PERFORMANCE OF TiO2 IN PHOTODEGRADATION SEAFOOD WASTEWATER

Authors

  • Luu Cam Loc Institute of Chemical Technology (VAST), 01 Mac Dinh Chi, Ho Chi Minh City

DOI:

https://doi.org/10.15625/2525-2518/54/4B/12027

Keywords:

photocatalysis, TiO2-HT, TiO2-P25 Degussa, seafood wastewater.

Abstract

In this work, photocatalysts TiO2-HT prepared by hydrothermal method and TiO2-P25 Degussa were characterized by Energy Dispersive X-Ray analysis (EDX), X-ray powder diffraction analysis (XRD), Raman Spectroscopy, BET surface area measurements, scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and UV-Vis absorption spectroscopy and tested in degradation of recalcitrant organic pollutants in bio-treated seafood wastewater (COD > 80 mg/L). After 9 hours of photodegradation under UV-A irradiation, COD removal efficiency reached 85.6 % and 48.9 % on TiO2-P25 and TiO2 catalysts, respectively. COD values of seafood wastewater treated by photocatalysis met the standard discharge requirement - QCVN 11:2008 – level A (COD £ 50 mg/L).

 

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Published

2018-03-22

Issue

Section

Articles