Superhydrophilic Functionalization of Microfiltration Ceramic Membranes Enables Separation of Hydrocarbons from Frac and Produced Water.
Superhydrophilic Functionalization of Microfiltration Ceramic Membranes Enables Separation of Hydrocarbons from Frac and Produced Water.
复制标题
DOI：
10.1038/s41598-017-12499-w
复制
发表时间：
2017-09-25
影响因子：
4.6
通讯作者：
Barron AR
中科院分区：
文献类型：
--
作者：
Maguire-Boyle SJ;Huseman JE;Ainscough TJ;Oatley-Radcliffe DL;Alabdulkarem AA;Al-Mojil SF;Barron AR
通过水力压裂法（压裂法）生产页岩油气的环境影响日益受到关注。环境污染的最大潜在来源是返排和采出水，其被碳氢化合物、细菌和颗粒高度污染，这意味着传统的膜很容易被污染。我们表明，用磺基丙氨酸对氧化铝陶瓷微滤膜（孔径为0.22 μm）进行化学官能化，可产生超亲水表面，从而在不结垢的情况下从压裂液和采出沃茨中分离烃类。所有样品的单程截留系数>90%。当烃的流体动力学直径小于膜的孔径时，烃与水的分离是由于两性离子带电的超亲水性孔表面。基本上消除了膜污染，同时在比未处理的膜实现相同通量所需的压力（4-8巴）更低的压力（<2巴）下获得比通量。
The environmental impact of shale oil and gas production by hydraulic fracturing (fracking) is of increasing concern. The biggest potential source of environmental contamination is flowback and produced water, which is highly contaminated with hydrocarbons, bacteria and particulates, meaning that traditional membranes are readily fouled. We show the chemical functionalisation of alumina ceramic microfiltration membranes (0.22 μm pore size) with cysteic acid creates a superhydrophilic surface, allowing for separation of hydrocarbons from frac and produced waters without fouling. The single pass rejection coefficients was >90% for all samples. The separation of hydrocarbons from water when the former have hydrodynamic diameters smaller than the pore size of the membrane is due to the zwitter ionically charged superhydrophilic pore surface. Membrane fouling is essentially eliminated, while a specific flux is obtained at a lower pressure (<2 bar) than that required achieving the same flux for the untreated membrane (4–8 bar).
登录
查看更多内容
DOI：
10.1073/pnas.1511474112
发表时间：
2015-10-27
影响因子：
11.1
作者：
Drollette, Brian D.;Hoelzer, Kathrin;Plata, Desiree L.
通讯作者：
Plata, Desiree L.
影响因子：
12.7
作者：
Johnston, Jill E.;Werder, Emily;Sebastian, Daniel
通讯作者：
Sebastian, Daniel
影响因子：
3.4
作者：
Akob, Denise M.;Cozzarelli, Isabelle M.;Lorah, Michelle M.
通讯作者：
Lorah, Michelle M.
影响因子：
9.5
作者：
Alexander, Shirin;Eastoe, Julian;Barron, Andrew R.
通讯作者：
Barron, Andrew R.
影响因子：
1.1
作者：
Rao, Guiying;Li, Ying
通讯作者：
Li, Ying