Optimizing advanced oxidation process for industrial textile wastewater treatment

Joanne C.L. Lim, Khai Ern Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The H2O2/pyridine/Cu(II) advanced oxidation system is a treatment method involving a combination of a transition metal ion with ligand molecules which decomposes H2O2 to produce hydroxyl radicals (OH∗), which will then lead to the mineralization of organic compounds to produce CO2 and H2O. Most researches used this system on synthetic dye wastewater and reported removal in colour only. This study was carried out to assess and to optimize the treatment efficiency in terms of COD reduction and colour removal using this system in the treatment of industrial dye wastewater. Full factorial design and central composite design (CCD) from the response surface methodology (RSM) were utilized in the screening and optimization of the system. Results obtained indicated that this system was found to be capable in reducing the concentration of COD of the dye wastewater up to 80% and removing 94% of the colour at the optimal concentrations of 0.0023 M [H2O2], 0.0073 M [pyridine], 0.0123 M [Cu(II)] and at pH 10. Final COD concentration was recorded at 102 mg/L, and colour point at 55 PtCo. Amount of sludge produced at the end of this treatment system was 260 mg/L.

Original languageEnglish
Pages (from-to)591-597
Number of pages7
JournalNature Environment and Pollution Technology
Volume16
Issue number2
Publication statusPublished - 2017

Fingerprint

Wastewater treatment
Textiles
Wastewater
Dyes
Color
oxidation
Pyridine
Oxidation
dye
wastewater
Organic compounds
Transition metals
Metal ions
Screening
transition element
hydroxyl radical
Ligands
ligand
organic compound
Molecules

Keywords

  • Central composite design
  • Full factorial design
  • HO/pyridine/Cu(II)
  • Industrial dye wastewater
  • Optimization

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Science(all)

Cite this

Optimizing advanced oxidation process for industrial textile wastewater treatment. / Lim, Joanne C.L.; Lee, Khai Ern.

In: Nature Environment and Pollution Technology, Vol. 16, No. 2, 2017, p. 591-597.

Research output: Contribution to journalArticle

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