GB1319109A - Method for treating an aqueous medium with derivatives of chitin to remove an impurity - Google Patents

Method for treating an aqueous medium with derivatives of chitin to remove an impurity

Info

Publication number
GB1319109A
GB1319109A GB1319109DA GB1319109A GB 1319109 A GB1319109 A GB 1319109A GB 1319109D A GB1319109D A GB 1319109DA GB 1319109 A GB1319109 A GB 1319109A
Authority
GB
United Kingdom
Prior art keywords
impurity
aqueous medium
treating
derivative
remove
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
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.)
Peniston Q P
Original Assignee
Peniston Q P
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 Peniston Q P filed Critical Peniston Q P
Publication of GB1319109A publication Critical patent/GB1319109A/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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds

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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

1319109 Treating aqueous medium Q P PENISTON and E L JOHNSON 14 July 1970 34126/70 Heading C1C [Also in Divisions C3 and C6] A method of removing an impurity from an aqueous medium comprises the use of an at least partially deacetylated chitin derivative (e.g. chitosan) as a precipitant or coagulant. The derivative may also be at least partially deaminated. The impurity may be tannin, a phenol or an alkaline earth metal (e.g. Mg, Ca, Ba, Sr) salt. The derivative may be used in combination with lime, alum, or ferric salt. The method may be used in softening hard water or treating tannin and polyphenol - containing leaves extracts, gravel washing water or clay suspensions to remove dissolved or suspended matter therefrom.
GB1319109D 1970-07-14 1970-07-14 Method for treating an aqueous medium with derivatives of chitin to remove an impurity Expired GB1319109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3412670 1970-07-14

Publications (1)

Publication Number Publication Date
GB1319109A true GB1319109A (en) 1973-06-06

Family

ID=10361697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1319109D Expired GB1319109A (en) 1970-07-14 1970-07-14 Method for treating an aqueous medium with derivatives of chitin to remove an impurity

Country Status (1)

Country Link
GB (1) GB1319109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG139609A1 (en) * 2006-08-04 2008-02-29 Dev Center Biotechnology Bio-coagulants and water treatment methods utilizing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG139609A1 (en) * 2006-08-04 2008-02-29 Dev Center Biotechnology Bio-coagulants and water treatment methods utilizing the same

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Legal Events

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