Advanced oxidation treatment of pulp mill effluent for TOC and toxicity removals

Catalkaya E., Kargi F.

JOURNAL OF ENVIRONMENTAL MANAGEMENT, cilt.87, sa.3, ss.396-404, 2008 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 87 Sayı: 3
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.jenvman.2007.01.016
  • Dergi Adı: JOURNAL OF ENVIRONMENTAL MANAGEMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.396-404
  • Anahtar Kelimeler: advanced oxidation process (AOPs), UV/TiO2, UV/H2O2/TiO2, pulp mill effluent, PHOTOCATALYTIC DEGRADATION, TITANIUM-DIOXIDE, WASTE-WATER, AQUEOUS-SOLUTION, PHENOLIC-COMPOUNDS, PAPER-INDUSTRY, UV-IRRADIATION, AZO DYES, TIO2, LIGNIN
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Pulp mill effluent was treated by different advanced oxidation processes (AOPs) consisting of UV, UV/H2O2, TiO2-assisted photocatalysis (UV/TiO2) and UV/H2O2/TiO2 in lab-scale reactors for total organic carbon (TOC) and toxicity removals. Effects of some operating parameters such as the initial pH, oxidant and catalyst concentrations on TOC and toxicity removals were investigated. Almost every method resulted in some degree of TOC and toxicity removal from the pulp mill effluent. However, the TiO2-assisted photo-catalysis (UV/TiO2) resulted in the highest TOC and toxicity removals under alkaline conditions when compared with the other AOPs tested. Approximately, 79.6% TOC and 94% toxicity removals were obtained by the TiO2-assisted photo-catalysis (UV/TiO2) with a titanium dioxide concentration of 0.75 g l(-1) at pH 11 within 60 min. (C) 2007 Elsevier Ltd. All rights reserved.