26] defined this species as a facultative metallophyte, this plant produces high dry matter yields and well accumulates metals [27]. Additionally, Arienzo et al [28] showed that a healthy vegetative cover using L. perenne could be installed on metal-polluted soils. Phytostabilization may be supported using a variety of additives, including composts and mineral sorbents [29].…”

Section: Introductionmentioning

confidence: 99%

Pilot Scale Use of Compost Combined with Sorbents to Phytostabilize Ni-Contaminated Soil Using Lolium perenne L.

Radziemska

Vaverková

Mazur

2017

Waste Biomass Valor

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Purpose An experiment was conducted to evaluate the potential use of a combination of food waste compost with sorbents as immobilizing agents to aid the phytostabilization of Ni-contaminated soil, using Lolium perenne L. (L. perenne). Methods The content of Ni in plants, i.e. total and extracted by 0.01 M CaCl 2 , was determined using the spectrophotometry method. Tests for the phytotoxicity of food waste compost were carried out using Phytotoxkit ™ tests. Results The compost phytotoxicity tests showed that the growth of the roots of L. perenne was slightly stimulated for a compost concentration of 25%, showing the positive impact of this material on plant growth. The biomass of L. perenne in particular organs, Ni content and the properties of soil depended on the dose of a Ni contaminant and the type of mineral and organic mixture incorporated into the soil. Conclusions Ni accumulated predominantly in the roots of the L. perenne. The greatest increase pH was observed after compost with chalcedonite mixture was added to the soil. The application of mineral and organic mixture, containing compost from food wastes and chalcedonite as a soil amendment, tended to reduce the soil total and mobile fraction of Ni more in comparison to the un-amended soil. Graphical AbstractKeywords Aided phytostabilization · Nickel contaminated soil · Food waste compost · Sorbents Statement of noveltyProblems concerning food waste management and disposal worldwide are currently among the most difficult and most topical issues in the organized waste management system. Apart from the least appropriate placing of food waste in landfills, the methods for disposal/recycling of food waste are the production of animal feed and composting. It is considered that the compost may be recycled for the removal of heavy metals from contaminated soils through the use of organic acids, microorganisms and nutrients found in composts. In this manuscript, we show that the mixture of compost from food waste and mineral sorbents (chalcedonite, halloysite), are a promising amendments for co-remediation methods of nickel contaminated soils. These novel soil amendments could be used for enhanced phytostabilization methods.

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“…As model plants, Lolium multiflorum and Lolium perenne species have been frequently studied because of their abilities to survive in metal-contaminated soil and to accumulate metals (Marseille et al, 2000;Kiss et al, 2002;Palazzo et al, 2003;Arienzo et al, 2004;Caggiano et al, 2005;Guo and Wang, 2009). They contain extensive root systems with high biomass, have high adaptability and low-cost management, and possess the ability to accumulate Cd (Sabreen and Sugiyama, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of elevated CO2 levels on root morphological traits and Cd uptakes of two Lolium species under Cd stress

Jia

Tang²,

Ju³

et al. 2011

J. Zhejiang Univ. Sci. B

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This study was conducted to investigate the combined effects of elevated CO 2 levels and cadmium (Cd) on the root morphological traits and Cd accumulation in Lolium multiflorum Lam. and Lolium perenne L. exposed to two CO 2 levels (360 and 1 000 μl/L) and three Cd levels (0, 4, and 16 mg/L) under hydroponic conditions. The results show that elevated levels of CO 2 increased shoot biomass more, compared to root biomass, but decreased Cd concentrations in all plant tissues. Cd exposure caused toxicity to both Lolium species, as shown by the restrictions of the root morphological parameters including root length, surface area, volume, and tip numbers. These parameters were significantly higher under elevated levels of CO 2 than under ambient CO 2 , especially for the number of fine roots. The increases in magnitudes of those parameters triggered by elevated levels of CO 2 under Cd stress were more than those under non-Cd stress, suggesting an ameliorated Cd stress under elevated levels of CO 2 . The total Cd uptake per pot, calculated on the basis of biomass, was significantly greater under elevated levels of CO 2 than under ambient CO 2 . Ameliorated Cd toxicity, decreased Cd concentration, and altered root morphological traits in both Lolium species under elevated levels of CO 2 may have implications in food safety and phytoremediation.

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The potential of Lolium perenne for revegetation of contaminated soil from a metallurgical site

Cited by 154 publications

References 20 publications

Interaction of organic acids and pH on multi-heavy metal extraction from alkaline and acid mine soils

Interaction of organic acids and pH on multi-heavy metal extraction from alkaline and acid mine soils

Pilot Scale Use of Compost Combined with Sorbents to Phytostabilize Ni-Contaminated Soil Using Lolium perenne L.

Effects of elevated CO2 levels on root morphological traits and Cd uptakes of two Lolium species under Cd stress

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