Radiation-induced degradation of water pollutants: State of the art

Getoff, N.

doi:10.1016/0969-806x(95)00325-r

Cited by 43 publications

(55 citation statements)

References 5 publications

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“…• OH radicals, • H radicals and e aq − are playing their role in the degradation of CV dye [23]. At absorbed dose of 400 Gy, 36 % degradation of CV dye was observed as shown in Fig.…”

Section: Reaction Of CV Withmentioning

confidence: 88%

Removal of Crystal Violet Dye From Aqueous Solution by Gamma Irradiation

Rehman

Sayed

Khan

et al. 2017

J. Chil. Chem. Soc.

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In this study the radiation-induced degradation of crystal violet (CV) dye under various experimental conditions has been investigated. D 0.5 , D 0.9 and D 0.99 values suggests that lower doses are required for 50%, 90% and 99% removal of CV dye when the sample solution contains excessive amount of• OH radicals. The removal efficiency of CV dye in terms of G-values was also calculated under each reaction conditions. The results showed that• OH radicals are playing effective role in the degradation of CV dye as compared to e aq -and • H radicals. The gamma irradiation process effectively degraded CV dye at all pH values. The organic byproducts were examined and accordingly degradation pathway was proposed.

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“…• OH radicals, • H radicals and e aq − are playing their role in the degradation of CV dye [23]. At absorbed dose of 400 Gy, 36 % degradation of CV dye was observed as shown in Fig.…”

Section: Reaction Of CV Withmentioning

confidence: 88%

Removal of Crystal Violet Dye From Aqueous Solution by Gamma Irradiation

Rehman

Sayed

Khan

et al. 2017

J. Chil. Chem. Soc.

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“…In water radiolysis, the primary species (OH, e aq -, and H) and molecular products (H 2 , H 2 O 2 ) are generated by the following equation [16]:…”

Section: Introductionmentioning

confidence: 99%

Kinetic and modeling of radiolytic decomposition of antibiotics

Choi

Lee

2008

WIT Transactions on Ecology and the Environment

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There has been recent growing interest in the presence of antibiotics in different environmental compartments. One considerable concern is the potential development of antibiotic-resistant bacteria in the environment, even at low concentrations. Kinetic experiments were conducted to compare two kinetic models for radiolytic decomposition of various antibiotics such as cephradine, amoxicillin, sulfamethazine, tetracycline, and lincomycin. Batch kinetic experiments with initial aqueous concentrations of 2, 6, 8, 20 mg/L showed the decomposition of antibiotics using gamma radiation followed a pseudo first-order reaction, and the dose constant increased with lower initial concentrations. For comparison of a kinetic model for radiolytic decomposition of various antibiotics, the Monod equation was used. The kinetic parameters of maximum reaction rates (k max ) and half-velocity coefficient (K s ) are obtained. The k max values ranged from 0.29 to 0.99 µM/Gy. The K s values for antibiotics decreased in the order of: cephradine > lincomycin > amoxicillin > sulfamethazine > tetracycline. Radiolytic decomposition of antibiotics by gamma radiation was well described by both a pseudo first-order reaction and the Monod equation.

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“…Em taxas de doses altas estas espécies são formadas em maior concentração e uma boa parte delas é consumida, portanto por reações com elas próprias (Getoff, 1996(Getoff, , 2002). • classe especial: águas destinadas à preservação dos ambientes aquáticos em unidades de conservação de proteção integral e à preservação do equilíbrio natural das comunidades aquáticas;…”

Section: Remediação De áReas Contaminadas Por Petróleounclassified

"Avaliação da contaminação da água do mar por Benzeno, Tolueno e Xileno na região de Ubatuba e estudo da degradação destes compostos por radiação ionizante"

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Radiation-induced degradation of water pollutants: State of the art

Cited by 43 publications

References 5 publications

Removal of Crystal Violet Dye From Aqueous Solution by Gamma Irradiation

Removal of Crystal Violet Dye From Aqueous Solution by Gamma Irradiation

Kinetic and modeling of radiolytic decomposition of antibiotics

"Avaliação da contaminação da água do mar por Benzeno, Tolueno e Xileno na região de Ubatuba e estudo da degradação destes compostos por radiação ionizante"

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