Standard Practice for Calculation and Adjustment of Sulfate Scaling Salts (CaSO4, SrSO4, and BaSO4) for Reverse Osmosis and Nanofiltration

Importancia y uso:

5.1 In the design and operation of reverse osmosis and nanofiltration installations, it is important to predict the CaSO₄, SrSO₄, and BaSO₄ scaling properties of the concentrate stream. Because of the increase in total dissolved solids and the increase in concentration of the scaling salts, the scaling properties of the concentrate stream will be quite different from those of the feed solution. This practice permits the calculation of the scaling potential for the concentrate stream from the feed water analyses and the reverse osmosis or nanofiltration operating parameters.

5.2 Scaling by CaSO₄, SrSO₄, and BaSO₄ will adversely affect the reverse osmosis or nanofiltration performance. This practice gives various procedures for the prevention of scaling.

Subcomité:

D19.08

Volúmen:

11.02

Número ICS:

71.120.99 (Other equipment for the chemical industry)

Palabras clave:

barium; calcium; membrane fouling; membrane scaling; nanofiltration; reverse osmosis; strontium; sulfate scaling;