Affiliations: Department of Chemistry Engineer, Seonam University,
Namwon 590-711, Korea | Department of Chemistry Engineer, Sunchon National
University, Suncheon 540-742, Korea
Abstract: This study evaluates the adsorption ability of bisphenol A (BPA) on
titanium dioxide (TiO_2) and its effect on the
photocatalysis by advanced oxidation process using UV radiation and
TiO_2 photocatalyst. Degradation of BPA was also evaluated
for the system without adsorption prior to photocatalytic reaction. The
separation of TiO_2 from BPA solution treated by pilot-scale
photocatalytic reactor (capacity 0.16 m^3) was studied using
submerged ultrafiltration (UF) membrane. It was found that although adsorption
capacity of BPA was not high, adsorption played an important role in improving
the efficiency ofphotocatalysis. On the other hand, during the separation of
TiO_2 particles from aqueous suspension, the permeate flux
of the membrane was strongly affected by transmembrane pressure and
TiO_2 dose. The permeate turbidity was decreased below 1
NTU.
Keywords: bisphenol A, TiO[TeX:] _2, adsorption, membrane, photocatalysis