Compact wastewater concentrator using waste heat

摘要

A compact and portable liquid concentrator includes a gas inlet, a gas exit and a flow corridor connecting the gas inlet and the gas exit, wherein the flow corridor includes a narrowed portion that accelerates the gas through the flow corridor. A liquid inlet injects liquid into the gas stream at a point prior to the narrowed portion so that the gas-liquid mixture is thoroughly mixed within the flow corridor, causing a portion of the liquid to be evaporated. A demister or fluid scrubber downstream of the narrowed portion removes entrained liquid droplets from the gas stream and re-circulates the removed liquid to the liquid inlet through a re-circulating circuit. Fresh liquid to be concentrated is also introduced into the re-circulating circuit at a rate sufficient to offset the amount of liquid evaporated in the flow corridor.

主权项

1. A liquid concentrator system, comprising:
a concentrator section including;
a gas inlet,a gas outlet,a mixing corridor disposed between the gas inlet and the gas outlet, the mixing corridor having a narrowed portion in which gas flow within the mixing corridor accelerates when traveling from the gas inlet to the gas outlet; anda liquid inlet through which liquid to be concentrated is injected into the mixing corridor, the liquid inlet disposed in the mixing corridor between the gas inlet and the narrowed portion; a demister disposed downstream of the concentrator section, the demister including;
a demister gas flow passage coupled to the gas outlet of the concentrator section,a liquid collector disposed in the demister gas flow passage to remove liquid from gas flowing in the demister gas flow passage, anda reservoir that collects the liquid removed from the gas flowing in the demister gas flow passage by the liquid collector; and a fan coupled to the demister to assist gas flow through the mixing corridor and the gas flow passage.