• flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived

    The flocculation performance of CDACs and CPAM in the pH range of 3–11 is presented in Fig. 4. The flocculation performance maintained a constant level at pH ⩽8.5. Also, the results show that the good flocculation activity of the CDACs was dramatically decreased at an alkaline pH (>9). For CDAC IV this decline could be discerned at a pH

  • flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived from a cellulosic source in mild aqueous solution Article in Bioresource Technology 102(20):9626-32 · August 2011 with 223 Reads

  • flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived

    The flocculation behavior of cationic, quaternary ammonium groups containing cellulosic biopolymers, CDACs, synthesized by cationizing dialdehyde cellulose in mild aqueous solution was studied in a kaolin suspension. In particular, the role of CDAC

  • flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived from a cellulosic source in mild aqueous solution

  • flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived

    2011-11-01· The measurements also indicated that the apparent CD decreased to a constant level of 3 mmol/g in aqueous solutions. However, no notable decrease in flocculation performance was obtained after several days of storage. Moreover, the variation of NaCl concentration and temperature did not affect the flocculation activity.

  • flocculation performance of a cationic biopolymer derived

    Flocculation performance of a cationic biopolymer derived

    2011-10-01· Read "Flocculation performance of a cationic biopolymer derived from a cellulosic source in mild aqueous solution, Bioresource Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • pro gradu anionic biopolymer derivatives and their

    PRO GRADU ANIONIC BIOPOLYMER DERIVATIVES AND THEIR

    Anionic biopolymer derivatives and their performance in flocculation Level Master of science Month and year October 2018 Number of pages 76 Abstract The aim of the thesis is to identify and test anionic biopolymer derivatives in flocculation application. Several potential polysaccharides are listed in literature, but chemical modification

  • effectiveness of biopolymer coagulants in agricultural

    Effectiveness of biopolymer coagulants in agricultural

    2019-02-04· The chemical coagulation and flocculation mechanisms (e.g. charge neutralization, bridge formation, electrostatic patch, precipitative coagulation) responsible for the differences in performance between the biopolymer coagulants [9, 11] should be addressed by further studies.

  • coagulation–flocculation treatment of municipal

    Coagulation–flocculation treatment of municipal

    The flocculation performance levels of five such anionic nanocelluloses with variable charge densities were examined in the coagulation–flocculation treatment of municipal waste water and the results compared with the performance of a commercial coagulant and a synthetic polymeric flocculant. In addition, the aldehyde and carboxyl content

  • (pdf) evaluation of the efficiency of bio-polymers derived

    (PDF) Evaluation of the Efficiency of Bio-Polymers Derived

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  • polymer vs flocculation what's the difference? wikidiff

    Polymer vs Flocculation What's the difference? WikiDiff

    As nouns the difference between polymer and flocculation is that polymer is (organic chemistry) a long or larger molecule consisting of a chain or network of many repeating units, formed by chemically bonding together many identical or similar small molecules called monomers a polymer is formed by polymerization, the joining of many monomer molecules while flocculation is...

  • cationic cellulosic derivatives as flocculants

    Cationic cellulosic derivatives as flocculants

    2017-04-28· The performance of these polyelectrolytes for the flocculation of mineral fillers used in papermaking was tested by laser diffraction spectrometry. The flocculant with the highest degree of polymerization and charge originated the best results, particularly when the filler used was kaolin, proving that water-soluble cationic cellulose

  • comparison of the efficiency of biopolymer derived

    Comparison of the efficiency of biopolymer derived

    Comparison of the efficiency of biopolymer derived from Melocactus sp and Aluminum Polichloride (PAC) in the process of crude water flocculation Ibarra Naileaa, Jaramillo Jhoanb, and Epalza Jesúsa a Universidad de Santander (UDES), Environmental Engineering, Bucaramanga, Colombia

  • chitosan biopolymer‐derived self‐powered triboelectric

    Chitosan biopolymer‐derived self‐powered triboelectric

    The performance and efficiency of such triboelectric sensors can be optimized by modulating the compositions and material properties through facile molecular surface engineering, which offers a potentially promising scheme for designing and implementing high‐performance biopolymer‐based TENGs for self‐powered nanosystems in sustainable

  • impact of ph variation on coag-flocculation behaviour

    Impact of pH Variation on Coag-flocculation Behaviour

    This work investigates the influence of pH variation on coag-flocculation kinetics and performance of Chitin Derived Coag-flocculant (CDC) in removal of Suspended and Dissolved Particles (SDP) from Coal washery effluent (CWE) medium. Key parameters such as rate constant Km, half life t1/2,, and pH etc. were investigated. The best coag-flocculation performance is recorded at Km, of 0.007 l/mg

  • the opportunity for high-performance biomaterials

    The Opportunity for High-Performance Biomaterials

    2016-02-03· An alternative strategy for biopolymer synthesis is to produce other types of biologically-derived monomers or oligomers from methane, which may be subsequently polymerised or synthetically-coupled to PHA or its derivatives into a material of choice. A current example is the production of lactic acid as a precursor for chemical synthesis

  • analysis and optimization of coagulation and flocculation

    Analysis and optimization of coagulation and flocculation

    Natural coagulants have been the focus of research of many investigators through the last decade owing to the problems caused by the chemical coagulants. Optimization of process parameters is vital for the effectiveness of coagulation process. In the present study optimization of parameters like pH, dose of coagulant and mixing speed were studied using natural coagulants sago and chitin in

  • biopolymer offers biodegradable alternative in water

    Biopolymer Offers Biodegradable Alternative in Water

    A relatively new biopolymer, chitosan (ky-toe-san), shows superior performance where many conventional polymers fail. It is a versatile polymer with applications in water treatment, biomedical and dietary supplement industries. Chitosan is made from chitin, which is a naturally occurring biopolymer derived from recycled crustacean shells, insect exoskeletons or fungi. Chitin is harvested from

  • polymers sustainable technologies evaluation

    Polymers Sustainable Technologies Evaluation

    Chitosan, a biopolymer derived from chitin, the structural element found in the exoskeleton of crustaceans and cell walls of fungi, has also seen widespread use in various water clarification applications. While several polymer product suppliers have demonstrated effective performance in various applications, questions regarding the human and environmental health risks of polymers have

  • mo2c nanoparticles decorated graphitic carbon sheets

    Mo2C Nanoparticles Decorated Graphitic Carbon Sheets

    The present work reports on the preparation of Mo2C nanoparticles decorated graphitic carbon sheets (Mo2C/GCSs) via a biopolymer-derived solid-state reaction between (NH4)6Mo7O24·4H2O and sodium alginate at 900 °C under Ar. As a novel hydrogen evolution reaction electrocatalytst, the Mo2C/GCSs hybrids exhibit high activity in acidic solutions with an onset potential of 120 mV, a Tafel slope

  • utilizing cellulose nanofibril as an eco-friendly

    Utilizing cellulose nanofibril as an eco-friendly

    "Utilizing cellulose nanofibril as an eco-friendly flocculant for filler flocculation in papermaking," BioRes. 11(4), 10296-10313. Abstract Cellulose nanofibril (CNF) is a type of nano-sized cellulosic material with a high aspect ratio and a large specific surface area, which makes it a promising additive to flocculate particles such as fillers.

  • impact of ph variation on coag-flocculation behaviour

    Impact of pH Variation on Coag-flocculation Behaviour

    This work investigates the influence of pH variation on coag-flocculation kinetics and performance of Chitin Derived Coag-flocculant (CDC) in removal of Suspended and Dissolved Particles (SDP) from Coal washery effluent (CWE) medium. Key parameters such as rate constant Km, half life t1/2,, and pH etc. were investigated. The best coag-flocculation performance is recorded at Km, of 0.007 l/mg

  • biopolymer production kinetics of mixed culture using

    Biopolymer Production Kinetics of Mixed Culture Using

    Biopolymer Production Kinetics of Mixed Culture Using Wastewater Sludge as a Raw Material and the Effect of Different Cations on Biopolymer Applications in Water and Wastewater Treatment. Water Environment Research, vol. 88,nº 5. p. 425-437. DOI: 10.2175/106143016X14504669768453.

  • properties and flocculation efficiency of cationized

    PROPERTIES AND FLOCCULATION EFFICIENCY OF CATIONIZED

    Kuutti et al. (2011). “Cationized biopolymer flocculants,” BioResources 6(3), 2836-2850. 2836 PROPERTIES AND FLOCCULATION EFFICIENCY OF CATIONIZED BIOPOLYMERS AND THEIR APPLICABILITY IN PAPERMAKING AND IN CONDITIONING OF PULP AND PAPER SLUDGE Lauri Kuutti,* Sanna Haavisto, Sari Hyvärinen, Hannu Mikkonen, Riikka Koski,

  • importance and applications of biopolymers

    IMPORTANCE AND APPLICATIONS OF BIOPOLYMERS

    2014-06-25· IMPORTANCE AND APPLICATIONS OF BIOPOLYMERS ARJUN K GOPI & SUHAIL K S M.Sc. Biopolymer Science CENTREFORBIOPOLYMERSCIENCEANDTECHNOLOGY(CBPST),KOCHI •Plastics

  • the scientific world journal hindawi

    The Scientific World Journal Hindawi

    It best performs at pH 5.0 and pH 6.0 with flocculating performance of above 90%. A much lower or higher pH would inhibit flocculation. Low dosage requirements were needed for both the cation and bioflocculant, with only an input of 50 mL/L for 0.1% (w/v) CaCl 2 and 5 mL/L for culture broth, respectively. These results are comparable to other

  • impact of ph variation on coag-flocculation behaviour

    Impact of pH Variation on Coag-flocculation Behaviour

    This work investigates the influence of pH variation on coag-flocculation kinetics and performance of Chitin Derived Coag-flocculant (CDC) in removal of Suspended and Dissolved Particles (SDP) from Coal washery effluent (CWE) medium. Key parameters such as rate constant K m,half life t1/2,, and pH etc. were investigated. The best coag-flocculation performance is recorded at K<sub>m</sub>, of

  • ijms free full-text investigation of self-assembly

    IJMS Free Full-Text Investigation of Self-Assembly

    Chitosan is an amine-based polysaccharide that fits both of these criteria because it is a readily available biopolymer derived via deacetylation of chitin, the second most abundant polysaccharide in nature after cellulose. Chitosan is a linear polysaccharide comprised of monomers of 2-amino-2-deoxy-d-glucose connected by α-1→4-linkages.

  • polymers sustainable technologies evaluation

    Polymers Sustainable Technologies Evaluation

    Chitosan, a biopolymer derived from chitin, the structural element found in the exoskeleton of crustaceans and cell walls of fungi, has also seen widespread use in various water clarification applications. While several polymer product suppliers have demonstrated effective performance in various applications, questions regarding the human and environmental health risks of polymers have

  • natureworks what is ingeo

    NatureWorks What is Ingeo

    NatureWorks manufactures Ingeo brand polylactic acid (PLA) and lactides, greenhouse gas-based materials used to manufacture plastics and fibers.

  • frontiers harvest of the oleaginous microalgae

    Frontiers Harvest of the Oleaginous Microalgae

    Biological flocculants are cells, cell wall components or biologically derived products, which can be used for flocculation. Commonly, the mechanism of flocculation is the same as for synthetic polymers as bio-derived flocculants are also cationic polymers, but lower dosages are necessary (Chen and Pan, 2012).

  • biopolymer production kinetics of mixed culture using

    Biopolymer Production Kinetics of Mixed Culture Using

    Biopolymer Production Kinetics of Mixed Culture Using Wastewater Sludge as a Raw Material and the Effect of Different Cations on Biopolymer Applications in Water and Wastewater Treatment. Water Environment Research, vol. 88,nº 5. p. 425-437. DOI: 10.2175/106143016X14504669768453.

  • 2,3,6-tricarboxylate cellulose as a fully biodegradable

    2,3,6-tricarboxylate cellulose as a fully biodegradable

    Full Article. 2,3,6-Tricarboxylate Cellulose as a Fully Biodegradable Flocculant: Efficient Synthesis and Flocculation Performance. Kexin Chen, a Weijun Lv, b, * Wei Chen, a Yifeng Wang, c Yong Zhang, a, * Xiumei Zhang, a and Juming Yao a Cellulose-based flocculants have shown excellent performance for wastewater flocculation, being low-cost and eco-friendly.

  • the scientific world journal hindawi

    The Scientific World Journal Hindawi

    It best performs at pH 5.0 and pH 6.0 with flocculating performance of above 90%. A much lower or higher pH would inhibit flocculation. Low dosage requirements were needed for both the cation and bioflocculant, with only an input of 50 mL/L for 0.1% (w/v) CaCl 2 and 5 mL/L for culture broth, respectively. These results are comparable to other

  • flocculation: processes and applications / avaxhome

    Flocculation: Processes and Applications / AvaxHome

    Flocculation: Processes and Applications Nova English 2019 ISBN-10: 1536143391 190 pages PDF 12.19 MB by Eleonora Vollan (Editor) This book opens by approaching current trends in preparation and chemical modification of flocculant polysaccharides derived from plants and their flocculation performance

  • flocculation performance of modified chitosan in an

    Flocculation performance of modified chitosan in an

    Flocculation of montmorillonite by some hydrophobically modified polycations containing quaternary ammonium salt groups in the backbone. pdf 114 Кб Flocculation studies based on water-soluble polymers of grafted carboxymethyl cellulose and polyacrylamide.

  • flocculation from rst environmental solutions ltd

    Flocculation from RST Environmental Solutions Ltd

    2013-04-14· In February 2013 RST Environmental Solutions was involved in a trial for dewatering involving the Haloklear Natural Biopolymer system. The RST 6" Dewatering Manifold was used in conjunction with

  • analysis and optimization of flocculation activity

    Analysis and optimization of flocculation activity

    The performance of pectin in turbidity reduction and the optimum condition were determined using Response Surface Methodology (RSM). The effect of pH, cation's concentration, and pectin's dosage on flocculating activity and turbidity reduction was investigated at three levels and optimized by using Box-Behnken Design (BBD). Coagulation and flocculation process were assessed with a standard jar

  • extraction and use of plant biopolymers for water

    Extraction and Use of Plant Biopolymers for Water

    The best performance of these tests lies in the Melocactus that was the best removing species in case of both turbidity and color, but with the highest incidence in the pH. The other biopolymer with high performance is the Kabuli chickpea (Cicer arietinum L.), which showed a good turbidity and color removal capacity with very little pH affectation.

  • chitosan biopolymer from fungal fermentation

    Chitosan Biopolymer from Fungal Fermentation

    Fungal Fermentation for Chitosan Production. Chitin is second only to cellulose as the most abundant biopolymer found in nature. Chitin and its derivative chitosan are naturally produced in fungi as the principal component of the cell walls. 2 Chitin and chitosan production in the cell wall is a complex biosynthetic process performed by different families of chitin synthase (CHS) enzymes.

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