Application of micro-vortex flocculator technology
Feb 05,2020
The flocculation mechanism of micro-vortex flocculator mainly includes two processes: micro-vortex condensation and micro-vortex flocculation contact.
① The micro-vortex flocculator is a process in which the colloid particles are destabilized and tiny aggregates are formed. Because water flows in and out of the vortex reactor to form a vortex, there is a large flow velocity difference between the stratospheres and the relative movement of the colloidal particles in the laminar flow, which increases the probability of collision between the colloidal particles; at the same time, the The vortex movement forms a centrifugal force, which causes the colloidal particles to move radially, which also increases the collision and contact between colloidal particles in water. Therefore, the micro-vortex flow formed by the vortex reactor can increase the probability of colloidal particles in the water to diffuse and collide. At the same time, the colloidal particles formed by the hydrolysis of the coagulant can quickly diffuse and collide with the colloidal particles in the water to quickly destabilize and desorb. The stabilized colloidal particles increase the probability of collision under the action of micro-eddy currents, thereby improving the aggregation efficiency of the colloidal particles.
② Micro-vortex flocculator refers to the process of destabilizing colloids and small suspended matter in water to agglomerate into large floes. When water flows through the vortex reactor, the flow velocity inside the reactor is smaller than the external flow velocity, so that a large number of flocs (alum flowers) are suspended and accumulated inside the reactor cavity, and the destabilized colloidal particles passing through are adsorbed and flocculated. Contact flocculation occurs. When the floc in the cavity of the vortex reactor grows to a certain degree, the floc with a lower density will be broken under the action of the micro vortex. After the crushing, the flocculation will be re-flocculated into a floc with a higher density, which is beneficial to the follow-up. The precipitate was isolated.