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Treatment of high-strength wastewater by Fe(2+)-activated persulphate and hydrogen peroxide.
Environ Technol. 2016; 37(3):352-9.ET

Abstract

Ferrous ion-activated persulphate and hydrogen peroxide were studied for the treatment of real high-strength industrial effluent. The Fenton process demonstrated greater organic load removal, biodegradability improvement and toxicity reduction as well as lower treatment cost than the activated persulphate system. However, the use of an activated persulphate process was more favourable due to the exothermic effect intrinsic to the Fenton reaction, which resulted in a rapid increase in the temperature of the high-strength wastewater along with excessive foam formation. Overall, for the H2O2/Fe(2+) and [Formula: see text] processes, the application of a chemical oxygen demand (COD)/oxidant/Fe(2+) weight ratio of 1/0.4/0.075 resulted in a COD removal of 58 and 50%, a 7-day biochemical oxygen demand/COD ratio increase from 0.14 to 0.3 and 0.23, and an increase in the EC50 (Daphnia magna) by 6.5-fold and 2.9-fold, respectively. The stepwise addition of the oxidant and activator was favourable for the Fenton process and resulted in negligible improvement in the wastewater treatment efficacy in the activated persulphate system.

Authors+Show Affiliations

a Department of Chemical Engineering , Tallinn University of Technology , Ehitajate tee 5, Tallinn 19086, Estonia.a Department of Chemical Engineering , Tallinn University of Technology , Ehitajate tee 5, Tallinn 19086, Estonia.a Department of Chemical Engineering , Tallinn University of Technology , Ehitajate tee 5, Tallinn 19086, Estonia.b Department of Chemistry , University of Tartu , Ravila 14a, Tartu 50411 , Estonia.a Department of Chemical Engineering , Tallinn University of Technology , Ehitajate tee 5, Tallinn 19086, Estonia.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26165510

Citation

Kattel, E, et al. "Treatment of High-strength Wastewater By Fe(2+)-activated Persulphate and Hydrogen Peroxide." Environmental Technology, vol. 37, no. 3, 2016, pp. 352-9.
Kattel E, Dulova N, Viisimaa M, et al. Treatment of high-strength wastewater by Fe(2+)-activated persulphate and hydrogen peroxide. Environ Technol. 2016;37(3):352-9.
Kattel, E., Dulova, N., Viisimaa, M., Tenno, T., & Trapido, M. (2016). Treatment of high-strength wastewater by Fe(2+)-activated persulphate and hydrogen peroxide. Environmental Technology, 37(3), 352-9. https://doi.org/10.1080/09593330.2015.1069899
Kattel E, et al. Treatment of High-strength Wastewater By Fe(2+)-activated Persulphate and Hydrogen Peroxide. Environ Technol. 2016;37(3):352-9. PubMed PMID: 26165510.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Treatment of high-strength wastewater by Fe(2+)-activated persulphate and hydrogen peroxide. AU - Kattel,E, AU - Dulova,N, AU - Viisimaa,M, AU - Tenno,T, AU - Trapido,M, Y1 - 2015/08/17/ PY - 2015/7/14/entrez PY - 2015/7/15/pubmed PY - 2016/9/3/medline KW - Fenton process KW - acute toxicity KW - ferrous ion-activated persulphate KW - sulphate radical KW - wastewater treatment SP - 352 EP - 9 JF - Environmental technology JO - Environ Technol VL - 37 IS - 3 N2 - Ferrous ion-activated persulphate and hydrogen peroxide were studied for the treatment of real high-strength industrial effluent. The Fenton process demonstrated greater organic load removal, biodegradability improvement and toxicity reduction as well as lower treatment cost than the activated persulphate system. However, the use of an activated persulphate process was more favourable due to the exothermic effect intrinsic to the Fenton reaction, which resulted in a rapid increase in the temperature of the high-strength wastewater along with excessive foam formation. Overall, for the H2O2/Fe(2+) and [Formula: see text] processes, the application of a chemical oxygen demand (COD)/oxidant/Fe(2+) weight ratio of 1/0.4/0.075 resulted in a COD removal of 58 and 50%, a 7-day biochemical oxygen demand/COD ratio increase from 0.14 to 0.3 and 0.23, and an increase in the EC50 (Daphnia magna) by 6.5-fold and 2.9-fold, respectively. The stepwise addition of the oxidant and activator was favourable for the Fenton process and resulted in negligible improvement in the wastewater treatment efficacy in the activated persulphate system. SN - 1479-487X UR - https://www.unboundmedicine.com/medline/citation/26165510/Treatment_of_high_strength_wastewater_by_Fe_2+__activated_persulphate_and_hydrogen_peroxide_ L2 - https://www.tandfonline.com/doi/full/10.1080/09593330.2015.1069899 DB - PRIME DP - Unbound Medicine ER -