Chapter 3 Remediation techniques

Bradl, H.; Xenidis, Anthimos

doi:10.1016/s1573-4285(05)80022-5

Cited by 59 publications

(45 citation statements)

References 128 publications

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“…The soil chemical properties significantly affect the distribution of the metals among the different soil fractions (Mocko and Waclawek 2004). For instance, pH is an important factor influencing the availability of metals in the soil for plant uptake (Prasad andde Oliveira Freitas 2003, Bradl andXenidis 2005). Jones (2001) stated that the pH CaCl2 value is lower than pH H20 and this was evident in this study.…”

Section: Root-zone Soil Ph and Concentration Of CD And Crsupporting

confidence: 50%

“…Of the 32 plant root zone soils, only 6, or about 19%, had Cd. Cd is mainly used in alloys, in electroplating, in pigments, in batteries, and in protecting steel iron and steel against corrosion, and although it has been restricted worldwide due to its environmental impact, it can still be found in many consumer goods (Bradl et al 2005).…”

Section: Bioconcentration Factor (Bcf) and Transfer Factor (Tf)mentioning

confidence: 99%

“…For Cr, the commonly observed mean concentration in soils is 40 ppm (or mg kg -1 ) with a range of 10-150 ppm, and in sewage sludge, the average Cr concentration is 74 ppm with a range of 2-1100 ppm (Bradl et al 2005). Cr is used in a wide variety of industrial applications including the paper industry, chemical industry, in fertilizers, metal works and foundries, leather tanning, and finishing, among others (Bradl et al 2005).…”

Section: Bioconcentration Factor (Bcf) and Transfer Factor (Tf)mentioning

confidence: 99%

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The response of plants growing in a landfill in the Philippines towards cadmium and chromium and its implications for future remediation of metal-contaminated soils

Nazareno¹,

Buot²

2015

J. Ecol. Environ.

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During several visits to the Cebu City landfill in the Philippines, plants were observed growing within the area, including on top of the garbage piles. Studying the response of these plants is important in assessing which can be used in remediating metal contaminated soils. This study aimed to determine whether the plants in the Cebu City landfill excluded or accumulated cadmium (Cd) and chromium (Cr) in the plant tissues. The floristic composition of the landfill was analyzed prior to the sample collection. The samples were acid-digested before the desired elements were measured using atomic absorption spectrophotometry (AAS). The Cd and Cr concentrations in the plant root-zone soil were also measured using AAS. The results indicated that the landfill substrate was generally acidic based on the results of the pH measurement. Of the 32 plant species sampled, Cyperus odoratus showed potential for Cd uptake and internal transfer; Cenchrus echinatus, Vernonia cinerea and Terminalia catappa for Cr uptake, and Cynodon dactylon for Cr internal transfer. The plants in the landfill differed in their response towards the heavy metals. To confirm the behavior of C. odoratus towards Cd, and C. echinatus, C. dactylon, V. cinerea, and T. catappa towards Cr, controlled experiments are recommended, as the plant samples analyzed were collected from the field.

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Section: Root-zone Soil Ph and Concentration Of CD And Crsupporting

confidence: 50%

Section: Bioconcentration Factor (Bcf) and Transfer Factor (Tf)mentioning

confidence: 99%

Section: Bioconcentration Factor (Bcf) and Transfer Factor (Tf)mentioning

confidence: 99%

See 1 more Smart Citation

The response of plants growing in a landfill in the Philippines towards cadmium and chromium and its implications for future remediation of metal-contaminated soils

Nazareno¹,

Buot²

2015

J. Ecol. Environ.

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“…So far, numerous physical remediation methods have been developed and largely used (Mulligan et al . 2001; Bradl & Xenidis 2005). In the past decade, however, phytoremediation, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…HMs are inorganic pollutants that cannot be degraded, but they can either be stabilized into less bioavailable forms in soils or extracted from soils (Pilon-Smits 2005). So far, numerous physical remediation methods have been developed and largely used (Mulligan et al 2001;Bradl & Xenidis 2005). In the past decade, however, phytoremediation, i.e.…”

Section: Introductionmentioning

confidence: 99%

Merging methods in molecular and ecological genetics to study the adaptation of plants to anthropogenic metal‐polluted sites: implications for phytoremediation

Pauwels¹,

Willems²,

Roosens³

et al. 2007

Molecular Ecology

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Metallophyte species that occur naturally on metal-enriched soils represent major biological resources for the improvement of phytoremediation, a benign and cost-effective technology that uses plants to clean up anthropogenic metal-polluted soils. Within the last decade, molecular genetic studies carried out on several model organisms (including Arabidopsis halleri) have considerably enhanced our understanding of metal tolerance and hyperaccumulation in plants, but the identification of the genes of interest for phytoremediation purposes remains a challenge. To meet this challenge, we propose to combine '-omics' with molecular ecology methods. Using A. halleri, we confronted molecular genetic results with: (i) within-species polymorphism and large-scale population differentiation for zinc tolerance; (ii) the demographical context (e.g. migration pattern) of the species for zinc tolerance evolution; (iii) the Quantitative Trait Loci (QTL) analysis of the genetic architecture for zinc tolerance; and (iv) the fine-scale dissection of identified QTL regions, to discuss more precisely the nature of the genes potentially involved in the adaptation to zinc-polluted soils.

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