Optimization of Fenton process for treatment of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution

M., Chaudhuri and E., Elmolla (2009) Optimization of Fenton process for treatment of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution. [Citation Index Journal]

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Abstract

The study examined the effect of operating conditions of the Fenton process on biodegradability improvement and mineralization of amoxicillin, ampicillin and cloxacillin antibiotics in aqueous solution. In addition, degradation of amoxicillin, ampicillin and cloxacillin under optimum operating conditions were evaluated. The optimum operating conditions for an aqueous solution containing 104, 105 and 103 mg/L amoxicillin, ampicillin, and cloxacillin, respectively were observed to be COD/H2O2/Fe2+ molar ratio 1:3:0.30 and pH 3. Under optimum operating conditions, complete degradation of amoxicillin, ampicillin and cloxacillin occurred in 2 min. In addition, biodegradability improved from ∼0 to 0.37 in 10 min, and COD and DOC degradation were 81.4% and 54.3%, respectively in 60 min. Maximum biodegradability (BOD<sub>5</sub>/COD ratio) improvement was achieved in 10, 20 and 40 min at antibiotics concentration 100, 250 and 500 mg/L, respectively for each antibiotic in aqueous solution. Increase in nitrate and ammonia concentration were observed due to mineralization of organic nitrogen, concentration of nitrate increased from 0.3 to 10 mg/L and concentration of ammonia increased from 8 to 13 mg/L in 60 min. The study indicated that Fenton process can be used for pretreatment of amoxicillin, ampicillin and cloxacillin wastewater for biological treatment. © 2009 Elsevier B.V. All rights reserved.

Item Type: Citation Index Journal
Uncontrolled Keywords: Ammonia concentrations; Amoxicillin; Ampicillin; Aqueous solutions; Biological treatment; Cloxacillin; Concentration of; Fenton process; Molar ratio; Operating condition; Optimum operating conditions; Organic nitrogen; Pre-Treatment; Ammonia; Biochemical engineering; Biodegradability; Biodegradation; Biological water treatment; Chemical oxygen demand; Concentration (process); Degradation; Mineralogy; Wastewater; Wastewater treatment; Antibiotics; ammonia; amoxicillin; ampicillin; cloxacillin; dissolved oxygen; hydrogen peroxide; iron; nitrate; organic nitrogen; ammonia; antibiotics; aqueous solution; biodegradation; concentration (composition); mineralization; nitrate; optimization; waste treatment; aqueous solution; article; biochemical oxygen demand; biodegradability; chemical oxygen demand; controlled study; Fenton reaction; mineralization; oxidation kinetics; pH; process optimization; waste water management
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments / MOR / COE: Departments > Civil Engineering
Depositing User: Prof Malay Chaudhuri
Date Deposited: 17 Feb 2010 09:33
Last Modified: 19 Jan 2017 08:25
URI: http://scholars.utp.edu.my/id/eprint/35

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