The synthesis of a novel magnetic demulsifier and its application for the demulsification of oil-charged industrial wastewaters

被引：109

作者：

Li, Shuqiang ^{[1
]}

Li, Naixu ^{[1
]}

Yang, Shanbo ^{[1
]}

Liu, Fangyuan ^{[1
]}

Zhou, Jiancheng ^{[1
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 01期

基金：

中国国家自然科学基金;

关键词：

WASTE-WATER; IN-WATER; REMOVAL; EMULSION; NANOPARTICLES; FLOTATION;

D O I：

10.1039/c3ta12952g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Water produced from alkaline-surfactant-polymer flooding technology is more difficult to treat than that from water flooding. In this study, a novel magnetic demulsifier, called M-5010, was synthesized through the reaction of 5010, a type of demulsifier currently used in oilfields, and epoxy group functionalized Fe3O4@SiO2 microspheres. The oil removal rates and effect of the demulsifier dosage as well as the settling time were investigated. It was found that the oil removal rate of M-5010 was higher than that of 5010 under the same conditions. In addition, M-5010 can be recycled and reused by using an external magnetic field that acts as a material phase separator. Accordingly, we found that M-5010 is still effective after being reused for 5 cycles. Our results indicate that the magnetic demulsifier we fabricated can be used as an effective and recyclable material for the removal of oil from oil contaminated wastewater.

引用

页码：94 / 99

页数：6

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