Vitec™ Archives - Avista Membrane Treatment Solutions
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Vitec™

The Avista™ Vitec™ antiscalant line inhibits 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 of reverse osmosis (RO) elements. They are also highly effective at low dose rates. All formulations are NSF approved and UK Drinking Water Inspectorate (DWI) approved for specific products.
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All products are color coded for easy identification:
GLOBAL PRODUCTS
REGIONAL PRODUCTS
Antiscalant|Global|Vitec
Vitec 3000

Vitec 3000 is a powerful, wide spectrum, liquid antiscalant and dispersant that is highly effective at low dose rates and in a wide range of feedwaters such as brackish, wastewater, and seawater.

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Antiscalant|Global|Vitec
Vitec 4000

Vitec 4000 is a liquid antiscalant and dispersant that offers excellent silica scale inhibition and allows increased system recoveries in high silica feedwaters.

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Antiscalant|Global|Vitec
Vitec 7000

Vitec 7000 is a multicomponent liquid antiscalant and dispersant that provides a high level of sulfate inhibition and allows increased reverse osmosis (RO) system recoveries in challenging waters.

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Antiscalant|Regional|Vitec
Vitec 1400

Vitec 1400 is a proprietary liquid antiscalant designed to inhibit a wide range of scales including carbonate, sulfate, and silica in municipal feedwaters where metal (i.e., aluminum) concentrations in the feed are low but silica scale potential is elevated.

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Antiscalant|Regional|Vitec
Vitec 1500

Vitec 1500 is a liquid antiscalant designed to inhibit or reduce aluminum silicates, calcium phosphate, and silica scale.

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Antiscalant|Regional|Vitec
Vitec 3025

Vitec 3025 is a full spectrum, liquid antiscalant for high organic and silt waters that have a lower potential for carbonate, sulfate, or silica scaling.

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Antiscalant|Regional|Vitec
Vitec 5100

Vitec 5100 is a liquid antiscalant designed to inhibit or reduce aluminum silicates, calcium phosphate, and silica scale.

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Antiscalant|Regional|Vitec
Vitec 7400

Vitec 7400 is a liquid antiscalant with a unique blend of polymer and phosphonate components used for systems with both high silica and sulfate challenges.

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Antiscalant|Vitec 8200
Vitec 8200

Vitec™ 8200 liquid antiscalant is a phosphonate-free all-polymer blend for systems with brine disposal limitations.

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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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