Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2012.1966.1971JosephC.G. LiewY.L.S. KrishnaiahD. BonoA. 1220121218The use of chlorine bleaching in study and pulp industry has
resulted in chlorinated phenol contaminated wastewater from that industry. A
new wastewater treatment process, sonophotodegradation of 2,4,6-trichlorophenol
(TCP) in a heterogeneous aqueous system was investigated and reported in this
study. TCP was degraded with ultrasonic or ultraviolet irradiation or a combination
of both, in the presence of titanium dioxide semiconductor catalyst (anatase
and/or rutile), in order to study the effectiveness of sonocatalysis, photocatalysis
and sonophotocatalysis oxidation in a batch sonophotoreactor system. Preliminary
studies presented in this study suggested that rutile worked well under sonocatalysis,
anatase was the preference for photocatalysis and sonophotocatalysis benefited
from a combined rutile and anatase mixture catalyst. Sonophotocatalysis oxidation
of TCP demonstrated a degradation that was higher than sonocatalysis or photocatalysis
individually while the first-order kinetics rate constants indicated that sonophotocatalysis
degradation of TCP was synergistic with a positive value of 0.0203 in the presence
of the mixture catalyst.]]>Aksu, Z. and J. Yener,200121695702Campbell, S.A., H.S. Kim, D.C. Gilmer, B. He, T. Ma and W.L. Gladfelter,199943383392Chaliha, S. and K.G. Bhattacharyya,2008139575588Czaplicka, M.,20043222139Gao, J.J., L.H. Liu, X.R. Liu, H.D. Zhou, S.B. Huang and Z.J. Wang,20087111811187Gao, R. and J. Wang,2007145398403Joseph, C.G., G. Li Puma, A. Bono and D. Krishnaiah,200916583589Joseph, C.G., A. Bono, D. Krishnaiah, C.Y. Ling and N.C. Ban,20092 and H3PO4 activation.]]>931313135Joseph, C.G. G.L. Puma, A. Bono, Y.H. Taufiq-Yap and D. Krishnaiah,2011276303309Jung, M.W., K.H. Ahu, Y. Lee, K.P. Kim, J.S. Rhee, J.T. Park and K.J. Paeng,200170123131Krishnaiah, A.,2003105143156Li Puma, G., A. Bono, D. Krishnaiah and J.G. Collin,2008157209219Meacock, G., K.D.A. Taylor, M. Knowles and A. Himonides,199773221225Michizoe, J., Y. Uchimura, H. Ichinose, T. Maruyama and N. Kamiya et al.,2004194346Ollis, D. and H. Al-Elkabi,1993Radhika, M. and K. Palanivelu,2006138116124Shih, KY., W.D. Han and S.D. Huang,199025477487Sharain-Liew, Y.L., C.G. Joseph and S.E. How,2011Typha angustifolia) leaves: kinetic studies.]]>7610371047Tzou, Y.M., S.L. Wang, J.C. Liu, Y.Y. Huang and J.H. Chen,2008152812819Jianlong, W., Q. Yi, N. Horan and E. Stentiford,200075157161USEPA,20002000University of Berkeley,20072007