• 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.

  • preparation of cellulose-base amphoteric flocculant

    Preparation of cellulose-base amphoteric flocculant

    An amphoteric flocculant, MCC(pAA-co-pDMC) was synthesized through an environmental friendly process. Methacryloxyethyltrimethyl ammonium chloride (DMC) and acrylic acid (AA) were grafted onto the skeleton of microcrystalline cellulose (MCC) in NaOH/urea homogeneous system.

  • 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

  • flocculation properties of biodegradable amphoteric

    Flocculation properties of biodegradable amphoteric

    2011-08-01· In the current work, a kind of amphoteric chitosan-based flocculants (3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CTA) modified carboxymethyl chitosan, denoted as CMC-CTA) have been prepared. CTA is a kind of low toxic quaternary ammonium reagents. The flocculation properties of CMC-CTA were studied systematically both at the

  • flocculation properties of biodegradable amphoteric

    Flocculation properties of biodegradable amphoteric

    Flocculation properties of biodegradable amphoteric chitosan-based flocculants Article in Chemical Engineering Journal 172(1):287-295 · August 2011 with 161 Reads How we measure 'reads'

  • 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

  • preparation of cellulose-base amphoteric flocculant

    Preparation of cellulose-base amphoteric flocculant

    Request PDF Preparation of cellulose-base amphoteric flocculant and its application in the treatment of wastewater An amphoteric flocculant, MCC(pAA-co-pDMC) was synthesized through an

  • preparation of cellulose-base amphoteric flocculant

    Preparation of cellulose-base amphoteric flocculant

    An amphoteric flocculant, MCC(pAA-co-pDMC) was synthesized through an environmental friendly process. Methacryloxyethyltrimethyl ammonium chloride (DMC) and acrylic acid (AA) were grafted onto the skeleton of microcrystalline cellulose (MCC) in NaOH/urea homogeneous system. Orthogonal tests were carried out to achieve the optimal conditions of

  • preparation, structural characterization, and flocculation

    Preparation, structural characterization, and flocculation

    In addition, several polysaccharide-based amphoteric flocculants, including cellulose,chitosan,, amylopectin,glycogen,guar gum,starch,, and tamarind kernel polysaccharides,have been reported as efficient flocculants for the treatment of industrial wastewater and synthetic effluents. The excellent flocculation performance

  • preparation and flocculation performance study of a novel

    Preparation and flocculation performance study of a novel

    Yang synthesized amphoteric flocculants based on chitosan, and studied the flocculation properties for kaolin in simulated and actual wastewater of the Yangtze River . Lin prepared amphoteric flocculants using starch as a raw material, and carried out flocculation experiments treating wastewater containing methyl violet and Pb 2+ .

  • zhen yang researchgate

    ZHEN YANG 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 polymer

  • 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

  • cn105692847a method for recycling unreacted

    CN105692847A Method for recycling unreacted

    The invention discloses a method for recycling unreacted monomers in a cellulose-base flocculation material synthesis process. The method is characterized in that gauze filtration and Buchner funnel vacuum filtration are utilized to separate the unreacted monomers, a weighing process is utilized to detect the absolute dry mass of the unreacted monomer, a right amount of polyacrylamide is

  • cationic cellulose nanocrystals (cncs) for organic

    Cationic Cellulose Nanocrystals (CNCs) for Organic

    Cellulose nanocrystals were modified for use as novel flocculants by taking advantage of the extended cationic polymeric chains on CNCs. They were evaluated using both organic colloids and inorganic bentonite clay particles. For the flocculation of organic colloids, cellulose nanocrystals (CNCs) were grafted with N-N-(dimethylamino) ethyl methacrylate (DMAEMA), 4-vinylpyridine (4VP) and

  • cn1089727c method for preparing cation/amphoteric

    CN1089727C Method for preparing cation/amphoteric

    The present invention discloses a process for preparing cationic / amphoteric grafted polyacrylamide flocculant, characterized in that the starch or microcrystalline cellulose as a skeleton, potassium permanganate as initiator, graft copolymerization with acrylamide, made of starch or microcrystalline cellulose graft copolymers with acrylamide, by hydrolysis and reacted with an alkyl amino

  • synthesis of an amphoteric chitosan-based flocculant

    Synthesis of an amphoteric chitosan-based flocculant

    References. S. Hussain, J. Awad, B. Sarkar, C.W.K. Chow, J.M. Duan, J. van Leeuwen, Coagulation of dissolved organic matter in surface water by novel titanium (III

  • 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.

  • synthesis and characterization of cyclodextrin-based

    Synthesis and characterization of cyclodextrin-based

    A novel hydrophobic and cationic cyclodextrin-based acrylamide flocculant (AM-β-CD-DMDAAC) was prepared by chemical oxidative polymerization to adsorb water-soluble dyes in dye wastewater. Fourier

  • synthesis and characterization of cyclodextrin-based

    Synthesis and characterization of cyclodextrin-based

    When flocculant concentration is higher than the OFC, the excess flocculant will form clathrate compound on the surface of dye molecules or formed flocs, which reduces the bridging effect between the flocculant and dye anions, resulting in weakening of the flocculation effect.

  • 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.

  • 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.

  • kaunas university of technology edita lekniut Ė-kyzik Ė

    KAUNAS UNIVERSITY OF TECHNOLOGY EDITA LEKNIUT Ė-KYZIK Ė

    flocculants are not degradable and remain in purified water, treated sludge and hereby complicates its further processing and use. In addition, using the synthetic flocculants, optimal and reliable phase separation takes place in a narrow minimum and maximum effective flocculant dose interval, also called the flocculation window.

  • flocculant and coagulant market by type (flocculant

    Flocculant and Coagulant Market by Type (Flocculant

    Stringent environment and water resources protection laws and declining freshwater resources are the key factors fueling the growth of the flocculant and coagulant market The global flocculant and coagulant market is projected to reach USD 6.01 billion by 2022, at a CAGR of 5.9% from 2017 to 2022. Stricter water resource protection and

  • dr. zhen wang, md san francisco, ca radiology

    Dr. Zhen Wang, MD San Francisco, CA Radiology

    Preparation of cellulose-base amphoteric flocculant and its application in the treatment of wastewater. Wang, Z.,Huang, W.,Yang, G.,Liu, Y.,Liu, S.> ;Carbohydr Polym. 2019 Apr 15 A Systematic Review and Network Meta-Analysis of Regorafenib and TAS-102 in Refractory Metastatic Colorectal Cancer.

  • selection of flocculant in sludge thicken

    SELECTION of FLOCCULANT in SLUDGE THICKEN

    Then the effects of the sludge dewatering targets were discussed. Employing the organic macromolecule flocculants to pretreat the sludge,which is a simple but effective method applied widely,can greatly increase the sludge dewatering ability and then make the sludge lose a great deal of liquid in the subsequent mechanical dewatering process

  • amphoteric flocculant for tailing waste water treatment

    Amphoteric flocculant for tailing waste water treatment

    Construction & Real Estate. Aluminum Composite Panels Balustrades & Handrails Bathroom Boards Building Glass Ceilings Corner Guards Countertops,Vanity Tops & Table Tops Curtain Walls & Accessories Decorative Films Doors & Windows Doors & Windows Accessories Earthwork Products Elevators & Elevator Parts Escalators & Escalator Parts Faucets,Mixers & Taps Fireplaces,Stoves

  • water clarifiers market by type (flocculants, organic

    Water Clarifiers Market by Type (Flocculants, Organic

    The Global Water Clarifiers Market is Estimated to Reach USD 7.43 Billion by 2022, at a CAGR of 6.6% from USD 5.39 Billion in 2017

  • sgupta.min indian institute of technology(bhu)

    sgupta.min Indian Institute of Technology(BHU)

    Sethi Rabindra, Karmakar N.C. and Gupta Suprakash, Effect of polymeric flocculants on settling behaviour of real-life coal washery effluents in the proceeding of Present Technology and Safety Scenario in Mining and Allied Industries February 25-27, 2013, Varanasi, India, pp 229-234.

  • cationic cellulose betainate for wastewater treatment

    Cationic cellulose betainate for wastewater treatment

    High molecular-weight, cationic and water-soluble cellulose-based polyelectrolytes were synthesized and their performance in water purification was tested. Dissolving pulp samples were acylated with chlorobetainyl chloride in dimethylacetamide/lithium chloride to obtain betaine esters of cellulose (cellulose betainates). A series of application tests was carried out with samples of different

  • x‐ray photoelectron spectroscopy and time‐of‐flight

    X‐ray photoelectron spectroscopy and time‐of‐flight

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

  • new approach for single-step extraction of carboxylated

    New Approach for Single-Step Extraction of Carboxylated

    A simple approach was developed to isolate cellulose nanocrystals (CNCs) with carboxylic groups from microcrystalline cellulose (MCC). The effect of reaction time on the morphology, microstructure, and thermal stability of isolated CNCs was investigated. The rod-like CNCs with size of 200–250 nm in length and about 15–20 nm in width were obtained by one-step citric/hydrochloric acid

  • sensitivity of three activated partial thromboplastin time

    Sensitivity of Three Activated Partial Thromboplastin Time

    Abstract. Three activated partial thromboplastin time (APTT) reagent test systems, General Diagnostics Automated APTT ®, American Dade Actin FS ®, and Pacific Hemostasis ® (Thromboscreen KAPTT ®) reagent, containing different activators for the APTT assay, were evaluated for their precision and sensitivity to factor deficiencies in the intrinsic coagulation system.

  • curriculum vitae indian institute of technology

    Curriculum Vitae Indian Institute of Technology

    2 APC Ray Memorial Award, RA2M 2018, Given by Indian Chemical Society, Kolkata (August, 2018). Visiting Professor, National Centre for Nanostructured Materials, Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa (June, 2017). DAAD Fellow, University of Siegen, Germany (2012). Fellow, Indian Chemical Society (F / 6955).

  • dr. sagar pal

    Dr. Sagar Pal

    Graft copolymeric flocculant using functionalized starch towards treatment of blast furnace effluent. Puja Das Karmakar, Venkata Sundeep Seesala, Aniruddha Pal, Santanu Dhara, Soumit Chatterjee and Sagar Pal *.Journal of Polymer Science Part A- Polymer Chemistry, 56, 2354-2363, 2018.

  • cationic or amphoteric copolymers prepared in an

    Cationic or amphoteric copolymers prepared in an

    2008-07-08· Cationic or amphoteric copolymers prepared in an inverse emulsion matrix and their use in preparing cellulosic fiber compositions . United States Patent 7396874 . Abstract: A papermaking method and a composition which utilize, as a drainage aid, a water-soluble cationic or amphoteric copolymer prepared via a water-in-oil polymerization technique that, absent a cross-linking agent, is

  • preparation of o-carboxymethyl-n-trimethyl chitosan

    Preparation of O-carboxymethyl-N-trimethyl chitosan

    Preparation of O-carboxymethyl-N-trimethyl chitosan chloride and flocculation of the wastewater in sugar refinery. код для вставки

  • new insights into how the human brain solves complex

    New insights into how the human brain solves complex

    2020-01-30· To enhance the flocculating efficiency, simplify the synthetic process of the flocculants and expand the application scope of alginate, a novel amphoteric flocculant was synthesized through reaction of alginate with 3-chloro-2-hydroxypropyltrimethyl ammonium chloride under alkaline conditi...

  • ziwen jiang, ph.d. google scholar citations

    Ziwen Jiang, Ph.D. Google Scholar Citations

    Flocculation of both anionic and cationic dyes in aqueous solutions by the amphoteric grafting flocculant carboxymethyl chitosan-< i> graft</i>-polyacrylamide Z

  • 2018 abridged cv for lee douglas wilson

    2018 Abridged CV for Lee Douglas Wilson

    Assistant Professor, Tenured, May 2004 to June 2012, Department of Chemistry Associate Professor, Tenured, July 2012 to Present, Department of Chemistry 4. HONOURS (MEDALS, FELLOWSHIPS, and PRIZES) Graduate Teaching Fellowship, University of Saskatchewan, 1993-1997 Johannson Scholarship, University of Saskatchewan, 1996

  • study on the shrinkable behavior of petg/pet blending

    Study on the Shrinkable Behavior of PETG/PET Blending

    This paper has studied heat shrinkable behaviors of PETG/PET blending film under different blending ratio. The shrink curve, shrink force, film structure and film seaming property were studied by use of electron stretcher, SEM, shrink force tester, shrinkage tester and so on. The results indicated that PETG/PET blending film had uniform internal structure, single melting point which increased

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