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Photooxidative degradation of aromatic carboxylic acids in water : influence of hydroxyl substituents (CROSBI ID 207034)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Milovac, Nikolina ; Juretić, Daria ; Kušić, Hrvoje ; Đermadi, Jasna ; Lončarić Božić, Ana Photooxidative degradation of aromatic carboxylic acids in water : influence of hydroxyl substituents // Industrial & engineering chemistry research, 53 (2014), 26; 10590-10598. doi: 10.1021/ie501338q

Podaci o odgovornosti

Milovac, Nikolina ; Juretić, Daria ; Kušić, Hrvoje ; Đermadi, Jasna ; Lončarić Božić, Ana

engleski

Photooxidative degradation of aromatic carboxylic acids in water : influence of hydroxyl substituents

UV/H2O2 process was applied for the degradation of aromatic carboxylic acids (ACAs). Benzoic acid, Salicylic acid, Gentisic acid and Gallic acid are chosen as typical water pollutants representing ACAs with the increased number of hydroxyl groups. Effect of structural characteristics of ACAs and UV/H2O2 process parameters on their degradation kinetics was investigated by statistical/empirical approach employing design of experiments and response surface methodology. Different optimal conditions for maximal degradation rates were established, while degradation rates followed decreasing order: Benzoic acid > Salicylic acid > Gentisic acid > Gallic acid, with the increasing number of hydroxyl groups. The inversed order was established in the case of mineralization kinetics. Structurally influenced degradation pathways of studied ACAs, the shared sequence related to preferable hydroxylation position at benzene ring, are reflected in the observed changes in biodegradability and toxicity toward Vibrio fischeri during UV/H2O2 treatment.

wastewater; aromatic carboxylic acids; photooxidation; response surface methodology; biodegradability; toxicity

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Podaci o izdanju

53 (26)

2014.

10590-10598

objavljeno

0888-5885

10.1021/ie501338q

Povezanost rada

Kemijsko inženjerstvo

Poveznice
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