METHOD AND SYSTEM FOR CONCENTRATING SOLUTIONS USING EVAPORATION

摘要

The present invention relates to a system for concentrating a solution. The system comprises a humidification device comprising humidification media and a solution flow path for flow of a solution to be concentrated to the humidification device. The humidification media facilitates evaporation of liquid from the solution to be concentrated to gas as the solution to be concentrated passes through the humidification media thereby concentrating the solution. The system further comprises a cleaning circuit. The cleaning circuit comprises a cleaning solution container for cleaning solution and a closable outlet flow path fluidly connecting the cleaning solution container with the solution flow path, for controllable flow of cleaning solution from the cleaning solution container through at least part of the solution flow path. The invention also relates to a method of concentrating a solution. The method comprises flowing a solution to be concentrated along a flow path to a humidification device comprising humidification media, flowing a gas through the humidification media, flowing the solution to be concentrated through the humidification media, such that there is evaporation of liquid from the solution to the gas as the solution passes through the humidification media thereby concentrating the solution and producing a humidified gas. The method further includes periodically flushing cleaning solution through at least part of the flow path to de-scale the flow path.