Method of monitoring the amount of biodegradable organics in liquid
Abstract
Abstract METHOD FOR CONTINUOUSLY MONITORING THE AMOUNT OF BIODEGRADABLE ORGANICS IN QUEOUS MATERIAL, COMPRISING ADDING CAUSTIC TO PRECIPITATE ANY MAGNESIUM, CALCIUM, COPPER OR IRON THAT MAY BE PRESENT, FILTERING OR OTHERWISE SEPARATING OUT THE PRECIPITATE, ADDING A PERMANGANATE SOLUTION (USUALLY POTASSIUM PERMANGANATE) TO THE FILTRATE (PRECIPITATE FREE MATERIAL), PASSING THE FILTRATE THROUGH THE SAMPLE CELL OF THE COLORIMETER, AND MEASURING THE COLOR CHANGE (IN MILLIVOLTS) ON A CONTINUOUS RECORDER AS A FUNCTION OF THE AMOUNT OF BIODEGRADABLE MATERIAL IN THE AQUEOUS SAMPLE BEING TESTED. THIS METHOD IS ESPECIALLY USEFUL IN DETERMINING THE CHEMICAL OXYGEN DEMAND IN WASTE WATER STREAMS, AND PERFORMS SUCH MEASUREMENT IN LESS THAN ONE HOUR AS COMPARED TO A MATTER OF 6-8 HOURS OR MORE FOR OTHER KNOWN METHODS.
Inventors
- 👤 Johnnie D Laman
- 👤 Glenn R Wessels
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |