High Purity Water Treatment

Certain industries – pharmaceuticals, microelectronics - demand special water quality.

Hidrofilt has over 20 reference units in these industries; possesses the know-how and offers the followings:

  • validated water treatment systems by the application of the state-of-the-arts membrane processes - RO/MC/EDI - , equipments, instruments, controls
  • documentation according to Standards
  • validation / qualification in pharmaceutical industry (IQ, OQ)
  • field-survey
  • high quality after-sales services

Pharmaceutical industry

Pharmaceutical industries require different grade of treated water: Purified Water (PW) or Highly Purified Water (HPW). The specifications for quality are according to pharmacopeias: USP and Ph. Eur.

 

Purified water      
Parameter Unit USP Ph.Eur.(Bulk)
TOC ppm C 0,5 0,5
Conductivity μS/cm@ 20 oC - ≤ 4,3
Conductivity μS/cm@ 25 oC ≤ 1,3 -
Nitrate (NO3) ppm - ≤ 0,2
Hard metal ppm Pb - ≤ 0,1
Aerobacterium CFU/ml ≤ 100 ≤ 100
Highly purified water      
Parameter Unit USP Ph.Eur.(Bulk)
TOC ppm C there is no similar standard 0,5
Conductivity μS/cm@ 20 oC there is no similar standard ≤ 1,1
Nitrate (NO3) ppm there is no similar standard ≤ 0,2
Aerobacterium CFU/100 ml there is no similar standard ≤ 10
Bacterial endotoxins l.U./ml there is no similar standard ≤ 0,25

Microelectronics

This industry requires ion-free water with the highest theoretical purity; conductivity is as low as 0,055 µS/cm at 25 °C, and free of any organic impurities.  This is ultra pure quality water (UPW). Within, depended on application, can change the direction for microcontaminants.

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