Method and apparatus for pretreatment of hazardous waste material
First Claim
1. A process for the pre-treatment of liquid material comprising the steps of:
- exposure to ozone, exposure to strong and weak un-polarized magnetic fields, exposure to static discharge removal material, exposure to a promoter of hydroxyl radicals, and exposure to ultraviolet radiation.
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Accused Products
Abstract
The present invention provides a method for the pre-treatment of hazardous biological and chemical contaminants from a waste fluid stream prior to discharge to a waste water treatment facility such as a publicly owned water treatment works or a similar privately operated facility. The method includes breaking apart tissue samples with a macerator, contacting a waste fluid stream with ozone, preferably in a vibrational mixer, which thereby acts as a promoter of hydroxyl radicals, passing the mixture through strong and weak unpolarized magnetic fields, static discharge and neutralization units, and finally, exposing the mixture to ultraviolet radiation. If found necessary, a subsequent static discharge and neutralization unit may be employed.
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Citations
19 Claims
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1. A process for the pre-treatment of liquid material comprising the steps of:
- exposure to ozone, exposure to strong and weak un-polarized magnetic fields, exposure to static discharge removal material, exposure to a promoter of hydroxyl radicals, and exposure to ultraviolet radiation.
- View Dependent Claims (2, 3)
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4. A multi-stage, multi-phase apparatus for removal of solid, chemical and bacterial waste from a contaminated aqueous solution, comprising, in combination:
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a first stage, including means defining a reaction tank for initial ozone treatment of waste matter in a contaminated fluid; an injection port for injecting an aqueous slurry of contaminated solids into said tank; a nozzle means disposed in a lower portion of said tank for injecting ozone into said aqueous slurry in said tank; ozone generator means for supplying ozone to said tank; means to withdraw fluid from said tank into a fluid discharge line; means for exposing said fluid withdrawn from said tank to a strong, unpolarized linear magnetic field in the range of 2000 to 10000 Gauss; means to discharge and neutralize static in said waste material; means to expose said waste material to ultraviolet light; and
,means to inject further amounts of ozone into said waste material in a mixing apparatus, whereby contaminants in said waste material are neutralized or destroyed. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. In a multi-phase apparatus for removal of chemical and bacterial waste from a mixture of contaminated solids suspended in contaminated aqueous solution, the combination of:
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a tank comprising a holding and reaction vessel; means to place contaminated solids suspended in contaminated aqueous fluid into said tank; a fluid discharge means from said tank; a pump in said fluid discharge line for removing said fluid under pressure; a first hollow cylindrical magnetic field means for exposing waste material received from said pump to a strong, unpolarized linear magnetic field in the range of 2000 to 10000 Gauss; a second hollow cylindrical magnetic field means for exposing waste material received from said first magnetic field means for exposing waste material to a weak unpolarized linear magnetic field in the range of up to 2000 Gauss; a static discharge and neutralization unit located downstream of said second magnetic field means to remove static from said waste material; means for treating said waste material with ultraviolet light; means to inject and mix unreacted ozone from said tank into said waste material downstream of said ultraviolet treatment means to complete purification thereof. - View Dependent Claims (13, 14)
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15. A method of pretreating contaminated aqueous materials having hazardous chemical and biological contaminants therein prior to discharge to a waste water treatment facility comprising the steps of:
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breaking apart tissue and other solids in a macerator and combining said solids with water to form an aqueous waste material; contacting said waste material with ozone in an ozone treatment tank; passing said waste material through a strong unpolarized linear magnetic field; passing said mixture through a static discharge and neutralization unit; exposing said material to ultraviolet radiation in an ultraviolet radiation chamber; injecting ozone into said material in a Mazzei injector; subjecting said material and ozone to intense vibrational mixing in a vibrational mixer;
whereby said contaminants in said material are rendered sufficiently innocuous for discharge of the material into a waste water treatment facility. - View Dependent Claims (16, 17, 18, 19)
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Specification