Water treatment system

Liquid purification or separation – With heater or heat exchanger – With treating fluid addition

Reexamination Certificate

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Details

C210S198100, C210S275000, C210S290000

Reexamination Certificate

active

07029578

ABSTRACT:
A system suitable for the elimination ofCryptosporidiumoocysts from water includes a filter bed comprising four layers of inert particulate material such that, from the top layer (first layer) to the bottom layer (fourth layer), the coarseness of the particles decreases while the density of the particulate material increases.

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