Seawater effluent treatment downstream of seawater SO.sub.2 scrubber
US5484535A · kind A · utility
9Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 19, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | May 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/18
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for treating effluent seawater used in a process for desulfurizing flue gas includes aerating the effluent seawater in an aeration pond. The aerated effluent seawater is then channeled through a bed of crushed limestone for raising the pH of the seawater to at least 7.8. The seawater is then channeled back to the fresh seawater source, such as an ocean, without causing any harm to the environment. Fresh limestone is periodically added to the bed and the size of the bed is varied depending on the amount of effluent seawater to be treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.