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JPS57159589A - Purification of waste water - Google Patents

Purification of waste water

Info

Publication number
JPS57159589A
JPS57159589A JP4498181A JP4498181A JPS57159589A JP S57159589 A JPS57159589 A JP S57159589A JP 4498181 A JP4498181 A JP 4498181A JP 4498181 A JP4498181 A JP 4498181A JP S57159589 A JPS57159589 A JP S57159589A
Authority
JP
Japan
Prior art keywords
waste water
stabilizer
heavy metal
ferric
compound
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
JP4498181A
Other languages
Japanese (ja)
Other versions
JPS6055197B2 (en
Inventor
Yukio Ito
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP56044981A priority Critical patent/JPS6055197B2/en
Publication of JPS57159589A publication Critical patent/JPS57159589A/en
Publication of JPS6055197B2 publication Critical patent/JPS6055197B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To remarkably shorten a treating process and a treating time, by adding an aluminum compound, a ferric compound and a heavy metal-stabilizer to waste water containing mercury and fluoride ion, and then adjusting the pH value of the waste water at a neutral level.
CONSTITUTION: An aluminum compound, e.g. aluminum sulfate or poly(aluminum chloride), a ferric compound, e.g. ferric chloride or ferric sulfate, and a heavy metal-stabilizer are added to waste water containing mercury and fluoride ion such as waste water from a garbage-incinerating plant or waste water from the process of making fluorescent lamps or Braun tubes. The waste water is then adjusted at a nearly-neutral pH level, and subjected to solid-liquid separation. As the heavy metal-stabilizer may be used S2- ion-contg. one such as sodium sulfide or sodium sulfhydride or a selective heavy metal-stabilizer avilable on the market. After addition of the heavy metal-stabilizer, the pH value of the waste water is preferably adjusted to about 6W8.
COPYRIGHT: (C)1982,JPO&Japio
JP56044981A 1981-03-27 1981-03-27 Wastewater treatment method Expired JPS6055197B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56044981A JPS6055197B2 (en) 1981-03-27 1981-03-27 Wastewater treatment method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56044981A JPS6055197B2 (en) 1981-03-27 1981-03-27 Wastewater treatment method

Publications (2)

Publication Number Publication Date
JPS57159589A true JPS57159589A (en) 1982-10-01
JPS6055197B2 JPS6055197B2 (en) 1985-12-04

Family

ID=12706635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56044981A Expired JPS6055197B2 (en) 1981-03-27 1981-03-27 Wastewater treatment method

Country Status (1)

Country Link
JP (1) JPS6055197B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10113677A (en) * 1996-10-09 1998-05-06 Kokichi Sakai Trapping agent for heavy metal and trapping method of heavy metal
JPH11236548A (en) * 1998-02-19 1999-08-31 Miyoshi Oil & Fat Co Ltd Metal scavenger composition and metal scavenging method
CN102838254A (en) * 2012-08-23 2012-12-26 广东汇清环保技术有限公司 Treatment process for acidic heavy metal wastewater

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381477A (en) * 1976-12-28 1978-07-18 Nippon Soda Co Ltd Removing method for heavy metal contained in solution used in treatment of exhaust gas

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381477A (en) * 1976-12-28 1978-07-18 Nippon Soda Co Ltd Removing method for heavy metal contained in solution used in treatment of exhaust gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10113677A (en) * 1996-10-09 1998-05-06 Kokichi Sakai Trapping agent for heavy metal and trapping method of heavy metal
JPH11236548A (en) * 1998-02-19 1999-08-31 Miyoshi Oil & Fat Co Ltd Metal scavenger composition and metal scavenging method
CN102838254A (en) * 2012-08-23 2012-12-26 广东汇清环保技术有限公司 Treatment process for acidic heavy metal wastewater

Also Published As

Publication number Publication date
JPS6055197B2 (en) 1985-12-04

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