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Polydadmac of Magnafloc LT-7994 LT-7995 LT-7997 can be replaced by Chinafloc--polydadmac
Magnafloc LT-7994 magnafloc LT-7995 magnafloc LT-7997 are three kinds of polydadmac with 40% and 35% solid content and 8000-13000,1000-3000,10000-20000 used for water treatment.
PolyDADMAC, or Poly(diallyldimethylammonium chloride), plays a crucial role in water treatment processes. This cationic polymer is known for its
high charge density and effectiveness in various stages of water purification. The functional significance of PolyDADMAC in water treatment spans
across several aspects, which can be explored in detail:
1. Coagulation and Flocculation
One of the primary functions of PolyDADMAC in water treatment is as a coagulant and flocculant.
Coagulation: In this process, PolyDADMAC neutralizes the negatively charged particles present in water. These particles, typically colloids, are
often responsible for turbidity and color in water. By neutralizing their charge, PolyDADMAC reduces the repulsive forces between these particles,
causing them to clump together into larger aggregates. This process is essential for removing suspended solids and other contaminants from water.
Flocculation: Following coagulation, PolyDADMAC aids in flocculation. The larger particle aggregates formed during coagulation are still too small
to settle out of the water by gravity alone. PolyDADMAC helps bridge these particles together, forming larger, more settleable flocs. This process
is crucial for the subsequent steps of sedimentation and filtration.
2. Enhanced Particle Removal
PolyDADMAC's ability to bind with particles in water significantly enhances the removal of various contaminants, including:
Organic Matter: It effectively removes dissolved organic compounds, which can contribute to taste, odor, and color issues in water.
Microorganisms: By aggregating bacteria and other microorganisms, PolyDADMAC assists in reducing microbial content in the water.
Metal Ions: It can also bind with certain metal ions, aiding in their removal from the water.
3. Sedimentation and Clarification
After the formation of flocs, PolyDADMAC facilitates their settling in sedimentation tanks. This process is crucial for:
Water Clarification: The settling of flocs results in clearer water, an essential aspect of water treatment, especially in potable water production.
Sludge Volume Reduction: Effective flocculation and sedimentation lead to a more compact sludge volume, which is easier and more cost-effective to handle and dispose of.
4. Filter Aid
In the filtration stage, PolyDADMAC:
Improves Filter Efficiency: It enhances the removal of fine particles that might otherwise pass through the filter.
Reduces Filter Clogging: By forming larger flocs, it prevents rapid clogging of filters, thereby extending the life and efficiency of the filtration system.
5. Disinfection Assistance
While PolyDADMAC does not have disinfectant properties, it assists in the disinfection process by:
Reducing Turbidity: Lower turbidity means fewer microorganisms are shielded from disinfectants, making the disinfection process more effective.
Removing Organics: Reducing organic matter in water minimizes the formation of disinfection by-products, which are potentially harmful.
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6. Adaptability to Different Water Qualities
PolyDADMAC is effective across a range of water qualities, including:
Varying pH Levels: It maintains its efficacy across a wide pH range, making it suitable for different water treatment scenarios.
High Turbidity Waters: It is particularly effective in treating high turbidity waters, where traditional treatment methods might be less effective.
7. Environmental and Health Aspects
In terms of environmental and health safety, PolyDADMAC offers several benefits:
Non-toxic Nature: It is considered safe for use in potable water treatment.
Biodegradable: It does not accumulate in the environment, as it is biodegradable to a certain extent.
Reduced Sludge Production: It often results in less sludge production compared to other coagulants, which is beneficial from an environmental
management perspective.
8. Cost-Effectiveness
PolyDADMAC is also favored for its economic benefits:
Efficiency: Its high charge density means that lower doses are often required compared to other coagulants.
Reduced Operation Costs: Improved process efficiency and reduced sludge handling costs contribute to overall cost savings in water treatment
plants.
9. Application in Various Treatment Processes
PolyDADMAC's versatility extends to various treatment processes, including:
Municipal Water Treatment: For potable water production.
Industrial Wastewater Treatment: In industries such as paper, textile, and mining, where water with high levels of suspended solids needs treatment.
Stormwater Treatment: To treat water with high levels of particulate matter.
10. Integration with Other Treatment Chemicals
PolyDADMAC can be effectively used in conjunction with other treatment chemicals, such as:
Combination with Other Coagulants: It can be used alongside inorganic coagulants (like alum) for enhanced treatment efficacy.
Use with Disinfectants: It complements the action of disinfectants by reducing the load of organics and turbidity.