FIELD: chemistry.
SUBSTANCE: invention relates to bacterial stabilisation of aqueous preparations. The composition comprises at least one mineral and at least one bacterial strain, which are resistant and/or tolerant to aldehyde-releasing and/or aldehyde containing biocides and/or degrade these boicides. Step (a) adding to the aqueous preparation one or more aldehyde-releasing and/or aldehyde-containing biocides in such an amount, that the total amount of the aldehyde-releasing and/or aldehyde-containing biocides in the water preparation is from 250 ppm to 5000 ppm calculated relative to the weight of water in the preparation; step (b) adding to the aqueous preparation at least one water soluble lithium compound in such an amount that the total amount of solubilised lithium in the aqueous preparation is from 1000 to 3000 ppm calculated relative to the weight of water in the preparation. Steps (a) and (b) may be carried out simultaneously or separately in any order. The water soluble lithium compound is selected from a group comprising lithium halides, lithium sulphates, including lithium hydrosulphate, lithium citrate, lithium carbonate and mixes thereof.
EFFECT: invention realises its claims.
16 cl, 2 ex
