A block polyether designed quantitatively by HLD concept for recovering oil from wastewater

作者：Duan, Ming^*; Wang, Chengjie; Song, Xianyu; Fang, Shenwen; Ma, Yongzhang; Tao, Tao

来源：Chemical Engineering Journal, 2016, 302: 44-49.

DOI：10.1016/j.cej.2016.05.036

• Oil-in-water emulsions
• Block polyether
• HLD
• Coalescence kinetics

So far, the functional polymer molecular design is both a hot research topic, but also a difficult problem. In this paper, a new principle of designing polyether for recovering oil from wastewater has been proposed according to the hydrophilic-lipophilic,deviation (HLD) concept. The key parameter of polyether (ethylene oxide/propylene oxide) has been calculated. The designed polymer has been synthesized, and the oil removal experiment has been performed to confirm the effectiveness. The droplet-to planar coalescence experiment was used to study the deoiling mechanism. The results showed that the designed and synthesized block polyether was effective in deoiling of oily wastewater. The deoiling mechanism indicated that the addition of synthesized polymer can promote the coalescence of oil droplets to realize phase separation.

• 出版日期2016-10-15
• 单位西南石油大学