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...http://www.google.es/patents/US8066844?utm_source=gb-gplus-sharePatente US8066844 - Compact wastewater concentrator using waste heat
