Flocculation of colloidal silica with polyacrylamide
The stability of colloidal silica in the presence of polyacrylamide has been studied by electroacoustic potential measurements and sedimentation testwork. Prior conditioning with AlCl 3 ·6H 2 0 or dodecylamine resulted in more effective action of the polymer.
Adsorption and flocculation behavior of cationic polyacrylamide and colloidal silica Article in Colloids and Surfaces A Physicochemical and Engineering Aspects 219(1-3):161-172 · June 2003
Flocculation of Colloidal Silica with Hydrolyzed Aluminum
Flocculation of colloidal silica with aluminum fractal polymers was investigated by 27Al magic angle spinning and 29Si cross polarization magic angle spinning NMR as a function of aluminum concentration and pH. Aluminum flocculant species were prepared by dilution of a commercially available flocculant, WAC HB, the hydrolysis of which yields Al13 polymers.
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Adsorption and flocculation of cationic polyacrylamide
Request PDF | Adsorption and flocculation of cationic polyacrylamide and colloidal silica - Kinetic aspects | The adsorption of cationic polyacrylamide (C-PAM) and anionic silica particles onto
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Flocculation of Colloidal Silica with Hydrolyzed Aluminum
In Final Form: October 11, 1996X Flocculation of colloidal silica with aluminum fractal polymers was investigated by 27Al magic angle spinning and 29Si cross polarization magic angle spinning NMR as a function of aluminum concentration and pH.
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Flocculation of kaolin particles with cationic lignin polymers
Currently, lignin of black liquor is incinerated to generate energy in pulp mills; but it has potential to be valorized through different modification methods. In this work, kraft lignin (KL) was
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Adsorption and flocculation behavior of cationic
The effect of ionic strength and nanoparticle structure on the adsorption and flocculation behavior has been studied for both a one-component cationic polyacrylamide system and a two-component polyacrylamide–silica nanoparticle system. The flocculation was measured both in the absence and in the presence of fine material from the fibers. 2.
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coagulation and flocculation Articles | Environmental XPRT
Coagulation and flocculation are two main processes used to integrate colloidal particles into larger particles and are two main stages of primary water treatment. Coagulation and flocculation processes are only needed when colloidal particles are a significant part of the total suspended solid fraction.
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Coagulants / Flocculants for Water Treatment - chemistry
Coagulants / Flocculants for Water Treatment SNF FLOERGER ZAC de Milieux 42163 Andrézieux Cedex - FRANCE Tel: + 33 (0)4 77 36 86 00 Fax: + 33 (0)4 77 36 86 96 [email protected][email protected]
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flocculation Articles | Environmental XPRT
Find flocculation articles , the world’s largest environmental industry marketplace and information resource.
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Process for flocculation of a tailings stream - E. I. du
Process for flocculation of a tailings stream . United States Patent 8388832 . Abstract: A process for the treatment of a tailings stream is provided. a polyacrylamide and one or both of a multivalent metal compound and a low molecular weight cationic organic polymer with a tailings stream to flocculate sand and clay fines.
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FR2513619A1 - Waste water purificn. by flocculation with
In a process for purifying waste waters by coagulation -flocculation using iron or aluminium salts as coagulation agents, opt. in polymeric forms, the improvement comprises using an alkaline aq. Na silicate soln. as adjuvant. Amt. of coagulation agent used is 0.3-20 mg Fe2O3 or Al2O3 per l water to be treated. Amt. of Na silicate soln. used is such that the atomic ratio of Si/Fe or Si/Al is 0.1-1.
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flocculation Articles | Environmental XPRT
Find flocculation articles , the world’s largest environmental industry marketplace and information resource.
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Minerals | Free Full-Text | Comparative Study of the
Studied sludge samples are composed of major goethite and quartz; less clay minerals; and minor magnetite, hematite, clinochlore and todorokite. They have quite similar qualitative, but different semi-quantitative compositions. There are similar particle size distributions between the samples, and the highest contents of ~50% belongs to the finest classes of <6 μm. Among size classes
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P. SOMASUNDARAN - Columbia University
Das, K. K., and P. Somasundaran, 'Flocculation-Dispersion Characteristics of Alumina Using a Wide Molecular Weight Range of Polyacrylic Acids', Colloids and Surfaces A-Physicochemical and Engineering Aspects, 223 (2003), 17-25.
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IBIMA Publishing Optimization of Graft Polymerization
Cite this Article as: Emad Ali SOLIMAN, El-Sayed Mohamed El-Sayed MANSOUR, Hammed Ahmed Mohamed HASSAN and Noha Amaly Mohammed HASSAN (2014), “Optimization of Graft Polymerization and Performance of Carboxymethyl Chitosan / Polyacrylamide Flocculants", Journal of Research & Developments in Chemistry, Vol. 2014 (2014), Article ID 351498, DOI
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EFFICIENCY OF CHITOSANS FOR THE TREATMENT OF PAPERMAKING
Flottatest FTH3 supplied by Orchidis Laboratories (France). The experimental protocol followed is shown in Figure 1. The different dosages of chitosans and bentonite were added from 1.0 wt.% stock solutions to a 1L volume of the process water sample. After flocculation, 200 mL of tap water saturated with air at about 6.5 bar was added for the
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Article
Article history: Received 27 March 2009 Received in revised form 6 May 2010 Accepted 15 December 2010 Available online 22 December 2010 Keywords: Linear and branched polyelectrolytes Kinetics occulation rate constants Floc fractal dimensions. abstract. Flocculation studies between cationic polymers and oppositely charged colloidal particles are
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US Patent for Structurally-modified polymer flocculants
This dispersed silica, may be in the form of colloidal, silicic acid, silica sols, fumed silica, agglomerated silicic acid, silica gels, precipitated silicas, and all materials described in Patent Cooperation Treaty Patent Application No. PCT/US98/19339, so long as the particle size or ultimate particle size is within the above ranges.
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The Science and Technology of Industrial Water Treatment
You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.
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Adsorption characteristics of polyacrylamide and sulfonate
Adsorption characteristics of polyacrylamide and sulfonate-containing polyacrylamide copolymers on sodium kaolinite. код для вставки
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EFFICIENCY OF CHITOSANS FOR THE TREATMENT OF PAPERMAKING
Flottatest FTH3 supplied by Orchidis Laboratories (France). The experimental protocol followed is shown in Figure 1. The different dosages of chitosans and bentonite were added from 1.0 wt.% stock solutions to a 1L volume of the process water sample. After flocculation, 200 mL of tap water saturated with air at about 6.5 bar was added for the
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LARTIGES Bruno / Pages profils / GET - GET
G. Frappier (2009) Aggregation dynamics of latex particles in a double Couette reactor [with S. Skali-Lami]. Current position: Research Engineer (Idées Eaux - France) A.Z. Bouyakoub (2009) Removal of Levafix blue azo-dye from textile wastewaters [with S. Kacha]. Current position: Associate-Professor Siddi Bel Abbes University (Algeria)
Get Price- What is anionic polyacrylamide (APAM)?
- Anionic polyacrylamide (APAM) is a hydrophilic polymer. Anionic polyacrylamide (APAM) is an easily carbonized polymer (Choi et al., 2004 ). The amide group (−CONH 3) on APAM can form hydrogen bonds with the uncondensed amine groups on the surface of g-C3 N 4 ( Schwinghammer et al., 2014 ).
- Can anionic polyacrylamide be used as a mediator in environmental remediation?
- Anionic polyacrylamide (APAM) is a hydrophilic polymer that is easily carbonized (Choi et al., 2004 ) and can potentially improve the activity of heterojunction in environmental remediation as an accessible and cheap mediator.
- What is the photocatalytic mechanism of TC degradation by C–W/N?
- The proposed photocatalytic mechanisms of TC degradation by C–W/N is described. Thin 2D/2D WO 3 /g-C 3 N 4 Step-scheme (S-scheme) heterojunction with carbon doping and bridge (C–W/N) was constructed with anionic polyacrylamide (APAM), which functioned as an assistant template and a carbon source.
- Which ternary composite has better photocatalytic activity for TC degradation?
- The obtained C–W/N ternary composite shows improved photocatalytic activity for TC degradation compared with pure g-C 3 N 4, WO 3, and other binary composites (C–W, C–N and W/N). Importantly, C–W/N also exhibits excellent photocatalytic activity for TC degradation in different initial concentration and pH value.
