BetzDearborn AE1138

Summary

Product identification

• Product Name: BetzDearborn AE1138
• Description: Anionic, high charge density, high molecular weight, polymeric flocculant.
• Form: Liquid emulsion

Use and Applications

BetzDearborn AE1138 is designed for industrial water treatment programs as a coagulant aid or flocculant in clarification, thickening, and sludge dewatering processes. It is a cost-effective solution for solids separation in both influent and effluent water treatment.

Specific applications include:

• Reducing floc carryover when used with inorganic or cationic polymeric coagulants.
• Settling lime precipitate in raw water lime/soda softeners.
• Settling iron oxide suspensions from steel industry wastewaters.
• Settling precipitated hydrous metals in finishing water wastes.
• Reducing fines in thickener effluents from blast furnace, steel mill scale, and BOP scrubbers.
• Providing 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

• Preparation: Must be dissolved in water before use. Add the pre-mixed polymer slowly 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: Low speed (350 rpm) mechanical agitation is recommended until complete dissolution. Avoid high shear or excessive agitation once dissolved.
• Solution Stability: Diluted solutions should be used within 24 hours for maximum activity.
• Further Dilution: Further dilution to approximately 0.1% enhances performance in most applications. For dewatering, diluting to approximately 0.25% may be more practical.
• Feeding: Can be fed by pump, eductor, or gravity flow to a point of good mixing (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 can be stainless steel or most plastics (excluding LD polyethylene and polypropylene). Mild steel is acceptable only if corrosion product contamination is not critical. Viton and Tygon rubbers are acceptable for pump components and hose linings.

General Properties

Physical properties are detailed in the Material Safety Data Sheet (MSDS), available on request.

Packaging Information

Available as a liquid emulsion in a variety of containers. Contact SUEZ for more information.

Storage and Handling

• Storage Temperature: Store at moderate temperatures (7 to 38°C).
• Freezing: Protect from freezing.
• Bulk Containers: If stored outdoors, bulk containers may require insulation and heat tracing.
• Neat Polymer: Recirculate or mix neat polymer periodically to prevent separation. Recirculate one container volume per day.
• Shelf Life: Recommended shelf life is six months.
• Spills: Spilled polymer is very slippery. Small spills can be washed with water. Large spills should be contained, absorbed on inert material, and disposed of as solid waste before flushing with water.

Safety Precautions

Refer to the Material Safety Data Sheet (MSDS) for detailed safety information.

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