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Simultaneous Removal of Lignin and 2,4-Dichlorophenol in Pulp and Paper Mill Wastewater Using a Supervibration-photocatalytic Reactor

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  • Suchanya Thongkrua
  • Chavalit Ratanatamskul

Abstract

Advanced photocatalytic degradation of lignin and 2,4-dichlorophenol (2,4-DCP) was studied. The method used a newly developed supervibration-photocatalytic reactor based on the photocatalytic process combined with a supervibration agitator. Effects of operating conditions such as initial pH, UV intensity and supervibration frequency on removal efficiency were investigated. From the results obtained, removal efficiencies of lignin and 2,4-DCP were similar pattern. UV intensity and supervibration frequency in a low initial pH increased removal efficiencies of lignin and 2,4-DCP. The optimum operating condition for a supervibration-photocatalytic reactor was found at initial pH 5, 25.2mW/cm2 UV intensity and 50Hz supervibration frequency. Under the optimum treatment condition, the reactor could simultaneously remove lignin and 2,4-DCP up to 75.1% and 94.1%, respectively within 420min.

Suggested Citation

  • Suchanya Thongkrua & Chavalit Ratanatamskul, 2011. "Simultaneous Removal of Lignin and 2,4-Dichlorophenol in Pulp and Paper Mill Wastewater Using a Supervibration-photocatalytic Reactor," Modern Applied Science, Canadian Center of Science and Education, vol. 5(1), pages 1-92, February.
    • Handle: RePEc:ibn:masjnl:v:5:y:2011:i:1:p:92
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    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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