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| Number | Title | Issue Date |
| 8187429 | Wastewater treatment apparatus and method with stair-like heat treatment tanks A wastewater treatment apparatus and method with stair-like heat treatment tanks for performing a breakdown process are disclosed, in which the apparatus comprises: a mixing tank, for evenly mixing wastewater with reaction agents and thus forming a mixed solution; a... | 05/29/2012 |
| 8092656 | Method and apparatus for high efficiency evaporation operation A process for treatment of an aqueous stream to produce a low solute containing distillate stream and a high solute/solids containing blowdown stream utilizing a method to increase the efficiency of an evaporator while providing an essentially scale free environment... | 01/10/2012 |
| 8075741 | Water purification method, process and apparatus In the water purification process, apparatus, and method, contaminated water vapor is exposed to liquid solvent, which causes a transfer of contaminants from the contaminated water vapor to the liquid solvent. In an advantageous embodiment, this latter step is follo... | 12/13/2011 |
| 7955478 | Solar distillation device A solar distillation apparatus utilizing a substantially vertical reactor assembly is disclosed. The reactor includes a tubular outer shell, a base, a cap, and a central tension member. The annular space between the outer tube and the central tension member forms th... | 06/07/2011 |
| 7897019 | Tower for the distillation of seawater Systems and methods for desalting seawater by distillation are disclosed. Warm air is fed into the bottom of a natural draft tower. The warm air passes through seawater in an exchange means to increase the water content of the air. The moisture-laden air then rises ... | 03/01/2011 |
| 7862692 | Liquid evaporating method and device A method of evaporating liquid in a liquid evaporating system having heat exchangers, evaporators, and steam reheaters, includes: preheating condensed water in the heat exchangers; distilling in the evaporators the condensed water from the heat exchangers, wherein t... | 01/04/2011 |
| 7799178 | Distillation process An improved method for efficiently adding additional heat values into a distillation process to optimize the production of distillate from water. ... | 09/21/2010 |
| 7785448 | Method and apparatus for phase change enhancement A method of operating an evaporator is described. In evaporator feed water, a Taylor bubble is developed which has an outer surface including a thin film in contact with an inner surface of an outer wall of an evaporator tube. The Taylor bubble is heated as it rises... | 08/31/2010 |
| 7666281 | Method and device for treating water Purified water for special purposes is produced using a falling-film multieffect evaporator. From the feed water, each effect produces a steam phase and a water phase. The steam phase is used for heating in the subsequent evaporating step, whereby the steam phase co... | 02/23/2010 |
| 7608171 | Distillation system and process A distillation system for distilling contaminated water includes an evaporation chamber for receiving the contaminated water. The evaporation chamber includes (i) a vessel for absorbing the contaminated water; (ii) a plurality of heat conductive pipes extending thro... | 10/27/2009 |
| 7594980 | Device and method for distillation Device for distillation, for example extraction of fresh water from sea water, including a number of chambers (3) at least in one row, an inlet (10) for distillation fluid, an outlet (11) for the distillation residue, an outlet (5) for th... | 09/29/2009 |
| 7572352 | Method and plant for desalinating salt-containing water Salt-containing water is desalinated by first passing salt-containing water through a heat exchanger disposed in a basin containing solar-heated brine formed by several layers of water lying one above the other in the basin, each of the layers of water forming the b... | 08/11/2009 |
| 7504005 | Fluid distillation apparatus having improved efficiency A condensing chamber and a heating chamber are arranged in an enclosure. Liquid is fed into the condensing chamber where it is pre-heated. The pre-heated liquid flows to the heating chamber where it is boiled to produce vapor. Gas sparging in the condensing chamber ... | 03/17/2009 |
| 7501046 | Solar distillation loop evaporation sleeve An evaporation sleeve is placed within a solar distillation loop apparatus to increase the amount of water evaporated by the apparatus. The evaporation sleeve is rotationally attached within the above ground portion of the solar distillation loop so the sleeve lifts... | 03/10/2009 |
| 7494572 | Water still and method of operation thereof A mechanical water still (10) includes an impervious dome-like upper surface (12) and a membrane base (14) that is coupled (26) to the impervious dome-like structure (12) to form, when inflated, a chamber (20). The membrane ... | 02/24/2009 |
| 7494573 | Evaporator tube for a sea water desalination system The invention relates to an evaporator tube for a sea water desalination system, whereby drinking water or water for domestic or industrial purposes, respectively, is extracted from the sea in particular in areas having scarce fresh-water resources. The evaporator t... | 02/24/2009 |
| 7491298 | Plant for producing low deuterium water from sea water A plant and process for efficient production of low deuterium water from seawater. The plant includes a solar still with a black pan for collecting solar heat, that vaporizes portions of the seawater and a porous sloped membrane positioned over the black pan to coll... | 02/17/2009 |
| 7438129 | Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Feedwater is then acidified and steam stripped to remove alkalinity and dissolved non-condensable ga... | 10/21/2008 |
| 7435317 | Desalination of ocean water An improved distillation of water. involves distilling significant quantities of water at temperatures well below the boiling point. During distillation, a compound is taken from a liquid-phase to a gas-phase and then condensed to the liquid-phase again to get a pur... | 10/14/2008 |
| 7431806 | Low energy vacuum distillation method and apparatus A sub-atmospheric pressure desalinating still employs a closed top, open bottom pipe filled with source water to be distilled, such as seawater, having a height greater than the height of a column of seawater that can be supported by the pressure at the bottom of th... | 10/07/2008 |
| 7428926 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is then fed to an evaporator. Up to 95% or more of the pretreated produced... | 09/30/2008 |
| 7416643 | Solar water desalination/purification device A solar water desalination and purification device includes an outer liquid-tight containment and an inner liquid-tight containment disposed within the outer containment. The outer containment collects liquid that forms from condensing water vapor that evaporates wi... | 08/26/2008 |
| 7390380 | Processing of shipboard wastewater Incoming wastewater is preheated in a heat exchanger before delivery to a flash chamber through an orifice for flashing into water vapor rising into an upper section of the flash chamber which also has a bottom section into which liquid waste oil or other contaminan... | 06/24/2008 |
| 7381310 | Installation used to obtain salt-free sea water at a low temperature with continuous operation and enthalpy recovery A sea water desalination installation that employs an evaporation-condensation system which operates continuously at a low temperature and which enables the recovery of energy released. The installation includes a cylindrical evaporator having a large evaporation su... | 06/03/2008 |
| 7368040 | Apparatus for and method of heating fluid and distilling fluid A method and an apparatus for heating fluid with a gas heater and distilling fluid with the pilot light of the gas heater are disclosed. The apparatus for heating fluid and distilling fluid includes a main tank for containing fluid to be heated, a heater, adapted to... | 05/06/2008 |
| 7357849 | Method and system for separating solids from liquids A method and system for treating feedwater includes evaporating a portion of the feedwater in a first evaporation chamber so as to separate water vapor from the remaining feedwater. Droplets of the remaining feedwater are dispersed into a stream of hot air produced ... | 04/15/2008 |
| 7328584 | Fresh water extraction device A method and apparatus for collecting fresh water through atmospheric water collection and salt water desalination. The apparatus is used for a method of utilizing deep ocean water to extract fresh water from atmospheric water vapor while producing a byproduct of de... | 02/12/2008 |
| 7305850 | Distillation process using microchannel technology The disclosed invention relates to a process for distilling a fluid mixture in a microchannel distillation unit, the microchannel distillation unit comprising a plurality of microchannel distillation sections, the fluid mixture comprising a more volatile component a... | 12/11/2007 |
| 7287534 | Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated A process for cleaning apparatus in which (meth)acrylic acid-containing organic solvents have been treated and/or generated and contain fouling and/or polymer and residues of organic solvent, in which the apparatus contents are subjected to a steam distillation in t... | 10/30/2007 |
| 7282081 | Method and apparatus for high efficiency multi-stage packed tower aeration with PH adjustment and reutilization of outlet air Disclosed is an improve aeration system. The aeration system of the present invention more efficiently removes contaminates, such as hydrogen sulfide, from water. The increased efficiency is achieved by adjusting the pH level of the water in between sequential mass ... | 10/16/2007 |
| 7264695 | Systems and methods for solar distillation The present invention is directed to a solar powered distillation system and method. The solar powered still may have an impermeable nonporous membrane that may be extruded, molded, vacuum formed or sprayed-on. The membrane may be installed in a lightweight basin as... | 09/04/2007 |
| 7263858 | Method and apparatus for producing a purified liquid The present invention provides generally a method and apparatus for purifying a liquid. More particularly, purification of a bulk liquid is performed by introducing a liquid stream to a purification vessel, which comprises both a distillation chamber for forming a p... | 09/04/2007 |
| 7263859 | Process and apparatus for cooling a stream of compressed air Process and apparatus for cooling a compressed gas stream which utilizes one or more elongated vessels having a substantially vertical orientation. Each vessel has one compartment for indirect heat exchange between the compressed gas stream and a cooling stream and ... | 09/04/2007 |
| 7258765 | Vaporization chamber, and distillation system comprising same, providing improved temperature sensing of liquid contained in the chamber Vaporization chambers (distillation “pots”) are disclosed in which the liquid contained in such a pot is heated and circulated to establish thermal uniformity of the liquid and to route the circulated liquid past a thermally conductive member that contacts the l... | 08/21/2007 |
| 7258767 | Solar dew tube The invention pertains to a device for the condensation of water from an aqueous liquid by using a temperature gradient, which device includes: (a) a vapor chamber that can be brought in contact with a condensation compartment wher... | 08/21/2007 |
| 7249573 | Pressurized steam boilers and their control A method of controlling the operation of a pressurised steam boiler (50) heated by a burner (20), which includes the steps of a) monitoring the level of water in the boiler (50), b) monitoring the pressure of steam in the boiler (50), c) ... | 07/31/2007 |
| 7247953 | Solar energy conversion and transmission system A system consisting of one or more satellites carrying photovoltaic panels that capture solar energy and convert it to electricity for storage and transmission to earth by a microwave energy beam. The earth station absorbs the microwave energy beam in a pressurized ... | 07/24/2007 |
| 7238773 | Countercurrent stripping pipe Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe (201) composed of a plurality of pipe sections (201a-d), in which trays (202) are arranged, connections (205, ... | 07/03/2007 |
| 7232878 | Polymer treatment for separating volatile material A process for the separation of volatile material from particulate polymer which has been substantially freed from unreacted monomer in an earlier separation step, comprising (a) feeding the particulate polymer to a purge vessel, optionally causing it to move throug... | 06/19/2007 |
| 7225620 | Diffusion driven water purification apparatus and process An apparatus for purifying water, such as for desalinization, includes a source of a heated air stream, the heated air stream having a temperature above an ambient temperature. A diffusion tower having high surface area material therein receives a water stream inclu... | 06/05/2007 |
