Abstract
This study investigated the removal efficiency of MEA by the established AOPs (O3/H2O2 and UV/H2O 2) and electron beam irradiation process. Since large ozone doses or high energy inputs were required even for incomplete MEA removal, it was found that MEA was difficult to treat with the general AOPs. However, the electron beam irradiation was efficient at degrading the MEA and the removal kinetics of MEA followed the pseudo first order. Although MEA was mainly degraded by the reaction with the OH• in the electron beam process, the e- aq also contributed to MEA removal and the rate constant between MEA and e-aq at pH 11 was predicted from this study. The NH4+, a byproduct of the degradation of MEA, was produced during the electron beam irradiation. The effect of the initial pH values on the MEA removal efficiency was negligible, but the pH value decreases due to the degradation of MEA and the formation of acidic compounds after irradiation. The BOD5/COD ratio was used as a biodegradability indicator and the energy consumption was evaluated by the EE/O values. Consequently, the electron beam process is proposed as a strong candidate among AOPs in removing high concentrations of MEA.
| Original language | English |
|---|---|
| Pages (from-to) | 301-309 |
| Number of pages | 9 |
| Journal | Journal of Advanced Oxidation Technologies |
| Volume | 15 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2012 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
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Degradation of monoethanolamine by electron beam irradiation : Kinetic study and comparison with O3 and UV AOPs. / Yoon, Yeojoon; Kwon, Minhwan; Lee, Byung Cheol; Kang, Joonwun.
In: Journal of Advanced Oxidation Technologies, Vol. 15, No. 2, 01.01.2012, p. 301-309.Research output: Contribution to journal › Article
TY - JOUR
T1 - Degradation of monoethanolamine by electron beam irradiation
T2 - Kinetic study and comparison with O3 and UV AOPs
AU - Yoon, Yeojoon
AU - Kwon, Minhwan
AU - Lee, Byung Cheol
AU - Kang, Joonwun
PY - 2012/1/1
Y1 - 2012/1/1
N2 - This study investigated the removal efficiency of MEA by the established AOPs (O3/H2O2 and UV/H2O 2) and electron beam irradiation process. Since large ozone doses or high energy inputs were required even for incomplete MEA removal, it was found that MEA was difficult to treat with the general AOPs. However, the electron beam irradiation was efficient at degrading the MEA and the removal kinetics of MEA followed the pseudo first order. Although MEA was mainly degraded by the reaction with the OH• in the electron beam process, the e- aq also contributed to MEA removal and the rate constant between MEA and e-aq at pH 11 was predicted from this study. The NH4+, a byproduct of the degradation of MEA, was produced during the electron beam irradiation. The effect of the initial pH values on the MEA removal efficiency was negligible, but the pH value decreases due to the degradation of MEA and the formation of acidic compounds after irradiation. The BOD5/COD ratio was used as a biodegradability indicator and the energy consumption was evaluated by the EE/O values. Consequently, the electron beam process is proposed as a strong candidate among AOPs in removing high concentrations of MEA.
AB - This study investigated the removal efficiency of MEA by the established AOPs (O3/H2O2 and UV/H2O 2) and electron beam irradiation process. Since large ozone doses or high energy inputs were required even for incomplete MEA removal, it was found that MEA was difficult to treat with the general AOPs. However, the electron beam irradiation was efficient at degrading the MEA and the removal kinetics of MEA followed the pseudo first order. Although MEA was mainly degraded by the reaction with the OH• in the electron beam process, the e- aq also contributed to MEA removal and the rate constant between MEA and e-aq at pH 11 was predicted from this study. The NH4+, a byproduct of the degradation of MEA, was produced during the electron beam irradiation. The effect of the initial pH values on the MEA removal efficiency was negligible, but the pH value decreases due to the degradation of MEA and the formation of acidic compounds after irradiation. The BOD5/COD ratio was used as a biodegradability indicator and the energy consumption was evaluated by the EE/O values. Consequently, the electron beam process is proposed as a strong candidate among AOPs in removing high concentrations of MEA.
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UR - http://www.scopus.com/inward/citedby.url?scp=84864616491&partnerID=8YFLogxK
U2 - 10.1515/jaots-2012-0208
DO - 10.1515/jaots-2012-0208
M3 - Article
VL - 15
SP - 301
EP - 309
JO - Journal of Advanced Oxidation Technologies
JF - Journal of Advanced Oxidation Technologies
SN - 1203-8407
IS - 2
ER -