• a review on chitosan-based flocculants and their

    A review on chitosan-based flocculants and their

    The influence of structural elements of the chitosan-based flocculants on their flocculation properties are emphasized in this review by examining different flocculation mechanisms and their applications in the treatment of various wastewaters containing different pollutants (insoluble suspended colloids but also dissolved matters). Above all, the chitosan-based flocculants with proper

  • flocculation of chitosan and the application in water

    Flocculation of Chitosan and the Application in Water

    2014-10-01· The Chitosan flocculant characteristics of natural, non-toxic, safe and have a good adsorption performance. This article briefly describes the physical properties and mechanism of flocculation of Chitosan, focuses on Chitosan flocculant in water treatment applications.

  • application of chitosan composite flocculant in tap water

    Application of Chitosan Composite Flocculant in Tap Water

    Experimental Results of Water Treatment with Composite Flocculation of Chitosan, Polyaluminum Chloride, and Modified Rectorite. In this section, based on the above experimental data and results, we designed experiments of treatment of the raw water of the tap water with the combination of chitosan, polyaluminum chloride, and modified rectorite as the composite flocculant. According to the cost

  • synthesis, characterization and application of acryloyl

    Synthesis, characterization and application of acryloyl

    Synthesis, characterization and application of acryloyl chitosan anchored copolymer towards algae flocculation Author links open overlay panel M. Dharani S. Balasubramanian Show more

  • application of a chitosan flocculant to water treatment

    Application of a chitosan flocculant to water treatment

    It is convenient to search for a more economical production pathway in order to make chitosan available for environmental applications, such as use in water suspended matter flocculation. Chitin

  • flocculation of chitosan and the application in water

    Flocculation of Chitosan and the Application in Water

    Download Citation Flocculation of Chitosan and the Application in Water Treatment The Chitosan flocculant characteristics of natural, non-toxic, safe and have a good adsorption performance.

  • a novel carboxyl-rich chitosan-based polymer and its

    A novel carboxyl-rich chitosan-based polymer and its

    The aims of this work were to prepare a chitosan-based polymer flocculant by ultraviolet-initiated graft copolymerization taking chitosan, acrylamide and itaconic acid as raw materials, and to evaluate the adsorption/flocculation performance in application of removing

  • flocculation efficiency of chitosan for papermaking

    Flocculation efficiency of chitosan for papermaking

    Full Article. Flocculation Efficiency of Chitosan for Papermaking Applications. Raluca Nicu, a Elena Bobu, a, * Ruben Miranda, b and Angeles Blanco b There is a large interest in bio-polymers as environment-friendly alternatives to synthetic additives in papermaking.

  • a review on chitosan-based flocculants and their

    A review on chitosan-based flocculants and their

    The influence of structural elements of the chitosan-based flocculants on their flocculation properties are emphasized in this review by examining different flocculation mechanisms and their applications in the treatment of various wastewaters containing different pollutants (insoluble suspended colloids but also dissolved matters). Above all

  • flocculation an overview sciencedirect topics

    Flocculation an overview ScienceDirect Topics

    Flocculation and precipitation could improve the clarification efficiency of centrifugation or microfiltration, and reduce the required depth filter area for high titer and high cell density cultures [20–24]. Flocculation has been widely implemented in the chemical and food industries, as well as in wastewater treatment.

  • application of chitin/chitosan and its derivatives

    Application of Chitin/Chitosan and Its Derivatives

    applications such as wastewater treatment, biomedical and textiles, the various forms of chitin and chitosan are discussed below. Chitin/Chitosan as Adsorbents, Coagulants, and Flocculants 457

  • preparation and application of a new composite chitosan

    Preparation and application of a new composite chitosan

    Download Citation Preparation and application of a new composite chitosan flocculant A new composite chitosan flocculant has been prepared, and its

  • (pdf) flocculation efficiency of chitosan

    (PDF) Flocculation Efficiency of Chitosan

    Flocculation Efficiency of Chitosan for Papermaking Applications . Article (PDF Available) in Bioresources 8(1):768-784 · February 2013 with 135 Reads

  • flocculation: processes and applications nova science

    Flocculation: Processes and Applications Nova Science

    This compilation also discusses current knowledge on algal organic matter (AOM) flocculation, the impact of AOM on the removal of other compounds and links AOM composition and character to the efficiency of flocculation, the reaction conditions and mechanisms and finally, to the properties of flocs.

  • applications of chitosan in wastewater treatment

    Applications of Chitosan in Wastewater Treatment

    In this chapter the research studies regarding the chitosan application in wastewater treatments as well as the preliminary results on its chemical modification to obtain and utilisation of zeolite-chitosan composites in adsorption of organic pollutants from industrial wastewaters are presented.

  • new route of chitosan extraction from blue crabs

    New route of chitosan extraction from blue crabs

    2017-12-12· The coagulation and flocculation in the area of water and wastewater treatment are the particular application of chitosan-based materials due to their low-cost and environmentally friendly behavior [4, 11, 13, 17, 19, 27, 28]. Chitosan possesses several intrinsic characteristics which make to suit as an effective coagulant and flocculant agent

  • fabrication of bifunctional chitosan-based flocculants

    Fabrication of Bifunctional Chitosan-Based Flocculants

    In this study, a series of chitosan-based quaternary ammonium graft flocculants, namely chitosan-graft-poly(acrylamide and methacryloyl ethyl trimethyl ammonium chloride) [CTS-g-P(AM-DMC)], was successfully synthesized by plasma initiation, and the as-prepared [CTS-g-P(AM-DMC)] had both flocculation and sterilization functions.Various characterization techniques were used to study the

  • the synthesis and application of photoinitiators chitosan

    The Synthesis and Application of Photoinitiators Chitosan

    Chitosan and acrylamide were used for graft reaction by photoinitiator, and flocculation performance of grafted product was also studied. In addition, the impact of the trigger system, reaction time and temperature on product performance were discussed in detail. Structure property of the product was characterized by infrared spectroscopy. It is found that the highest stem grafting rate of

  • chitosan as a drinking water treatment coagulant

    Chitosan as a Drinking Water Treatment Coagulant

    Chitosan was an effective coagulant in several prior laboratory studies. Practical application of chitosan as a drinking water treatment coagulant is evaluated here through a series of jar tests. The effectiveness of chitosan is compared to aluminum sulphate and ferric chloride with regard to treatment of algal-ladened waters. The optimum

  • coagulation and flocculation treatment of

    COAGULATION AND FLOCCULATION TREATMENT OF

    by using chitosan in coagulation and flocculation process. Therefore, this study was carried out to analyze the effect of chitosan in clarifying textile wastewater in flocculation process in different experimental conditions. The optimum pH, dosage and mixing time needed to achieve the best performance of chitosan in flocculation

  • what is coagulation/flocculation and chitosan-based

    What is coagulation/flocculation and chitosan-based

    2016-08-02· These properties endow chitosan with its good coagulation and flocculation performance due to efficient charge neutralization and bridging effects (Fig. 1). To further improve the performance of chitosan, various physically and chemically modified forms have been also synthesized and evaluated.

  • flocculation efficiency of chitosan for papermaking

    Flocculation Efficiency of Chitosan for Papermaking

    Flocculation Efficiency of Chitosan for Papermaking Applications There is a large interest in bio-polymers as environment-friendly alternatives to synthetic additives in papermaking. In this work, the behavior of three chitosans with different molecular weights and cationic charges were investigated as flocculation additives in papermaking on two systems: calcium carbonate (GCC) and pulp/GCC

  • application of chitosan composite flocculant in tap

    Application of Chitosan Composite Flocculant in Tap

    2018-01-01· Application of Chitosan Composite Flocculant in Tap Water Treatment. Link/Page Citation 1. Introduction Water is an irreplaceable resource that drives our lives. An adult human should drink 2 to 5 liters of water a day [1-3], and the quality of drinking water is essential for public health. The treatment of drinking water or tap water by flocculation is an important research direction. The

  • synthesis and application of chitosan-starch based

    Synthesis and Application of Chitosan-Starch Based

    Chitosan, Starch, Waste water treatment, Nanocomposite, Flocculation INTRODUCTION Green materials or biopolymers are under investigation for various applications. One very important biopolymer of special importance is chitosan (Mohanty et al., 2002). Chitosan is a deacetylation product of chitin, an abundant naturally occurring polysaccharide

  • synthesis and application of chitosan-starch based

    Synthesis and Application of Chitosan-Starch Based

    Synthesis and Application of Chitosan-Starch Based Nanocomposite in Wastewater Treatment for the Removal of Anionic Commercial Dyes Amtul Jamil Sami 1 *, Madeeha Khalid 1,Sara Iqbal 1,Maira Afzal 1 and A.R. Shakoori 2

  • chitosan

    Chitosan

    Chitosan has a rich history of being researched for applications in agriculture and horticulture dating back to the 1980s. By 1989, chitosan salt solutions were applied to crops for improved freeze protection or to crop seed for seed priming. Shortly thereafter, chitosan salt received the first ever biopesticide label from the EPA, then followed by other intellectual property applications.

  • flocculation of escherichia coli using a quaternary

    Flocculation of Escherichia coli Using a Quaternary

    A novel carboxyl-rich chitosan-based polymer and its application for clay flocculation and cationic dye removal. Science of The Total Environment 2018, 640-641, 107-115. DOI: 10.1016/j.scitotenv.2018.05.309. Moxi Wang, Li Feng, Xiaowei Fan, Dongmei Li, Wenqi Qu, Shuxian Jiang, Shaoxiu Li.

  • chitosan for wastewater treatment desbrières 2018

    Chitosan for wastewater treatment Desbrières 2018

    2017-08-26· Chitosan (an amino‐polysaccharide obtained from deacetylation of chitin, the major constituent of crustaceous shells and insect cuticles) presents a cationic character in acidic media allowing its dissolution, its shaping and possible ion‐exchange interactions with anionic compounds (a property applied in adsorption and coagulation–flocculation processes).

  • recent advancement of coagulation–flocculation and its

    Recent Advancement of Coagulation–Flocculation and Its

    Coagulation–flocculation process is regarded as one of the most important and widely used treatment processes of industrial wastewaters due to its simplicity and effectiveness. This paper provides a critical review on recent studies of coagulation–flocculation treatment processes of various industrial wastewaters. The limitations and

  • application of chitosan composite flocculant in tap

    Application of Chitosan Composite Flocculant in Tap

    The chitosan is a good flocculant for tap water treatment because of its properties such as faster deposition rate and higher removal efficiency for COD (organic matter), SS (suspended solids), and metal ions. However, its high price limits the use in tap water treatment. In this paper, in order to reduce costs, chitosan (CTS), polyaluminum chloride (CF-PAC), and modified rectorite (Al(OH)3 &#

  • coagulation, flocculation and clarification of drinking water

    Coagulation, Flocculation and Clarification of Drinking Water

    Coagulation, Flocculation and Clarification of Drinking Water Terry L. Engelhardt Application Development Manager Drinking Water Hach Company Photo by author The intent of this paper is to provide cursory information about coagulation, flocculation and clarification. This knowledge will provide a basis for understanding the needs of the

  • a review on chitosan-based flocculants and their

    A review on chitosan-based flocculants and their

    2016-05-15· The influence of structural elements of the chitosan-based flocculants on their flocculation properties are emphasized in this review by examining different flocculation mechanisms and their applications in the treatment of various wastewaters containing different pollutants (insoluble suspended colloids but also dissolved matters). Above all

  • application of organic coagulants in water

    Application of Organic Coagulants in Water

    Chitosan, like most natural polymers, is toxic free which makes them generally acceptable on health grounds. The use of chitosan in water purification applications has been referenced to decolorizing dye house effluents, the treatment of food-processing wastes, metal ion removal and sludge conditioning.

  • preparation of strong cationic chitosan-graft

    Preparation of Strong Cationic Chitosan-graft

    It was indicated that chitosan-CTA-g-PAM with higher cationic degree had better flocculating performances, which was also confirmed by the flocculation kinetics analysis. Furthermore, the flocculation mechanisms of chitosan-CTA-g-PAM have been discussed in detail. Above all, the flocculating experiments in laboratory and pilot scales both

  • preparation and application of an low-aluminium tap water

    Preparation and Application of an Low-Aluminium Tap Water

    culants [5-8] such as starch, chitosan, lignin, protein, algae, etc. Molecular structure of chitosan is linear type [9]. The typical cationic chitosan flocculants were related to the protonation of a large amount of amino group in acid solutions [10]. There is a wide application prospect on montmorillonite in the field of water treatment because

  • harvesting of microalgae using chitosan-alginate dual

    Harvesting of microalgae using chitosan-alginate dual

    to evaluate the dual application of chitosan and sodium alginate biopolymers for harvesting Scenedesmus obliquus. The effect of cultural pH on flocculation efficiency for the microalgae in dual flocculation system has been studied. MATERIALS AND

  • cn104556404a chitosan-contained biologically

    CN104556404A Chitosan-contained biologically

    The invention provides a compounded flocculant which comprises a microbial flocculant and ternary grafted and modified chitosan, wherein the microbial flocculant is generated by Pseudomonas sp. FL-1 and is preserved at the CGMCC (China General Microbiological Culture Collection Center), and the preservation number is CGMCC NO.9379. The microbial flocculant and the ternary grafted and

  • investigation of self-assembly processes for chitosan

    Investigation of Self-Assembly Processes for Chitosan

    1. Introduction. Studies on the use of polysaccharides and their removal efficacy toward various waterborne contaminants has been reported. This review focuses mainly on the use of chitosan and its derivatives to facilitate the coagulation-flocculation process for the removal of cationic and anionic species from water.

  • 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

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