Antiscalant For High Sulphate Water
In Sweden

Membrane Antiscalant For systems Using Feed water With High levels of Sulphate in Sweden.

Specification

.
Appearance
Clear to slight yellow liquid

pH
2.5 - 3.5

Specific gravity@250C
1.10 - 1.20

Molecular weight
3200-4300

Percentage of solids
44 - 48%

Viscosity Cps
200 - 300

Residual Monomer
10 ppm proportion

Product Benefits.
Highly Effective Calcium sulphate inhibitor Effective against iron and calcium carbonate
Compatible with all membrane types
Cost-Effective treatment for all brackish and water systems
Liquid product, easy to handle

Treatment & Dosage Requirements

In calculating the dose rate of Antiscalant For High Sulphate Water, the membrane manufacturer's operating limits and feed water quality should be considered in Sweden. All dose rate calculations should be made on the computer projection programme "e-WATER 5.0", which calculates the Ipb/Ksp ratio for calcium sulphate and other potential scaling salts. For Ipb/Ksp ratios <3, the preffered product of choice is Antiscalant For High Sulphate Water; for ratios 2.8 to 7.0, Antiscalant For High Sulphate Water is normally dosed at 5.0 to 25 mg/L in the concentrate, which is equivalent to 2.5 to 6 mg/L in the feed water, dependent on the system recovery. Antiscalant For High Sulphate Water can be diluted with product water and should be applied continuously by means of a suitable metering pump. Continuous feed is essential since calcium sulphate is difficult to remove once precipitation has occurred.

Principle Uses
Antiscalant For High Sulphate Water has been developed specially as a calcium sulphate inhibitor, for waters with CaSO4 Ipb/Ksp ratio of 2.8 to 7.0. It functions by a powerful threshold mechanism of calcium carbonate, and is highly tolerant to the presence of iron.