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the flocculants, designed for coal slime water treatment, were characterized using the ftir, xrd and sem methods. it has been shown that water turbidity was reduced by ~97% and ~94%, while cod removal was ~78 and ~74% in the presence of fe 3 o 4 -chitosan-cellulose and fe 3 o 4 -chitosan-biochar, respectively.

biopolymer-based flocculants a review of recent technologies,the treatment efficiency was better than polyacrylamide and cationic polyacrylamide (wang et al. 2016a). in another study, the water treatment dmdaac was used in the dewatering of anaerobically digested sludge. within the optimal dosage, the cmc was 81.7%, srf was 2.64 × 10 8 m/kg, and cst was 1.31 s·l·g −1 (zhang et al. 2019). in the ph range

polymer based flocculants review of water purification

when employing each polymer specifically, al dawery [110] demonstrated that combining a blend of polycarbonate and polyacrylic acid for flocculation results in improved liquid clarity. the combination of flocculants could raise the sludge volume index by 70%, compared to 40% in the case of polycarbonate alone.

spotlight on the life cycle of acrylamide-based polymers,for sludge treatments, consumption of a cationic polyacrylamide of 5.4 g·kg −1 of total solids is found to be the best economical solution . several studies were made, following life cycle analyses, to evaluate energy consumption of wastewater treatment (e.g., tillman et al. [ 90 ], hospido et al. [ 91 ] and wenzel et al. [ 92 ]).

optimizing the flocculation effect of cationic polyacrylamide

cationic polyacrylamide (cpam) is a commonly used flocculant for water treatment. factors that affect the flocculation effect and can be controlled manually include the type and dosage of cpam, wastewater ph, stirring time and settling time, and their reasonable setting is critical to the flocculation effect of cpam. in this paper, the optimal flocculation conditions of a novel cpam were

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water soluble polymer flocculants synthesis

polymer adsorption can occur through hydrogen bonding (polyacrylamide on silica silanol groups), electrostatic interaction (cationic polymers on negatively charged sludge), hydrophobic interaction (poly(vinyl alcohol) on silver iodide), and ion bridging (anionic polyacrylamide on negatively charged clays with the help of divalent calcium ion). 7

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application of flocculants in wastewater treatment

cationic polyacrylamide (magnafloc lt 7991), cationic organic polyelectrolytes (magnafloc lt 7992 and 7995), cationic polyacrylamide (hyperfloc ce 854 and ce 1950), copolymer of quaternary acrylate salt and acrylamide (magnafloc 22s) aquaculture wastewater, 6.97–7.78: tss: 99% removal: ebeling et al. (2005) rp: 92–95% removal

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synthesis of water soluble ionic liquid copolymers polyacrylamide

evaluations of polyacrylamide water-based drilling fluids for horizontal drilling in the shaly wolfcamp formation. spe j. 28 , 1–16 (2023). article google scholar

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polyaluminium chloride white powder anionic cationic,polyaluminium chloride is a chemical product. it is divided into industrial grade and food grade. industrial grade pac is brown or yellow granule or powder. food grade pac is light yellow or white powder. the basicity of the polyaluminium chloride is between 40 and 90. our polyaluminium chloride is usually used for all kinds of waste water

preparation, performances, and mechanisms of microbial

inorganic flocculants can be divided into two systems of iron and aluminum, which have a good treatment effect on suspended solids and colloidal particles; organic polymer flocculants are mainly polyacrylamide and their derivatives, which have good treatment effects on suspended solids and coarse particles.

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  • What is anionic polyelectrolyte used for?
  • Anionic polyelectrolytes are lower in viscosity, dissolves faster for use in mining industries, paper industries, municipal sewage plants and water treatment plants. Anionic Polyelectrolyte has got a wide range of applications from water purification, oil recovery, color removal, paper making, mineral processing, etc.
  • What are polyelectrolytes?
  • Polyelectrolytes, which are a macromolecule dissolved in water or polar solvent, have gained a wide attention among scientists and engineers for their wide application areas.
  • What is the range of charge of synthetic polyelectrolytes?
  • The range of charge is somewhat limitless and the molecular weight of synthetic polyelectrolytes can vary from 1000 to 10,000,000, depending on the chemistry. This allows for the ability to create and manipulate the desired physical properties of the polymers and their respective performance characteristics.
  • What are the parameters of polyelectrolyte solution?
  • 1. One of the important parameter of polyelectrolyte solution is the concentration dependence of the solution viscosity called the Fuoss law. According to Fuoss law, the viscosity, g, of polyelectrolyte solutions at low concentrations is pro-portional to the square root of polymer concentration. (g * c1/2).

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