Polymerization and oxidation of phenols in supercritical water-Reference-Cited by-同舟云学术

Polymerization and oxidation of phenols in supercritical water

Published:2019-08-15 Issue:4 Volume:80 Page:620-633
ISSN:0273-1223
Container-title:Water Science and Technology
language:en
Short-container-title:

Author:

Zhang Huiwen¹,Zhang Xiaoman²,Ding Lei³,Gong Miao⁴,Su Ying⁵,Wang Shengwei⁶

Affiliation:

1. Anhui University of Technology, Maanshan 243000, China

2. School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan 243000, China

3. Engineering Research Center of Biomembrane Water Purification and Utilization Technology, 59 Hudong Road, Maanshan 243000, Anhui, Anhui University of Technology, Maanshan 243000, China

4. Hefei University of Technology, Hefei 230009, China

5. Yancheng Institute of Technology, Yancheng 221051, China

6. Yangzhou University, Yangzhou 225009, China

Abstract

Abstract The treatment of toxic and difficult-to-degrade phenolic compounds has become a key issue in the coking, pharmaceutical, and chemical industries. Considering the polymerization and oxidation of phenolic compounds in supercritical water partial oxidation/supercritical water oxidation (SCWPO/SCWO), the present study reviewed the removal efficiency and reaction pathway of phenolic compounds and phenolic waste/wastewater under different reaction conditions. Temperature is the dominant factor affecting the SCWO reaction. When the oxidizing ability is insufficient, the organics polymerize to form phenolic compounds. The gradual increase of oxidant equivalent causes the intermediate product to gradually oxidize to CO2 and H2O completely. Finally, the free radical reaction mechanism is considered to be a typical SCWO reaction mechanism.

Funder

Natural Science Foundation of Anhui Province

the Natural Science Foundation of P.R. China

Ministry of Housing and Urban-Rural Development of the People’s Republic of China research and development project

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Link

http://iwaponline.com/wst/article-pdf/80/4/620/621463/wst080040620.pdf

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