1. Department of Chemical Engineering; University of Philippines, Diliman 1101; Quezon City Philippines
2. National Research Center for Disaster-Free and Safe Ocean City; Busan 49315 Republic of Korea
3. Environmental Management Bureau-Region III; San Fernando City Pampanga Philippines
4. Environmental Engineering Program, National Graduate School of Engineering; University of the Philippines, Diliman 1101; Quezon City Philippines
5. Department of Environmental Resources Management; Chia Nan University of Pharmacy and Science; Tainan 71710 Taiwan