摘要:
A thermal distillation system comprises heating means and cooling means arranged to heat and cool, respectively, treatable liquid in a liquid circuit having a first section between a heating means output and cooling means input, and a second section between an a cooling means output and heating means input, and further comprises distillation stages, each including an evaporator on the first section and a condenser on the second section in heat exchange relationship with liquid in the second section, a carrier gas circuit, on which the evaporator and condenser are arranged, and an output for outputting liquid extracted, wherein the stages are arranged such that their evaporators are disposed along the first section in a direction from the heating means to the cooling means and their condensers are disposed in corresponding order along the second section in a direction from the heating means to the cooling means.
摘要:
The invention relates to a method for separating fluorine-containing surfactants out of industrial water, comprising the method steps of: a) providing the industrial water having at least one fluorine-containing surfactant, wherein the fluorine-containing surfactant has a concentration below a foam forming concentration in the industrial water; b) generating gas bubbles in the industrial water while forming an aerosol on the surface of the industrial water; and c) separating the aerosol from the industrial water. To summarise, the method according to the invention creates a means, which can be easily carried out and is cost-effective, for separating fluorine-containing surfactants out of industrial water in a particularly effective manner. For example, such industrial water can be process water or waste water from a galvanic process or extinguishing water or ground water.
摘要:
Selective scaling in water treatment systems in which desalination is performed is generally described. According to certain embodiments, the location of the formation of solid scale within a water treatment system is controlled by adjusting one or more system parameters, such as the temperature and/or flow velocity of a saline stream within the water treatment system.
摘要:
The present invention relates to a purifying apparatus for polycarbonate polyols, especially for removal of cyclic alkylene carbonates, comprising an evaporation unit (1) provided with a heater (10) and having an inlet (6) disposed at the top end thereof and a bottoms vessel (11), and a stripping column (2) connected downstream of the evaporation unit (1) and having a top (21) and a bottom (23), wherein a feed (5) for the polycarbonate polyol to be purified opens into the inlet (6) to the evaporation unit (1) and a gas outlet line (12) and a connecting line which opens into the top (21) of the stripping column (2) and is equipped with a pump (18) depart from the evaporation unit (1), and wherein a gas inlet line (24) for an inert gas opens into the bottom (23) of the stripping column (2) and a product line (27) for the purified polycarbonate polyol departs from the bottom (23) of the stripping column (2) and a gas outlet line (25) departs from the top (21) of the stripping column (2). The invention additionally relates to a process for purifying polycarbonate polyols with such a purifying apparatus.
摘要:
The invention relates to a facility which comprises an evaporation device (1'), which comprises an evaporation chamber (10) intended for containing water (11) in liquid form and allowing only a portion of the water contained in the evaporation chamber (10) to be evaporated, and gas-supply means (12) for injecting a gas into the water (11) contained in the evaporation chamber (10), such as to form gas bubbles in said water, and a heat exchanger (3), which comprises cooling means (300, 310, 311 / 300, 301) and which allows at least the water vapour from the evaporation chamber (10) to be condensed. The facility comprises water-supply means (14), which make it possible to pump water in liquid form (L) in a natural environment, to send said water pumped in a natural environment through said cooling means (300, 310, 311 / 300, 301) or to bring said water into contact with said cooling means (300, 310, 311 / 300, 301), such as to allow the cooling of the water vapour from the evaporation chamber (10), and to supply the evaporation chamber (10) with said water after said water has been heated, having passed through or been brought into contact with said cooling means (300, 310, 311 / 300, 301). The evaporation chamber (10) comprises means (10c; 143) for discharging a portion of the water in liquid form (L) contained in the chamber which, in combination with the water-supply means (14), make it possible to renew the water inside the chamber such that the temperature of the water contained in the chamber (10) is kept at a temperature that is sufficient for maintaining the evaporation of a portion of the water contained in the evaporation chamber (10).
摘要:
The invention provides systems and methods for the pre-concentration of a target molecule from feed solution comprising a low concentration of the target molecule.
摘要:
A thermal distillation system comprises heating means and cooling means arranged to heat and cool, respectively, treatable liquid in a liquid circuit having a first section between a heating means output and cooling means input, and a second section between an a cooling means output and heating means input, and further comprises distillation stages, each including an evaporator on the first section and a condenser on the second section in heat exchange relationship with liquid in the second section, a carrier gas circuit, on which the evaporator and condenser are arranged, and an output for outputting liquid extracted, wherein the stages are arranged such that their evaporators are disposed along the first section in a direction from the heating means to the cooling means and their condensers are disposed in corresponding order along the second section in a direction from the heating means to the cooling means.
摘要:
Gegenstand der Erfindung ist ein Verdampfer (1), der mit einer Umwälzleitung (2) sowie mit per se bekannten Mitteln ausgestattet ist, um die zu verdampfende Flüssigkeit im Kreislauf zu führen. Dieser Verdampfer (1) zeichnet sich dadurch aus, dass eine Luftzuführung (6, 6') vorgesehen ist, die entweder im Verdampfer (1) unterhalb des Flüssigkeitsspiegels (5) im Verdampfer (1) in die zu verdampfende Flüssigkeit mündet und/oder in der Umwälzleitung (2) mündet. Gegenstand ist ferner ein Verfahren zum Eindampfen, Eindampfkristallisieren, Vakuumkühlkristallisieren oder Vakuumkühlen in einem Verdampfer, bei dem die zu verdampfende Flüssigkeit mit Hilfe von per se bekannten Mitteln durch eine Umwälzleitung im Kreislauf geführt wird. Dieses Verfahren ist dadurch gekennzeichnet, dass Luft unterhalb des Flüssigkeitsspiegels im Verdampfer in die Flüssigkeit und/oder in die in der Umwälzleitung im Kreislauf geführte Flüssigkeit eingeleitet wird. Dadurch wird erreicht, dass eine störende Kurzschlussströmung verhindert oder zumindest verringert werden kann.
摘要:
The present invention relates to a recovering system of a liquid medium, comprising a vaporizing portion, a condensing and separating portion, a gas feeding portion and a partial pressure regulating portion.