METHOD FOR RECYCLING WATER RESULTING FROM A METHOD FOR PRODUCING AN INSULATING MATTRESS OF MINERAL FIBRES

摘要

The invention relates to a method for controlling the corrosivity level of an aqueous solution recovered during a method for producing a mattress of mineral fibres, that comprises in particular fibre forming and binding said fibres with a binder including a polyacid typically of the acrylic type, said aqueous solution being recycled at least partially towards an area for preparing said resin and/or a scrubbing area of the production plant, wherein said method is characterised in that the pH of the solution in the recycling circuit is maintained between minimum and maximum values by feeding into said circuit a pH modifying agent such as a base, the amount fed of the flow of the pH modifying agent being directly adjusted based on the amount or flow of the acidic binder fed during the fibre forming process. The invention also relates to a device for implementing said method.