Method for cleaning drains for fatty waste water

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 3/34 (2006.01) B08B 9/04 (2006.01) C11D 3/02 (2006.01) C11D 3/26 (2006.01) C11D 3/32 (2006.01) C11D 7/10 (2006.01) C11D 7/32 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2380021

Disclosed is a method for cleaning drains for fatty waste water from households or industrial enterprises. Nitrogenous compounds are added to the fat-reducing and/or fat-emulsifying bacteria contained in the waste water. The inventive method is characterised in that 1. urea, a urea derivative, a salt of the urea and/or a salt of a urea derivative is/are added to a liquid drain cleaning agent and in that 2. urea, a urea derivative, a salt of a urea and/or a salt of a urea derivative and/or waterless magnesium sulphate is/are added to a solid drain cleaning agent. Growth factors in the form of supplines can be widely excluded. The amount of germ-inhibiting, organic substances is below 0.5 g/kg in relation to the drain cleaning agent in 1. and 2. The invention also relates to a cleaning agent that contains the aforementioned compounds.

Procédé de nettoyage de tuyaux d'évacuation pour des eaux usées grasses produites par les ménages ou les entreprises industrielles, qui consiste à ajouter des composés azotés aux bactéries décomposant et/ou émulsifiant les graisses, présentes dans les eaux usées. Ledit procédé est caractérisé en ce que (1) de l'urée, un dérivé d'urée, un sel d'urée et/ou un sel d'un dérivé d'urée est/sont ajouté(s) à un nettoyant liquide pour conduites d'évacuation et (2) de l'urée, un dérivé d'urée, un sel d'urée et/ou un sel d'un dérivé d'urée et/ou du sulfate de magnésium anhydre est/sont ajouté(s) à un nettoyant solide pour conduites d'évacuation. Selon la présente invention, des facteurs de croissance sous forme de supplines sont largement exclues et dans les étapes (1) et (2), la quantité de matière organique inhibant les germes est inférieure à 0,5 g/kg de nettoyant pour conduites d'évacuation. La présente invention concerne également un produit de nettoyage qui contient les composés précités.

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