MICROBIAL COMMUNITY STRUCTURE IN ANAEROBIC DEGRADATION OF TEREPHTHALATE AND PHENOL CHEN CHIA-LUNG NATIONAL UNIVERSITY OF SINGAPORE 2007 MICROBIAL COMMUNITY STRUCTURE IN ANAEROBIC DEGRADATION OF TEREPHTHALATE AND PHENOL CHEN CHIA-LUNG (MSc, NCKU) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CIVIL ENGINEERING NATIONAL UNIVERSITY OF SINGAPORE 2007