Record Display for the EPA National Library Catalog
RECORD NUMBER: 677 OF 1060Main Title | Precipitation of Phosphates from Water with Ferrous Salts. | |||||||||||
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Author | Svank, Karliss ; | |||||||||||
CORP Author | Ohio State Univ., Columbus. Water Resources Center. | |||||||||||
Year Published | 1971 | |||||||||||
Report Number | DI-14-01-0001-1855; OWRR-A-011-Ohio; 09555,; A-011-Ohio(2) | |||||||||||
Stock Number | PB-200 822 | |||||||||||
Additional Subjects | ( Water pollution ; Phosphates) ; ( Phosphates ; Precipitation(Chemistry)) ; ( Waste treatment ; Phosphates) ; Iron compounds ; Sulfates ; Activated sludge process ; Effluents ; Sedimentation ; Flotation ; Iron sulfate | |||||||||||
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Collation | 160p | |||||||||||
Abstract | The use of ferrous sulfate for precipitating phosphate from water was investigated. Different phosphate containing solutions were evaluated: (1) pure orthophosphate, (2) secondary effluent from a waste treatment plant, and (3) precipitation of phosphate in a simulated activated sludge process. It was found that ferrous sulfate should be very effective for removing phosphate in the activated sludge process. The low dissolved oxygen concentration will control the oxidation of ferrous iron to optimal rates, and the sludge will increase the settling rate of the phosphate precipitate. (Author) |