DE1284152B - Algicidal and bactericidal agents for treating water - Google Patents

Algicidal and bactericidal agents for treating water

Info

Publication number
DE1284152B
DE1284152B DEW33381A DEW0033381A DE1284152B DE 1284152 B DE1284152 B DE 1284152B DE W33381 A DEW33381 A DE W33381A DE W0033381 A DEW0033381 A DE W0033381A DE 1284152 B DE1284152 B DE 1284152B
Authority
DE
Germany
Prior art keywords
algicidal
treating water
bactericidal agents
monochloroacetaldehyde
parts
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.)
Pending
Application number
DEW33381A
Other languages
German (de)
Inventor
Milles Karl
Mittag
Dr Rudolf
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Priority to DEW33381A priority Critical patent/DE1284152B/en
Priority to GB4588263A priority patent/GB1062597A/en
Priority to CH1424263A priority patent/CH443778A/en
Priority to FR954368A priority patent/FR1377654A/en
Publication of DE1284152B publication Critical patent/DE1284152B/en
Pending 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00Compounds having —CHO groups
    • C07C47/20Unsaturated compounds having —CHO groups bound to acyclic carbon atoms
    • C07C47/24Unsaturated compounds having —CHO groups bound to acyclic carbon atoms containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Die Bekämpfung von Wasserschädlingen in Industrieabwässern, Becken, Kreislauf- und Betriebswässern mit Kupferverbindungen und Pentachlorphenolaten ist bekannt. Es wurde nun gefunden, daß für die Säuberung dieser und nichtindustrieller Gewasser von Schädlingen, insbesondere von Algen und Wasserbakterien, Monochloracetaldehyd allein oder im Gemisch mit Dichloracetaldehyd mit sehr gutem Erfolg verwendet werden kann. Die Wirkstoffe können vorteilhaft in Form ihrer Hydrate direkt oder mit einem geeigneten Träger in Form von flüssigen oder festen Zubereitungen eingesetzt werden, wobei gegebenenfalls noch Trichloracetaldehyd zugesetzt werden kann.The fight against water pests in industrial wastewater, basins, circulatory and industrial water with copper compounds and pentachlorophenolates is known. It has now been found that for the cleaning of these and non-industrial waters from pests, especially from algae and Water bacteria, monochloroacetaldehyde alone or in a mixture with dichloroacetaldehyde with very good Success can be used. The active ingredients can advantageously be used directly or in the form of their hydrates be used with a suitable carrier in the form of liquid or solid preparations, wherein optionally trichloroacetaldehyde can also be added.

Flüssige Zubereitungen werden durch Zusatz eines Lösungsmittels, wie niedermolekulare Alkohole, oder durch Zusatz eines inerten Lösungsmittels, wie aromatische Kohlenwasserstoffe, und eines Emulgators erhalten. Als Träger für staubförmige Zubereitungen sind Füllstoffe wie Talkum, Bentonit, Holzmehl und/ so oder Kaolin sowie Netzmittel geeignet.Liquid preparations are made by adding a solvent, such as low molecular weight alcohols, or by adding an inert solvent such as aromatic hydrocarbons and an emulsifier obtain. Carriers for powdered preparations are fillers such as talc, bentonite, wood flour and / or so or kaolin and wetting agents are suitable.

Die erfindungsgemäßen Wirkstoffe zeichnen sich gegenüber dem bekannten Natriumpentachlorphenolat durch eine wesentlich erhöhte Wirksamkeit aus. So wurden beispielsweise für Grünalgen bei Laborversuchen folgende Grenzkonzentrationen (Konzentration des Wirkstoffes in Milligramm je Liter Wasser, bei welcher gerade noch eine Abtötung der Grünalgen zu beobachten war) ermittelt:The active compounds according to the invention are distinguished from the known sodium pentachlorophenolate by a significantly increased effectiveness. For example, laboratory tests were carried out for green algae the following limit concentrations (concentration of the active ingredient in milligrams per liter of water, at which a killing of the green algae could just be observed):

Natriumpentachlorphenolat 50 mg/1Sodium pentachlorophenolate 50 mg / 1

Monochloracetaldehydhydrat... 0,6 mg/1
Gemisch aus 75 Teilen Monochloracetaldehyd und 25 Teilen Dichloracetaldehyd 0,6 mg/1
Monochloroacetaldehyde hydrate ... 0.6 mg / 1
Mixture of 75 parts of monochloroacetaldehyde and 25 parts of dichloroacetaldehyde 0.6 mg / 1

Ein Vergleich dieser experimentellen Daten macht deutlich, daß Monochloracetaldehyd die Wirkung des bekannten Natriumpentachlorphenolats um zwei Zehnerpotenzen übertrifft.A comparison of these experimental data makes it clear that monochloroacetaldehyde has the effect of the well-known sodium pentachlorophenolate by two powers of ten.

Die bakterizide Wirkung des erfindungsgemäßen Wirkstoffes wird dadurch belegt, daß bereits bei einem Gehalt von 12 mg/1 an Monochloracetaldehyd nach einer Inkubationszeit von 16 Stunden eine Hemmung des Glukoseabbaus von Pseudomonas fluoreszenz festzustellen war. Diese Konzentration wirkt also bereits hemmend auf die Bakterienkultur ein.Natriumpentachlorphenolat zeigt unter denselben Bedingungen dagegen erst bei einem Gehalt von 50 mg/1 eine Hemmwirkung.The bactericidal effect of the active ingredient according to the invention is demonstrated by the fact that already at a content of 12 mg / 1 of monochloroacetaldehyde after an incubation time of 16 hours Inhibition of glucose breakdown by Pseudomonas fluorescence was found. This concentration So already has an inhibiting effect on the bacterial culture. Sodium pentachlorophenolate shows among the same Conditions, on the other hand, only have an inhibitory effect at a content of 50 mg / 1.

Beispiel 1example 1

7,5 Teile Monochloracetaldehyd und 2,5 Teile Dichloracetaldehyd werden in 90 Teilen Methanol gelöst. 7.5 parts of monochloroacetaldehyde and 2.5 parts of dichloroacetaldehyde are dissolved in 90 parts of methanol.

Beispiel 2Example 2

10 Teile Monochloracetaldehydhydrat werden mit 10 Teilen eines Alkylarylpolyglycoläthers in 80 Teilen Benzol bis zur feinen Verteilung des Wirkstoffes kräftig geschüttelt.10 parts of monochloroacetaldehyde hydrate are mixed with 10 parts of an alkylaryl polyglycol ether in 80 parts Shake benzene vigorously until the active ingredient is finely dispersed.

Claims (1)

Patentanspruch:Claim: Algizides und bakterizides Mittel zur Behandlung von Wasser, enthaltend Monochloracetaldehyd allein oder im Gemisch mit Dichloracetaldehyd, gegebenenfalls in Form ihrer Hydrate.Algicidal and bactericidal agent for the treatment of water, containing monochloroacetaldehyde alone or in a mixture with dichloroacetaldehyde, optionally in the form of their hydrates.
DEW33381A 1962-11-21 1962-11-21 Algicidal and bactericidal agents for treating water Pending DE1284152B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEW33381A DE1284152B (en) 1962-11-21 1962-11-21 Algicidal and bactericidal agents for treating water
GB4588263A GB1062597A (en) 1962-11-21 1963-11-20 A method of combating micro-organisms in water
CH1424263A CH443778A (en) 1962-11-21 1963-11-20 Mixture for combating harmful microorganisms in water
FR954368A FR1377654A (en) 1962-11-21 1963-11-20 Aquatic Parasite Control Agents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW33381A DE1284152B (en) 1962-11-21 1962-11-21 Algicidal and bactericidal agents for treating water

Publications (1)

Publication Number Publication Date
DE1284152B true DE1284152B (en) 1968-11-28

Family

ID=7600313

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW33381A Pending DE1284152B (en) 1962-11-21 1962-11-21 Algicidal and bactericidal agents for treating water

Country Status (3)

Country Link
CH (1) CH443778A (en)
DE (1) DE1284152B (en)
GB (1) GB1062597A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138799B (en) * 1983-04-25 1988-02-10 Dearborn Chemicals Ltd Biocide
GB2138798A (en) * 1983-04-25 1984-10-31 Dearborn Chemicals Ltd Biocide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CH443778A (en) 1967-09-15
GB1062597A (en) 1967-03-22

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