Degradation of organolead species in aqueous solutions by electron beam irradiation

Unob, Fuangfa; Hagège, Agnès; Lakkis, D.; Leroy, M. J. F.

doi:10.1016/s0043-1354(02)00620-6

Cited by 14 publications

(9 citation statements)

References 15 publications

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“…Organolead compounds are more toxic than inorganic lead, and their toxicity generally increases with the degree of alkylation, according to the following sequence: TEL > TREL > DEL [14,16,17].…”

Section: Organolead Compoundsmentioning

confidence: 99%

Feasibility study for the remediation of groundwater contaminated by organolead compounds

Andreottola

Dallago

Ferrarese

2008

Journal of Hazardous Materials

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Section: Organolead Compoundsmentioning

confidence: 99%

Feasibility study for the remediation of groundwater contaminated by organolead compounds

Andreottola

Dallago

Ferrarese

2008

Journal of Hazardous Materials

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“…Organolead (OL), organotin (OT), and organomercury (OM) compounds are highly toxic [1,2]. Their presence in environmental compartments is of great concern.…”

Section: Introductionmentioning

confidence: 99%

“…Organolead compounds are present in the environment mostly as a result of tetraalkyllead compound used as antiknock additives in gasoline, but there are additional sources of alkyllead provided by the natural methylation of inorganic lead [1,3].…”

Section: Introductionmentioning

confidence: 99%

“…They can also spill into the terrestrial environment during transport and be directly scavenged from the atmosphere by rainfall ( [1,4,5], see also The Lead Biogeochemical Cycle by R. Greenaway, 2005, www.mona.uwi.edu).…”

Section: Introductionmentioning

confidence: 99%

“…The toxicity of alkyllead decreases in the sequence R 4 Pb A R 3 Pb + A R 2 Pb 2+ with R = -CH 3 or -C 2 H 5 , methylated lead species being less toxic than the ethylated compounds [6,8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Speciation of alkyllead in aqueous samples with application of liquid membrane probe for extraction and preconcentration

Cukrowska¹,

Nsengimana

Chimuka

2007

J of Separation Science

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Lead is known to be toxic, especially in its organic forms (organolead, OL). In the environment tetraalkyllead species are rapidly degraded by sunlight and atmospheric constituents like ozone or hydroxyl radicals. Such breakdown yields the soluble forms such as trialkyllead and dialkyllead and finally ionic lead species. The liquid membrane extraction probe (LMP) device has been developed and used as an extraction and preconcentration tool for the speciation analysis of organolead compounds by GC/MS. It allows analysis of OL species at low concentrations in complicated matrices of environmental samples. The effect of pH, stirring rate, and time that influence the extraction efficiency of OL extraction by the LMP method were optimized. The transformation of tetramethyllead in aqueous media at different concentrations of major ions K(+), Na(+), Ca(2+), Mg(2+), Cl(-), SO(4)(2-) and the application of LMP to environmental samples are presented. It was found that degradation of tetramethyllead takes between 24 and 37 days. The detection limit (LOD) of the method for all organolead species investigated is around 4.7 microg/L, with a limit of quantitation of 15 microg/L.

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Evaluation of Degradation of Antibiotic Tetracycline in Pig Manure by Electron Beam Irradiation

Cho

2010

Bull Environ Contam Toxicol

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This study was carried out to evaluate the degradation efficiency and intermediate products of the tetracycline from artificially contaminated pig manure using of electron beam irradiation as a function of the absorbed dose. The degradation efficiency of tetracycline was 42.77% at 1 kGy, 64.20% at 3 kGy, 77.83% at 5 kGy, and 90.50% at 10 kGy. The initial concentration of tetracycline (300 mg kg(-1)) in pig manure decreased significantly to 24.2 +/- 5.3 mg kg(-1) after electron beam irradiation at 10 kGy. The radiolytic degradation products of tetracycline were 1,4-benzenedicarboxylic acid, hexadecanoic acid, 9-octadecenamide, 11-octadecenamide, and octadecanoic acid.

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Degradation of organolead species in aqueous solutions by electron beam irradiation

Cited by 14 publications

References 15 publications

Feasibility study for the remediation of groundwater contaminated by organolead compounds

Feasibility study for the remediation of groundwater contaminated by organolead compounds

Speciation of alkyllead in aqueous samples with application of liquid membrane probe for extraction and preconcentration

Evaluation of Degradation of Antibiotic Tetracycline in Pig Manure by Electron Beam Irradiation

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