Dynamic disinfection method for a vehicle drinking water tank

Abstract

A method for disinfecting a vehicle drinking water tank is disclosed, wherein the method is designed for dynamic disinfection. By providing a vehicle drinking water tank with a spray diffuser, which is arranged inside the vehicle drinking water tank, the disinfecting liquid can be sprayed over substantially the entire inner surface of the tank. Partial filling of the drinking water tank with a disinfecting liquid starts the disinfection method. The dynamics of the disinfection method are achieved by spraying the disinfecting liquid in such a way that a moved film of disinfecting liquid is formed and wets an inner surface of the drinking water tank. Material transport at the inner wall of the tank is improved and mechanical shear forces act on the biofilm, which is to be removed and / or disinfected, in combination with the biochemical disinfection forces.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of International Application No. PCT / EP2012 / 058791, filed May 11, 2012, which claims priority from German Patent Application No. 10 2011 101 471.7 filed May 13, 2011 and claims the benefit of the filing date of United States Provisional Patent Application No. 61 / 485,776 filed May 13, 2011, the disclosures of which are hereby incorporated herein by reference.FIELD OF THE INVENTION[0002]The invention relates to the disinfection of a drinking water tank. In particular, the invention relates to a vehicle drinking water tank, an aircraft comprising a drinking water tank, and a dynamic disinfection method for a vehicle drinking water tank.TECHNICAL BACKGROUND[0003]In known methods, a static disinfection process is used for mobile water tanks. A disinfecting liquid is fed into the containers and lines to be disinfected so that the entire water system is filled completely with disinfecting liquid. The dis...

AI Technical Summary

Benefits of technology

The patent describes a way to disinfect a vehicle's drinking water tank using a spray diffuser to create a continuous wetting film on the inner surface of the tank. This eliminates the need to fully fill the tank with disinfecting liquid and allows for quicker and more cost-effective disinfection. The method can also be used on areas within the drinking water system that are not connected to the main tank. Overall, the invention facilitates dynamic disinfection of contaminated surfaces and provides a more efficient and environmentally friendly solution for ensuring safe drinking water.

Problems solved by technology

Due to different standards, demands are placed on the reaction time, which leads to long maintenance intervals of the vehicles which contain the drinking water tank.

These known disinfection methods can only be carried out if the vehicle is stopped for a sufficiently long period, which complicates fleet scheduling within the scope of fleet management.

Furthermore, long periods of downtime mean that high economical costs are incurred for the vehicle operator.

Since the disinfection methods already known require the drinking water system to be filled completely, these methods also have a considerable effect on the environment in addition to high costs for the disinfecting active ingredient.

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