Pretreat Plus® Gypsum Concentrate Antiscalant

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Pretreat Plus® Gypsum Concentrate Antiscalant

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Envishield Company

Al Baha, Saudi Arabia

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Dosage
In the useful dosage range of 0.1–8.0 mg/L (neat), control of a wide range of inorganic scales at up to 100 x saturation values or higher of calcium sulfate is possible. By monitoring the concentrate stream and trend charts, optimal dosage can be achieved for the control of scales, including those from calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, iron hydroxide, aluminum hydroxide, and silica.

                                                            Appearance
                                                            Clear, Colorless to Pale Amber Liquid
                                                        
                                                            Product pH (neat)
                                                            7.0 ± 1.0
                                                        
                                                            Feed water pH
                                                            3.0 - 13.0
                                                        
                                                            Specific gravity
                                                            1.26 ± 0.07

Applications of Pretreat Plus® Gypsum Concentrate Antiscalant
Pretreat Plus® Gypsum Concentrate should be injected into the feed stream prior to the static mixer and cartridge filter. Effective pH range is 3–13. If frozen, may be thawed and mixed before use. Stability is excellent, but best used within 12 months. Complete and long-term stoppage of calcium sulfate crystallization makes it unique for stabilizing supersaturated brine in storage or passage through distant discharge pipes.

Features of Pretreat Plus® Gypsum Concentrate Antiscalant

Compatible with RO, NF, and UF membranes from all major manufacturers.
Specifically formulated to control high concentrations of calcium and other sulfates.
Controls sulfate scale over a large concentration range.
Strong dispersing capabilities
Liquid formulation is convenient and easy to use.
Can be used in tandem with Pretreat Plus® and ProTec™ RO products to boost control of fouling.