OXIDATION PROCESS
First Claim
1. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution, maintaining said mixture of solution and ozone at a pressure above atmospheric for a time of at least 2 seconds.
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Abstract
Treatment of an aqueous solution to yield a product is more desirable for disposal by an advanced oxidation process. Ozone is mixed with the solution, and maintaining at an elevated pressure for a time. The process may include recirculation past injector that injects ozone into the solution. Influent may be sewage, septage, leachate, ballast, and so on. The process disinfects and/or denutrifies the effluent. It may include (a) back-to-back processing of batches (b) overlapping processing with a previously treated batch (c) off-gassing (d) repetitive high pressure and low pressure cycles (e) post processing steps, such as retention without addition of ozone for a period of time to permit flocculates longer to form (f) post process filtering to remove flocculates (g) simultaneous post-processing of one batch while another batch is being processed. The process may include the treatment of solutions containing pharmaceuticals.
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Citations
62 Claims
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1. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution, maintaining said mixture of solution and ozone at a pressure above atmospheric for a time of at least 2 seconds.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. The process of claim wherein the 14 influent has a phosphorus content prior to treatment.
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17. An apparatus for treating aqueous solutions for disposal comprising:
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a processing tank (reactor), the tank having a fluid outlet and a fluid inlet; a recirculation conduit, the recirculation conduit fluidly connected to the fluid inlet and the fluid outlet; the recirculation conduit including, a pump for recirculating fluid from the processing tank (reactor), through the recirculation conduit and back into the tank in a flow direction; at least one ozone injector for injecting ozone into fluid being circulated by the pump, wherein the ozone injector is downstream of the pump, a pressure device, the pressure device located within the recirculation conduit and downstream of the ozone injector, wherein the pressure device is adapted to maintain a pressure in the portion of the recirculation conduit between the pump and the pressure device at a pressure above atmospheric. - View Dependent Claims (18, 19, 20, 21, 26)
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- 22. The system of claim 22 wherein the processing is continued until the ORP is at least +650 mV.
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24. The system of claim 24 wherein the influent is domestic sewage.
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27. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining a first influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution, and, after having treated said first influent batch with ozone, combining at least a portion of said treated first batch with a second influent batch of aqueous solution for treatment.
- View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining a first influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution, and, after having treated said first batch, treating a second influent batch of aqueous solution within fifteen minutes thereafter.
- View Dependent Claims (44, 45, 47, 48, 49, 50)
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51. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining a first influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution, and, after having treated said first batch, treating a second influent batch of aqueous solution within fifteen minutes thereafter.
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52. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution;
reducing pressure on said batch of solution; and
off-gassing said solution prior to re-exposing said solution to injection of additional ozone thereto. - View Dependent Claims (53, 54, 55)
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution;
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56. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution while said solution is maintained at a pressure higher than ambient air pressure; and
, after treatment thereof, filtering said solution. - View Dependent Claims (57, 58, 59, 60)
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution while said solution is maintained at a pressure higher than ambient air pressure; and
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61. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution while said solution is maintained at a pressure higher than ambient air pressure; and
, after treatment thereof, retaining at least a portion of said batch for a period of time without further addition of ozone thereto; and
then, after said period of time, filtering said solution.
- obtaining an influent batch of aqueous solution for treatment, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution while said solution is maintained at a pressure higher than ambient air pressure; and
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62. A batch process for the treatment of an aqueous solution so that the treated product is more desirable for disposal, said process comprising:
- obtaining an influent batch of aqueous solution for treatment, said solution including pharmaceuticals, treating said batch of solution by an advanced oxidation process, said advanced oxidation process comprising causing ozone to be mixed with said solution while said solution is maintained at a pressure higher than ambient air pressure.
Specification