Difference between revisions of "Perth Seawater Desalination Plant - Pretreatment"
From Desal Wiki
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| Cartridge Filter Pore Size = 5 micron | | Cartridge Filter Pore Size = 5 micron | ||
| Cartridge Filter Exchange Frequency = | | Cartridge Filter Exchange Frequency = | ||
| − | | Acidification Type = Sulphuric Acid | + | | Acidification Type = [[Sulphuric Acid]] |
| Acidification Desired pH = | | Acidification Desired pH = | ||
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Revision as of 02:52, 30 June 2014
| Pretreatment Configuration | |
|---|---|
| *SMBS
| |
| Cartridge Filters | |
| Pore Size: | 5 micron |
| Acidification | |
| Type: | Sulphuric Acid |
General Description
Feedwater is first dosed with ferric chloride following filtration in a system consisting of 24 horizontal pressure filters, each having a surface area of 52 m2 and a 1.15 m deep filter bed of dual media. To protect the reverse osmosis membranes against physical fouling by suspended solids, filtered seawater is then passed through an array of 5-micron cartridge filters. Filter backwash water is treated using a high rate Densadeg gravity thickener and the sludge is dewatered for land disposal.