Chemicals - Avista Membrane Treatment Solutions
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Avista Membrane Chemicals

Avista is a global brand of Kurita is focused on membrane treatment solutions for reverse osmosis (RO) systems, microfiltration/ultrafiltration (MF/UF), and multimedia filtration (MMF).

We offer a global line of Avista membrane treatment chemicals manufactured worldwide to cover a full spectrum of foulants and scales, including Vitec antiscalants, RoClean membrane cleaners, biocides, Kuriverter AC chlorine scavengers, and RoQuest coagulants.

Our regionally available line of Avista membrane chemicals includes AvistaClean MF cleaners, RoCide biocides, and AntiChlor chlorine scavengers, among others.

  • All Avista membrane chemicals are compatibility tested in accordance with key protocols accepted by the industry’s leading manufacturers.
  • The industry’s trusted membrane chemical dosing software, Avista AdvisorCi is used by trained technical engineers and Avista partners to provide accurate chemical projections.
  • We’ve expanded technical support and laboratory capabilities globally to include the Avista Black Box monitoring device, Avista Membrane Autopsy with Chromatic Elemental Imaging™, Avista NormRO data normalization, and Avista OSCAR off-site cleaning and restoration.‍

The Avista approach to diagnosing, solving, and validating membrane treatment solutions helps to determine the right membrane chemicals to achieve peak system performance and operator confidence.

Avista Membrane Chemicals Brochure
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United States and Canada - Download Avista Membrane Chemical Brochure
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Latin America/Caribbean - Download Avista Membrane Chemical Brochure
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Resources
Scale Inhibitors
Scaling within reverse osmosis (RO) systems is a serious matter. Not only does scaling drastically reduce system performance, but the abrasive scale deposits may also cause irreversible damage to the rejecting membrane surfaces.
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Cleaning Spiral Wound Membranes
All reverse osmosis (RO) systems foul over time. Symptoms of fouling include a decrease in normalized permeate flow, an increase in salt passage, or an increase in differential pressure.
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The Role of Coagulants in Reducing Colloidal Fouling
Micromedia filtration (MMF) is the most economical means of removing colloids from within reverse osmosis (RO) feedwater. However, to be effective, in-line coagulation is required upstream of the filters. With coagulation, colloid removal rates of 95% to 99% are typical.
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