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flocculation and dewatering of kaolin deepdyve

Variable Temperature Infrared Spectroscopy Studies of Aromatic Acid ...

Molecular interactions between benzoic, salicylic, and acetylsalicylic acids and water contained within montmorillonite clay interlayer spaces are characterized by using variable temperature diffus...

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Process for improving rheology of clay slurries

In the process for producing a refined kaolin clay pigment by forming a crude kaolin clay into an aqueous slurry, performing a particle size classification, and subjecting the slurry to reductive bleaching with an alkali metal hydrosulfite; a method is disclosed for reducing the viscosity of a slurried product including the refined pigment, which method comprises adding a source of barium ion ...

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DeepDyve - Unlimited Access to Peer-Reviewed Journals

DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. DeepDyve is the easiest way to get instant access to the academic journals you need.

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en/sedimentation kaolin flocs.md at main · sbmboy/en

Jan 23,2003 · Michaels and Bolger reported in early studies the settling rates,sediment volumes and flow properties of flocculated kaolin suspensions.They stated that the primary flow units in the suspension were flocs of particles.These flocs did not break down into smaller units under the mild shear forces of gravity settling.

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Influence of polymer adsorption and conformation on flocculation and ...

Table 3 presents the summary of adsorption of each flocculant on kaolin at acidic, alkaline and near neutral pH, and the corresponding flocculation of kaolin in terms of settling rate. The adjustment in pH values were done by 1 M solution of HCl and NaOH.Table 3 shows that when the surface is almost neutral at pH 2.3, a higher amount of polymer gets adsorbed on the surface.

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Reducing Turbidity of Construction Site Runoff: Coagulation with ...

Flocculation tests were performed on the synthetic runoff suspensions with PAM doses ranging from 0.03 to 10 mg/L. ... R.A., and Zimmerman, A. Best Management Practices for Chemical Treatment Systems for Construction Stormwater and Dewatering. FHWA-WFL/TD-09-001. ... Peng, F.F., and Di, P. Effect of Multivalent Salts—Calcium and Aluminum on ...

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Adsorptive and Membrane-Type Separations: A Bibliographical Update ...

Chen, W.J. (1998) Effects of surface charge and shear during orthokinetic flocculation on the adsorption and sedimentation of kaolin suspensions in polyelectrolyte solutions, Sep. Sci. Technol. 33(4), 569 - 590.

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Chitosan‐graft‐acrylamide polyelectrolytes: Synthesis, flocculation ...

An, Study on chain deformation of polyacrylamides in solutions and its flocculation performance during the flocculation process, Journal of Applied Polymer Science, 10.1002/app.32193, 117, 5, (2915-2922), (2010).

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Extracellular polymeric substances (EPS) producing bacterial strains of ...

Bioflocculability of obtained EPS was evaluated by measuring the kaolin clay flocculation activity. Six bacterial strains (BS2, BS8, BS9, BS11, BS15 and BS25) were selected based on the kaolin clay flocculation. The slime EPS was better for bioflocculation than capsular EPS and bacterial broth.

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10.1016/j.mineng.2003.10.029 | DeepDyve

Read "10.1016/j.mineng.2003.10.029" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. ... associated with phosphatic clay disposal have stimulated research efforts to find economical and practical methods for dewatering and consolidating phosphatic clays ...

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flocculation properties of acrylamide-based cationic in swaziland - New ...

Flocculation properties of acrylamide-based cationic copolymer in effective water clarification Madhur Gagneja & Paramjit Singh* Department of Chemical Engi

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10.1016/j.minpro.2005.01.001 | DeepDyve

A later paper reports on kaolin agglomerates conditioned with high molecular organic flocculant (e.g. partially hydrolysed polyacrylamide) with particle volume fraction of 0.22 on average ( Yusa, 1977 ). More recent publication Hemme et al. also deals with sludge treatment optimisation by means of pelleting flocculation.

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A Semi-Empirical Model to Estimate Maximum Floc Size in a Turbulent ...

1. Introduction. Flocculation is a conventional physico-chemical technique used in many industries, particularly in the industrial ore and mineral processing industry, the food, paper and pharmaceutical industries, and, more prevalently, in water treatment (drinking water and wastewater) [1,2,3,4].It is a process through which solid or microbial elementary particles dispersed in a fluid ...

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Polymer adsorption: its correlation with flocculation and dewatering of ...

The adsorption characteristics of polyacrylamide flocculants on kaolin surface have been studied at 25 °C as a function of concentration in the presence and absence of surfactants. ... Flocs suitable for filtration and dewatering are obtained by flocculation of either untreated or surfactant-pretreated kaolin. But in each case, the requirement ...

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10.1016/S0927-7757(97)00344-0 | DeepDyve

The flocculation behaviors of kaolin suspensions with cationic polyacrylamides have been extensively investigated [6, 7] . While many investigations were made of setting rate, supernatant turbidity and polymer adsorption, fewer results have been reported for the dewatering behaviors of conditioned kaolin sludge.

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Fundamentals of particle flocculation and removal from water

The U.S. Department of Energy's Office of Scientific and Technical Information

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Mineral fillers

1. In a method of dewatering by pressure filtration an aqueous suspension of a kaolin clay having a particle size distribution such that it contains from 1 to 20% by weight of particles having an equivalent spherical diameter smaller than 1 micron, the improvement which comprises treating the aqueous suspension of the clay, prior to dewatering by pressure filtration at a pressure in excess of ...

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Synthesis, characterization and application of a novel starch-based ...

study. Flocculation abilities of starch, PAM and STC-g-PDMC were evaluated using 0.25 wt% of kaolin suspension as described previously (Wang et al., 2007). The flocculants in solution form were added into 500-mL kaolin suspension. The suspension was then immediately started to stir at a constant speed of 200 rpm for 2 min, followed by a slow ...

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tabling mineral processing - cigar2019

Read quotRecovery of metal from slag/mixed metal generated in ferroalloy plantsa case study, International Journal of Mineral Processingquot on DeepDyve, the largest . Published in: International Journal of Mineral Processing 183 2005Authors: R Sripriya 183 Ch V G K MurtyAffiliation: Tata SteelAbout: Chromium 183 Gravity separationInquire Now

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Flocculation and dewatering of kaolin suspensions in the presence of ...

The kaolin settling rate improves by more than twentyfold through flocculation by PAM-N. Flocculation also reduces the specific resistance to filtration (SRF) from 7.8×10 11 to 1.1×10 11 m/kg. The high molecular weight polymer, however, entraps excess water in the flocs resulting in very high cake moisture content.

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10.1016/S0301-7516(02)00064-9 | DeepDyve

1 Introduction Flocculation of fine particles by high-molecular-weight polymers is a popular practice adopted for solid-liquid separation in many industries dealing with slurries of fine particles, waste water treatment, mineral processing and hydrometallurgical operations.

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10.1016/S0301-7516(02)00066-2 | DeepDyve

Read "10.1016/S0301-7516(02)00066-2" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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cotation du floculant polyacrylamide pam au maroc | fabricants de ...

Studies on flocculation and dewatering of kaolin suspensions by anionic polyacrylamide flocculant in the presence of some surfactants | Request PDF. Anionic polyacrylamide-acrylate copolymer (PAM) and non-ionic polyethylene oxide (PEO) polymer adsorption onto smectite particles, in the presence of 5 × 10−2 M Ca(II) ions, led to polymer ...

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Dewatering of Phosphatic Clay Waste by Flocculation - DeepDyve

This work focuses on the dewatering of phosphatic clay waste of Egyptian Abu‐Tartur phosphate ore by flocculation using polyacrylamides to enhance the dewatering rate and recycling of the process water. The experimental program includes sieving, hydrocyclone separation and flocculation of the overflow of hydrocyclone. Results revealed that the coarser fraction larger than 32 micron is ...

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A Comparative Study on the Flocculation of Silica and China Clay with ...

The flocculation window is the sector with a very low turbidity. PAM-TAC features the broadest flocculation window in the m P /m S range of 0.15 mg/g to 0.3 mg/g for silica and in the m P /m S range of 7.5 mg/g to 11.5 mg/g for china clay. A broad flocculation window and therefore a broad region with a good flocculation can be beneficial for ...

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State-of-the-Practice Review on the Use of Flocculants for Construction ...

Feb 19, 2021Kang, J., McLaughlin, R. A. Simple Systems for Treating Pumped, Turbid Water with Flocculants and a Geotextile Dewatering Bag. Journal of ... D. Effect of Multivalent Salts- Calcium and Aluminum on the Flocculation of Kaolin Suspension with Anionic Polyacylamide. Journal of ... Rent with DeepDyve. Rent Article. Research off-campus ...

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Melamine-formaldehyde resins in the flocculation of high solids mineral ...

Melamine-formaldehyde resins in the flocculation of high solids mineral slurries US4990263 Finely divided aqueous mineral slurries such as kaolin clay and calcium carbonate are dewatered, filtered and prepared for shipment by and with the addition of an effective amount (preferably 0.01 to 4.0 pounds per ton of solids ) of melamine/formaldehyde ...

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Polymer adsorption: its correlation with flocculation and dewatering of ...

Flocs suitable for filtration and dewatering are obtained by flocculation of either untreated or surfactant-pretreated kaolin. But in each case, the requirement of polymer concentration for achieving the minimum specific resistance to filtration (SRF) is sufficiently lower than that required for optimum flocculation.

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