RO Anti-Scalant

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Name

WTPRO410

Description

Aqueous solution containing antiscalants and dispersants for use with high silica waters. Allows for concentrate silica levels above 230 mg/l at a pH of 7.5 to be controlled (dependent on temperature). RO 410 is also effective against scaling of all calcium salts and barium/strontium sulphate. It is also an effective antifoulant when iron, manganese or aluminium is present in the feed water.

On-line dosing minimises the formation of scale and foulants, and therefore prolongs the time period between cleaning. It is compatible with all membrane types, and low dose rate requirements ensure cost benefits.

DESCRIPTION OF PRODUCT USE

Max feed water dosage rate:  10 mg/L – as product.

Types of membrane:  Fresh-water, Brackish-water, Sea-water.

Types of water: Fresh-water, Brackish-water, Sea-water. Drinking Water

Points of application:   After all filtration media and before cartridge filter at the start of the membrane housing.

Method of dosage: Dosage would be proportional to flow rate by electronic dosage pump linked to the feed pump by simple relay.

Pumps should be set to give the highest practical frequency of impulses.

Method of control: Analysis of the brine solution and calculation of water of the concentration factor within the particular system.

Measurement of Concentration: It is usual to measure the level of RO 410 in the reject brine. Dividing this value by the concentration factor will give the level of RO 410 in the feedwater.

The active component RO 410 is hydrolysed to ortho-phosphate and measured colorimetrically as the reduced molybdenum blue complex.

Equipment: 25 ml Hach Digestion bottle, Hach UV Penlite & power source, Spectrophotometer, Potassium persulphate powder pillow, Hach PhosVer 3 pillow.

Method: Filter a sample of water containing RO 410 and transfer to a digestion bottle.

Add one potassium persulphate powder pillow and swirl to dissolve.

Insert UV probe and allow to hydrolyse for 30    minutes.

Add one PhosVer 3 pillow, swirl to dissolve and allow colour to develop for 20 minutes.

Measure colour with the spectrophotometer and convert the optical density obtained directly into mg/L phosphate.

1mg/L RO410 = 0.07 mg/l phosphate (as P)

Application

Packaging

Service

Field representatives will work closely with customer personnel to assure the effective application of the water treatment programme. Regular service calls can be provided by qualified personnel.

More Information

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  Avoid direct contact with skin and eyes to prevent mild irritation. In case of accidental contact, flush area with clean water.  Product should not be ingested.  Refer to Safety Data Sheet for full details.

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