公开(公告)号：US20170088441A1

公开(公告)日：2017-03-30

申请号：US15312190

申请日：2014-07-21

Applicant: East China University of Science and Technology

Inventor： Qiang YANG ,  Hao LU ,  Jiabin ZHU ,  Xiao XU ,  Yiqian LIU

IPC: C02F1/40

CPC classification number: C02F1/40 ,  C02F1/006 ,  C02F1/288 ,  C02F2101/32 ,  C02F2103/10 ,  C02F2103/365

Abstract: The present invention relates to a method and a device for deep oil removal from wastewater containing a low concentration of wasteoil. Wastewater containing a low concentration of wasteoil enters the device via an inlet and passes through a flow conditioner, causing the fluid to become uniformly distributed. Then, by means of a layer of oleophilic-hydrophobic fibers and hydrophilic-oleophobic fibers woven in a certain manner, a trace of oil droplets are captured and then coalesce and grow on the layer, and a trace of oil-in-water emulsion is demulsified and separated on the layer. Finally, by means of corrugation-enhanced sedimentation and separation, the oil droplets coalesce and grow and are then separated rapidly. The invention also provides a set of devices for implementing the method, having several parts such as a housing, a feed pipe, a flow conditioner, a fiber coalescence layer, a corrugation-enhanced separation layer, and a level gauge. The present technique is highly efficient in separation, consumes little power, and can operate continuously for a long period of time. Thus, this technique can be widely used in processes for treating wastewater containing a low concentration of wasteoil.

公开(公告)号：US20240058773A1

公开(公告)日：2024-02-22

申请号：US18260176

申请日：2021-03-25

Applicant: East China University of Science and Technology

Inventor： Hao LU ,  Qiang YANG ,  Yudong LI ,  Yiqian LIU ,  Pinyi DAI ,  Shihan WU

IPC: B01F23/41 ,  B01F23/451 ,  B01F25/20 ,  B01F25/21 ,  B01F25/10 ,  B01F25/4314 ,  B01F25/433

CPC classification number: B01F23/4105 ,  B01F23/4143 ,  B01F23/451 ,  B01F25/28 ,  B01F25/211 ,  B01F25/103 ,  B01F25/43141 ,  B01F25/4334 ,  B01F2025/916

Abstract: The invention provides a device for enhancing liquid-liquid emulsification. The device includes a jet part and a mixing part connected to the jet part. The jet part includes a feed tee for feeding major and dispersed phases, wherein the feed tee includes a first port, a second port, and a third port. The first port is used for feeding the major phase, and the second port is equipped with an ejector for feeding the dispersed phase. The ejector consists of an ejector housing and an ejector inlet section, as well as a spiral structure, a flow-guided structure, and an ejector pin structure that are connected sequentially. The mixing part includes a mixer comprising a cylindrical mixer shell, a mixer inlet section, a mixer outlet section, as well as a spiral section, a cavity section, and a variable diameter section for enhancing emulsion breakup and dispersion. A method for enhancing liquid-liquid emulsification is also disclosed. The emulsion produced by the device and method of the invention is uniformly dispersed, has long stability, and the device has a compact structure and low energy consumption. It is particularly suitable for liquid-liquid emulsification processes in fields such as chemical industry, food, coatings, and cosmetics.