Treatment of amoxicillin by O3/Fenton process in a rotating packed bed

Mo Li; Zequan Zeng; Yingwen Li; Moses Arowo; Jianfeng Chen; Hong Meng; Lei Shao

doi:10.1016/j.jenvman.2014.12.019

Treatment of amoxicillin by O3/Fenton process in a rotating packed bed

J Environ Manage. 2015 Mar 1:150:404-411. doi: 10.1016/j.jenvman.2014.12.019. Epub 2015 Jan 2.

Authors

Mo Li¹, Zequan Zeng², Yingwen Li¹, Moses Arowo¹, Jianfeng Chen¹, Hong Meng³, Lei Shao⁴

Affiliations

¹ State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China; Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China.
² State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, PR China.
³ College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China. Electronic address: menghong@mail.buct.edu.cn.
⁴ State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China; Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, PR China. Electronic address: shaol@mail.buct.edu.cn.

PMID: 25560654
DOI: 10.1016/j.jenvman.2014.12.019

Abstract

In this study, simulated amoxicillin wastewater was treated by the O3/Fenton process in a rotating packed bed (RPB) and the results were compared with the Fenton process and the O3 followed by Fenton (O3 + Fenton) process. The chemical oxygen demand (COD) removal rate and the ratio of 5-day biological oxygen demand to chemical oxygen demand (BOD5/COD) in the O3/Fenton process were approximately 17% and 26%, respectively, higher than those in the O3 + Fenton process with an initial pH of 3. The COD removal rate of the amoxicillin solution reached maximum at the Fe(II) concentration of 0.6 mM, temperature of 25 °C, rotation speed of 800 rpm and initial pH of 3. The BOD5/COD of the amoxicillin solution increased from 0 to 0.38 after the solution was treated by the O3/Fenton process. Analysis of the intermediates indicated that the pathway of amoxicillin degradation in the O3/Fenton process was similar to that in the O3 + Fenton process. Contrast experiment results showed that amoxicillin degradation was significantly intensified in the RPB.

Keywords: Amoxicillin; Biodegradability; Fenton; Ozone; Rotating packed bed.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Amoxicillin / chemistry*
Anti-Bacterial Agents / chemistry*
Bioreactors*
Humans
Hydrogen Peroxide / chemistry
Iron / chemistry
Ozone / chemistry
Wastewater / chemistry

Substances

Anti-Bacterial Agents
Fenton's reagent
Waste Water
Ozone
Amoxicillin
Hydrogen Peroxide
Iron