An apparatus and method for purifying a liquid including: reaction chambers that utilizes KDF 85 or KDF 55 or other media in turbulence with the liquid, a first fine collective filtration unit, a first laser photolytic light chamber that utilizes a laser producing ultraviolet light in the...http://www.google.se/patents/US7255789?utm_source=gb-gplus-sharePatent US7255789 - Method and apparatus for liquid purification