MAGNAFLOC-611 and ZETAG 4190 DK are high-performance anionic polyacrylamide flocculants widely utilized for efficient solid–liquid separation in water treatment, wastewater management, mineral processing, and industrial operations. These polymers are designed with high molecular weight and optimized anionic charge densities, providing excellent particle-bridging capabilities and rapid floc formation. Their ability to flocculate fine suspended solids, colloids, clays, and organic or mineral fines makes them particularly effective in applications where conventional coagulation is insufficient for clarifying water, thickening slurries, or improving sludge dewatering performance.

1. Municipal Water Treatment

In municipal water treatment plants, MAGNAFLOC-611 and ZETAG 4190 DK are widely used as flocculant aids following the addition of conventional inorganic coagulants such as alum, ferric chloride, or polyaluminum chloride. Raw water sources, including rivers, lakes, and reservoirs, often contain high concentrations of fine clays, silt, organic matter, and algae that are challenging to remove solely through coagulation.

The addition of these anionic polyacrylamides enhances particle aggregation by bridging destabilized colloids into large, dense flocs, which settle rapidly in sedimentation basins. This results in:

• Improved turbidity reduction and color removal

• Faster sedimentation rates, reducing retention time in settling tanks

• Reduced load on downstream filtration units such as sand filters or membranes

• Lower chemical consumption, reducing operational costs and sludge production

• Stable performance under variable raw-water conditions, including seasonal variations or storm-related spikes in turbidity

By forming robust flocs, MAGNAFLOC-611 and ZETAG 4190 DK enable municipal water facilities to achieve higher operational efficiency, maintain regulatory compliance, and produce consistently high-quality drinking water.

2. Industrial Wastewater Treatment

Industrial effluents often contain complex mixtures of suspended solids, colloids, emulsified oils, organic matter, and metal hydroxides. MAGNAFLOC-611 and ZETAG 4190 DK are used to improve clarification in industries such as:

• Textiles: removal of dyes, pigments, and fiber fines

• Pulp and paper: clarification of process water and removal of lignin or fillers

• Food and beverage: removal of starch, proteins, and organic particulates

• Chemical and petrochemical: treatment of oily water, chemical residues, and metallic sludge

• Metal finishing: precipitation and removal of metal hydroxides and fines

In these applications, the polymers enhance both sedimentation and dissolved air flotation (DAF) processes. By forming larger, denser flocs, they improve settling rates, increase supernatant clarity, and enhance sludge dewatering characteristics. This enables industries to meet strict discharge standards while reducing sludge volume and chemical usage.

3. Mining and Mineral Processing

Mining and mineral processing operations are major users of MAGNAFLOC-611 and ZETAG 4190 DK. Fine mineral slurries, including tailings streams, clay-rich process waters, and ore residues, present significant challenges for solid–liquid separation. The high molecular weight and anionic charge of these polymers facilitate:

a. Tailings Thickening

Tailings streams contain ultrafine particles that are slow to settle. MAGNAFLOC-611 and ZETAG 4190 DK produce large, compact flocs, improving thickener underflow density, reducing overflow turbidity, and enhancing water recovery for recycling into process circuits.

b. Process Water Clarification

Clean recycled water is critical for grinding, flotation, and leaching processes. These flocculants clarify process water streams, removing clay, silicate, and metal oxide particles, and ensuring water is suitable for reuse.

c. Coal and Mineral Slurry Dewatering

In coal washing, iron ore, alumina, or other mineral processing, the polymers enhance filtration and dewatering by forming flocs that release water efficiently in belt presses, centrifuges, and gravity thickeners.

d. Red-Mud Settling

In the alumina industry, they are effective in accelerating red-mud settling, producing clearer liquor, and increasing underflow solids concentration, which improves overall refinery efficiency.

4. Sludge Thickening and Dewatering

MAGNAFLOC-611 and ZETAG 4190 DK are extensively used in sludge dewatering systems in both municipal and industrial facilities. They are compatible with mechanical equipment including belt filter presses, screw presses, centrifuges, and rotary drum thickeners. By producing strong, drainable flocs, they improve cake solids, reduce polymer consumption, and lower sludge disposal volumes and costs.

5. Environmental and Construction Applications

In environmental management and construction, MAGNAFLOC-611 and ZETAG 4190 DK are used to treat water contaminated with fine silts, clays, and sediments. Applications include:

• Stormwater clarification

• Dredging water treatment

• Trench or tunnel dewatering

• Sediment basin clarification

By rapidly settling fine suspended solids, these polymers allow for safer discharge or water reuse while meeting regulatory standards.