A5102834950- Advanced oxidation water treatment
- Pharmaceutical and Antibiotic Environmental Impacts
- Water Treatment and Disinfection
- Advanced Photocatalysis Techniques
- Marine and coastal ecosystems
- Recycling and Waste Management Techniques
- Water Quality Monitoring and Analysis
- Municipal Solid Waste Management
- Chemistry and Chemical Engineering
- Wastewater Treatment and Reuse
- Thermochemical Biomass Conversion Processes
- Air Quality Monitoring and Forecasting
- Constructed Wetlands for Wastewater Treatment
- Nanomaterials for catalytic reactions
- Phosphorus and nutrient management
- Wastewater Treatment and Nitrogen Removal
- Geochemistry and Elemental Analysis
- Microbial Fuel Cells and Bioremediation
- Photodynamic Therapy Research Studies
- Fiber-reinforced polymer composites
- Microbial Community Ecology and Physiology
- Groundwater and Isotope Geochemistry
- Electrochemical Analysis and Applications
- Biochemical and biochemical processes
- Chemical Synthesis and Characterization
Tianjin University
2015-2025
Georgia Institute of Technology
2015
To minimize environmental pharmaceutical micropollutants, treatment of human urine could be an efficient approach due to the high concentration and toxic potential excreted in urine. This study investigated degradation kinetics mechanisms sulfamethoxazole (SMX), trimethoprim (TMP) N4-acetyl-sulfamethoxazole (acetyl-SMX) synthetic fresh hydrolyzed urines by low-pressure UV, UV combined with H2O2 peroxydisulfate (PDS). The objective was compare two advanced oxidation processes (AOPs) assess...
Photoactivation of aqueous chlorine could promote degradation chlorine-resistant and photochemically stable chemicals accumulated in swimming pools. This study investigated the two such chemicals, N,N-diethyl-3-methylbenzamide (DEET) caffeine, by low pressure ultraviolet (UV) light simulated sunlight (SS) activated free (FC) different water matrices. Both DEET caffeine were rapidly degraded UV/FC SS/FC but exhibited kinetic behaviors. The followed pseudo-first-order kinetics, whereas...
Elimination of pharmaceuticals in source-separated human urine is a promising approach to minimize the environment. Although degradation kinetics by UV/H2O2 and UV/peroxydisulfate (PDS) processes has been investigated synthetic fresh hydrolyzed urine, comprehensive evaluation advanced oxidation (AOPs), such as product identification toxicity testing, not yet performed. This study identified transformation products two commonly used antibiotics, trimethoprim (TMP) sulfamethoxazole (SMX),...
Monochloramine (NH2Cl) can be irradiated by UV to create an advanced oxidation condition (i.e., UV/NH2Cl) for the elimination of organic micropollutants (OMPs) from source water. However, information in retrospective studies was scarce on how UV/NH2Cl performance would affected water matrix and OMP molecular structures. In this study, degradation five representative OMPs, including triclosan, carbamazepine, sulfamethoxazole, estradiol (E2), ethinylestradiol (EE2), examined different...
The combination of chlorine and UV (i.e., chlorine–UV process) has been attracting more attention in recent years due to its ready incorporation into existing water treatment facilities remove PPCPs. However, limited information is available on the impact total ammonia nitrogen (TAN). This study investigated two model PPCPs, N,N-diethyl-3-toluamide (DEET) caffeine (CAF), stages process chlorination UV/chlor(am)ine) elucidate TAN. During chlorination, degradation DEET CAF was positively...
This study proposes a novel disinfection process by sequential application of peracetic acid (PAA) and ultraviolet light (UV), on the basis elucidation mechanisms under UV/PAA. Results show that hydroxyl radicals, generated UV-activated PAA, contribute to enhanced inactivation Escherichia coli UV/PAA compared PAA alone or UV alone. Furthermore, location radical generation is critical factor. Unlike UV/H2O2, which generates radicals mainly in bulk solution, are produced close inside E. cells,...
There is increasing concern about the severe endocrine-related health problems because of discharge estrogenic disrupting chemicals (EDCs) into natural environment. In this study, we investigated activation monochloramine (NH2Cl) by biochar [pyrolyzed cotton straw at 350 °C (Cot350), wheat and 700 (WS350 WS700), corn (CS350 CS700)] for degradation estradiol (E2) ethinylestradiol (EE2). Approximately 95% parent E2 EE2 was removed Cot350/NH2Cl in buffered solution, 87% 75% were urine within 24...
Soil in the vadose zone is an important sink for antibiotics. However, previous studies have examined only degradation of antibiotics soil slurry systems, which were largely different from real-world unsaturated environments. Whether same transformation mechanisms apply to systems has been a question. Here, sulfamethoxazole (SMX) by manganese dioxide (γ-MnO2) both suspension and evaporation processes examined. Results show that slow SMX system can be significantly promoted as water gradually...
The high concentration of penicillin antibiotics in wastewater inhibits the function biological treatment systems. In this study, we optimized goethite (FeOOH)–Zn(II) system and used hydrolysis pretreatment process for selective removal from pharmaceutical wastewater. results showed that could be rapidly completely hydrolyzed 20 min with an FeOOH 500 mg/L a zinc ions 30 μM, premixing time 2 h at pH 8.2 room temperature. influence cations on was found to negligible, while phosphate natural...