Seawater effluent treatment downstream of seawater SO.sub.2 scru

Details Seawater effluent treatment downstream of seawater SO.sub.2 scru Seawater effluent treatment downstream of seawater SO.sub.2 scru

1994-05-19

1996-01-16

McCarthy, Neil

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210747, 210749, 210758, C02F 166, C02F 172

Patent

active

054845351

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.

REFERENCES:
patent: 775525 (1904-11-01), Doughty
patent: 1685300 (1928-09-01), Travers
patent: 1714828 (1929-05-01), Travers
patent: 1765424 (1930-06-01), Hageman et al.
patent: 2707171 (1955-04-01), Miller
patent: 3262865 (1966-07-01), Waters, Jr.
patent: 5298173 (1994-03-01), Burke

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