BetzDearborn AE1125

Summary

Product identification

BetzDearborn AE1125 is an anionic, medium charge density, high molecular weight, polymeric flocculant. It is a liquid emulsion product.

Description and use

AE1125 functions as a coagulant aid or flocculant in industrial water treatment programs for clarification, thickening, and sludge dewatering. It is designed to produce a fast-settling floc, reducing carryover when used with inorganic or cationic polymeric coagulants.

Typical applications include:

• Settling lime precipitate in raw water lime/soda softeners.
• Clarifying iron oxide suspensions from steel industry wastewaters.
• Settling precipitated hydrous metals in finishing water wastes.
• Reducing fines in thickener effluents from blast furnace and steel mill scale operations, and BOP scrubbers.
• Providing a clean effluent from automotive oily waste treatment processes.
• Increasing settling in chrome/cyanide destruction units and heavy metal separation systems.
• Reducing oil in refinery and other industrial wastewaters by improving air flotation unit and API separator efficiencies.
• Acting as a sludge dewatering aid, producing clean filtrate, high solids capture, and a drier cake.

Treatment and feeding requirements

Solution Preparation

• Makedown: BetzDearborn AE1125 must be dissolved in water before use. Prepare solutions by slowly adding the pre-mixed polymer to the vortex of an agitated tank. Do not add water to the neat polymer.
• Initial Concentration: Recommended initial makedown solution concentration is 0.5% (range 0.3 to 1%).
• Agitation: Use low speed (350 rpm) mechanical agitation until complete dissolution. Avoid high shear or excessive agitation after dissolution.
• Usage Window: Diluted solutions are recommended for use within 24 hours for maximum activity.
• Continuous Makedown: Continuous makedown systems are available for more reliable results.
• Further Dilution: Further dilution to approximately 0.1% enhances polymer performance in most applications. For dewatering applications, dilution to approximately 0.25% may be more practical.
• Feeding: Diluted product can be fed by pump, eductor, or gravity to a point of good mixing, but not violent agitation. High speed mixing decreases polymer activity.
• Transfer Pumps: Positive displacement gear or piston pumps are recommended for transferring the solution.

Materials Compatibility

Liquid-side components of tanks, pumps, and piping can be constructed of stainless steel or most plastics, excluding LD polyethylene and polypropylene. Mild steel is acceptable only if contamination by corrosion products is not critical. Viton and Tygon rubbers are acceptable for pump components and hose linings.

General properties

Physical properties are shown on the Material Safety Data Sheet (MSDS).

Packaging information

AE1125 is available in a variety of containers. Contact a SUEZ representative for more information.

Storage and handling

• Temperature: Store at moderate temperatures (7 to 38°C). Protect from freezing.
• Outdoor Storage: Bulk containers should be insulated and heat traced if necessary.
• Neat Polymer: Recirculate or mix periodically to avoid product separation. One container volume should be recirculated per day.
• Shelf Life: The recommended shelf life is six months.
• Spills: Spilled polymer is very slippery. Small spills can be washed down with water. Large spills should be contained, absorbed on inert material, disposed of as solid waste, and then flushed with water.

Safety precautions

A Material Safety Data Sheet (MSDS) with detailed information is available on request.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror