Method and plant for cleaning lightly radioactive waste incineration gases
US5771473A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Sep 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21F9/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Plant for cleaning gases (1) from an incinerator (3) of lightly radioactive aste. The plant includes a cooler-condenser (6, 100) for cooling gases (1) to a temperature lower than the dew point, a heater (300) for raising the temperature of the gases as they are discharged from the cooler-condenser (6, 100), a filter (200) for recovering solid particles downstream of the heater before the gases are discharged into the atmosphere, a unit (3) for treating condensates, and capable of precipitating radioactive heavy metals for recovery of a radioactive precipitate and an aqueous solution, an a unit (36) for crystallizing salts and concentrating them to dryness in an aqueous solution and recovering water to be recycled in the plant (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.