JPS5765382A - Purification of waste water containing polyvinyl alcohol and/or polysaccharide - Google Patents

Purification of waste water containing polyvinyl alcohol and/or polysaccharide

Info

Publication number
JPS5765382A
JPS5765382A JP14106880A JP14106880A JPS5765382A JP S5765382 A JPS5765382 A JP S5765382A JP 14106880 A JP14106880 A JP 14106880A JP 14106880 A JP14106880 A JP 14106880A JP S5765382 A JPS5765382 A JP S5765382A
Authority
JP
Japan
Prior art keywords
agent
waste
water
waste water
polysaccharide
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
JP14106880A
Other languages
Japanese (ja)
Other versions
JPS5815192B2 (en
Inventor
Shoichiro Yokoyama
Yoshimasa Igari
Kazuo Saito
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.)
Kunimine Industries Co Ltd
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Kunimine Industries 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 Agency of Industrial Science and Technology, Kunimine Industries Co Ltd filed Critical Agency of Industrial Science and Technology
Priority to JP14106880A priority Critical patent/JPS5815192B2/en
Publication of JPS5765382A publication Critical patent/JPS5765382A/en
Publication of JPS5815192B2 publication Critical patent/JPS5815192B2/en
Expired legal-status Critical Current

Links

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  • Removal Of Specific Substances (AREA)

Abstract

PURPOSE: To enhance purification effect of waste water, when waste water containing polyvinyl alcohol or polysaccharide is purified, by adding CaO or Ca(OH)2 and NaAlO2 to the waste water under a specified pH condition.
CONSTITUTION: When waste water containing polyvinyl alcohol or polysaccharide such as starch, e.g. waste desizing water in a textile industy, waste surface-sizing water or waste used paper water in the paper industry or waste domestic cleaning water, is purified, an agent A, comprising powdery or slurry CaO or Ca(OH)2, and an agent B, comprising NaAlO2 in a powdery or water solution state, are added as purifiers to the waste water under the condition of pH 4W10. The addition ratio of the agent A to the agent B is such that the agent A is added at a rate of 0.5W 10 as Ca(OH)2 by 1 of the agent B. The addition amount of the agent A is 200ppm or more as Ca(OH)2, while that of the agent B is 200W2,000ppm as Al2O3. Owing to these additives, the polyvinyl alcohol or polysaccharide is coagulated, flocculated and separated from the waste water.
COPYRIGHT: (C)1982,JPO&Japio
JP14106880A 1980-10-08 1980-10-08 Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides Expired JPS5815192B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14106880A JPS5815192B2 (en) 1980-10-08 1980-10-08 Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14106880A JPS5815192B2 (en) 1980-10-08 1980-10-08 Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides

Publications (2)

Publication Number Publication Date
JPS5765382A true JPS5765382A (en) 1982-04-20
JPS5815192B2 JPS5815192B2 (en) 1983-03-24

Family

ID=15283485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14106880A Expired JPS5815192B2 (en) 1980-10-08 1980-10-08 Method for treating wastewater containing polyvinyl alcohol and/or polysaccharides

Country Status (1)

Country Link
JP (1) JPS5815192B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0788478A (en) * 1993-09-22 1995-04-04 Kuraray Co Ltd Wastewater treatment method
US6207059B1 (en) * 1998-03-23 2001-03-27 Achemco, Inc. Process for treating wastewater

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0788478A (en) * 1993-09-22 1995-04-04 Kuraray Co Ltd Wastewater treatment method
US6207059B1 (en) * 1998-03-23 2001-03-27 Achemco, Inc. Process for treating wastewater

Also Published As

Publication number Publication date
JPS5815192B2 (en) 1983-03-24

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