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| Chemistry of MIEX® Ion Exchange |
Orica Watercare provides a range of anion and cation resins for use in the removal of target contaminants from water and wastewater streams.
Anion Exchange
MIEX® Resin is mixed with raw water containing the negatively charged target anions, which exchange for chloride ions on the resin’s active sites in a process referred to as “adsorption.”
When the resin is loaded, it is separated from the water and mixed with brine (NaCl) to exhange with chloride target anions off the resin. This is known as “regeneration.”
See the diagram below for an example of the anion exchange used to remove negatively charged humic and fulvic acids from water to reduce DOC.
Cation Exchange
MIEX® Resin is mixed with raw water containing the positively charged target cations, which exchange for sodium ions on the resin’s active sites in a process referred to as “adsorption.”
When the resin is loaded, it is separated from the water and mixed with brine (NaCl) to exhange sodium with target anions off the resin. This is known as “regeneration.”
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Ion Exchange for NOM Removal Prior to Membranes
White Paper highlighting the benefits of ion exchange prior to Micro & Ultrafiltration for improved membrane performance and water quality.
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MIEX® Treatment vs. GAC for TOC Removal
Technical note on the advantages of MIEX® Treatment over GAC for total organic carbon removal.
download pdf »
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