GB1490405A - Method for clarifying aqueous waste liquids containing acid dyes - Google Patents

Method for clarifying aqueous waste liquids containing acid dyes

Info

Publication number
GB1490405A
GB1490405A GB1439075A GB1439075A GB1490405A GB 1490405 A GB1490405 A GB 1490405A GB 1439075 A GB1439075 A GB 1439075A GB 1439075 A GB1439075 A GB 1439075A GB 1490405 A GB1490405 A GB 1490405A
Authority
GB
United Kingdom
Prior art keywords
acid dyes
amount
resin
containing acid
liquids containing
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.)
Expired
Application number
GB1439075A
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.)
Nippon Carbide Industries Co Inc
Original Assignee
Nippon Carbide Industries Co Inc
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 Nippon Carbide Industries Co Inc filed Critical Nippon Carbide Industries Co Inc
Publication of GB1490405A publication Critical patent/GB1490405A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

1490405 Clarifying aqueous dye-containing wastes NIPPON CARBIDE KOGYO KK 8 April 1975 [8 April 1974] 14390/75 Heading ClC Aqueous wastes containing dissolved acid dyes are clarified by adding sequentially, in either order, a water-soluble dicyandiamideformaldehyde resin, in an optimum amount determined by finding first the pH value at which a given amount of resin causes maximum precipitation of the dye and second the amount of resin which causes the maximum precipitation of that pH, and at least 300 weight p.p.m. of aluminium sulphate, the amount of the additives being based on 100 weight p.p.m. of the dyes.
GB1439075A 1974-04-08 1975-04-08 Method for clarifying aqueous waste liquids containing acid dyes Expired GB1490405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3877574A JPS5443305B2 (en) 1974-04-08 1974-04-08

Publications (1)

Publication Number Publication Date
GB1490405A true GB1490405A (en) 1977-11-02

Family

ID=12534654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1439075A Expired GB1490405A (en) 1974-04-08 1975-04-08 Method for clarifying aqueous waste liquids containing acid dyes

Country Status (6)

Country Link
JP (1) JPS5443305B2 (en)
CA (1) CA1046667A (en)
DE (1) DE2515175C2 (en)
FR (1) FR2274563A1 (en)
GB (1) GB1490405A (en)
IT (1) IT1034943B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742764A1 (en) * 1987-12-17 1989-06-29 Sueddeutsche Kalkstickstoff FLOCKING AND / OR FIXING AGENTS FOR PAPER SIZING
DE4301364C2 (en) * 1992-01-27 2002-03-21 Clariant Finance Bvi Ltd Process for decolorizing disused aluminum dyeing and rinsing baths
DE4426236A1 (en) * 1994-07-23 1996-01-25 Heinz Neuschuetz Use of salt-forming, basic, nitrogenous, cationic polymer as thickener
JPH08131202A (en) * 1994-11-08 1996-05-28 Hikari Giken Kogyo Kk Footgear
CN110255753A (en) * 2019-05-16 2019-09-20 中国皮革制鞋研究院有限公司 The processing method of tannin extract waste water

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1517657A1 (en) * 1964-07-17 1969-07-31 Bayer Ag Process for treating waste water
GB1424702A (en) * 1972-04-27 1976-02-11 Kanebo Ltd Method of decolourizing waste coloured aqueous liquid
CH572449A5 (en) * 1972-06-23 1976-02-13 Ciba Geigy Ag

Also Published As

Publication number Publication date
IT1034943B (en) 1979-10-10
FR2274563A1 (en) 1976-01-09
JPS5443305B2 (en) 1979-12-19
DE2515175A1 (en) 1975-10-09
DE2515175C2 (en) 1984-02-23
FR2274563B1 (en) 1978-04-21
CA1046667A (en) 1979-01-16
JPS50132756A (en) 1975-10-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee