Persulfate oxidation for in situ remediation of TCE. II. Activated by chelated ferrous ion

Liang, Chenju; Bruell, Clifford J.; Marley, Michael C.; Sperry, Kenneth L.

doi:10.1016/j.chemosphere.2004.01.030

Cited by 356 publications

(191 citation statements)

References 12 publications

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“…Persulfate (PS) was also proven to be very useful for the elimination of contaminants such as diphenylamine, trichloroethylene, benzene, toluene, ethyl benzene and xylene in aqueous and soil slurries (Liang et al, 2004a(Liang et al, , 2004b(Liang et al, , 2008. However, currently only one study investigated the use of PS or activated-PS for the elimination of a different pharmaceutical product, sulfamonomethoxine (Yan et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Sabri

Hanna

Yargeau

2012

Science of The Total Environment

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The objective of this work was to evaluate the removal of ibuprofen (IBP) using the oxidants hydrogen peroxide (H 2 O 2 ) and sodium persulfate (Na 2 S 2 O 8 ). The ability of magnetite (Fe 3 O 4 ) to activate persulfate (PS) and H 2 O 2 for the oxidation of IBP at near neutral pH was evaluated as well. The use of soluble Fe 2+ to activate H 2 O 2 and Na 2 S 2 O 8 was also investigated. H 2 O 2 and Na 2 S 2 O 8 were inactive during the sixty-minute experiments when used alone. However, activation using Fe 2+ increased the removal to 95% in the presence of H 2 O 2 (Fenton reaction) and 63% in the presence of Na 2 S 2 O 8 at pH 6.6. Chemical oxygen demand (COD) removal was also greater for Fenton oxidation (65%) than for iron-activated PS oxidation (25%). Activation of H 2 O 2 and PS by Fe 3 O 4 was only observed at a high oxidant concentration and over 48 h of reaction time. A second order rate kinetic constant was determined for H 2 O 2 (3.0 * 10 − 3 M − 1 s − 1 ) and Na 2 S 2 O 8 (1.59 * 10 − 3 M − 1 s − 1 ) in the presence of Fe 3 O 4 . Finally, several of the degradation products formed during oxidation of IBP in the presence of H 2 O 2 and Na 2 S 2 O 8 (activated by Fe 2+ ) were identified. These include oxalic acid, pyruvic acid, formic acid, acetic acid, 4-acetylbenzoic acid, 4-isobutylacetophenone (4-IBAP) and oxo-ibuprofen.

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Section: Introductionmentioning

confidence: 99%

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Sabri

Hanna

Yargeau

2012

Science of The Total Environment

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“…Comparando-se o processo usando o reagente de Fenton com aquele em que se aplicou K 2 S 2 O 8 por meio da análise estatística por teste F, novamente não foi observada diferença significativa entre as técnicas (F tabelado = 7,71; F calculado = 6,67 (Liang et al, 2004).…”

Section: Resultsunclassified

Remediação de um solo contaminado com petróleo por oxidação química

Graciano¹,

Pires²,

Teixeira³

et al. 2012

Rev. Bras. Ciênc. Solo

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“…Numerous remediation technologies including bioremediation, thermal treatment, soil vapor extraction (SVE), zero-valent iron (ZVI), and in situ chemical oxidation (ISCO) have been developed over the past 30 years. Bioremediation is a cost-effective and simple remediation process for the degradation of contaminants such as benzene, toluene, ethylbenzene, and xylenes (BTEX) [12,13]. However, bioremediation is constrained by the available microbial community and by its degradation capacity in a given environment [14].…”

Section: Introductionmentioning

confidence: 99%

Monitoring Retardation Influence on Mycoplasma Transport in Silty Formation Udi Niger Delta of Nigeria

Sn¹

2017

MOJCE

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Retardation phase in transport process was observed to influences the migration process of Mycoplasma in silty deposited formation, the deposition of this contaminant in silty formation experienced higher concentration due to deposited lower porosity and void ratio in the study area, such condition experienced variations in formation characteristics, the deposition of other minerals that will definitely increase Mycoplasma population was considered in the system, the rate of velocity at various strata were also observed as significant parameters in the system, the derived model base on these factors integrated these conditions on the derived solutions, this implies that the system will be monitored in several condition at different phase of the transport system, condition were the microbes may experienced uncomfortable environment were also considered, these are were Mycoplasma may generates degradation, the study is imperative because the behaviour of Mycoplasma has been thoroughly observed, it is through these process that the rate of Mycoplasma can be predicted, experts will definitely produces results applying these concept.

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Persulfate oxidation for in situ remediation of TCE. II. Activated by chelated ferrous ion

Cited by 356 publications

References 12 publications

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Chemical oxidation of ibuprofen in the presence of iron species at near neutral pH

Remediação de um solo contaminado com petróleo por oxidação química

Monitoring Retardation Influence on Mycoplasma Transport in Silty Formation Udi Niger Delta of Nigeria

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