Polyacrylamide is extensively utilized in the sludge dewatering
phase, a critical part of the wastewater treatment process. Its
application significantly enhances the efficiency of dewatering
operations through: Improved Flocculation: Polyacrylamide helps to aggregate the fine particles within the
sludge into larger flocs, a process necessary for effective
dewatering. This results in a faster separation of solids from
water. Increased Filtration Efficiency: When applied before the mechanical dewatering steps, such as belt
press filtration or centrifugation, polyacrylamide facilitates the
formation of a more robust floc structure. This robust structure
withstands the mechanical stresses better, allowing for more
effective water removal and leading to drier sludge cakes. Optimization of Chemical Dosage: The right type and amount of polyacrylamide can be optimized based
on the specific characteristics of the sludge, such as its organic
content and the nature of solids. This optimization ensures maximum
dewatering efficiency while minimizing chemical usage and
operational costs. Enhanced Water Quality: By improving the separation of solids and liquids, polyacrylamide
helps to produce a filtrate or centrate with lower suspended solids
content. This contributes to a higher quality of the water that is
either discharged or recycled back into the treatment process.
What is a sludge dewatering polymer?Sludge dewatering polymer is a chemical compound used in the
process of sludge dewatering, which is the removal of water from
sewage sludge. The polymer is added to the sludge to help separate the solid and
liquid components, making it easier to remove the water from the
sludge. The most commonly used sludge dewatering polymers are cationic
polymers, which have a positive charge and are attracted to
negatively charged sludge particles. When the polymer is added to the sludge, it forms a bond with the
particles, causing them to clump together and form larger
particles. This makes it easier to remove the water from the sludge, as the
larger particles settle more quickly and are more easily filtered. Other types of polymers used in sludge dewatering include anionic
and nonionic polymers. Anionic polymers have a negative charge and
are used to help break up the sludge particles, while nonionic
polymers have no charge and are used to improve the sludge's
dewatering properties. Overall, the use of sludge dewatering polymers is an important step
in the treatment of wastewater, as it helps to reduce the volume of
sludge and make it easier to dispose of or reuse. Description of Sludge dewatering Polymer- Blufloc Polyacrylamide (PAM)/ Polyelectrolyte is a water-soluble
polymer with Anionic, Cationic, and Nonionic types.
- The series of molecular weight is various, Anionic is from 5-22
million, Cationic is from 5-12 million and Nonionic is from 5-12
million, with a charge density ranging from 0-60%.
- It is frequently used to increase the viscosity of water
(developing a thicker solution) or to encourage the flocculation of
particles present in water.
- Due to the polar groups on the molecular chain consisting of a
specific quantity, it can through the adsorption of solid particles
suspended in water, bridge between particles or through the charge
and make the particle development of large flocs condensation. So,
it can accelerate the settlement of particles in suspension,
undoubtedly to accelerate the service to clarify, promote
filtering, and other results.
- Mainly utilized for various commercial wastewater flocculation
information, sedimentation, and sedimentation treatment, such as
iron and steel plant wastewater, electroplating wastewater,
wastewater metallurgy, coal washing wastewater treatment, and
sludge dewatering. Can likewise be used to clarify and consume
water purification treatment, and sugar & juice mills.
- Soluble in water, safe, non-toxic, hydrolytic stable, is not
sensitive to the change of pH value, and is anti-chlorine. Safe,
non-flammable, and non-explosive, it can be stored at space
temperature, and it can not be put in the sun. It is slightly
acidic, when skin contact, wash it immediately with plenty of
water.
ApplicationRaw Water Treatment Flocculation & Clarification Sludge Dewatering Industrial Waste Water Treatment Primary clarification Secondary & Tertiary treatment Sludge thickening & dewatering Dissolved air floatation Sewage Treatment Primary Treatment Sludge Thickening & Dewatering | Process Industries Sugar and juice industry: clarification Paper Making: retention agent, strengthening agent, resident agent,
dispersing agent, and water recovery Sugar Manufacturing: Mud settling Chlor-alkali: Brine Clarification Thermal Power: Clarification of scrubber water Mining & Metallurgy: Tailings thickening, water recovery Coal: Tailings thickening & water recovery Constructions: Soil stabilization, concrete making Petroleum and Gas Field Drilling fluids, EOR, Fluid loss control, lubrication, shale
Stabilization |
Specification| Specification | Anionic Polyacrylamide | Cationic Polyacrylamide | Nonionic Polyacrylamide | | Appearance | off-white granular powder | | Molecular Weight | 5-22 million | 5-12 million | 5-12 million | | Charge Density | 5%-50% | 5%-60% | 0%-5% | | Solid Content | 89%Min | | Recommended Working Concentration | 0.1%-0.5% | | Shelf Life | 2 years with proper storage |
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