Device and methods for continuous flow separation of particles by gas dissolution

• Main Authors: SHIN SANGWOO, SHARDT OREST, STONE HOWARD A, WARREN PATRICK B
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2019
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Disclosed is a separation device and a method for separating charged particles from a liquid stream. The separation is effected by establishing an ion concentration gradient across the direction of the liquid stream by the introduction of a gas which when contacted with the liquid, in a reversible reaction, forms a soluble ionic species. A concentration gradient is maintained across the directionof the liquid stream which in turn induces separation of charged particles within the liquid stream due to the effect of diffusiophoresis. The device operates using little or no power, and dispenses with the need for filtration media or separation membranes. The device and method is adaptable to any of a number of separation processes, including biological separation processes, water purificationand industrial processes. 公开了用于从液体流中分离带电颗粒的一种分离装置和方法。通过引入气体在液体流的方向上建立离子浓度梯度来实现分离，当气体与液体接触时，在可逆反应中形成可溶性离子物质。在液体流的方向上保持浓度梯度，这随即由于扩散电泳的作用而引发液体流内带电颗粒的分离。该装置在很少或没有动力的情况下运行，并且不需要过滤介质或分离膜。该装置和方法适用于许多分离过程中的任何一种，包括生物分离过程、水净化和工业过程。