EDTA and electricity synergetic catalyzed Fe(3+)/H2O2 process for amoxicillin oxidation.
Water Sci Technol
; 60(3): 761-70, 2009.
Article
in En
| MEDLINE
| ID: mdl-19657172
ABSTRACT
Three oxidation processes for amoxicillin wastewater pretreatment such as Electro-Fe(3+)(EDTA)/H2O2 (EDTA ethylenediaminetetraacetic acid), Fe(3+)(EDTA)/H2O2 and Electro-Fe(3+)/H2O2 were simultaneously discussed at pH of 7.0 (+/-0.1). It was found that the above processes could achieve 78%, 64%, 33% chemical oxygen demand (COD(cr)) removal, and 86%, 70%, 47% amoxicillin degradation respectively. Moreover, the results of biodegradability (biological oxygen demand (BOD(5))/COD(cr) ratio) showed that the Electro-Fe(3+)(EDTA)/H2O2 process was a promising way to pretreat antibiotic wastewater due to the biodegradability of the effluent improved to 0.48 compared with the cases of Fe(3+)(EDTA)/H2O2 (0.40) and Electro-Fe(3+)/H2O2 process (0.12). Therefore, it was reasonable to note that EDTA and electricity showed synergetic effect on the oxidation process. Additionally, infrared spectra (IR) were applied to concisely propose a potential degradation way of amoxicillin. The characteristic changes of H2O2 and EDTA in the oxidation process were also investigated in detail.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Edetic Acid
/
Electricity
/
Amoxicillin
/
Hydrogen Peroxide
/
Iron
Language:
En
Journal:
Water Sci Technol
Journal subject:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2009
Document type:
Article
Affiliation country:
China