Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/124226
Title: APPLICATION OF UVA/LED/TiO2 PHOTOCATALYSIS AS A PRE-TREATMENT FOR ANTIBIOTICS REMOVAL IN SIMULATED HOSPITAL WASTEWATER
Authors: CAI QINQING
Keywords: UVA/LED/TiO2, sulfamethoxazole, trimethoprim, antibacterial activity, toxicity, antibiotic resistance genes
Issue Date: 24-Dec-2015
Citation: CAI QINQING (2015-12-24). APPLICATION OF UVA/LED/TiO2 PHOTOCATALYSIS AS A PRE-TREATMENT FOR ANTIBIOTICS REMOVAL IN SIMULATED HOSPITAL WASTEWATER. ScholarBank@NUS Repository.
Abstract: THIS STUDY CONDUCTED AN IN-DEPTH EVALUATION OF APPLYING LED/UVA/TIO2 PHOTOCATALYSIS AS A PRE-TREATMENT FOR SULFAMETHOXAZOLE (SMX) AND TRIMETHOPRIM (TMP) REMOVAL. THE CONTINUOUS PHOTOREACTOR ACHIEVED SATISFACTORY REMOVAL OF SMX/TMP WITH COMPLETE ELIMINATION OF THE RESIDUAL ANTIBACTERIAL ACTIVITY. SYNERGISTIC EFFECT BETWEEN SMX AND TMP WAS DETECTED ACCORDING TO THE RETAINED ANTIBACTERIAL ACTIVITY OF SMX/TMP MIXTURE. NO ACUTE TOXICITY WAS GENERATED DURING UV/TIO2 PHOTOCATALYSIS. DUE TO THE PRESENCE OF OXIDATION BY-PRODUCTS, CHRONIC TOXICITY WAS OBSERVED TOWARDS THE END OF THE REACTION PROCESS. CONSIDERING THE RESIDUE ANTIBIOTICS AND INTERMEDIATES IN THE TREATED WASTEWATER MAY ADVERSELY AFFECT FOLLOWING BIOLOGICAL TREATMENT PROCESS, THE TREATED SMX /TMP CONTAINING WASTEWATER WERE FED INTO SBR SYSTEMS FOR LONG TERM OPERATION AND MONITORING ON NUTRIENT REMOVAL AND ARGS DEVELOPMENT. CONTINUOUS FEEDING OF TREATED ANTIBIOTICS WASTEWATER DID NOT ADVERSELY AFFECT SBR PERFORMANCE IN TERMS OF TOC A
URI: http://scholarbank.nus.edu.sg/handle/10635/124226
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
CaiQQ.pdf3.11 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

226
checked on Oct 14, 2021

Download(s)

242
checked on Oct 14, 2021

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.