Back to Search
Start Over
Treatability of cefazolin antibiotic formulation effluent with O3 and O3/H2O2 processes.
- Source :
-
Water Science & Technology . 2007, Vol. 55 Issue 10, p217-225. 9p. - Publication Year :
- 2007
-
Abstract
- The effect of applying ozonation and perozonation to antibiotic cefazolin-Na formulation effluents were investigated in this study. Twenty minutes of ozonation at a rate of 1,500 mg/L-h was observed to remove COD by 38%, whereas a COD removal efficiency of 40% was achieved via H2O2 enhanced ozonation (same conditions + 31.25 mM H202). Both of the pretreatment alternatives were monitored to elevate the BOD5/COD ratio from 0.01 to 0.08. The initially inert COD was reduced by 38% using ozonation and by 60% employing H2O2 enhanced ozonation. In terms of the lowest achievable effluent COD levels after bio-treatment, ozonation was observed to yield a residual COD of 205 mg L-1, while a residual COD of 135 mgL-1 was involved for perozonation. According to the results of acute toxicity on Phaedactylum tricornutum, ozonated and perozonated samples exhibited more toxicity than the untreated effluent after 4 days. The activated sludge inhibition test demonstrated that both of the pretreatment alternatives efficiently eliminated the inhibition of investigated formulation effluent. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02731223
- Volume :
- 55
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Water Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 25498786
- Full Text :
- https://doi.org/10.2166/wst.2007.325