Use of Fenton oxidation to improve the biodegradability of a pharmaceutical wastewater

Date

2006-08-21

Author

Tekin, Huseyin
BİLKAY, Okan
Ataberk, Selale S.
Balta, Tolga H.
Ceribasi, I. Haluk
Sanin, Faika Dilek
Dilek, Filiz Bengü
Yetiş, Ülkü

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The applicability of Fenton's oxidation to improve the biodegradability of a pharmaceutical wastewater to be treated biologically was investigated. The wastewater was originated from a factory producing a variety of pharmaceutical chemicals. Treatability studies were conducted under laboratory conditions with all chemicals (having COD varying from 900 to 7000 mg/L) produced in the factory in order to determine the operational conditions to utilize in the full-scale treatment plant. Optimum pH was determined as 3.5 and 7.0 for the first (oxidation) and second stage (coagulation) of the Fenton process, respectively. For all chemicals, COD removal efficiency was highest when the molar ratio of H2O2/Fe2+ was 150-250. At H2O2/Fe2+ ratio of 155, 0.3 M H2O2 and 0.002 M Fe2+, provided 45-65% COD removal.

Subject Keywords

Biodegradability, Pharmaceutical wastewater, Fenton's reagent, Fenton's oxidation, Pretreatment

URI

https://hdl.handle.net/11511/40741

Journal

JOURNAL OF HAZARDOUS MATERIALS

DOI

https://doi.org/10.1016/j.jhazment.2005.12.012

Collections

Department of Environmental Engineering, Article

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Citation Formats

H. Tekin et al., “Use of Fenton oxidation to improve the biodegradability of a pharmaceutical wastewater,” JOURNAL OF HAZARDOUS MATERIALS, pp. 258–265, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40741.