PERFORMANCE OF TiO2 IN PHOTODEGRADATION SEAFOOD WASTEWATER | Zendy

Lưu Cẩm Lộc | Zendy

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PERFORMANCE OF TiO2 IN PHOTODEGRADATION SEAFOOD WASTEWATER

Author(s) -

Lưu Cẩm Lộc

Publication year - 2018

Publication title -

vietnam journal of science and technology/science and technology

Language(s) - English

Resource type - Journals

eISSN - 2815-5874

pISSN - 2525-2518

DOI - 10.15625/2525-2518/54/4b/12027

Subject(s) - photodegradation , photocatalysis , wastewater , fourier transform infrared spectroscopy , scanning electron microscope , raman spectroscopy , nuclear chemistry , materials science , transmission electron microscopy , catalysis , chemistry , chemical engineering , environmental engineering , environmental science , nanotechnology , composite material , organic chemistry , optics , physics , engineering

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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