Patent ID: 7481231

Claim:
Ware washing installation, containing at least one conveyor-type ware washer in the form of a flight-type ware washer or a rack-conveyor ware washer, the conveyor-type ware washer containing at least one wash zone with spray nozzles for spraying wash water onto the wash ware; a first rinse zone with spray nozzles for spraying rinse water onto the wash ware; a final rinse zone with spray nozzles for spraying final rinse water onto the wash ware; a conveyor device for conveying wash ware through the zones; characterized by additional spray nozzles which are arranged between the spray nozzles of the first rinse zone and the spray nozzles of the final rinse zone in the ware conveying direction, for spraying rinse water onto the wash ware; a rinse-water storage tank for receiving the final rinse water sprayed by the spray nozzles of the final rinse zone, for receiving the rinse water sprayed by the additional spray nozzles and for receiving the rinse water sprayed by the spray nozzles of the first rinse zone; a rinse-water forward path with at least one pump from the rinse-water storage tank to the spray nozzles of the first rinse zone, in order to supply rinse water from the rinse-water storage tank to the spray nozzles, so that a rinse-water recirculation circuit from the rinse-water storage tank to the spray nozzles of the first rinse zone and then back again into the rinse-water storage tank is formed; an additional rinse-water forward path with a microfiltration device and/or an ultrafiltration device for cleaning the rinse water and with at least one pump from the rinse-water storage tank to the additional spray nozzles, in order to supply cleaned water from the rinse-water storage tank to the additional spray nozzles, so that an additional rinse-water recirculation circuit from the rinse-water storage tank to the additional spray nozzles and then back again into the rinse-water storage tank is formed.