<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Thermally activated persulfate efficiency for the treatment of a recalcitrant high TDS wastewater was investigated. The specific character of studied wastewater was high TDS content of around 23820 mg/L and BOD5/COD ratio of 0.07. Effective operational parameters including initial pH values of 3–9, reaction temperature of 40–80°C and persulfate concentrations of 0.5–5 g/L for COD removal were investigated in batch mode experiments. Removal efficiency was pH and temperature dependent. The COD and TOC removal of 94.3% and 82.8% were obtained at persulfate concentration of 4 g/L, initial pH value of 5 and temperature of 70°C after 180 min for initial COD concentration of 1410 mg/L. The pseudo first-order kinetic model was best fitted with COD removal (R<sup>2</sup> = 0.94).</p></abstract>

Thermally activated persulfate efficiency for the treatment of a recalcitrant high TDS wastewater was investigated. The specific character of studied wastewater was high TDS content of around 23820 mg/L and BOD5/COD ratio of 0.07. Effective operational parameters including initial pH values of 3–9, reaction temperature of 40–80°C and persulfate concentrations of 0.5–5 g/L for COD removal were investigated in batch mode experiments. Removal efficiency was pH and temperature dependent. The COD and TOC removal of 94.3% and 82.8% were obtained at persulfate concentration of 4 g/L, initial pH value of 5 and temperature of 70°C after 180 min for initial COD concentration of 1410 mg/L. The pseudo first-order kinetic model was best fitted with COD removal (R2 = 0.94).

Thermally activated persulfate treatment and mineralization of a recalcitrant high TDS petrochemical wastewater

Ahvaz Jundishapur University of Medical Sciences

Environmental Technologies Research Center

Department of Environmental Health Engineering, School of Health

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Thermally activated persulfate efficiency for the treatment of a recalcitrant high TDS wastewater was investigated. The specific character of studied...

Thermally activated persulfate treatment and mineralization of a recalcitrant high TDS petrochemical wastewater

Published Online: Jul 08, 2017

Page range: 72 - 77

DOI: https://doi.org/10.1515/pjct-2017-0031

Keywords
Industrial wastewater treatment, Thermally activation, persulfate Petrochemical industry, High TDS wastewater

© 2017 Sahand Jorfi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Thermally activated persulfate treatment and mineralization of a recalcitrant high TDS petrochemical wastewater

Published Online: Jul 08, 2017

Page range: 72 - 77

DOI: https://doi.org/10.1515/pjct-2017-0031

KeywordsIndustrial wastewater treatment, Thermally activation, persulfate Petrochemical industry, High TDS wastewater

© 2017 Sahand Jorfi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Industrial wastewater treatment, Thermally activation, persulfate Petrochemical industry, High TDS wastewater