• preparation and flocculation performance study of a novel

    Preparation and flocculation performance study of a novel

    Novel amphoteric nano-flocculants were prepared through modification of alginate. • The flocculants had high removal rates for Pb 2+ and humic acid. • Chelation and electrostatic interaction mechanisms were involved for both pollutants. • Adsorption kinetics accorded with a quasi-second-order model. •

  • amphoteric polymer & polyacrylamide

    Amphoteric Polymer & Polyacrylamide

    Amphoteric polyacrylamide also called zwitterionic polyacrylamide or dipolar ionic polyacrylamide. The molecular chain of the amphoteric flocculant has two or more functional groups, of which have at least one anionic charge and one cationic charge.

  • new amphoteric flocculant containing beta-cyclodextrin

    New amphoteric flocculant containing beta-cyclodextrin

    2010-01-15· New amphoteric flocculant containing beta-cyclodextrin, synthesis, charaterization and decolorization properties Author links open overlay panel Xue Jiang Yuanjing Qi

  • research on a novel amphoteric polymeric flocculant

    Research on a Novel Amphoteric Polymeric Flocculant

    The effect of a novel amphoteric polymeric flocculant, p (DMC/NVP/FA), was investigated in processing dyeing wastewater. The optimum for flocculant dosage was 55mg/L, and one for pH was 5. Under the optimum conditions, the intrinsic viscosity of flocculant and the removal rates of CODcr and chroma reached the top (274.425dL/g, 80.1%, 92.6% ) .

  • synthesis of a novel amphoteric chelating polymer

    Synthesis of a novel amphoteric chelating polymer

    Synthesis of a novel amphoteric chelating polymer flocculant and its performance in Cu Article in Journal of Applied Polymer Science 127(3) · February 2013 with 26 Reads How we measure 'reads'

  • synthesis of a novel amphoteric chelating polymer

    Synthesis of a novel amphoteric chelating polymer

    Synthesis of a novel amphoteric chelating polymer flocculant and its performance in Cu 2+ removal Lihua Liu. Corresponding Author. E-mail address: [email protected] Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education and Hunan Province, Hunan Province College Key Laboratory of QSAR/QSPR, School of Chemistry and Chemical Engineering, Hunan

  • amphoteric amylopectin: a novel polymeric flocculant

    Amphoteric amylopectin: a novel polymeric flocculant

    Novel flocculant based on amphoteric amylopectin for wastewater and industrial effluents treatment has been developed in authors' laboratory. Amphoteric flocculants have anionic and cationic moieties on the same macromolecule and is used to remove both positively and negatively charged contaminant particles in suspensions. Amylopectin based

  • amphoteric amylopectin: a novel polymeric flocculant

    Amphoteric amylopectin: A novel polymeric flocculant

    Amphoteric flocculants have anionic and cationic moieties on the same macromolecule and is used to remove both positively and negatively charged contaminant particles in suspensions.Amylopectin based flocculants have been found to be highly efficient flocculant and hence it has been chosen as base polysaccharide. By grafting of polyacrylamide

  • phd nanjing normal university researchgate

    PhD Nanjing Normal University ResearchGate

    Dr. Zhen Yang currently works as an Associate professor at the School of Chemistry and Materials Science, Nanjing Normal University. Zhen does research mainly in the application of novel

  • zhen yang school of chemistry and materials science

    Zhen Yang School of Chemistry and Materials Science

    Evaluation of a novel chitosan-based flocculant with high flocculation performance, low toxicity and good floc properties. Journal of Hazardous Materials, 2014, 276, 480-488 11) Z Yang, JR Degorce-Dumas, H Yang, E Guibal, A Li, R Cheng. Flocculation of Escherichia Coli using a quaternary ammonium salt grafted carboxymethyl chitosan flocculant.

  • amphoteric amylopectin: a novel polymeric flocculant.

    Amphoteric amylopectin: a novel polymeric flocculant.

    Novel flocculant based on amphoteric amylopectin for wastewater and industrial effluents treatment has been developed in authors' laboratory. Amphoteric flocculants have anionic and cationic moieties on the same macromolecule and is used to remove both positively and negatively charged contaminant particles in suspensions. Amylopectin based

  • synthesis and characterization of a novel terpolymer

    Synthesis and characterization of a novel terpolymer

    Free Online Library: Synthesis and characterization of a novel terpolymer and the effect of its amphoteric property on the sludge flocculation.(Report) by "Polymer Engineering and Science"; Engineering and manufacturing Science and technology, general Ammonium compounds Analysis Chemical properties Ammonium paratungstate Ammonium salts Chemical synthesis Copolymers Sludge

  • amphoteric amylopectin: a novel polymeric flocculant

    Amphoteric amylopectin: A novel polymeric flocculant

    2013-01-02· Read "Amphoteric amylopectin: A novel polymeric flocculant, Carbohydrate Polymers" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • evaluation of the flocculation performance of deepdyve

    Evaluation of the flocculation performance of DeepDyve

    2012-01-01· Read "Evaluation of the flocculation performance of carboxymethyl chitosan- graft -polyacrylamide, a novel amphoteric chemically bonded composite flocculant, Water Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • preparation of novel amphoteric flocculant and its

    Preparation of Novel Amphoteric Flocculant and Its

    Preparation of Novel Amphoteric Flocculant and Its Application in Oilfield Water Treatment Authors Hui Song (Daqing An amphoteric starch-graft-polyacrylamide (S-g-PAM) was prepared by inverse emulsion polymerization, subsequent hydrolysis reaction and Mannich reaction. The effects of reaction conditions on copolymerization and the use of the polymer as the water clarifier in oilfield water

  • evaluation of the flocculation performance

    Evaluation of the flocculation performance

    2012-01-01· In the present work, a novel amphoteric chemically bonded composite flocculant (carboxymethyl chitosan-graft-polyacrylamide, denoted as CMC-g-PAM) was successfully prepared and used to flocculate the kaolin suspension. The flocculation performance of CMC-g-PAM in acidic, neutral, and alkaline conditions was systematically evaluated by light

  • amphoteric amylopectin- a novel flocculant

    AMPHOTERIC AMYLOPECTIN- A NOVEL FLOCCULANT

    Amphoteric flocculants are used to remove both positively and negatively charged contaminant particles in suspensions. A novel amphoteric flocculant has been developed in authors’ laboratory by grafting both anionic and cationic moiety on amylopectin backbone 1. By grafting of polyacrylamide and subsequent hydrolysis, anionic

  • synthesis, characterization and application of novel

    Synthesis, characterization and application of novel

    Three different grades of novel cationic flocculants (AP-g-C 1 to AP-g-C 3) were synthesized by varying the proportion of acrylamide and (3-acrylamidopropyl) trimethylammonium chloride monomers. Through the hydrolysis of these flocculants, in presence of NaOH, three different grades of amphoteric polymers (AP-AT-C 1 to AP-AT-C 3) were

  • flocculant scientific.net

    Flocculant Scientific.Net

    Abstract: The chemical oxygen demand (COD) in tannery wastewater was treated by prepared flocculant at different conditions. The results showed that the most suitable reaction conditions were attained at a temperature of 25°C, pH of 8, flocculant of 0.2 g/L when the shaking speed of 150 r/min and the reaction time was 15 min.

  • synthesis, properties and performance of organic polymers

    Synthesis, properties and performance of organic polymers

    The addition of a polymeric flocculant allows for the destabilization of suspended colloidal particles, and thus significantly increases their sedimentation rate. Polymeric flocculants are generally divided into four categories, which include non-ionic, cationic, anionic, and amphoteric polymers. This minireview article summarises important

  • synthesis, characterization and application of novel

    Synthesis, characterization and application of novel

    Three different grades of novel cationic flocculants (AP-g-C 1 to AP-g-C 3) were synthesized by varying the proportion of acrylamide and (3-acrylamidopropyl) trimethylammonium chloride monomers. Through the hydrolysis of these flocculants, in presence of NaOH, three different grades of amphoteric polymers (AP-AT-C 1 to AP-AT-C 3) were

  • synthesis and application of salt tolerance amphoteric

    Synthesis and application of salt tolerance amphoteric

    2014-09-30· The results elaborate that the flocculation performances of amphoteric hydrophobic-associating AAB flocculants are better than that of commercial flocculants (cationic and anionic polyacrylamide) and homemade cationic flocculant (AAB-0-5) independent of the type and concentration of salt. The novel ampholyteric hydrophobic-associative flocculants will exhibit intriguing prospective

  • novel immobilization method of saccharomyces

    NOVEL IMMOBILIZATION METHOD OF SACCHAROMYCES

    was to immobilize cells by developing a novel immobilization through the cells trapping in flocs using the grafted flocculants,i.e., Polyacrylamide Grafted Starch (St-g-PAM). This method was applied to trap the cell of accharomyces S cerevisiae in a certain concentration of molasses solution (substrate). The ability

  • synthesis, properties and performance of novel organic

    Synthesis, properties and performance of novel organic

    The addition of a polymeric flocculant allows for the destabilization of suspended colloidal particles, and thus significantly increases their sedimentation rate. Polymeric flocculants are generally divided into four categories, which include non-ionic, cationic, anionic, and amphoteric polymers. This minireview article summarises important

  • preparation and characterization of amphoteric cellulose

    Preparation and Characterization of Amphoteric Cellulose

    a cationic flocculant for negatively charged molecules. Also, the CAms for which the DS C was more than the DS A could flocculate negatively charged molecules in neutral and alkaline solutions as well. In this study, as shown in Figure 1, novel amphoteric hydrogels were prepared from a series of CAms having different DS C

  • evaluation of structural effects on the flocculation

    Evaluation of structural effects on the flocculation

    The flocculation mechanisms of this starch-based flocculant were discussed in detail on the basis of the structure-activity relationship, which are significant to optimize the flocculation conditions and guide the development of novel high-performance flocculants.

  • csiro publishing environmental chemistry

    CSIRO PUBLISHING Environmental Chemistry

    Abstract. A coagulation-flocculation process was employed to remove turbidity (T i) and orthophosphate (P i) in aqueous media using a ferric chloride (FeCl 3) and a grafted carboxymethyl chitosan (CMC) flocculant system.The amphoteric CMC-CTA flocculant was synthesised by grafting 3-chloro-2-hydroxypropyl trimethylammonium chloride (CTA) onto the biopolymer backbone of CMC.

  • faculty of the department

    Faculty of the Department

    Professor Department of Mining Engineering IIT (BHU), Varanasi. 221005,Cationic and Nonionic Flocculants Based on Amphoteric Amylopectin for Mineral Industry Effluents & Municipal Waste Water Treatment” funded by DST, New Delhi ; Pressure Quantity Survey of Six underground Mines of Kathara, B & K, and Dhori areas of Central Coalfields Ltd.

  • the role of polymer in improving floc strength

    The Role of Polymer in Improving Floc Strength

    Dosing polymer to improve floc characteristics is a widely practiced method in water treatment to improve floc strength, and there is strong operational evidence showing the benefit of polymer dosing. However, there is a paucity of information on how polymer operates in terms of quantifying the resulting floc size and strength over different size scales. A dual particle sizing approach was

  • removal of cu and cr ions from aqueous solutions by a

    Removal of Cu and Cr ions from aqueous solutions by a

    References. H. Sone, B. Fugetsu, S. Tanaka, Selective elimination of lead(II) ions by alginate/polyurethane composite foams, J. Hazard. Mater., 162 (2009) 423–429.

  • cn102250291a ampholytic modified grafted starch

    CN102250291A Ampholytic modified grafted starch

    The invention discloses an ampholytic modified grafted starch flocculant. The flocculant is characterized in that the preparation method comprises the following steps: under the action of an initiator, starch is used to perform a grafting reaction with an acrylic or vinyl sulfonate monomer the mass of which is 0.05-5 times that of starch to obtain an anionic starch graft polymer, and then the

  • jun wu's research works hunan university of science

    Jun Wu's research works Hunan University of Science

    Jun Wu's 3 research works with 50 citations and 59 reads, including: Synthesis of a novel amphoteric chelating polymer flocculant and its performance in Cu

  • jph0231899a method for dehydrating sludge google

    JPH0231899A Method for dehydrating sludge Google

    PURPOSE: To increase the size and strength of aggregated flocks, to reduce the water content of a cake and to facilitate removal from filter cloth by adding an amphoteric polymer flocculant and a cationic acrylate polymer flocculant to org. sludge of a specified pH and dehydrating the sludge. CONSTITUTION: An amphoteric polymer flocculant contg. anionic carboxyl (salt) groups, cationic

  • polyacrylaminde flocculant raw mediael

    polyacrylaminde flocculant raw mediael

    Nonionic Polyacrylamide Flocculant Sinoloc Supplier. This product could also be used as soil moisturizer and the basic raw materials for various modified polyacrylamide. Why is Polyacrylamide Used as Flocculants? Polyacrylamide is most commonly used as flocculants, abbreviated as PAM. Flocculants is the linear polymer. Besides polyacrylamide

  • evaluation of the flocculation performance of deepdyve

    Evaluation of the flocculation performance of DeepDyve

    2012-01-01· Read "Evaluation of the flocculation performance of carboxymethyl chitosan- graft -polyacrylamide, a novel amphoteric chemically bonded composite flocculant, Water Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • study of synthesis and flocculation properties of new

    Study of Synthesis and Flocculation Properties of New

    The selection of flocculant is the key to the treatment of sewage by the flocculation sedimentation method [3, 9, 10]. According to chemical composition, flocculant can be divided into three categories: inorganic flocculant, organic flocculant, and microbial flocculant [11–14].

  • synthesis of a novel amphoteric chelating polymer

    Synthesis of a novel amphoteric chelating polymer

    Previous article in issue: Synthesis of epoxy resin–silica nanocomposites provided from perhydropolysilazane as a curing reagent and the precursor of silica domain

  • preparation and characterization of amphoteric cellulose

    Preparation and Characterization of Amphoteric Cellulose

    a cationic flocculant for negatively charged molecules. Also, the CAms for which the DS C was more than the DS A could flocculate negatively charged molecules in neutral and alkaline solutions as well. In this study, as shown in Figure 1, novel amphoteric hydrogels were prepared from a series of CAms having different DS C

  • hu yang's livedna profile

    Hu Yang's LiveDNA Profile

    Dr. Hu Yang is currently working as Professor at Nanjing University, China. He has completed his Ph.D. in Environmental Engineering from same University and Postdoctoral Fellow at Institute for Chemical Research of Kyoto University in Japan.

  • removal of cu and cr ions from aqueous solutions by a

    Removal of Cu and Cr ions from aqueous solutions by a

    References. H. Sone, B. Fugetsu, S. Tanaka, Selective elimination of lead(II) ions by alginate/polyurethane composite foams, J. Hazard. Mater., 162 (2009) 423–429.

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