• (pdf) optimizing flocculation with starch polymer to

    (PDF) Optimizing flocculation with starch polymer to

    Optimizing flocculation with starch polymer to reduce polyacrylamide usage. Conference Paper (PDF Available) · November 2017 with 99 Reads How we measure 'reads' A 'read' is counted each time

  • substituting polyacrylamide with an activated starch

    Substituting polyacrylamide with an activated starch

    A coagulation pH above 6.5 was detrimental for both polymers, but more drastically for starch polymers. Therefore, optimizing coagulation is the first step needed prior to optimizing flocculation. • A slightly anionic charge density between 2.4 and 0.4 mEq/g was established as optimal for coagulation at a pH of 6.5. The optimal charge density

  • analysis and optimization of coagulation and flocculation

    Analysis and optimization of coagulation and flocculation

    2015-02-01· 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

  • optimization of preparing a high yield and high cationic

    Optimization of preparing a high yield and high cationic

    To improve the flocculation properties, modifications of these natural polymers are frequently required [9, 10]. Starch, as one of the most abundant and accessible polysaccharide, is a promising candidate for sustainable materials. The modification of starch is convenient with the reactive groups on the starch

  • optimization of the coagulation-flocculation process

    Optimization of the coagulation-flocculation process

    Pulp mill wastewater was treated using the coagulation-flocculation process with aluminum chloride as the coagulant and a modified natural polymer, starch-g-PAM-g-PDMC [polyacrylamide and poly (2-methacryloyloxyethyl) trimethyl ammonium chloride], as the flocculant.A novel approach with a combination of response surface methodology (RSM) and uniform design (UD) was employed to

  • optimization of coagulation–flocculation process for a

    Optimization of Coagulation–Flocculation Process for a

    A coagulation–flocculation process was used to treat a paper-recycling wastewater with aluminum chloride as coagulant and a modified natural polymer, chitosan-g-PDMC (poly(2-methacryloyloxyethyl

  • optimization of agro-industrial wastewater treatment

    Optimization of agro-industrial wastewater treatment

    Starch, one of the most abundant natural polymers in the world, is an interesting material to be used as a coagulant. According to Kraak (1992), starch products have a special role in purification process for drinking water through flocculation.

  • evaluation of activated starch as an alternative to

    Evaluation of activated starch as an alternative to

    The starch polymers and PAM used in this study have different MW, spatial conformation, and charge density (CD), which led to differences in optimal flocculation conditions. To assess the performance of each polymer, their optimal dosages were first evaluated with the conventional jar test procedure detailed in Figure 1 .

  • optimization of coagulation–flocculation process for a

    Optimization of Coagulation–Flocculation Process for a

    A coagulation–flocculation process was used to treat a paper-recycling wastewater with aluminum chloride as coagulant and a modified natural polymer, chitosan-g-PDMC (poly(2-methacryloyloxyethyl

  • optimizing flocculation in water treatment dynamix

    Optimizing Flocculation in Water Treatment Dynamix

    2016-04-07· Agitator Design for Wastewater Clarification Part 2 Clarification on Flocculation In our previous article, Agitator Design for Wastewater Clarification Part 1, we looked at how to optimize a mixer for the unit process of coagulation.In wastewater treatment, coagulation is normally followed by flocculation.

  • optimization of microbial flocculant-producing medium

    Optimization of Microbial Flocculant-Producing Medium

    2016-11-14· This study aimed to improve microbial flocculant production by optimizing the components of a Bacillus subtilis CZ1003 culture medium. Using the flocculation rate as the dependent variable, single-factor experiments were performed and beef extract at a concentration of 9 g/L was found to be the optimal nitrogen source, while glucose at a concentration of 20 g/L was the optimal carbon source.

  • properties and flocculation efficiency of

    PROPERTIES AND FLOCCULATION EFFICIENCY OF

    Three starch-based and two cellulose-based polymers were chosen for further flocculation and filtrations tests. Key optimization parameters for the polymer were identified as the increasing of molecular weight and nitrogen content. The starch-based polymer had the best performance in both applications, but in neither of the cases did it

  • characterization of cationic starch: an efficient

    Characterization of cationic starch: An efficient

    Starch is a known carbohydrate in which, regardless of its origin, two polysaccharides are found namely amylose and amylopectin. By insertion of a cationic moiety to the backbone of starch, a modified cationic starch can be developed which can be used as flocculant. Various grades of cationic starches were developed to optimize the best

  • (pdf) polymeric flocculants for wastewater and industrial

    (PDF) Polymeric flocculants for wastewater and industrial

    Polymeric flocculants for wastewater and industrial effluent treatment . Article (PDF Available) · January 2009 with 3,086 Reads How we measure 'reads' A 'read' is counted each time someone views

  • synthesis of a starch–acrylic acid–chitosan copolymer

    Synthesis of a starch–acrylic acid–chitosan copolymer

    All these techniques tend to alter the highly flexible starch polymer with changed physicochemical properties and modified structural attributes of high technological value for the food and non

  • study of synthesis and flocculation properties of new

    Study of Synthesis and Flocculation Properties of New

    A new modified hydrophobic organic polymer P(AM-DM-DMC12) is synthesized by free radical polymerization of three monomers in aqueous solution using a REDOX initiator system. Its structure is characterized by FT-IR and 1 H-NMR, the effect of reaction conditions on the product is studied, and the flocculation performance and mechanism are discussed with the aim of wastewater turbidity and

  • optimizing flocculation in water treatment dynamix

    Optimizing Flocculation in Water Treatment Dynamix

    2016-04-07· Agitator Design for Wastewater Clarification Part 2 Clarification on Flocculation In our previous article, Agitator Design for Wastewater Clarification Part 1, we looked at how to optimize a mixer for the unit process of coagulation.In wastewater treatment, coagulation is normally followed by flocculation.

  • preparation of strong cationic chitosan-graft

    Preparation of Strong Cationic Chitosan-graft

    Recently, more attentions have been paid to natural polymer-based flocculants in water treatment, since they are believed to be low-cost, nontoxic, and environmentally friendly materials. In this work, strong cationic chitosan-based graft copolymer flocculants (3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CTA) modified chitosan-graft-polyacrylamide, denoted as chitosan-CTA-g-PAM) have

  • flocculation using starch-based flocculants: an efficient

    Flocculation using starch-based flocculants: An efficient

    2018-01-23· The integration of flocculation allows for a comprehensive treatment, which can evidently alleviate the load of contaminant removal on the subsequent processes and reduce the operation cost. In the flocculation process, the flocculant always plays a key role. Natural polymer-based flocculants, a sort of organic polymers, are distinct from

  • properties and flocculation efficiency of

    PROPERTIES AND FLOCCULATION EFFICIENCY OF

    Three starch-based and two cellulose-based polymers were chosen for further flocculation and filtrations tests. Key optimization parameters for the polymer were identified as the increasing of molecular weight and nitrogen content. The starch-based polymer had the best performance in both applications, but in neither of the cases did it

  • optimization of microbial flocculant-producing medium

    Optimization of Microbial Flocculant-Producing Medium

    2016-11-14· This study aimed to improve microbial flocculant production by optimizing the components of a Bacillus subtilis CZ1003 culture medium. Using the flocculation rate as the dependent variable, single-factor experiments were performed and beef extract at a concentration of 9 g/L was found to be the optimal nitrogen source, while glucose at a concentration of 20 g/L was the optimal carbon source.

  • research on the selective flocculant of soluble starch

    Research on the Selective Flocculant of Soluble Starch

    This paper, a comprehensive analysis of selective flocculation am fine hematite selected based on the combination of soluble starch and the characteristics of acrylamide was prepared soluble starch grafting of acrylamide polymer flocculant. We can see through selective testing, the preparation of starch acrylamide graft polymer of pure quartz and pure hematite were produced on the surface

  • starch modification of the flocculation and flotation

    Starch modification of the flocculation and flotation

    Although the technical literature contains abundant references on applications of starch in mineral processing, the majority is not concerned with phosphate mineral systems. Nevertheless, the interaction between starch and apatite surfaces is relevant to both selective flocculation and flotation of phosphate ores. The main objective of this thesis is to investigate in detail such interaction

  • coagulation and flocculation in water and wastewater

    Coagulation and Flocculation in Water and Wastewater

    Coagulation and Flocculation in Water and Wastewater Treatment. Coagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. This article provides an overview of the processes and looks at the latest thinking.

  • optimization of the coagulation-flocculation deepdyve

    Optimization of the coagulation-flocculation DeepDyve

    2011-11-01· Read "Optimization of the coagulation-flocculation process for pulp mill wastewater treatment using a combination of uniform design and response surface methodology, Water Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • characterization of cationic starch: an efficient

    Characterization of cationic starch: An efficient

    Starch is a known carbohydrate in which, regardless of its origin, two polysaccharides are found namely amylose and amylopectin. By insertion of a cationic moiety to the backbone of starch, a modified cationic starch can be developed which can be used as flocculant. Various grades of cationic starches were developed to optimize the best

  • study of synthesis and flocculation properties of new

    Study of Synthesis and Flocculation Properties of New

    A new modified hydrophobic organic polymer P(AM-DM-DMC12) is synthesized by free radical polymerization of three monomers in aqueous solution using a REDOX initiator system. Its structure is characterized by FT-IR and 1 H-NMR, the effect of reaction conditions on the product is studied, and the flocculation performance and mechanism are discussed with the aim of wastewater turbidity and

  • properties and flocculation efficiency of cationized

    Properties and flocculation efficiency of cationized

    Three starch-based and two cellulose-based polymers were chosen for further flocculation and filtrations tests. Key optimization parameters for the polymer were identified as the increasing of molecular weight and nitrogen content. The starch-based polymer had the best performance in both applications, but in neither of the cases did it

  • polymers for water and wastewater treatment

    Polymers for Water and Wastewater Treatment

    Tramfloc, Inc. manufactures more than 2,000 different polymeric formulations including flocculants, coagulants, emulsion breakers, super plasticizers, erosion control polymers, dust suppressant polymers, and super absorbent polymers. We make liquid, solution, emulsion, granular, bead, tablet and log forms of the polymers.

  • wo1999066129a1 method for optimizing the degree

    WO1999066129A1 Method for optimizing the degree

    The invention concerns a method for optimizing the degree of flocculation in a headbox. The degree of flocculation is measured continuously from a stock flow (M1) / stock flows by means of a detector (R1) of flocculation, and the detector (R1) transmits a signal to a regulator (H1), which regulates the metering of retention agent (10) and/or fillers (11) and/or auxiliary chemicals (12) into

  • measurement of polymer concentration and optimization

    MEASUREMENT OF POLYMER CONCENTRATION AND OPTIMIZATION

    dose and residual polymer concentration in filtrate using UV-Vis absorbance measurements at 190 nm. Results showed that the UV-Vis method could be a potential in-line tool for real-time optimization of polymer dose during sludge dewatering and other processes that rely on coagulation and flocculation

  • water soluble polymer flocculants: synthesis

    Water Soluble Polymer Flocculants: Synthesis

    A hydrophobic monomer can also be added to the polymer structure for the flocculation of organics in the oily wastewater. Yang et al. synthesized a cationic terpolymer with DADMAC, acrylamide, and butylacrylate (BA) monomers. They showed that the presence of BA, as a hydrophobic monomer, improved the flocculation ability of the polymer.

  • studies on selective flocculation of low-grade iron ore

    Studies on selective flocculation of low-grade iron ore

    flocculation has been used widely employing various polymers such as starch, poly acryl amide (PAM), poly acrylic acid (PAA), guar gum, etc.[8–11] However, it can be seen from the literature that grafting of natural polymer and synthetic polymer provides the better results, and there is a need to

  • cn102604116a modified starch-chitosan copolymer

    CN102604116A Modified starch-chitosan copolymer

    The invention relates to a modified starch-chitosan copolymer flocculating agent and a preparation method thereof. The flocculating agent and the method are characterized in that: modified starch and chitosan are adopted as raw materials; ammonium cerium nitrate is adopted as an initiator; and the modified starch/chitosan copolymer flocculating agent is synthesized under an alkaline condition.

  • us6562196b1 method for optimizing the degree

    US6562196B1 Method for optimizing the degree

    The invention concerns a method for optimizing the degree of flocculation in a headbox. The degree of flocculation is measured continuously from a stock flow (M 1 )/stock flows by means of a detector (R 1 ) of flocculation, and the detector (R 1 ) transmits a signal to a regulator (H 1 ), which regulates the metering of retention agent ( 10 ) and/or fillers ( 11 ) and/or auxiliary chemicals

  • mining / chemstar

    Mining / Chemstar

    Matching the right molecule to your technical challenge. To get the right results in complex mining applications, every molecule matters. Partner with Chemstar for the starch polymer expertise and collaborative R&D to produce the exact product for your extraction and beneficiation processes, and save valuable time and money.

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