Degradation of carbamazepine and toxicity evaluation using the <scp>UV</scp>/persulfate process in aqueous solution

Zhang, Qin; Chen, Jiabin; Dai, Chaomeng; Zhang, Yalei; Zhou, Xuefei

doi:10.1002/jctb.4360

Cited by 82 publications

(31 citation statements)

References 45 publications

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“…At pH 7, TOC removal was 21.0 and 33.3 % for PS-Fe(II) and PMS-Fe(II), respectively. Most of the SR-AOP studies reported that the degradation of organic pollutants achieved it highest efficiency at acidic conditions due to the formation of SR through acid-catalysis reaction (Zhang et al 2015). For this study, it was proposed that Fe(II) complexed with soluble organic substances in the vinasse at neutral condition.…”

Section: The Efficiency Of Coagulation-flocculation Pretreatmentmentioning

confidence: 91%

Mineralization of organic matter from vinasse using physicochemical treatment coupled with Fe2+-activated persulfate and peroxymonosulfate oxidation

Fagier

Ali

Tay

et al. 2016

Int. J. Environ. Sci. Technol.

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Application of advanced oxidation process for wastewater treatment has gained more attention recently. In this study, the efficiency of coagulation-flocculation pretreatment coupled with sulfate radical-based advanced oxidation process (SR-AOP) in the removal and mineralization of organic matter of sugarcane vinasse was evaluated. For coagulation-flocculation, jar-test experiment was carried out with ferric chloride as coagulant and the removal of TOC, color and UV 254 was determined. The results revealed that by using 15 g/L of coagulant, 70 % of TOC removal and nearly 100 % of UV 254 and color removal were achieved. The pretreated vinasse was then subjected to SR-AOP. In this study, sulfate radical was generated using persulfate (PS) and peroxymonosulfate (PMS) activated by Fe(II). The effect of reaction time, oxidants to Fe(II) ratio and pH on the TOC removal efficiency were investigated. For the effect of reaction time, the TOC removal was found to increase significantly for the first 5 min. TOC removal was found to increase with increasing concentration of Fe(II) for PMS. However, for Fe(II)/PS, the TOC removal efficiency was decreased with increasing Fe(II) concentration. Both Fe(II)/ PMS and Fe(II)/PS showed the highest TOC removal efficiency when the oxidation was carried out at pH 7. By using the selected optimum condition, nearly 70 and 49 % of TOC removal were achieved for PMS/Fe(II) and PS/Fe(II), respectively. Therefore, it can be concluded that SR-AOP can be a promising alternative method for TOC removal from sugarcane vinasse.

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Section: The Efficiency Of Coagulation-flocculation Pretreatmentmentioning

confidence: 91%

Mineralization of organic matter from vinasse using physicochemical treatment coupled with Fe2+-activated persulfate and peroxymonosulfate oxidation

Fagier

Ali

Tay

et al. 2016

Int. J. Environ. Sci. Technol.

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“…Advanced oxidation processes based on sulfate radical generation have proved to be effective in degrading a wide range of recalcitrant micro contaminants in aqueous solutions, including hormones [19], pharmaceuticals [1,20], herbicides [12] and the decontamination of pool water [21].…”

Section: •−mentioning

confidence: 99%

Sulfate Radical Technologies as Tertiary Treatment for the Removal of Emerging Contaminants from Wastewater

2017

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Abstract:Water scarcity and water pollution is a worldwide problem and has driven research into eco-friendly and low-energy cost efficient remediation. The reuse of wastewater for non-potable purpose after proper treatment is the only sustainable solution to the problem. Advanced oxidation processes (AOP) based on the in-situ generation of hydroxyl radicals have been intensively investigated for this purpose as a treatment step to achieve wastewater reuse. The main degradation mechanism of AOPs is based on the reaction of hydroxyl radicals with dissolved organic matter. However, hydroxyl radicals follow unselective multi-step pathways, limiting their efficiency in complex environmental matrices. To overcome such limitations, AOP treatment, based on generation of sulfate radicals, has been developed and widely investigated. This current mini-review will cover the most recent developments regarding emerging contaminant removal, i.e., organic micropollutants, using sulfate radicals generated by active persulfate or peroxymonosulfate, with a focus on an application to wastewater effluents for possible wastewater reuse.

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“…Dentre estes, o persulfato tem chamado atenção, sobretudo pelo prolongado tempo de meia-vida, podendo se dispersar por maiores distâncias. Além disso, não sofre significativas influências de alterações de pH e, após a reação, os produtos são transformados em íons sulfato, ambientalmente amigáveis, ZHANG et al, (2014). Ante ao exposto, este trabalho tem como objetivo principal estudar a degradação do azul de metileno utilizando persulfato de sódio ativado por catalisador sintetizado conforme descrito por Silva-Rackov et al (2017) em reator mecanicamente agitado.…”

Section: Introductionunclassified

Degradação Em Reator Mecanicamente Agitado De Efluente De Azul De Metileno Utilizando Persulfato De Sódio Ativado Por Hidróxido De Ferro Suportado Em Diatomita

Silva¹,

Souza²,

Carvalho³

et al. 2019

Blucher Chemical Engineering Proceedings

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Degradation of carbamazepine and toxicity evaluation using the UV/persulfate process in aqueous solution

Cited by 82 publications

References 45 publications

Mineralization of organic matter from vinasse using physicochemical treatment coupled with Fe2+-activated persulfate and peroxymonosulfate oxidation

Mineralization of organic matter from vinasse using physicochemical treatment coupled with Fe2+-activated persulfate and peroxymonosulfate oxidation

Sulfate Radical Technologies as Tertiary Treatment for the Removal of Emerging Contaminants from Wastewater

Degradação Em Reator Mecanicamente Agitado De Efluente De Azul De Metileno Utilizando Persulfato De Sódio Ativado Por Hidróxido De Ferro Suportado Em Diatomita

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