Journal
WATER SCIENCE AND TECHNOLOGY
Volume 64, Issue 11, Pages 2230-2238Publisher
IWA PUBLISHING
DOI: 10.2166/wst.2011.079
Keywords
advanced oxidation; byproducts; EEO; ozone; pharmaceuticals; photodegradation photolysis
Funding
- Israeli Water Authority
Ask authors/readers for more resources
Water and wastewater effluents contain a vast range of pharmaceutical chemicals. The present study aims to determine the potential of the advanced oxidation technology UV/H2O2/O-3 and its sub-processes (i.e. UV, UV/H2O2, UV/O-3, O-3 and H2O2/O-3) for the degradation of the antibiotics ciprofloxacin (CIP) and trimethoprim (TMP), and the antineoplastic drug cyclophosphamide (CPD) from water. Creating AOP conditions improved in most cases the degradation rate of the target compounds (compared with O-3 and UV alone). H2O2 concentration was found to be an important parameter in the UV/H2O2 and H2O2/O-3 sub-processes, acting as (OH)-O-center dot initiator as well as (OH)-O-center dot scavenger. Out of the examined processes, O-3 had the highest degradation rate for TMP and H2O2/O-3 showed highest degradation rate for CIP and CPD. The electrical energy consumption for both CIP and CPD, as calculated using the E-EO parameter, was in the following order: UV > UV/O-3 > UV/H2O2/O-3 > O-3 > H2O2/O-3. Whereas for TMP O-3 was shown to be the most electrical energy efficient. Twelve degradation byproducts were identified following direct UV photolysis of CIP.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available