JPS5531451A - Clarification treatment of waste water - Google Patents

Clarification treatment of waste water

Info

Publication number
JPS5531451A
JPS5531451A JP10510878A JP10510878A JPS5531451A JP S5531451 A JPS5531451 A JP S5531451A JP 10510878 A JP10510878 A JP 10510878A JP 10510878 A JP10510878 A JP 10510878A JP S5531451 A JPS5531451 A JP S5531451A
Authority
JP
Japan
Prior art keywords
regulated
waste water
pollutants
treated
treatment
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.)
Granted
Application number
JP10510878A
Other languages
Japanese (ja)
Other versions
JPS5643798B2 (en
Inventor
Mitsusaku Otsubo
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.)
Hitachi Ltd
Original Assignee
Hitachi Plant Engineering and Construction Co 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 Hitachi Plant Engineering and Construction Co Ltd filed Critical Hitachi Plant Engineering and Construction Co Ltd
Priority to JP10510878A priority Critical patent/JPS5531451A/en
Publication of JPS5531451A publication Critical patent/JPS5531451A/en
Publication of JPS5643798B2 publication Critical patent/JPS5643798B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

PURPOSE: To remove pollutants which have so far been nuisances to treat by the procedure in which waste water is regulated its pH, treated by an oxidant to decompose pollutants regultated its pH by slaked lime, treated by sedimentation to remove precipitates, regulated its pH again, and then brought into contact with resin.
CONSTITUTION: In the clarification treatment of waste water containing S- or C- compounds formed in the treatment of formed gas in the carbinization of coal, etc., waste water is regulated its pH to 3 to 7, preferably 4 to 6, by the addition of sulfuric acid or NaOH, treated with an oxidant, e.g., NaClO, ozone, etc., to decompose pollutants, regulated its pH to 9 to 12, preferably 10 to 11, by slaked lime, subjected to sedimentation treatment to remove precipitates, regulated its pH to 3 to 5, preferably 3.5 to 4, by the addition of sulfuric acid, and then brought into contact with a styrene-divinylbenzene copolymer-based porous synthetic resin with tertiay amines as active groups. Thus, pollutants can be removed with higher efficiency.
COPYRIGHT: (C)1980,JPO&Japio
JP10510878A 1978-08-29 1978-08-29 Clarification treatment of waste water Granted JPS5531451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10510878A JPS5531451A (en) 1978-08-29 1978-08-29 Clarification treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10510878A JPS5531451A (en) 1978-08-29 1978-08-29 Clarification treatment of waste water

Publications (2)

Publication Number Publication Date
JPS5531451A true JPS5531451A (en) 1980-03-05
JPS5643798B2 JPS5643798B2 (en) 1981-10-15

Family

ID=14398648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10510878A Granted JPS5531451A (en) 1978-08-29 1978-08-29 Clarification treatment of waste water

Country Status (1)

Country Link
JP (1) JPS5531451A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5079952A (en) * 1973-11-15 1975-06-28
JPS511353A (en) * 1974-06-24 1976-01-08 Kawasaki Steel Co
JPS51109152A (en) * 1975-03-22 1976-09-27 Kurita Water Ind Ltd
JPS51109149A (en) * 1975-03-19 1976-09-27 Hitachi Plant Eng & Constr Co Senenhaisuino shorihoho
JPS51124052A (en) * 1975-04-21 1976-10-29 Kurita Water Ind Ltd Treatment method of waste water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5079952A (en) * 1973-11-15 1975-06-28
JPS511353A (en) * 1974-06-24 1976-01-08 Kawasaki Steel Co
JPS51109149A (en) * 1975-03-19 1976-09-27 Hitachi Plant Eng & Constr Co Senenhaisuino shorihoho
JPS51109152A (en) * 1975-03-22 1976-09-27 Kurita Water Ind Ltd
JPS51124052A (en) * 1975-04-21 1976-10-29 Kurita Water Ind Ltd Treatment method of waste water

Also Published As

Publication number Publication date
JPS5643798B2 (en) 1981-10-15

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