• flocculation of kaolinite suspensions in water by chitosan

    Flocculation of kaolinite suspensions in water by chitosan

    Flocculation of kaolinite suspensions in water using chitosan was studied in the pH range 5–9 and the turbidity ranging from 10 to 160 NTU. Chitosan, in presence of trace quantities of a substance present in aqueous soil extracts, effectively reduces turbidity due to kaolinite by flocculation and settling.

  • flocculation of kaolinite clay suspensions using a

    Flocculation of kaolinite clay suspensions using a

    A temperature-sensitive polymer, poly(N-isopropylacrylamide) [poly(NIPAM)], was tested to flocculate kaolinite clay suspensions. Settling tests at both room temperature and 40°C were carried out.

  • flocculation of kaolinite suspensions using chitosan

    Flocculation of kaolinite suspensions using chitosan

    Flocculation of kaolinite suspensions using chitosan 3.1 Introduction Removal of kaolinite turbidity from the effluents before discharging into the environment is a problem faced by the clay processing industry. Faust and Aly (I983) quote extensive application of kaolinite suspensions

  • flocculation of kaolinite suspensions in water by chitosan

    Flocculation of kaolinite suspensions in water by chitosan

    Flocculation of kaolinite suspensions in water using chitosan was studied in the pH range 5–9 and the turbidity ranging from 10 to 160 NTU. Chitosan, in presence of trace quantities of a substance present in aqueous soil extracts, effectively reduces turbidity due to kaolinite by flocculation and settling.

  • flocculation of kaolinite clay suspensions using a

    Flocculation of kaolinite clay suspensions using a

    2006-12-18· To understand the role of temperature in the flocculation, the long‐range interaction and adhesion forces between kaolinite clay particles in the polymer solutions at both room temperature and 40°C were measured using an atomic force microscope (AFM). The measured adhesion forces correlated well with the settling characteristics: a stronger

  • flocculation and dewatering of kaolinite suspensions

    Flocculation and dewatering of kaolinite suspensions

    presents studies performed on the flocculation and dewatering of kaolinite suspensions (the major clay component in MFT) and Athabasca MFT using a combination of two polymers in series. The first additives used were a low molecular weight (LMW) anionic lignin-based polymer (lignosulfonate) and four LMW cationic cellulose-based polymers (Celquat

  • flocculation of kaolinite clay suspensions using a

    Flocculation of kaolinite clay suspensions using a

    To understand the role of temperature in the flocculation, the long‐range interaction and adhesion forces between kaolinite clay particles in the polymer solutions at both room temperature and 40°C were measured using an atomic force microscope (AFM). The measured adhesion forces correlated well with the settling characteristics: a stronger

  • flocculation of selected clays by various electrolytes

    FLOCCULATION OF SELECTED CLAYS BY VARIOUS ELECTROLYTES

    FLOCCULATION OF SELECTED CLAYS BY VARIOUS ELECTROLYTES 271 The clay was flocculated by adding sufficient reagent solution of appro- priate strength to give about 30 ml of clay suspension containing just under 1 percent solids. Settling time was taken as the time for a sharp boundary to appear

  • flocculation of kaolinite clay suspensions using a

    Flocculation of kaolinite clay suspensions using a

    The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

  • flocculation of kaolinite suspensions in water

    Flocculation of Kaolinite Suspensions in Water

    The flocculation of kaolinite colloidal particles was carried out at pH = 6 in suspension of initial turbidity varying between 24 NTU and 102 NTU by a casein extracted from Cocos nucifera cream. During Jar-test essays, 90% to 99% of colloids were eliminated in the sediments. The optimal doses of casein used depend on the initial colloids concentrations of the suspension and were found to be 60

  • flocculation of kaolinite clay suspensions using a

    Flocculation of kaolinite clay suspensions using a

    2007-02-01· Read "Flocculation of kaolinite clay suspensions using a temperature‐sensitive polymer, Aiche Journal" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • flocculation of kaolinite suspensions in water by coconut

    Flocculation of Kaolinite Suspensions in Water by Coconut

    the initial suspension turbidity and were found to be 100 mg/L and 60 mg/L respectively for S1 and S2 suspensions. The coagulating-flocculating activities are 92% for S1 and 88% for S2. No restabilization of kaolinite particles has been noted at the level of suspension S1 whereas this phenomenon occurred for the suspension S2. In fact, an

  • flocculation of kaolin suspension with cationic polymer

    Flocculation of kaolin suspension with cationic polymer

    Flocculation experiments have been carried out using cationic polymers and kaolin suspensions. The effects of polymer dosage, kaolin concentration, pH, agitation, molecular weight and charge density of polymer, concentration of polymer solution, and addition of inorganic salt were systematically examined.

  • effect of coagulants and flocculants on dewatering

    EFFECT OF COAGULANTS AND FLOCCULANTS ON DEWATERING

    Natural pH of prepared kaolin suspensions was 7.86. The pH profiles of kaolin suspension (2.5 wt.%) as a function of time is presented in Figure 1 for an initial pH of natural, acidic (pH 3) and basic medium (pH 11). When the initial pH of kaolin suspension is adjusted to 3, the suspension

  • the effect of electrolyte concentration and ph on the

    THE EFFECT OF ELECTROLYTE CONCENTRATION AND PH ON THE

    kaolinite suspensions at constant shear rates is correlated to Eq. (9) using an appropriate p. Previous authors, Saw [26] and Boger and Walter [27] reported that, p = 2 for concentrated and diluted clay suspensions. 3. Material and Methods 3.1. Kaolinite purification The kaolinite used was ‘Supreme’ grade china clay provided by courtesy of

  • sedimentation behavior of a fine kaolinite in the

    SEDIMENTATION BEHAVIOR OF A FINE KAOLINITE IN THE

    Clays and Clay Minerals, Vol. 40, No. 5, 586-592, 1992. SEDIMENTATION BEHAVIOR OF A FINE KAOLINITE IN THE PRESENCE OF FRESH Fe ELECTROLYTE KUNSONG MA AND ALArrq C. PIERRE Department of Mining, Metallurgical and Petroleum Engineering University of Alberta, Edmonton, Alberta, Canada T6G 2G6

  • flocculation of kaolinite suspensions in water by chitosan.

    Flocculation of kaolinite suspensions in water by chitosan.

    Flocculation of kaolinite suspensions in water using chitosan was studied in the pH range 5-9 and the turbidity ranging from 10 to 160 NTU. Chitosan, in presence of trace quantities of a substance present in aqueous soil extracts, effectively reduces turbidity due to kaolinite by flocculation and settling. Flocculation efficiency is very

  • flocculation of kaolinite suspensions in water

    Flocculation of Kaolinite Suspensions in Water

    The flocculation of kaolinite colloidal particles was carried out at pH = 6 in suspension of initial turbidity varying between 24 NTU and 102 NTU by a casein extracted from Cocos nucifera cream. During Jar-test essays, 90% to 99% of colloids were eliminated in the sediments. The optimal doses of casein used depend on the initial colloids concentrations of the suspension and were found to be 60

  • sedimentation characteristics of kaolin and bentonite

    Sedimentation Characteristics of Kaolin and Bentonite

    concentrations on the sedimentation characteristics of kaolin and bentonite suspensions. Experimental Materials 51525354 The original high grade kaolin and bentonite samples (Turkish Republic) were sieved through 38 µm sieve and the sieve undersizes (<38 µm fractions) were used in the sedimentation experiments. The clay

  • flocculation of kaolin particles with cationic lignin

    Flocculation of kaolin particles with cationic lignin

    For studying the adsorption of KL or KLD on clay particles, KL or KLD was mixed with 50 mL of kaolin (clay) suspensions (0.4 g/L) to make 1 to 128 mg/g dosage of KL or KLD in clay suspensions. The

  • flocculation and dewatering of kaolinite era

    Flocculation and dewatering of kaolinite ERA

    Flocculation and dewatering of kaolinite suspensions and oil sands mature fine tailings using dual polymers. Author / Creator Haroon, M Hasin; The development of a method to consolidate and dewater Athabasca oil sands mature fine tailings (MFT) is one of the

  • difference between flocculated and deflocculated

    Difference Between Flocculated and Deflocculated

    2017-12-12· Suspensions can be divided into two groups as flocculated suspensions and deflocculated suspensions based on electro-kinetic nature of solid particles that are suspended in the suspension. In chemistry, flocculation is the process in which colloids in a suspension can be obtained in an aggregated form.

  • effects of polymer molecular weight on adsorption

    Effects of Polymer Molecular Weight on Adsorption

    adsorption capacities and PAM-mediated flocculation of kaolinite suspensions were investigated using a series of nonionic PAMs with different MWs. Adsorption tests using aqueous kaolinite suspensions dosed with a series of PAMs with MWs of 1.5 kg/mol, 10 kg/mol, 0.6–1 Mg/mol, 5–6 Mg/mol, and 18 Mg/mol (referred to as 1.5 K, 10 K,

  • flocculation of kaolinite suspensions in water

    Flocculation of Kaolinite Suspensions in Water

    The flocculation of kaolinite colloidal particles was carried out at pH = 6 in suspension of initial turbidity varying between 24 NTU and 102 NTU by a casein extracted from Cocos nucifera cream. During Jar-test essays, 90% to 99% of colloids were eliminated in the sediments. The optimal doses of casein used depend on the initial colloids concentrations of the suspension and were found to be 60

  • effect of interaction between clay particles and fe 3

    EFFECT OF INTERACTION BETWEEN CLAY PARTICLES AND Fe 3

    rectly. In clay suspensions where flocculation did not occur, the suspension was centrifuged until a clear su- pernatant liquid separated from the suspension. RESULTS The sedimentation behavior of kaolinite suspensions could be classified into 3 types: 1) accumulation sed-

  • lignin-based flocculant and dispersant for wastewater

    Lignin-based flocculant and dispersant for wastewater

    The applications of the resultant copolymer as a flocculant in kaolin and bentonite suspensions were systematically assessed. The flocculation studies allowed for correlating the polymer characteristics, namely the charge density and molecular weight, with its adsorption affinity as

  • flocculation of kaolinite suspensions in water by chitosan.

    Flocculation of kaolinite suspensions in water by chitosan.

    Flocculation of kaolinite suspensions in water using chitosan was studied in the pH range 5-9 and the turbidity ranging from 10 to 160 NTU. Chitosan, in presence of trace quantities of a substance present in aqueous soil extracts, effectively reduces turbidity due to kaolinite by flocculation and settling. Flocculation efficiency is very

  • flocculation of clay suspensions separated from soils

    Flocculation of clay suspensions separated from soils

    Key Words: flocculation, critical coagulation concentration, surface charge density, soil clays. Clay sols are hydrophobic in nature and flocculated by the addition of small amounts of electrolytes. The flocculation of clay suspensions by various electrolytes has been well studied (1, 6, 7). In general, flocculation by inert electrolytes is

  • influence of ph and ionic strength on flocculation of clay

    Influence of pH and ionic strength on flocculation of clay

    Influence of pH and ionic strength on flocculation of clay suspensions with cationic xylan copolymer. Highlights•Cationic copolymerized xylan was used as flocculant for clay suspensions.•The efficiency of the flocculant was higher under alkaline condition.•Floc size was monitored and related to the sedimentation of particles.•The flocculant removed more of bentonite than kaolin from

  • lignin-based flocculant and dispersant for wastewater

    Lignin-based flocculant and dispersant for wastewater

    The applications of the resultant copolymer as a flocculant in kaolin and bentonite suspensions were systematically assessed. The flocculation studies allowed for correlating the polymer characteristics, namely the charge density and molecular weight, with its adsorption affinity as

  • polymer absorption and flocculation

    Polymer Absorption and Flocculation

    Clay suspensions exhibit quite different behavior. Polymer adsorption and flocculation do not seem to correlate with molecular configuration. Both adsorption and flocculation appear to be controlled by the state of dispersion or the solid. When the clay particles are highly dispersed (at high pH, for example), adsorption is high (due to the

  • flocculation

    Flocculation

    Flocculation, in the field of chemistry, is a process in which colloids come out of suspension in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent. The action differs from precipitation in that, prior to flocculation, colloids are merely suspended in a liquid and not actually dissolved in a solution

  • flocculation dewatering clay

    Flocculation Dewatering Clay

    To obtain optimum flocculation, each plant-waste suspension had to be evaluated separately. Effect of Solution Concentration. Laboratory tests were conducted to establish the effects of PEO concentration on dewatering the high-grade clay suspensions as well as the five plant wastes. The slurries were treated with PEO solutions of the following

  • flocculation and rheology of kaolinite/quartz

    Flocculation and rheology of kaolinite/quartz

    Rheological properties of suspensions of Na-kaolinite and colloidal quartz (Min-U-Sil) at constant overall volume concentration of 2% are determined with a Weissenberg Rheogoniometer using a combined Couette and cone-and-plate geometry. The results are interpreted in terms of the flocculation behaviour of the constituent particles in the presence of high salt concentrations (0.1–0.75m NaCl

  • deflocculation digitalfire

    Deflocculation digitalfire

    In ceramics, when we speak of deflocculation, we are almost always talking about making a casting slip.Glazes can also be deflocculated (to reduce water content and densify laydown). Deflocculation is the process of making a clay slurry that would otherwise be very thick and gooey into a thin pourable consistency (it is the opposite of flocculation).

  • clay settling in fresh and salt water university of alberta

    Clay settling in fresh and salt water University of Alberta

    Clay settling in fresh and salt water and water with clay in suspension (below) forms near the surface. After formation the concentration-front descends at a near constant speed until the effects of hindered settling become important. When the concentration-front forms in saline fluid, the 10 cm deep tank is cleared of particles in tens of minutes instead of tens of hours as is the case

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