characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide as flocculation aids. Meanwhile, cationic PAM can form flocs with larger size than anionic PAM due to the contribution of both charge neutralization and bridging. Floc density was affected by molecular weight dramatically when using anionic PAM.

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characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide as flocculation aids. For a given floc size, the density increased with molecular weight. Furthermore, flocs formed by cationic PAM showed much greater shear-resistant ability and reversibility than anionic PAM. Nevertheless, the poor reversibility of the flocs formed by high

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characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide as flocculation aids Article in International Journal of Mineral Processing 91(3):94-99 · May 2009 with 55 Reads How we measure 'reads'

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characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide

Characterization of kaolin flocs formed by polyacrylamide as flocculation aids . strength and reversibility were investigated in details in terms of their response to the polyacrylamide (PAM) with different charge types and molecular weights. Laser light scattering, image analysis and settling technology were employed simultaneously.

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flocculation of kaolin particles with cationic lignin polymers

Flocculation of kaolin particles with cationic lignin polymers

Flocculation of kaolin particles with cationic lignin polymers Lu, J., Wang, D. & Yao, C. Characterization of kaolin flocs formed by polyacrylamide as flocculation aids. A., Fatehi, P

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an effective flocculation method to the kaolin wastewater

An Effective Flocculation Method to the Kaolin Wastewater

An Effective Flocculation Method to the Kaolin Wastewater Treatment by a Cationic Polyacrylamide (CPAM): Preparation, Characterization, and Flocculation Performance the large and compact kaolin flocs were formed and were efficiently removed. and F. Xue, “Polyacrylamide and poly(N,N-dimethylacrylamide) grafted cellulose nanocrystals as

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behaviours of kaolin suspensions with different

Behaviours of Kaolin Suspensions with Different

As kaolin is often present within tailings, this study focused on the effects of shear on kaolin suspensions at 20 weight percent (wt%) solids containing polymer-bridged flocs formed by either

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enhancement of dewatering properties of kaolin suspension

Enhancement of Dewatering Properties of Kaolin Suspension

Enhancement of Dewatering Properties of Kaolin Suspension by Using Cationic Polyacrylamide (PAM-C) Flocculant and Surfactants Characterization of kaolin flocs formed by polyacrylamide as

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template polymerization of a novel cationic polyacrylamide

Template Polymerization of a Novel Cationic Polyacrylamide

An Effective Flocculation Method to the Kaolin Wastewater Treatment by a Cationic Polyacrylamide (CPAM): Preparation, Characterization, and Flocculation Performance. International Journal of Polymer Science 2018, 2018, 1-12. DOI: 10.1155/2018/5294251. Sarang P. Gumfekar, João B.P. Soares.

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production, characterization, and flocculation mechanism

Production, Characterization, and Flocculation Mechanism

Between 200–300 µm flocs were formed by the ETH-2 strain when tested for kaolin clay flocculation (Figure 7b), indicating its advantage on flocculation. The purified bioflocculant ETH-2 also formed 100–200 µm flocs during kaolin clay flocculation testing (Figure 7c), larger than flocs formed by Bacillus megaterium TF10 (20–30 µm) .

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settling velocities of fractal aggregates | environmental

Settling Velocities of Fractal Aggregates | Environmental

Characterization of kaolin flocs formed by polyacrylamide as flocculation aids. International Journal of Mineral Processing 2009, 91 (3-4) , 94-99. DOI: 10.1016/j.minpro.2009.01.003. Tao Li, Xiaomin Yan, Dongsheng Wang, Fulin Wang. Impact of preozonation on the performance of coagulated flocs.

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intrinsic viscosity, surface activity, and flocculation

Intrinsic viscosity, surface activity, and flocculation

The polymer exhibited good surface activity in both water and salt solution. Its flocculation properties were evaluated with kaolin suspensions using a standard jar test. The results demonstrated the superiority of the copolymer over the no-modified cationic polyacrylamide as a flocculant.

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the investigation of the specific behavior of a cationic

The investigation of the specific behavior of a cationic

The fabrication of a cationic polyacrylamide (CPAM) with high efficiency and economy has been highly desired in the field of high-turbidity water treatment. polyacrylamide (PAM) made in the laboratory was used for the characterization analysis. 2.2. Synthesis of copolymers The FTIR analysis of the kaolin flocs that formed confirmed that

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novel, rosin‐based, hydrophobically modified cationic

Novel, rosin‐based, hydrophobically modified cationic

Kaolin particles were mainly adsorbed on the surfaces of flocculants via van der Waals forces; this resulted in looser and lighter flocs that formed via bridging effects and hydrophobic associations during the agglomeration period.

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synthesis and characterization of different molecular

Synthesis and Characterization of Different Molecular

Characterization of synthesized polyacrylamide The polymer characterization is almost as important as polymer preparation. Without characterization, polymer synthesis becomes additional exercise. Fourier Transform Infrared (FTIR) Spectra analysis Fourier transform infrared spectroscopy (FTIR) is a very important step in polymer characterization.

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synthesis and characterization of poly(acrylamide-co

Synthesis and Characterization of Poly(Acrylamide-Co

Synthesis and Characterization of Poly(Acrylamide-Co-Acrylic Acid) kaolin suspension at room temperature using different polymer dosages between 0 to 10 ppm. High in the most cases, the flocs formed during flocculation by organic polymers are bigger and stronger than during

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the flocculation of kaolin by cationic polyacrylamides

The flocculation of kaolin by cationic polyacrylamides

Cationic polyacrylamide caused flocculation by bridging when added in low concentrations, but at higher concentrations, charge neutralization became the dominant mechanism and the flocculation rate was highly dependent on the charge density of the polymer.

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production, characterization, and flocculation mechanism

Production, Characterization, and Flocculation Mechanism

Between 200–300 µm flocs were formed by the ETH-2 strain when tested for kaolin clay flocculation (Figure 7b), indicating its advantage on flocculation. The purified bioflocculant ETH-2 also formed 100–200 µm flocs during kaolin clay flocculation testing (Figure 7c), larger than flocs formed by Bacillus megaterium TF10 (20–30 µm) .

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the investigation of the specific behavior of a cationic

The investigation of the specific behavior of a cationic

FTIR analysis of the kaolin flocs that formed indicated that the cationic microblock structure could generate a strong and powerful bond between TPAA and kaolin particles, but not chemical bonds, via the effect of charge neutralization, patching and bridging. In this case, the flocs generated by TPAA were dense and large, which thus resulted in

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intrinsic viscosity, surface activity, and flocculation

Intrinsic viscosity, surface activity, and flocculation

Abstract. A novel cationic polyacrylamide modified with fluorinated acrylate had been synthesized of acrylamide (AM), methacryloxyethyl trimethylammonium chloride (DMC), and 2-(perfluorooctyl)ethyl acrylate (FEA) by free radical micellar copolymerization in aqueous solution utilizing cetyl trimethylammonium bromide (CTAB) as the surfactant and potassium persulfate (KPS)/sodium bisulfite (SBS

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characterization of alum floc by image analysis

Characterization of Alum Floc by Image Analysis

Effects of humic acid on physical and hydrodynamic properties of kaolin flocs by particle image velocimetry. Water Research 2011, DOI: 10.1016/j.watres.2011.05.006. Hongliang Wang, Zhiming Yu, Xihua Cao, Xiuxian Song. Fractal dimensions of flocs between clay particles and HAB organisms. Chinese Journal of Oceanology and Limnology 2011, 29, 656

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characterization of re-grown floc size and structure

Characterization of re-grown floc size and structure

The impact of mixing speed in three stages—before breakage, during breakage, and after breakage—on re-grown floc properties was investigated by using a non-intrusive optical sampling and digital image analysis technique, respectively. And then, on the basis of different influence extent of mixing speed during each stage on size and structure of re-grown flocs, coagulation performance with

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synthesis and characterization of poly(acrylamide-co

Synthesis and Characterization of Poly(Acrylamide-Co

Synthesis and Characterization of Poly(Acrylamide-Co-Acrylic Acid) kaolin suspension at room temperature using different polymer dosages between 0 to 10 ppm. High in the most cases, the flocs formed during flocculation by organic polymers are bigger and stronger than during

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fabricating an anionic polyacrylamide (apam) with an

Fabricating an anionic polyacrylamide (APAM) with an

Fabricating an anionic polyacrylamide (APAM) with an anionic block structure for high turbidity water separation and purification†. Li Feng ab, Huaili Zheng * ab, Baoyu Gao c, Shixin Zhang ab, Chuanliang Zhao ab, Yuhao Zhou ab and Bincheng Xu ab a Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.

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the flocculation of kaolin by cationic polyacrylamides

The flocculation of kaolin by cationic polyacrylamides

The flocculation of kaolin suspended in a dilute salt solution was studied as a function of the addition of cationic surfactant and cationic polyacrylamide (CPAM) added separately, consecutively, or simultaneously.

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flocculation of a high-turbidity kaolin suspension using

Flocculation of a High-Turbidity Kaolin Suspension Using

However, the two peaks were non-existent in the spectra of flocs, because the PAMD dosage was lower than the content of kaolin particles in water. As presented in Figure 11 , a schematic diagram of the removal of kaolin from water by the modified flocculant was conjectured based on the analysis of the infrared spectrum of kaolin, floc, and PAMP

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characterization of a bioflocculant (mbf-ufh) produced

Characterization of a Bioflocculant (MBF-UFH) Produced

The flocculating efficiency of MBF-UFH for kaolin clay suspension was compared with the conventional flocculants, such as aluminum chloride, ferric chloride and anionic polyacrylamide (Table 2). The maximum flocculation rate was achieved at the optimum concentration of these flocculants; and it was observed that polyacrylamide has the highest flocculating efficiency (94.30%), followed by MBF-UFH (91.1%), aluminum chloride (67.99%) and ferric chloride (42.78%).

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synthesis, characterization, and flocculation studies of β

Synthesis, Characterization, and Flocculation Studies of β

The flocs formed during flocculation are moreover bigger and stronger to endow excellent settling behavior. [ 1 , 2 ] Recently, temperature‐responsive star, homopolymer, and diblock copolymer based on poly( N ‐isopropylacrylamide) (P(NIPAM)) have been reported as novel flocculant to accelerate settling rate and enhanced flocculation.

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effect of kaolin on floc properties for reactive orange

Effect of kaolin on floc properties for reactive orange

Magnesium hydroxide was used as a coagulant for treating reactive orange wastewater in a real continuous process. Effects of kaolin on coagulation performance and floc properties were investigated with controlled experiments through floc size distribution, zeta potential, scanning electron microscopy and Fourier transform infrared spectroscopy.

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flocculation property of composite flocculants pac/cpam

Flocculation property of composite flocculants PAC/CPAM

References. I.K.M. Manda, R.C.G. Chidya, J.D.K. Saka, T.T. Biswick, Comparative assessment of water treatment using polymeric and inorganic coagulants, Phys. Chem

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1 research article 2 operating parameters affecting the

1 Research Article 2 Operating Parameters Affecting the

of Kaolin Aerated Flocs in Water and Wastewater Treatment The formation of aerated flocs (aeroflocs) and the main operating parameters involved were studied to improve the rapid solid/liquid separation by flocculation–flotation. A continuous flow system at the laboratory scale was used that coupled micro-bubbles

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characterization of ballasted flocs in water treatment

Characterization of ballasted flocs in water treatment

An anionic high molecular weight polyacrylamide formed 1.5-fold larger aggregates compared with the starch-based polymer tested, but both polymers produced flocs of similar density (relative density = 1.53 ± 0.03). Generally, the floc mean settling velocity is a good predictor of the turbidity removal.

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