JPS57127485A - Method for removal of phosphorus dissolved in water - Google Patents

Method for removal of phosphorus dissolved in water

Info

Publication number
JPS57127485A
JPS57127485A JP965881A JP965881A JPS57127485A JP S57127485 A JPS57127485 A JP S57127485A JP 965881 A JP965881 A JP 965881A JP 965881 A JP965881 A JP 965881A JP S57127485 A JPS57127485 A JP S57127485A
Authority
JP
Japan
Prior art keywords
sludge
tank
fore
enters
settled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP965881A
Other languages
Japanese (ja)
Inventor
Yoshiaki Takada
Tadanori Tsunoda
Tomoko Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suido Kiko Kaisha Ltd
Original Assignee
Suido Kiko Kaisha Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suido Kiko Kaisha Ltd filed Critical Suido Kiko Kaisha Ltd
Priority to JP965881A priority Critical patent/JPS57127485A/en
Publication of JPS57127485A publication Critical patent/JPS57127485A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

PURPOSE: To reduce the dosage of a flocculating agent and formed sludge in flocculation of the phosphorus dissolved in water by bringing settled sludge and raw water into contact in a fore-stage treatment then subjecting these to flocculation and settling treatment and returning the settled sludge to the fore stage.
CONSTITUTION: The raw water in which phosphorus components are dissolved enters a cntact tank 1 of a fore-stage treatment device 3, where it contacts with flocculated and settled sludge, whereby the adsorption of the phosphorus components by the sludge is accomplished. Thence, it enters a settling and separating tank 2, where the sludge is ettled and separated. The supernatant thereof enters an agitating tank 4 of a post-stage treatment device 7, where a flocculating agent such as aluminum sulfate is added and mixed at the dosage corresponding to the residual phosphorus components. Thence, it enters a flocculating tank 5 where flocculation takes place and further it is conducted into a settling and separating tank 6, where the sludge adsorbing the phosphorus components in settled and separated. The deposited and flocculated sludge is withdrawn through a sludge return pipe 8, and is returned into the contact tank 1 of the fore-stage treatment where it contacts with the with the raw water.
COPYRIGHT: (C)1982,JPO&Japio
JP965881A 1981-01-27 1981-01-27 Method for removal of phosphorus dissolved in water Pending JPS57127485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP965881A JPS57127485A (en) 1981-01-27 1981-01-27 Method for removal of phosphorus dissolved in water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP965881A JPS57127485A (en) 1981-01-27 1981-01-27 Method for removal of phosphorus dissolved in water

Publications (1)

Publication Number Publication Date
JPS57127485A true JPS57127485A (en) 1982-08-07

Family

ID=11726303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP965881A Pending JPS57127485A (en) 1981-01-27 1981-01-27 Method for removal of phosphorus dissolved in water

Country Status (1)

Country Link
JP (1) JPS57127485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103693728A (en) * 2014-01-08 2014-04-02 苏州道蒙恩电子科技有限公司 Pre-treatment technology of wastewater containing phosphorus and nickel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103693728A (en) * 2014-01-08 2014-04-02 苏州道蒙恩电子科技有限公司 Pre-treatment technology of wastewater containing phosphorus and nickel

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