Patent ID: 8246789
Filing Date: 2012-08-21
Classification: C02F,F26B

Abstract:
1. A treatment system for a watery material, the treatment system comprising: a dewatering tank in which liquefied matter of a material that is gaseous at a normal temperature and a normal pressure is contacted with the watery material, and the watery material is separated into a resultant watery material and a liquid phase that contains an aqueous component derived from the watery material and the liquefied matter of material that is gaseous at a normal temperature and a normal pressure; an evaporator that vaporizes the liquefied matter of material that is gaseous at a normal temperature and a normal pressure from the liquid phase; a separator that separates from the liquid phase a gas of the material thus vaporized from effluent water and that discards the effluent water; a condenser that condenses the gas into the liquefied matter that is gaseous at a normal temperature and a normal pressure; two or more external heat sources selected from the group consisting of atmosphere, sewage, warm effluent water, and ground water; an external heat temperature detector that detects temperatures of external heats of the external heat sources; and an external heat supply destination controlling unit that identifies an external heat source A and an external heat source B that radiates an external heat lower than an external heat from the external heat source A on the basis of the temperatures of the external heats detected by the external heat temperature detector, and controls the external heat from the external heat source A to be supplied to the evaporator and the external heat from the external heat source B to be supplied to the condenser.