Electrodialysis desalination process and system for seawater

Details Electrodialysis desalination process and system for seawater Electrodialysis desalination process and system for seawater

1983-10-03

1985-09-03

Niebling, John F.

Chemistry: electrical and wave energy

Apparatus

Coating, forming or etching by sputtering

2041825, 126433, 126417, 126440, 126438, 203100, 203DIG1, B01D 1302

Patent

active

045390916

ABSTRACT:
An electrodialysis desalination process for seawater comprising the steps of collecting seawater and heating same by solar heat; subjecting seawater thus heated to electrodialysis; and separating same into two portions of a diluted solution and a concentrated brine, is provided, as well as the same system comprising a preheater utilizing solar heat for preheating seawater, an electrodialyser for separating seawater thus preheated by said preheater into said two portions, and means for supplying seawater to the preheater and then from the preheater to the electrodialyser. Various modifications of the above process and system are disclosed. According to the present inventions, electric power consumption in the electrodialysis is saved and solar heat is utilized effectively.

REFERENCES:
patent: 3075908 (1963-01-01), Kollsman
patent: 3390672 (1968-06-01), Snelling
patent: 4044948 (1977-08-01), Bottum et al.
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patent: 4141825 (1979-02-01), Conger
patent: 4158354 (1979-06-01), Carden
patent: 4160713 (1979-07-01), Matsuzaki et al.
patent: 4191172 (1980-03-01), Walch, Jr. et al.
patent: 4270520 (1981-06-01), Mahdjuri et al.
patent: 4291676 (1981-09-01), Asselman et al.

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