Colloidal solids removal and improved seawater desalting

The present invention relate to collecting colloidal solids in suspension for removal, for its drying and recovery, including in a scrubber as shown in my U.S. Pat. No. 6,180,012, where colloidal solids is made and is in suspension and in its clarifier located below, where some of the colloidal solids is washed down and is in suspension in desalinated seawater. Tubes with negative DC charge, attract build up of colloidal solids on their surfaces, and one loaded tube at the time is removed to a room or enclosure for drainage and drying with dry air. Thereafter the tube's DC charge is changed to positive, loosening the tube's grip and attraction to the colloidal solids which is blown through an outlet into a settling tank and down on a bottom screw conveyor that delivers the dry colloidal solids with little adhesion, to centrifuge for separation of the solids. From one of the solids is ammonia recycled for the process, which is important for saving cost, energy and production of C 2 . The present invention also relates to processes for further improving much desalination of potable seawater with less emission of CO 2 and sterilization, flocculation and removal of organics all important for drinkable water by the present invented processes.

DESCRIPTION OF SPECIFIC EMBODIMENTS Improved processing methods, in accordance with the present invention, includes beneficial collecting and drying of heavy colloidal solids that, because they are tiny molecule size, will stay in solution during continuous process in the scrubber, where tubes of iron with negative DC are attracting and collecting colloidal solids on their surfaces. One at the time of each loaded tube is removed to an attached room and for drainage and drying with circulating very dry air before he door to said scrubber is closed and the DC charge of the tube is changed to positive and very dry air is blowing the colloidal solids through an outlet, to a settling tank for separation of said two said colloidal solids. The process is mainly for collecting colloidal solids made and is in suspension in one or more scrubbers as shown in my U.S. Pat. No. 6,160,012 for desalination of seawater. Seawater has a relative uniform salt content of about three weight percent salt. The salt is dissolved in seawater as two ions Na&plus; and CL−. The Na&plus; has lost one of its electrons to the CL−, which ties them strongly together in a ionic bond. Each salt molecule in seawater is protected by one &plus;H 2 O molecule on one side and one −H 2 O molecule on the other side. When ammonia, NH 3 molecules are mixed in balanced number with salt molecules in seawater, each salt's aggressive CL atom seek and connect to a NH 3 molecule, but a water molecule is also connected there, and it holds on by transferring one of its H-atoms to the ammonia and connect its OH to the new NH 4 , forming the salt compound NaCLNH40H, which weakens CL−'s inner bond to Na&plus;. The seawater with the salt compound is then sprayed as a fine mist in a scrubber, where CO 2 in exhaust or pour is being added. The CO 2 molecules are seeking and connecting to the Na in the salt compounds further weakening the bond t CL and is braking the salt compounds molecule by molecule, apart into two colloidal solids: Sodium carbonate Na 2 CO 3 , with specific. gravity 2.58 and Ammonium chloride NU 4 CL, with specific gravity 1.53 These two colloidal solids, in spite of being very heavy, will not settle because of their very tiny single molecule size, and they remain suspended in the scrubber. Only the present invention as shown with tubes, negatively charged, can collect and remove the colloidal solids from solution the scrubber. Some of the colloidal solids will be washed down by the seawater spray from the scrubber to be suspended in desalinated seawater in the clarifier below The seawater remain cool in the process, its temperature will increase less then 2° C. by hot exhaust gas in the scrubber, but even in this low temperature up to 7 percent of the colloidal solids may dissolve during stay in the seawater and be lost. It is therefore very important to be able to quickly collect, remove and dry for the colloidal solid. For recovery as done in the present invention, where an overflow duct is attached to the clarifier with a connecting opening at the bottom of the clarifiers wall. The area of duct and opening must must be large that flow speed of said seawater is less than 15 cm per second In said overflow duct, said tubes are placed, with a hole top and bottom, and with a negative DC charge, they will collect colloidal solids on both inner and outer surfaces of their walls, and will not obstruct much the streaming water flow. The desalinated seawater overflows a weir at the top, for use in communities. The speed of seawater through the opening to the overflow duct, does not prevent Magnesium hydroxide, Mg(OH) 2 to precipitate as sludge from the clarifier. Seawater has about 0.3% Magnesium chloride, but the removal of said NaCL salt Sweeten and raise the ph of said seawater, its Magnesium hydroxide will therefore precipitate and be recovered. One tube at the time with negative charge and attached colloidal solids, is lifted up above said weir, for drainage and drying in an enclosure, which is in line with said overflow duct and attached to the scrubber. After drainage and drying with very dry air circulating, the bottom of enclosure is then closed and the DC charge is changed to positive, freeing said colloidal solids build up and blowing it with very dry air to remove adhesion, through an outlet for separation and recovery. All colloidal solids being blown by very dry air through an outlet and falls imt a large and tall settling thank onto a bottom screw conveyor connected to a centrifuge or other means for separation of the two dry colloidal solids. The sodium carbonate is a saleable product, and the ammonium chloride, NH 4 CL, is recovered by heating in glass lined equipment to 250° C., and forms ammonia gas NH 3 and hydrochloric acid, HCL also a saleable product. The ammonia is recycled for use in said seawater desalination process, saving money and energy. The NCL, a strong acid is important for the metal and metallurgical industries. My small scrubber—clarifier test unit for my patented desalination of seawater process has repeatedly shown that 95 percent of CO 2 in exhaust, can be removed in one test run. But it has also shown, that the colloidal solids is very difficult to collect and recover. The present invention as described is therefore very important as a practical method for collection and removal of colloidal solids both in said scrubbers, in said clarifiers, and in the triple unit, which shows how to produce drinkable water from seawater with my present invention also produce valuable products and remove 98% of the CO 2 gas in combustion exhaust from power plant and industrial plant and remove CO 2 gas from the oil and gas drilling operation. This invention has been disclosed with respect to certain preferred embodiments and it shall be understood that various modifications and variations thereof, obvious to those skilled in the art, will be included within the scope of the appended claims.