SelRO Membranes - Recovering Value in Harsh Environments

SelRO membranes permit salts, acids, and caustic solutions to pass, while retaining low molecular weight organics and particles. These unique characteristics enable the SelRO elements to cost-effectively process a wide variety of process streams.
•   Recovers and purifies acids, bases, solvents, and plating solutions
•   Concentrates pharmaceuticals without phase change
•   Desalts dyes and optical brighteners
•   Saves on raw materials costs, storage, and disposal

What makes SelRO products stand out?
•   Stability beyond the pH scale for longevity in challenging environments - operates routinely in 17% sulfuric acid, 20% caustic, and 5% nitric solutions.
•   Outstanding thermal stability - up to 175° F (80° C) with nanofiltration and up to 210° F (90° C) for ultrafiltration
•   Extremely low molecular cut-off weight (200 daltons)
•   An easily maintained, high value solution

Choose SelRO elements as the cost effective solution for applications with very high or very low pH, or the need for silica or low molecular weight retention and pass-through of salts.
SelRO elements are available with nanofiltration (NF) or ultrafiltration (UF) membranes in the spiral configuration and for different pH ranges, temperatures, molecular weight cut off, and solvent stability. 

SelRO Membranes serve a Broad Array of Applications, including:
•   Food: Acid recovery, caustic recovery
•   Pharmaceutical: Antibiotic and peptide recovery inorganic solvents and solvent/water mixtures
•   Chemicals: Concentrating and desalting dyes and optical brighteners, recovery of acids and caustics
•   Electronics: Recovery of spent electroless solutions
•   Pulp and Paper: COD reduction
•   Textiles: Caustic recovery from mercerization and Sandoflex processes
•   Fertilizers: acid recovery
•   Mining: metals and acids recovery from dissolution processes

The KMS Advantage

Only SelRO elements offer such a wide range of pH and salt permeability with such low molecular weight retention. This opens the door to many applications previously thought too difficult for membrane technology.

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