文章基本信息

标题：Fenton-like oxidation of Hydroxypropyl guar gum catalysed by Cu(II) complex at high pH
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作者：Weijun Ni ; Yubo Lian ; Yan Wei 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2021
卷号：329
页码：1-4
DOI：10.1051/e3sconf/202132901005
语种：English
出版社：EDP Sciences
摘要：Large amounts of wastewater containing hydroxypropyl guar gum (HPGG), polyacrylamide (PAM) and carboxymethyl cellulose (CMC) are produced in the process of fracturing. In the work, a Fentonlike system in the presence of H2O2 was employed to degrade wastewater. The effects of oxidant concentration, catalyst dosage, the temperature and pH on the degradation efficiency of the polymer were studied in detail. Results showed that the prepared complex (Cu(II)L) exhibited a great catalytic effects in the range of pH 7-12. It was also found that under the conditions of 45℃ and pH=10, when the amount of H2O2 was 5.0% (mass ratio to hydroxypropyl guar gum) and the amount of Cu (II)L complex was 10%, HPGG had a great reduction rate, and its viscosity value can be reduced from 18 to 6.47.
关键词：Guar gum;wastewater treatment;Fenton-like oxidation