Method for disposing of sludge from sewage and industrial wastes
Abstract
Abstract An economical process for instantly disposing of sludge from sewage and industrial wastes and manufacturing a useful product therefrom, comprises reducing suspended solids in the sludge and wastes to a concentration of less than one percent by dilution to form a slurry, oxidizing the slurry, rapidly filtering the oxidized slurry and drying it on a paper making machine which rolls the dried residue onto a roller. The method eliminates odors and produces a product useful as a synthetic top soil or soil conditioner or as a paperlike product, useful for packing carton liners. The process also eliminates the previously required capital investment in digester equipment, reduces operating and chemical costs and reduces sludge to a form in which it can be inexpensively shipped or incinerated.
Inventors
- 👤 Alexander S Goldberg
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |