High Rate Clarification of Cooling Water Using Magnetite Seeding and Separation
OwnerSteven L. Cortinventor
Life of this patent
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Abstract
A method and system for treating cooling water and removing scalants therefrom. The cooling water is directed into a chamber. Magnetic seed is mixed with the cooling water causing the scalants to attach to the magnetic seed to form magnetic particles. These magnetic particles are collected on a magnetic collector so as to remove the scalants from the cooling water. The method and system further removes the magnetic particles from the magnetic collector.
Claims20
A method of treating cooling water and removing scalants therefrom, comprising:
- a. directing the cooling water into a chamber;
- b. mixing magnetic seed with the water and causing the scalants to attach to the magnetic seed to form magnetic particles;
- c. collecting the magnetic particles on a magnetic collector so as to remove the scalants from the cooling water;
- and
- d. removing the magnetic particles from the magnetic collector.
A method of removing contaminants including heavy metals, suspended solids and scalants from water, comprising the steps of:
- a. in a first phase, precipitating heavy metals from the water by mixing one or more sulfides with the water, adding aluminum waste sludge to the water to remove sulfides and chloride, and maintaining the pH of the water at a level that maintains aluminum in solution;
- b. in a second phase treating the water with a lime softening process to precipitate scalants and corrosive compounds taken from the group including calcium, magnesium, silica, sulfates and chloride;
- c. in a third phase employing another lime softening process to remove additional contaminants;
- d. in one or more of the phases of the process mixing magnetic seed with the water such that the contaminants attach to the magnetic seed and form magnetic particles;
- e. collecting the magnetic particles with a magnetic collector so as to remove the scalants from the water;
- and
- f. removing the magnetic particles from the magnetic collector.
A method of removing scalants and suspended solids in water in a multistage process utilizing magnetic seed and magnetic separation, the method comprising the steps of:
- a. in a first chamber, mixing magnetic seed with the water and attracting scalants to the magnetic seed where the scalants attach to the magnetic seed and form magnetic particles;
- b. collecting the magnetic particles in the first chamber of a first magnetic collector;
- c. removing the magnetic particles from the first magnetic collector and separating the seed from the magnetic particles and recycling the magnetic seed to the first chamber;
- d. in a second chamber, mixing magnetic seed and a flocculant with the water and flocculating the mixture causing suspended solids to be attached to the magnetic seed and form magnetic floc;
- e. collecting the magnetic floc in the second chamber on a second magnetic collector;
- f. removing the magnetic floc from the second magnetic collector;
- and
- g. separating the magnetic seed from the magnetic floc and returning the magnetic seed to the second chamber.
A method of removing contaminants from cooling water comprising:
- directing the cooling water into a chamber, mixing magnetic seed with the cooling water and attracting the contaminants to the magnetic seed to form magnetic particles;
- collecting the magnetic particles on a magnetic collector so as to remove the contaminants from the cooling water;
- and removing the magnetic particles from the magnetic collector.
Dependencies are inferred from the claim text.