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Antiscalants & Cleaners


Reverse Osmosis Antiscalants and Cleaners

Water treatment chemicals and expert process support for membrane separation systems including reverse osmosis (RO), nanofiltration (NF), ultrafiltration (UF), and microfiltration (MF).


Vitec® antiscalants and dispersants are multicomponent formulations that allow higher reverse osmosis (RO) system recovery rates and reduce cleaning frequency.

Our Vitec antiscalants inhibit scale while also dispersing colloidal particles. The inhibition and dispersant properties of Vitec products help extend system run times, reduce cleaning frequency and increase the productive life of reverse osmosis (RO) elements. The Vitec 8000 series antiscalants are part of our Green Chemicals line, specially formulated for sites with discharge restrictions.


Our AvistaClean® and RoClean formulations are proprietary, membrane compatible cleaners that provide efficient and cost-effective removal of all common foulants. AvistaClean and RoClean products come in a variety of pH ranges and include liquids or powders. Many are certified for use in potable water systems. They’re powerful against organic and inorganic foulants and compatible with all membranes. Several cleaners are classified as Green Chemicals to help Avista customers meet strict environmental discharge limits. The cleaners in our Green Chemicals line are the highest performing green cleaners in the industry.


RoCide® is a non-oxidizing, membrane compatible biocide to reduce biological fouling in membrane systems. RoCide biocides are broad spectrum formulations that combat contaminants such as bacteria, fungi and algae. They are compatible with all membranes and can be used with various Avista cleaners. Our biocides may be applied intermittently, via continuous injection or as a periodic addition to your clean-in-place (CIP) system.