Chelating extraction of copper from soil using s‐carboxymethylcysteine

Hong, Andrew; Chen, Ting-Chien; Okey, Robert W.

doi:10.2175/106143095x133202

Cited by 18 publications

(9 citation statements)

References 21 publications

(17 reference statements)

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“…The removal of toxic metal ions and recovery of valuable ions from mine wastewaters, soils and waters have been important in economic and environmental problems [1][2][3][4]. Heavy metals and other metal ions exist as contaminants in aqueous waste streams of many industries, such as tanneries and mining.…”

Section: Introductionmentioning

confidence: 99%

Removal of lead from aqueous solution using Syzygium cumini L.: Equilibrium and kinetic studies

King

Rakesh

Beenalahari

et al. 2007

Journal of Hazardous Materials

120

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Section: Introductionmentioning

confidence: 99%

Removal of lead from aqueous solution using Syzygium cumini L.: Equilibrium and kinetic studies

King

Rakesh

Beenalahari

et al. 2007

Journal of Hazardous Materials

120

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“…Hong et al (1995) showed that chelate S-carbonxymethylcysteine (SCMC) removed and released copper reversibly. Based on systematic column-washing experiments, Davis and Singh (1995) concluded that efficient soil washing occurred when chelating agents are used at low flow rates.…”

Section: Soil Pollutant Removal By Surfactants and Complexing Agentsmentioning

confidence: 99%

Surfactant-Enhanced Removal of Cu (II) and Zn (II) from a Contaminated Sandy Soil

Ramamurthy

et al. 2007

Water Air Soil Pollut

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Batch tests were conducted to know the effectiveness of using surfactants only and surfactants with a complexing agent to remove Cu (II) and Zn (II) from an artificially contaminated sandy soil. SDS (sodium dodecyl sulfate), AOT (alpha-olefin sulfonate) and Tx-100 (Triton X-100) were the surfactants selected as the washing liquids. Complexing agent EDTA (ethylenediaminetetraacetic acid) was also selected for washing the soil. To avoid external factors from interfering with the cleaning process, artificial soil formed by a mixture of clean sand and bentonite was used to form contaminated soil samples. The amount of organic matter present was insignificant. Compared to extraction by distilled water, tests indicated that a six-fold increase in copper extraction occurred due to the presence of surfactants and/or the complexing agent EDTA. Compared to extraction by distilled water, zinc extraction by surfactants and or the complexing agent EDTA was nearly 1.2 to 1.3 times more. Effects of competition as well as interference associated with the adsorption and desorption of these metals are also very briefly reported.

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“…To increase the solubility of metals, chelating compounds have been used in soil and nutrient solutions (Hong et al 1995). Once complexed with a chelating compound, the target heavy metals may be leached or extracted from the soil and potentially be recovered.…”

mentioning

confidence: 99%

Plant Uptake of Depleted Uranium from Manure-Amended and Citrate Treated Soil

Sevostianova

Lindemann

Ulery

et al. 2010

International Journal of Phytoremediation

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Six plant species were tested for their ability to accumulate depleted uranium in their above-ground biomass from deployed munitions contaminated soil in New Mexico. In greenhouse experiments, Kochia (Kochia scoparia L. Schrad.) and pigweed (Amaranthus retroflexus L) were grown with steer manure added at rates of 22.4, 44.8, and 89.6 Mg ha(-1). Citric acid and glyphosate (N-(phosphonomethyl) glycine) applied at the end of the growing season increased DU concentrations from 2.5 to 17 times. Leaf and stem DU concentrations in kochia increased from 17.0 to 41.9 mg kg(-1) and from 3.5 to 18.0 mg kg(-1), respectively. In pigweed, leaf and stem DU concentrations increased from 1.0 to 17.3 and from 1.0 to 4.7 mg kg(-1), respectively. Manure generally decreased or had no effect on DU uptake. The effect of citric acid and ammonium citrate on DU uptake by kochia, sunflower (Helianthus annuus L), and sweet corn (Zea mays L) was also studied. Ammonium citrate was just as effective in enhancing DU uptake as citric acid. This implies that the citrate ion is more important in DU uptake and translocation than the solubilization of DU through acidification. In both experiments, leaves had higher DU concentrations than stems.

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Chelating extraction of copper from soil using s‐carboxymethylcysteine

Cited by 18 publications

References 21 publications

Removal of lead from aqueous solution using Syzygium cumini L.: Equilibrium and kinetic studies

Removal of lead from aqueous solution using Syzygium cumini L.: Equilibrium and kinetic studies

Surfactant-Enhanced Removal of Cu (II) and Zn (II) from a Contaminated Sandy Soil

Plant Uptake of Depleted Uranium from Manure-Amended and Citrate Treated Soil

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