公开(公告)号：US20150251141A1

公开(公告)日：2015-09-10

申请号：US14440641

申请日：2013-11-05

Applicant: UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION

Inventor： Pierre D. Mourad ,  Jaffer Alali ,  Brian Macconaghy

IPC: B01D71/68 ,  B01D71/56 ,  C02F1/44 ,  B01D71/02 ,  B01D71/34 ,  B01D65/08 ,  B01D61/00

CPC classification number: B01D71/68 ,  B01D61/00 ,  B01D63/10 ,  B01D63/16 ,  B01D65/08 ,  B01D71/024 ,  B01D71/34 ,  B01D71/56 ,  B01D2313/90 ,  B01D2321/2058 ,  B01D2321/2075 ,  C02F1/44 ,  C02F2101/10 ,  C02F2103/08 ,  C02F2303/22

Abstract: Described herein are apparatuses and methods for preventing or otherwise reducing scaling and fouling of a membrane using ultrasonic vibrations. One example method involves: (1) directing a solution to a membrane of a membrane assembly, where the membrane passes a solvent of the solution through the membrane at a first rate, and where the membrane prevents at least some of a solute of the solution from passing through the membrane; and (2) causing a piezoelectric material that is physically coupled to the membrane to produce ultrasonic waves directed at the membrane, where the ultrasonic waves induce oscillations in at least a portion of the membrane and thereby the solvent of the solution passes through the membrane at a second rate that is greater than the first rate.

Abstract translation: 这里描述的是使用超声波振动防止或以其他方式减少膜的结垢和结垢的装置和方法。 一个示例性方法包括：（1）将溶液引导到膜组件的膜上，其中膜以第一速率通过溶液的溶剂通过膜，并且其中膜防止溶液的至少一部分溶液 通过膜; 和（2）使物理耦合到膜的压电材料产生指向膜的超声波，其中超声波在至少一部分膜中引起振荡，从而溶液的溶剂通过膜在 第二个比第一个比率高。