US3867284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treatment with nitrogen dioxide
Assignee: Kappe Associates Inc
•
Filing: 1973-10-18
•
Granted: 1975-02-18
•
Expires: 1993-10-18
Abstract
Abstract Water is treated to reduce or eliminate the tendency of waste waters to pollute the waterways into which they are discharged, to purify drinking water supplies, to control taste and odor, and to disinfect it, by dissolving therein a small but effective amount of NO2 base on the weight of solids suspended in the water.
Inventors
- 👤 Stanley E Kappe
- 👤 David S Kappe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:40
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/025; C02F1/00; C02F1/72; C02F3/34; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
289 words
A METHOD OF TREATING DOMESTIC SEWAGE WASTE WATER, COMPRISING DISSOLVING AN EFFECTIVE AMOUNT OF NITROGEN DIOXIDE IN DOMESTIC SEWAGE WASTE WATER CONTAINING AS ORGANIC MATERIALS: BACTERIA, OTHER MICROORGANISMS, FATS, ALCOHOLS, ALDEHYDES, KETONES, CARBONHYDRATES WITH ALDEHYDE ENDS, ORGANIC ACIDS, AMMONIA, AMMONIUM COMPOUNDS, CELLULOSE, PRIMARY AMINES, MILLIGRAM TO 50 GRAMS OF NITROGEN DIOXIDE PER GRAM OF ORGANIC AMINO ACIDS AND UREA, SAID EFFECTIVE AMOUNT BEING FROM 1 MATERIAL, AND THEN DISCHARGING THE TREATED DOMESTIC SEWAGE WASTE WATER INTO A WATERWAY, SAID AMOUNT BEING EFFECTIVE TO SERVE AS SOURCE OF OXYGEN FOR MICROOGANISMS PRESENT IN THE WASTE WATER, AND AS IN OXIDIZING AGENT FOR AEROBIC-ANAEROBIC BACTERIAL PROCESSES IN THE WASTE WATER, AND AS A HYDROGEN ACCEPTOR FOR BIOCHEMICAL REACTIONS IN THE WASTE WATER, AND AS A CHEMICAL REAGENT THAT BACTERIA IN THE WASTE WATER CAN USE AS A SOURCE OF NUTRIENT NITROGEN, AND AS AN OXIDIZING AGENT THAT WILL OXIDIZE FATS, ALCOHOLS, ALDEHYDES, KETONES, CARBOHYDRATES WITH ALDEHYDE ENDS AND ORGANIC ACIDS PRESENT IN THE WASTE WATER TO MOLECULAR NITROGEN, AND AS A CHEMICAL REAGENT TO CONVERT CELLULOSE AND FATS PRESENT IN THE WASTE WATER TO MORE BIODEGRADABLE COMPOUNDS, AND AS A CHEMICAL REAGENT REACT WITH PRIMARY AMINES AND AMINO ACIDS WHICH CONTAIN AN AMINO GROUP PRESENT IN THE WASTE WATER TO YIELD NITROGEN AND ALCOHOL AS DEGRADATION PRODUCTS, AND AS A CHEMICAL REAGENT THAT WILL REACT WITH UREA PRESENT IN THE WASTE WATER TO YIELD CARBON DIOXIDE AND NITROGEN AS DEGRADATION PRODUCTS, AND AS A CHEMICAL REAGENT FOR LYSIS OR DISINTEGRATION OF THE CELL WALLS OF MICROORGANISMS PRESENT IN THE WASTE WATER SO THAT THE MATERIAL OF WHICH THE ORGANISMS ARE MADE CAN BE DESTROYED BY SERVING AS SOURCE OF FOOD AND ENERGY FOR OTHER LIVING ORGANISMS PRESENT IN THE WASTE WATER.
Claim 2
Independent Claim
289 words
A METHOD OF TREATING DOMESTIC SEWAGE WASTE WATER, COMPRISING DISSOLVING AN EFFECTIVE AMOUNT OF NITROGEN DIOXIDE IN DOMESTIC SEWAGE WASTE WATER CONTAINING AS ORGANIC MATERIALS: BACTERIA, OTHER MICROORGANISMS, FATS, ALCOHOLS, ALDEHYDES, KETONES, CARBONHYDRATES WITH ALDEHYDE ENDS, ORGANIC ACIDS, AMMONIA, AMMONIUM COMPOUNDS, CELLULOSE, PRIMARY AMINES, MILLIGRAM TO 50 GRAMS OF NITROGEN DIOXIDE PER GRAM OF ORGANIC AMINO ACIDS AND UREA, SAID EFFECTIVE AMOUNT BEING FROM 1 MATERIAL, AND THEN DISCHARGING THE TREATED DOMESTIC SEWAGE WASTE WATER INTO A WATERWAY, SAID AMOUNT BEING EFFECTIVE TO SERVE AS SOURCE OF OXYGEN FOR MICROOGANISMS PRESENT IN THE WASTE WATER, AND AS IN OXIDIZING AGENT FOR AEROBIC-ANAEROBIC BACTERIAL PROCESSES IN THE WASTE WATER, AND AS A HYDROGEN ACCEPTOR FOR BIOCHEMICAL REACTIONS IN THE WASTE WATER, AND AS A CHEMICAL REAGENT THAT BACTERIA IN THE WASTE WATER CAN USE AS A SOURCE OF NUTRIENT NITROGEN, AND AS AN OXIDIZING AGENT THAT WILL OXIDIZE FATS, ALCOHOLS, ALDEHYDES, KETONES, CARBOHYDRATES WITH ALDEHYDE ENDS AND ORGANIC ACIDS PRESENT IN THE WASTE WATER TO MOLECULAR NITROGEN, AND AS A CHEMICAL REAGENT TO CONVERT CELLULOSE AND FATS PRESENT IN THE WASTE WATER TO MORE BIODEGRADABLE COMPOUNDS, AND AS A CHEMICAL REAGENT REACT WITH PRIMARY AMINES AND AMINO ACIDS WHICH CONTAIN AN AMINO GROUP PRESENT IN THE WASTE WATER TO YIELD NITROGEN AND ALCOHOL AS DEGRADATION PRODUCTS, AND AS A CHEMICAL REAGENT THAT WILL REACT WITH UREA PRESENT IN THE WASTE WATER TO YIELD CARBON DIOXIDE AND NITROGEN AS DEGRADATION PRODUCTS, AND AS A CHEMICAL REAGENT FOR LYSIS OR DISINTEGRATION OF THE CELL WALLS OF MICROORGANISMS PRESENT IN THE WASTE WATER SO THAT THE MATERIAL OF WHICH THE ORGANISMS ARE MADE CAN BE DESTROYED BY SERVING AS SOURCE OF FOOD AND ENERGY FOR OTHER LIVING ORGANISMS PRESENT IN THE WASTE WATER.
Claim 3
Dependent Claim
22 words
A method as claimed in claim 1, said amount being 1 to 32 milligrams of nitrogen dioxide per milligram of organic material.
Claim 4
Dependent Claim
30 words
A method as claimed in claim 1, and introducing said nitrogen dioxide into said domestic sewage waste water in vapor phase beneath the surface of the domestic sewage waste water.
Claim 5
Dependent Claim
32 words
A method as claimed in claim 3, in which the point of introduction of said nitrogen dioxide is at least about 2 feet below the surface of the domestic sewage waste water.
References Cited (Backward Citations)
US3655395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |