FR2169835A1 - Caustic papermaking effluent - purified by acidifying and decolourising - Google Patents

Caustic papermaking effluent - purified by acidifying and decolourising

Info

Publication number
FR2169835A1
FR2169835A1 FR7245454A FR7245454A FR2169835A1 FR 2169835 A1 FR2169835 A1 FR 2169835A1 FR 7245454 A FR7245454 A FR 7245454A FR 7245454 A FR7245454 A FR 7245454A FR 2169835 A1 FR2169835 A1 FR 2169835A1
Authority
FR
France
Prior art keywords
effluent
organics
decolourising
acidifying
caustic
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
FR7245454A
Other languages
French (fr)
Other versions
FR2169835B1 (en
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.)
VIAN ORTUNO ANGEL ES
Original Assignee
VIAN ORTUNO ANGEL ES
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 VIAN ORTUNO ANGEL ES filed Critical VIAN ORTUNO ANGEL ES
Publication of FR2169835A1 publication Critical patent/FR2169835A1/en
Application granted granted Critical
Publication of FR2169835B1 publication Critical patent/FR2169835B1/fr
Granted 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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
    • C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Treating Waste Gases (AREA)

Abstract

Separated effluent from alkaline cellulose paste mfr. is treated by a strong acid (sulphuric) tolower pH to 6.5 (opt. at pH 1.5-2.5) to ppte. non-biodegradable organics, sepg. the liq. and removing remaining organics by combined adsorbent-decolourant action and air oxidn. and then neutralising. C black or active clay may be used as decolourant, added to the effluent and boiled. The method removes lignins and sucm-forming coloured organics at acceptable cost.
FR7245454A 1971-12-20 1972-12-20 Caustic papermaking effluent - purified by acidifying and decolourising Granted FR2169835A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES398161A ES398161A1 (en) 1971-12-20 1971-12-20 Procedure for conditioning the wastewater of the manufacture of cellulosic pastes by alkaline method. (Machine-translation by Google Translate, not legally binding)

Publications (2)

Publication Number Publication Date
FR2169835A1 true FR2169835A1 (en) 1973-09-14
FR2169835B1 FR2169835B1 (en) 1976-08-27

Family

ID=8459877

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7245454A Granted FR2169835A1 (en) 1971-12-20 1972-12-20 Caustic papermaking effluent - purified by acidifying and decolourising

Country Status (3)

Country Link
ES (1) ES398161A1 (en)
FR (1) FR2169835A1 (en)
IT (1) IT972645B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044058A1 (en) * 1980-07-11 1982-01-20 Süd-Chemie Ag Means and method for treating process and effluent water in paper making and related industries

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100415A (en) * 1954-03-03 1955-09-20 Applic Biochimiques Soc Et Process for the purification and use of waste water from the manufacture of paper pulp prepared by the soda process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100415A (en) * 1954-03-03 1955-09-20 Applic Biochimiques Soc Et Process for the purification and use of waste water from the manufacture of paper pulp prepared by the soda process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0044058A1 (en) * 1980-07-11 1982-01-20 Süd-Chemie Ag Means and method for treating process and effluent water in paper making and related industries

Also Published As

Publication number Publication date
FR2169835B1 (en) 1976-08-27
ES398161A1 (en) 1974-08-16
IT972645B (en) 1974-05-31

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Legal Events

Date Code Title Description
ST Notification of lapse