[1] Univ Malaysia Sabah, Fac Engn, Chem Engn Programme, Kota Kinabalu 88400, Sabah, Malaysia
[2] Univ Malaysia Sabah, Fac Sci & Nat Resources, Sonophotochem Res Grp, Kota Kinabalu 88400, Sabah, Malaysia
[3] Univ Malaysia Sabah, Fac Sci & Nat Resources, Water Res Unit, Kota Kinabalu 88400, Sabah, Malaysia
[4] Univ Malaysia Sabah, Fac Sci & Nat Resources, Ind Chem Programme, Kota Kinabalu 88400, Sabah, Malaysia