Vitec 4000 Antiscalant/DispersantSilica specialist liquid antiscalant and dispersant for high silica feedwaters.VITEC 4000 is a liquid antiscalant and dispersant which offers excellent silica scale inhibition and allows increased system recoveries in high silica feedwaters. It prevents silica scale up to 2.8 times saturation without the addition of acid. It is also effective in preventing clay formation from aluminum silicates in the second stage of membrane systems, as well as minimizing calcium phosphate, and it works in water containing high concentrations of metals such as iron, aluminum and manganese.VITEC 4000 is applied in mining, well water, high recovery systems, wastewater, brine concentrators and regions with high volcanic silica. It is injected neat and continuously, far enough upstream of the membranes for full mixing. If dilution is required the solution strength must not fall below 10 percent, which protects the internal bacteriostat. Typical dosing is 2 to 5 mg/L in the supply water, with the optimum dose set by feedwater supersaturation and confirmed using the Avista Advisor Ci program or a Kurita representative.Available Options 5 Gallon Pail (45 lb) (Item RT0029-5) 55 Gallon Drum (500 lb) (Item RT0029-55) Key Features Prevents silica scale up to 2.8 times saturation with no acid addition Controls silica, aluminum silicate (clay), calcium phosphate, calcium carbonate and calcium fluoride Effective in water with high iron, aluminum and manganese pH 4.5 to 6.5 at 20 C; specific gravity 1.1 to 1.2 at 20 C Density 9.59 lbs per gallon; freeze point 21 F (-6.1 C) Appearance clear to amber liquid, complete water solubility Typical dose 2 to 5 mg/L in supply water NSF/ANSI 60 approved where RO permeate is intended for potable or drinking water use UK Drinking Water Inspectorate approved Dilution must not fall below 10 percent strength Injected continuously upstream of the RO feed pump or guard cartridge filter to ensure full mixing Dilution water must be RO permeate or deionized water; softened water only if neither is available Compatible with polyamide membranes from all major manufacturers Unopened shelf life 12 months when stored between 45 and 100 F (7 to 35 C) Dosage verified by phosphonate testing using the Hach UV digestion method Aluminum, brass, copper and mild steel are not recommended for use with this product Quality management system (ISO 9001) certified by DNV Ideal Applications High silica feedwaters and high recovery systems Mining and mine water treatment Well water with high iron, aluminum or manganese Wastewater and brine concentrators
