Vitec 7000 is a highly effective liquid antiscalant developed to prevent scaling on membranes. It has excellent properties to keep calcium sulphate in solution at a low dosing rate. Vitec 7000 can be used concentrated or diluted in a wide range of applications (e.g. surface water and well water).
The exact dosage amounts can be determined with the Avista Adviser calculation program.
Vitec 7000 achieves optimum performance when injected downstream of the multimedia filter and upstream of the candle filter. Sufficient mixing must be achieved.
Vitec 7000 should not be diluted more than 1:10. Thus, an optimal effect of the bacteriostatic agents contained in the Vitec 7000 is achieved. Bacterial growth in the container and storage tank is prevented by observing this procedure.
The typical dosing range is between 2 and 5 ppm. The optimum quantity can be determined with the Avista Advisor computer program. Both over- and underdosing can cause unnecessary fouling/scaling of the membrane system. The Avista customer service provides individual support for the compilation of dosage instructions.
Packaging and storage:
Vitec 7000 is available in 23 kg canister, 230 kg drum and 1100 kg IBC container. The product should be protected from frost during storage as the active ingredient would precipitate under extreme temperatures. Heating of the product and subsequent stirring brings the active ingredient back into solution.
|Appearance:||clear, slightly yellowish liquid|
|Density:||1.2 +/- 0.05 kg/litre at 20° C|
|pH:||5.0 bis 6.0|
Vitec 7000 Antiscalant offers a variety of application possibilities:
Prevents RO membrane scaling caused by the following substances:
Calcium carbonate CaCO3
CCPP > 900 / LSI > 2.5
Calcium sulphate CaSO4
- up to 6 x Ksp
Barium sulphate BaSO4
- up to 105 x Ksp
Si02 up to 120 ppm
Strontium sulphate (SrSO4)
- up to 20 x Ksp
Calcium fluoride (CaF)
- up to 1000 x Ksp
Dispersion properties reduce colloids and suspended solids fouling on the membrane surfaces
Compatible with polyelectrolytes
Complex formation with heavy metals, thus heavy metal fouling reduced
Compatible with all standard RO membranes.