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Summary the usages of ferrous sulfate in water treatment

Views:801     Author:VV     Publish Time: 2016-09-21      Origin:Rech Chemical Co. LTD

Ferrous sulfate, also known as green vitriol, copperas, iron vitriol, is widely used as flocculating agent, reducing agent, the precipitation agent in sewage treatment. Many domestic and foreign customers come to purchase ferrous sulfate from Rech chemical Co. Ltd. Ferrous sulfate is mainly used in water treatment.

1.Ferrous sulfate heptahydrate is the most common flocculant, which has the advantages as high sedimentation speed, big large sludge particles with small but dense volume, good discoloration effect (especially suitable in wastewater treatment of printing and dyeing or textile factory), non-toxic and beneficial to organisms that has subsequent biochemical treatment process of wastewater treatment system, low price process without changing the original technology.

2.Ferrous sulfate (ferrous sulfate heptahydrate) is a strong reducing agent, which can deoxidate hexavalent chromium in electroplating factory’s chromium waste water as trivalent chromium. Compared with expensive sodium sulfite, sodium bisulfite, so2, it does not produce toxic carcinogenic stimulus chloride (primarily hydrogen sulfide) and price is low.

3.Ferrous sulfate as a precipitating agent: formed sediments with sulfide, phosphate, thus remove sulfide, phosphate and so on. For example, dyeing factory treat sulfur wastewater with ferrous sulfate.

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