Health & Environmental Research Online (HERO)


Print Feedback Export to File
2575326 
Journal Article 
Degradation of antibiotics in water by non-thermal plasma treatment 
Magureanu, M; Piroi, D; Mandache, NB; David, V; Medvedovici, A; Bradu, C; Parvulescu, VI 
2011 
1 
Water Research
ISSN: 0043-1354
EISSN: 1879-2448 
45 
11 
3407-3416 
English 
21514950 
WOS:000291499100015 
The decomposition of three β-lactam antibiotics (amoxicillin, oxacillin and ampicillin) in aqueous solution was investigated using a dielectric barrier discharge (DBD) in coaxial configuration. Solutions of concentration 100 mg/L were made to flow as a film over the surface of the inner electrode of the plasma reactor, so the discharge was generated at the gas-liquid interface. The electrical discharge was operated in pulsed regime, at room temperature and atmospheric pressure, in oxygen. Amoxicillin was degraded after 10 min plasma treatment, while the other two antibiotics required about 30 min for decomposition. The evolution of the degradation process was continuously followed using liquid chromatography-mass spectrometry (LC-MS), total organic carbon (TOC) and chemical oxygen demand (COD) analyses. 
Non-thermal plasma; Dielectric barrier discharge; Antibiotics; Water pollutants removal