Principalele Aplicatii

  • dealcalinizarea
  • deionizare
  • Dedurizare
  • Dedurizare - Soluții organice apoase


  • SST shorter diffusion path benefits:
  • Highest regeneration efficiency
  • Very low leakage
  • Highly resistant to iron fouling
  • Lower rinse volumes
  • Lower operating costs
  • Excellent physical/chemical stability


  • sisteme de regenerare in co-curent
  • sisteme de regenerare in contracurent
  • tratamentul apei potabile

Aprobari de reglementare

  • Certificat de WQA conform standardului NSF ANSI 61

Ambalaje tipice

  • sac 1 ft³
  • 25 L sac
  • Butoi (Fibră) de 5 CF
  • 1 M³ supersac
  • supersac de 42 CF

* SST® este marca inregistrata a Purolite Co.

Caracteristici tipice fizice si chimice

Structura polimerica acid poliacrilic reticulat poros
Aspect Perle sferice
Grupari functionale acid carboxilic
Forma ionica forma H+
capacitate masica uscată (min.) 5.5 eq/kg uscat ( forma H+ )
reținerea umidității 36 - 44 % ( forma H+ )
Distribuția granulometrică 300 - 1600 µm
< 300 µm (max.) 1 %
Dilatare reversibilă, H+ → Ca2+ (max.) 20 %
Dilatare reversibilă, H+ → Ca2+ (în funcționare) 7 %
Dilatare reversibilă, H+ → Na+ (max.) 50 %
densitate specifică 1.17
Greutate de transport (aprox.) 710 - 760 g/L (44.4 - 47.5 lb/ft³)
Limita de temperatură 120 °C (248.0 °F)

Caracteristici hidraulice

Pressure Drop

The pressure drop across a bed of ion exchange resin depends on the particle size distribution, bed depth, and voids volume of the exchange material, as well as on the flow rate and viscosity of the influent solution. Factors affecting any of these parameters— such as the presence of particulate matter filtered out by the bed, abnormal compressibility of the resin, or the incomplete classification of the bed—will have an adverse effect, and result in an increased head loss. Depending on the quality of the influent water, the application and the design of the plant, service flow rates may vary from 10 to 40 BV/h.

Pressure Drop Across Resin Bed


During up-flow backwash, the resin bed should be expanded in volume between 50 and 70% for at least 10 to 15 minutes. This operation will free particulate matter, clear the bed of bubbles and voids, and reclassify the resin particles ensuring minimum resistance to flow. When first putting into service, approximately 30 minutes of expansion is usually sufficient to properly classify the bed. It is important to note that bed expansion increases with flow rate and decreases with influent fluid temperature. Caution must be taken to avoid loss of resin through the top of the vessel by over expansion of the bed.

Backwash Expansion of Resin Bed