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GB1342804A - Method for making aqeuous material safe for disposal to an environment or system containing organisms - Google Patents

Method for making aqeuous material safe for disposal to an environment or system containing organisms

Info

Publication number
GB1342804A
GB1342804A GB1342804DA GB1342804A GB 1342804 A GB1342804 A GB 1342804A GB 1342804D A GB1342804D A GB 1342804DA GB 1342804 A GB1342804 A GB 1342804A
Authority
GB
United Kingdom
Prior art keywords
disposal
aqueous material
discharge
organisms
environment
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1342804A publication Critical patent/GB1342804A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment

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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

1342804 Treating aqueous material DOW CHEMICAL CO 21 Sept 1971 43987/71 Heading C1C [Also in Division A2] A method for protecting aqueous material from attack by microbial organisms during use in a manufacturing process and then making the material safe for disposal or discharge to an environment or system (e.g. trickling tower or activated sludge system) containing organisms, comprises adding to the aqueous material at a pH of 3À5-7 a bromocyanoacetamide of formula wherein X = Cl, Br or H and R = CH 3 or H, and before disposal or discharge adjusting the pH to 8-14 with a water-soluble base and holding the mixture for a time sufficient to render the material safe for disposal or discharge. The aqueous material may be a paper mill water ; it may contain cellulosic material, starch, proteins, lignins, sulphites and inorganic salts. The base may be ammonium or alkali metal hydroxide or carbonate. The bromocyanoacetamide may be used in admixture with polyethylene glycol, sulphonated alkylbenzenes, alkylatedaryl polyether alcohols, alkali metal salts of alkylaryl sulphonates, condensation products of mercaptane with ethylene oxide, sorbitan monolaurate polyoxyethylene derivatives, talc, clay, kieselguhr and chlorine. Organisms from which the aqueous material may be protected are Aerobacter aerogenes, Bacillus subtilis, Penicillium chyrosegenum, Aspergillus terreus and Candida pelliculosa.
GB1342804D 1971-09-21 1971-09-21 Method for making aqeuous material safe for disposal to an environment or system containing organisms Expired GB1342804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4398771 1971-09-21

Publications (1)

Publication Number Publication Date
GB1342804A true GB1342804A (en) 1974-01-03

Family

ID=10431257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1342804D Expired GB1342804A (en) 1971-09-21 1971-09-21 Method for making aqeuous material safe for disposal to an environment or system containing organisms

Country Status (1)

Country Link
GB (1) GB1342804A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281645A1 (en) * 1982-06-01 1988-09-14 The Dow Chemical Company Antimicrobial cation exchange composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0281645A1 (en) * 1982-06-01 1988-09-14 The Dow Chemical Company Antimicrobial cation exchange composition

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Legal Events

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