View source for Perth Seawater Desalination Plant - Pretreatment

{{Scheme Infobox Pretreatment
  | image_name =
  | caption =
  | Hypochlorite = y
  | Chloramines =
  | Chlorine Dioxide =
  | Ozone =
  | SMBS = y
  | SDS =
  | Polymer =
  | Aluminium =
  | FerricFerrousIron = y
  | Carbon =
  | Sand Filtration = y
  | Multimedia Filters =
  | Membrane Filtration Type =
  | Membrane Pore Size =
  | Antiscalant Type =
  | Antiscalant Dose Rate =
  | Cartridge Filter Pore Size = [[Has Cartridge Filter Pore Size::5 µm]]
  | Cartridge Filter Exchange Frequency =
  | Acidification Type = [[Sulphuric Acid]]
  | Acidification Desired pH =
}}
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===General Description===
Feedwater is first dosed with ferric chloride following filtration in a system consisting of [[Has Horizontal pressure filters::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.

 [[Category:Hypochlorite]]
[[Category:SMBS]]
[[Category:Ferric & Ferrous Iron]]
[[Category:Sand Filtration]]
[[Category:Cartridge Filters]]
[[Category:Acidification]]