Patent ID: 6270664
Filing Date: 2001-08-07
Classification: B01F,C02F

Abstract:
Apparatus for treatment of water comprising:(a) a first compartment containing a filtration unit for receiving untreated water;(b) a second compartment containing polyphosphates;(c) a housing containing said first compartment and said second compartment;(d) a polyphosphate dosing unit comprising:(i) a partition between said first compartment and said second compartment;(ii) at least one inlet tube, affixed to said partition, allowing a small portion of water filtered in said first compartment to flow into said second compartment containing polyphosphates;(iii) at least one outlet tube, affixed to said partition, from which flow of polyphosphate-containing water is drawn out of said second compartment;wherein:A. said filtration unit in said first compartment produces filtered water, the major portion of said filtered water, other than said small portion of water flowing into said second compartment, being discharged without contacting polyphosphates;B. said flow of polyphosphate-containing water is withdrawn from said second compartment through said at least one outlet tube by the flow of said major portion of said filtered water creating a low pressure zone, such that the amount of polyphosphate distributed in the water is substantially proportional to the amount of said filtered water.