高级氧化工艺对聚丙烯酰胺的化学降解。

Chemical degradation of polyacrylamide by advanced oxidation processes.

机构信息

School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Taoyang Road, Jingdezhen 333001, Jiangxi Province, China.

出版信息

Environ Technol. 2012 Apr-May;33(7-9):1021-8. doi: 10.1080/09593330.2011.606279.

DOI:10.1080/09593330.2011.606279

PMID:22720429

Abstract

This paper presents the results obtained from the oxidation of polyacrylamide (PAM) by the UV/H2O2, Fenton, UV/Fenton, visible light/Fenton, visible light/Fenton/C2O4(2-), UV/Fenton/C2O4(2-), visible light/Fenton/C4H4O6(2-) and UV/Fenton/C4H4O6(2-) processes. Degradation efficiency for PAM had the following order: UV/Fenton/C4H4O6(2-) > UV/Fenton/C2O4(2-) > visible light/Fenton/C4H4O6(2-) > visible light/Fenton/C2O4(2-) > UV/Fenton > visible light/Fenton > UV/H2O2 > Fenton. The addition of tartrate had a positive effect on chemical oxygen demand (COD) removal. Increasing the concentrations of reagents promoted the oxidation of PAM by the UV/Fenton/C4H4O6(2-) process. The presence of NaCl led to large decreases in the COD removal in the PAM solution.

摘要

本文介绍了 UV/H2O2、Fenton、UV/Fenton、可见光/Fenton、可见光/Fenton/C2O4(2-)、UV/Fenton/C2O4(2-)、可见光/Fenton/C4H4O6(2-) 和 UV/Fenton/C4H4O6(2-) 等过程中用过氧化氢氧化聚丙烯酰胺（PAM）的结果。PAM 的降解效率按以下顺序排列：UV/Fenton/C4H4O6(2-) > UV/Fenton/C2O4(2-) > 可见光/Fenton/C4H4O6(2-) > 可见光/Fenton/C2O4(2-) > UV/Fenton > 可见光/Fenton > UV/H2O2 > Fenton。酒石酸盐的添加对化学需氧量（COD）的去除有积极影响。增加试剂的浓度促进了 UV/Fenton/C4H4O6(2-) 过程中 PAM 的氧化。NaCl 的存在导致 PAM 溶液中 COD 的去除率大幅下降。