• polymer induced flocculation and separation

    Polymer induced flocculation and separation

    Polymer induced flocculation and separation of particulates from extracts of lignocellulosic materials. Extracts from wood treated for 120 min was chosen for all the flocculation experiments with polymers. This extract (representing 20.6% mass removal) was chosen as the baseline since it contained the maximum amount of solids in both dissolved and particulate forms. Once the extract was

  • (629c) polymer induced flocculation and separation

    (629c) Polymer Induced Flocculation and Separation

    (629c) Polymer Induced Flocculation and Separation of Particulates From Extracts of Lignocellulosic Materials

  • polymer induced flocculation and separation

    Polymer induced flocculation and separation

    2010-11-01· Read "Polymer induced flocculation and separation of particulates from extracts of lignocellulosic materials, Bioresource Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • polymer induced flocculation and separation

    Polymer induced flocculation and separation

    Polymer flocculation by using polyaluminium chloride (PAC) was infeasible due to the conflict between NSC selectivity and NSC removal. Lime treatment showed remarkable selectivity up to 90% due to

  • abstract: polymer induced flocculation and separation

    Abstract: Polymer Induced Flocculation and Separation

    Polymer Induced Flocculation and Separation of Particulates From Extracts of Lignocellulosic Materials Thursday, November 11, 2010: 1:20 PM. 150 C Room (Salt Palace Convention Center) Gustavo Duarte 1, Bandaru Ramarao 2 and Thomas Amidon 2, (1)Department of Paper and Bioprocess Engineering, State University of New York, Syracuse, NY, (2)State University of New York, Syracuse, NY Biofuels

  • mathematical modeling of polymer-induced flocculation

    Mathematical modeling of polymer-induced flocculation

    In fact, relatively thin adsorbed PAA layers and comparable rates of flocculation obtained with KCl and PAA, measured at pH 3, seemingly justify the modified DLVO theory, as implemented in the present work for polymer-induced flocculation by charge neutralization.

  • polymer induced flocculation and separation

    Polymer induced flocculation and separation

    Main content area. Polymer induced flocculation and separation of particulates from extracts of lignocellulosic materials

  • (pdf) polymer induced flocculation of hydrolyzates

    (PDF) Polymer Induced Flocculation of Hydrolyzates

    Polymer Induced Flocculation of Hydrolyzates

  • polymer absorption and flocculation

    Polymer Absorption and Flocculation

    Polymer adsorption on quartz also seems to be controlled by the polymer configuration, but the flocculation behavior seems to depend more on the surface properties of the solid. Clay suspensions exhibit quite different behavior. Polymer adsorption and flocculation do not seem to correlate with molecular configuration. Both adsorption and

  • dynamics of flocculation of lignocellulosic hydrolyzates

    Dynamics of Flocculation of Lignocellulosic Hydrolyzates

    2012-04-11· Flocculation by PEI was sensitive to pH (from hydrolyzate pH of 3 to 8) with increased dosage necessary at higher pH values. The cationicity of PEI is reduced at higher pH which results in loss of its effectiveness. On the other hand, the zeta potential was largely unaffected with CPAM dosage indicating the dominance of bridging flocculation

  • (192m) separation and purification of lignocellulosic

    (192m) Separation and Purification of Lignocellulosic

    Here, we report the separation of hot water based hydrolyzates of sugar maple by polymer induced flocculation. In the polymer induced flocculation, we investigated the dynamics of flocculation of wood extracts with particular emphasis on the action of four different flocculating agents Alum, PEI, pDADMAC and PEO. The variation in zeta

  • 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

  • polyacrylamide degradation and its implications

    Polyacrylamide degradation and its implications

    The flocculation and adsorption capacity increase with increasing MW due to the greater number of binding sites. 13 However, polymer molecules with a MW greater than around 18 × 10 6 Da are more

  • coagulation and flocculation in water and wastewater

    Coagulation and Flocculation in Water and Wastewater

    Orthokinetic flocculation arises from induced velocity gradients in the liquid. It is here that primary particles are induced to approach close enough together, make contact and progressively form larger agglomerates, or flocs. The principal parameter governing the rate of orthokinetic flocculation is the velocity gradient applied. The degree

  • induced flocculation of animal cells in suspension culture

    Induced flocculation of animal cells in suspension culture

    In addition to the lowered acute toxicity, the polymer treatment left the cells in a growing state for recycle. Flocculation was found to be mediated by precipitates of the polymer. The low toxicity of poly‐ L ‐histidine is probably due to its low solubility and charge at physiological pH. Nonelectrostatic interactions may also play a role.

  • difference between coagulation and flocculation

    Difference Between Coagulation and Flocculation

    2016-12-26· In contrast, in flocculation, the de-stabilization is brought about by physical techniques such as mixing of the solution, and also sometimes by the addition of polymers. This is the key difference between coagulation and flocculation. 1. What is a Colloidal Suspension Definition, Properties, Process. 2. What is a Coagulation

  • polymer induced flocculation and separation

    Polymer induced flocculation and separation

    Main content area. Polymer induced flocculation and separation of particulates from extracts of lignocellulosic materials

  • depletion force

    Depletion force

    A depletion force is an effective attractive force that arises between large colloidal particles that are suspended in a dilute solution of depletants, which are smaller solutes that are preferentially excluded from the vicinity of the large particles. One of the earliest reports of depletion forces that lead to particle coagulation is that of Bondy, who observed the separation or 'creaming

  • synthesis of cationic flocculant by radiation‐induced

    Synthesis of cationic flocculant by radiation‐induced

    The radiation‐induced copolymerization of the methyl chloride salt of N,N‐dimethylaminoethyl methacrylate (DMAEM·MC) with acrylamide (AAm) was used to prepare a cationic polymer flocculant. The polymerization rate increased with increasing dose rate, polymerization temperature, monomer concentration and mole fraction of AAm in the monomer

  • depletion interaction; brief explanation youtube

    depletion interaction; brief explanation YouTube

    2014-05-26· Brief explanation of the depletion interaction between colloidal particles induced in a solution containing nonadsorbing polymers by Remco Tuinier. Find a

  • coagulation and flocculation mrwa

    COAGULATION AND FLOCCULATION MRWA

    Coagulation and Flocculation Process Fundamentals 1 Coagulation and Flocculation . Groundwater and surface water contain both dissolved and suspended particles. Coagulation and flocculation are used to separate the suspended solids portion from the water. Suspended particles vary in source, charge, particle size, shape, and density. Correct

  • chemical and physical variables in polymer-induced

    Chemical and physical variables in polymer-induced

    The flocculation of fine-particle suspensions by polymers is a nonequilibrium process whose performance is strongly influenced by physical as well as chemical variables. A standardized test procedure has been developed that provides quantitatively reproducible measurements of process performance in terms of the floc settling rate supernatant

  • induced flocculation of pachysolen tannophilus using the

    Induced flocculation of Pachysolen tannophilus using the

    OSTI.GOV Journal Article: Induced flocculation of Pachysolen tannophilus using the tower fermentor

  • difference between coagulation and flocculation

    Difference Between Coagulation and Flocculation

    2016-12-26· In contrast, in flocculation, the de-stabilization is brought about by physical techniques such as mixing of the solution, and also sometimes by the addition of polymers. This is the key difference between coagulation and flocculation. 1. What is a Colloidal Suspension Definition, Properties, Process. 2. What is a Coagulation

  • understanding two-step polymer flocculation of oil sands

    Understanding Two-step Polymer Flocculation of Oil Sands

    efficiency. This improved flocculation performance is attributed to combined flocculation effects induced by bridging effect of the anionic polymer and charge neutralization of cationic polymer. The replacement of chitosan by a synthesized temperature responsive polymer, chitosan-g-PMEOMA (CgM), resulted in more water release and better

  • dynamics of polymer-induced hetero-flocculation

    Dynamics of polymer-induced hetero-flocculation

    It is shown that the flocculation state is only transient. This is explained by a redistribution of polymer between surfaces upon particle detachment, which leads to a re-stabilisation of the system. Simultaneous particle deposition, particle detachment and polymer transfer determine the apparent particle detachment rate. The detachment rate is

  • optimizing polymer-induced flocculation process to

    Optimizing Polymer-Induced Flocculation Process to

    Since discharge limits are becoming stricter for industrial wastes, there is an intensive search for efficient and economical methods of pollution reduction. The polymer-induced flocculation process is described as the suitable treatment method for wastewater highly polluted by reactive dyes. According to preliminary tests, in which many

  • mixing and compounding of polymers

    Mixing and Compounding of Polymers

    The internal volume fraction within the floc φ(r), at a local position r with respect to the center of mass, varies as φ∝rDf −3 where D f is the fractal dimension of the floc. Accordingly, the elastic shear modulus m, and the bulk modulus l, which vary with volume fraction as φn, will also depend on the position r within the floc

  • dynamics of polymer-induced hetro-flocculation

    Dynamics of polymer-induced hetro-flocculation

    Garnier, G 2000, ' Dynamics of polymer-induced hetro-flocculation of wood fibres and fines ', Colloids and Surfaces, vol. 174, no. 3, pp. 297 306. Dynamics of polymer-induced hetro-flocculation of

  • depletion force

    Depletion force

    A depletion force is an effective attractive force that arises between large colloidal particles that are suspended in a dilute solution of depletants, which are smaller solutes that are preferentially excluded from the vicinity of the large particles. One of the earliest reports of depletion forces that lead to particle coagulation is that of Bondy, who observed the separation or 'creaming

  • downstream processing of biopharmaceutical proteins

    Downstream processing of biopharmaceutical proteins

    2014-03-01· Importantly, these properties can also affect the recovery of the target protein and the overall safety profile of the process. We therefore used a design of experiments approach to establish reliable predictive models that characterize the impact of flocculants during the downstream processing of biopharmaceutical proteins. We highlight

  • strong fluorescence of poly(n‐vinylpyrrolidone) and its

    Strong Fluorescence of Poly(N‐vinylpyrrolidone) and Its

    2014-11-25· The much stronger fluorescence of the polymers compared to the corresponding small molecular compounds is ascribed to the “aggregation‐induced emission” (AIE) effect of the luminophores. PVP and its oxidized hydrolyzate also show some phenomena different to the common AIE effect. The fluorescence of PVP and its oxidized hydrolyzate shows

  • polymer soil stabilization

    Polymer soil stabilization

    Polymer soil stabilization refers to the addition of polymers to improve the physical properties of soils, most often for geotechnical engineering, construction, or agricultural projects. Even at very small concentrations within soils, various polymers have been shown to increase water retention and reduce erosion, increase soil shear strength, and support soil structure.

  • bridging flocculation by polymers jstage.jst.go.jp

    Bridging Flocculation by Polymers jstage.jst.go.jp

    Polymer-induced flocculation typically proceeds through one or other of two basic mechanisms: charge-patch interaction1) or particle bridging2, 3). Charge-patch interaction results from the adsorption of, usually relatively low molecular weight, polyelec-trolyte molecules on oppositely charged particle sur- faces. These create a “patch” on the surface that is electrostatically attracted to

  • transient behaviour of polymer-induced flocculation

    Transient behaviour of polymer-induced flocculation

    The transient behaviour of polymer-induced flocculation is examined theoretically. The present study, which takes the collision efficiency into account, is an extension of the conventional analysis. Here, the kinetics of the adsorption of polymer molecules onto the surfaces of colloidal particles are incorporated i

  • the sticking probability of colloidal particles in polymer

    The sticking probability of colloidal particles in polymer

    Abstract. The interaction between colloidal particles in a solution containing polymer molecules is examined theoretically. In particular, the sticking probability of colloidal particles, which plays a significant role in the determination of the collision efficiency of an

  • macsphere: a study on polymer-induced flocculation

    MacSphere: A Study on Polymer-induced Flocculation

    Please use this identifier to cite or link to this item: hdl.handle.net/11375/22234

  • polyacrylamide degradation and its implications

    Polyacrylamide degradation and its implications

    The flocculation and adsorption capacity increase with increasing MW due to the greater number of binding sites. 13 However, polymer molecules with a MW greater than around 18 × 10 6 Da are more

  • depletion interaction; brief explanation youtube

    depletion interaction; brief explanation YouTube

    2014-05-26· Brief explanation of the depletion interaction between colloidal particles induced in a solution containing nonadsorbing polymers by Remco Tuinier. Find a much deeper treatment of the subject in

  • yasarla google scholar citations

    Yasarla Google Scholar Citations

    This "Cited by" count includes citations to the following articles in Scholar. The ones marked * may be different from the article in the profile.

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