ZETAG 4120 DK is a high-molecular-weight anionic polyacrylamide flocculant designed for efficient solid–liquid separation in mining, mineral processing, industrial wastewater treatment, and sludge handling systems.
Application of ZETAG 4120 DK Anionic Flocculant
ZETAG 4120 DK is a high-molecular-weight anionic polyacrylamide flocculant designed for efficient solid–liquid separation in mining, mineral processing, industrial wastewater treatment, and sludge handling systems. As an anionic flocculant, ZETAG 4120 DK works primarily through a polymer-bridging mechanism, where long polymer chains adsorb onto fine particles and link them together into large, rapidly settling flocs. This makes ZETAG 4120 DK particularly effective for treating mineral-based and inorganic suspensions with negatively charged or weakly charged particles.
One of the most important applications of ZETAG 4120 DK anionic flocculant is in mining and mineral processing operations. Ore crushing, grinding, flotation, and washing generate large volumes of slurry containing ultra-fine particles that are slow to settle naturally. These fine particles reduce thickener capacity and increase water losses if not properly flocculated.
ZETAG 4120 DK promotes rapid aggregation of mineral particles, producing large, dense flocs that settle quickly in thickeners and clarifiers. Its application increases underflow solids concentration and significantly improves overflow clarity. Clear overflow water can be recycled back into the plant as process water, reducing freshwater consumption and operating costs. At the same time, higher underflow density improves tailings transport efficiency and supports safer, more stable tailings disposal.
ZETAG 4120 DK is widely used in tailings thickening systems, including high-rate and high-density thickeners. Effective flocculation is critical for maintaining stable bed formation and high throughput in these units. ZETAG 4120 DK produces strong, shear-resistant flocs that withstand hydraulic forces within the thickener.
By enhancing settling kinetics, ZETAG 4120 DK enables faster sedimentation and improved overflow clarity. Improved water recovery reduces the demand for makeup water and supports sustainable mining practices. In addition, higher solids concentration in the thickened underflow reduces the volume of tailings slurry sent to disposal facilities, improving overall tailings management efficiency.
Another major application of ZETAG 4120 DK anionic flocculant is in industrial wastewater treatment. Industries such as metallurgy, steel production, power generation, chemical manufacturing, ceramics, stone processing, and construction materials generate wastewater containing suspended solids, metal hydroxides, and fine inorganic particles.
In these systems, ZETAG 4120 DK is commonly applied after inorganic coagulants such as ferric chloride, aluminum sulfate, polyaluminum chloride, or lime. While coagulants destabilize colloidal particles, ZETAG 4120 DK strengthens floc structure and accelerates sedimentation. This results in low-turbidity effluent that meets discharge or reuse standards. Improved clarification also reduces the load on downstream filtration, membrane, or biological treatment processes, enhancing overall plant stability.
ZETAG 4120 DK plays a key role in sludge thickening and mechanical dewatering. Sludges generated from mining operations and industrial wastewater treatment plants often contain fine mineral particles with high water retention.
The application of ZETAG 4120 DK improves sludge conditioning by forming large, porous flocs that release free water more readily. In gravity thickeners, it accelerates settling and increases underflow solids concentration. In belt filter presses, centrifuges, screw presses, and filter presses, ZETAG 4120 DK enhances cake dryness and improves filtrate clarity. Reduced sludge volume lowers transportation and disposal costs and improves the economics of sludge handling.
In municipal water treatment, ZETAG 4120 DK is used as a coagulant aid to enhance flocculation following primary coagulation with aluminum or iron salts. Raw water often contains fine clay, silt, and colloidal particles that are difficult to remove through coagulation alone.
The addition of ZETAG 4120 DK increases floc size and density, resulting in faster settling and improved clarifier performance. Improved turbidity removal enhances downstream filtration efficiency, extends filter run times, and reduces backwash frequency. Overall, the application of ZETAG 4120 DK supports stable operation and consistent treated water quality.
ZETAG 4120 DK is also applied in municipal wastewater treatment, primarily for sludge thickening and chemically assisted clarification. Its stable flocculation performance under fluctuating flow and solids loading conditions makes it suitable for large wastewater treatment plants requiring reliable and predictable operation.
By improving solids capture and reducing sludge volume, ZETAG 4120 DK helps wastewater treatment facilities optimize operating costs and comply with environmental discharge regulations.
In the pulp and paper industry, ZETAG 4120 DK is used for white water clarification, fiber and filler recovery, and paper mill sludge dewatering. Fine fibers, fillers, and pigments suspended in white water are efficiently flocculated, allowing valuable raw materials to be recovered and reused. Improved white water clarity enables higher levels of internal water recycling and reduced effluent discharge.
The application of ZETAG 4120 DK anionic flocculant provides both environmental and economic benefits. Enhanced solid–liquid separation improves water reuse, reduces sludge volume, and supports compliance with strict environmental regulations. Lower chemical consumption, reduced energy demand for dewatering, and improved process stability contribute to lower operating costs and more sustainable industrial operations.
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