• flocculation of municipal wastewaters with anionic

    Flocculation of municipal wastewaters with anionic

    In this work, we first tested the flocculation performance of three anionic sulfonated (ADAC) nanocellulose flocculants, with variable charge densities in combined coagulation–flocculation treatment of municipal wastewater and compared the results with the performance of a commercial coagulant and a synthetic polymeric flocculant. Second

  • flocculation of municipal wastewaters with anionic

    Flocculation of municipal wastewaters with anionic

    Anionic nanofibrils were tested in the flocculation of municipal wastewater. • The morphology and the strength of formed flocs were analyzed. • Flocculation results of ADACs were comparable with commercial reference polymer. • Flocs with nanocelluloses were smaller but more stable than with reference polymer.

  • flocculation of municipal wastewaters with anionic

    Flocculation of municipal wastewaters with anionic

    Flocculation of municipal wastewaters with anionic nanocelluloses: Influence of nanocellulose characteristics on floc morphology and strength

  • coagulation–flocculation treatment of municipal

    Coagulation–flocculation treatment of municipal

    The flocculation performance of five anionic dicarboxylic acid (DCC) nanocelluloses produced in this way with variable charge densities was examined in the context of the coagulation–flocculation treatment of municipal waste water. The effects of DCC dosage and pH on flocculation were studied by measuring residual turbidity and COD of the

  • cationic nanocelluloses in dewatering of municipal

    Cationic nanocelluloses in dewatering of municipal

    Flocculation of municipal wastewaters with anionic nanocelluloses: influence of nanocellulose characteristics on floc morphology and strength Jan 2005 T Suopajärvi

  • disinfection of municipal wastewaters by

    DISINFECTION OF MUNICIPAL WASTEWATERS BY

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  • use of prosopis laevigata seed gum and opuntia ficus

    Use of Prosopis laevigata Seed Gum and Opuntia ficus

    Use of Prosopis laevigata Seed Gum and Opuntia ficus-indica Mucilage for the Treatment of Municipal Wastewaters by Coagulation-Flocculation 36 The two best studied galactomannans-producing Pro- sopis species are P. juliflora [2,3] and P.pallida [4].In Mexico, this species is known as mesquite.

  • advanced treatment of laundry wastewater with coagulation

    Advanced treatment of laundry wastewater with coagulation

    flocculation process in laundry wastewater in order to render the waste suitable for its disposal at the municipal sewage network. Physicochemical analyses were performed, monitoring the content of nitrogen (total nitrogen), phosphorus (total phosphorus), anionic surfactants (L.A.S.), total

  • coagulation and flocculation in water and wastewater

    Coagulation and Flocculation in Water and Wastewater

    Coagulation and Flocculation in Water and Wastewater TreatmentThe CoagulantsRemoval of Natural Organic MatterPathogen RemovalRemoval of InorganicsWastewater TreatmentFactors Affecting Coagulation OperationsRapid MixingFlocculationTesting and ControlSludge HandlingFurther ReadingReferencesRelated PublicationsCoagulation 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. Material for this article was largely taken from reference1.Coagulation and flocculation are essential processes in various disciplines. In potable water treatment, clarification of water using coagulating agents has been practiced from ancient times. As early as 2000 BC the Egyptians used al

    Flocculation of fine hematite and quartz suspensions with

    Research was undertaken to investigate the efficiency of anionic dicarboxylic acid (DCC) and sulfonated (ADAC) cellulose nanofibers in flocculating fine hematite and quartz partic

  • water soluble polymer flocculants: synthesis

    Water Soluble Polymer Flocculants: Synthesis

    They are used to flocculate positively charged particles in many industrial units, such as municipal wastewaters and sludge dewatering. 34 Acrylic acid (AA) is a commonly used anionic monomer, and anionic derivatives of polyacrylamide can also be obtained by post‐polymerization hydrolysis with an alkali such as NaOH to create carboxyl groups

  • 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.

  • dewatering of barite clay wastewater by inorganic

    DEWATERING OF BARITE CLAY WASTEWATER BY INORGANIC

    DEWATERING OF BARITE CLAY WASTEWATER BY INORGANIC COAGULANTS AND CO-POLYMER FLOCCULANTS Vedat DENIZ Department of Polymer Engineering, Hitit University, Corum, Turkey, [email protected] Abstract: This work is focused on dewatering of barite-containing clay waste from a barite beneficiation plant by coagulation and flocculation to enhance the dewatering

  • interference of model wastewater components with

    Interference of model wastewater components with

    The inorganic nitrogen concentrations used agree with their content in municipal wastewaters (Foladoriet al., 2018, Iasimoneet al., 2018). The possible interfering effects of NH 4 +, NO 2 − or NO 3 − ions with alkaline flocculation were evaluated and the test results are shown in Fig. 1. Download : Download high-res image (305KB)

  • synthesis, properties and performance of organic polymers

    Synthesis, properties and performance of organic polymers

    The majority of commercial anionic flocculants contain carboxylate and sulfonate ions as the anionic functional group, and this can range from 1 to 100% of the monomer units. 10 Anionic polymers are most commonly used as flocculants in mineral processing applications. 1,3 Optimal flocculation is possible due to strong ionic interaction between

  • coagulations and flocculation water treatment suez

    Coagulations and Flocculation Water Treatment SUEZ

    Coagulation and flocculation water treatment chemicals are used to remove iron, suspended solids, organic color, and hardness from influent water. In wastewater treatment these clarification aids help with the removal of other contaminants such as oil, phosphate and heavy metals. For raw water applications, polymer products help to eliminate

  • improvement of coagulation-flocculation process

    IMPROVEMENT OF COAGULATION-FLOCCULATION PROCESS

    - Flocculation speed: 20 rpm when the coagulant was used alone and 40 rpm when anionic polyacrylamide is added, since the flocs formed were larger and heavier and tended to settle at the lower speed. Flocculation time: 5 min. The influence of the settling time was also studied, the duration of the experiments being fixed at 60 min in all cases.

  • frontiers evaluation of anionic and cationic pulp-based

    Frontiers Evaluation of Anionic and Cationic Pulp-Based

    2020-01-30· Anionic cellulose-based flocculation agents hold negatively charged groups, which are able to establish strong interactions with oppositely charged particles which can also be dispersed in the effluent. The developed anionic cellulose-based flocculants (ADAC p and ADAC w series) were tested in turbidity reduction of the industrial colored effluent. The variation of supernatant water turbidity

  • advanced treatment of laundry wastewater with coagulation

    Advanced treatment of laundry wastewater with coagulation

    flocculation process in laundry wastewater in order to render the waste suitable for its disposal at the municipal sewage network. Physicochemical analyses were performed, monitoring the content of nitrogen (total nitrogen), phosphorus (total phosphorus), anionic surfactants (L.A.S.), total

  • 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

  • advanced treatment of laundry wastewater with coagulation

    Advanced treatment of laundry wastewater with coagulation

    flocculation process in laundry wastewater in order to render the waste suitable for its disposal at the municipal sewage network. Physicochemical analyses were performed, monitoring the content of nitrogen (total nitrogen), phosphorus (total phosphorus), anionic surfactants (L.A.S.), total

  • study of flocculation with ponilit gt-2 anionic

    Study of flocculation with PONILIT GT-2 anionic

    Study of flocculation with PONILIT GT-2 anionic polyelectrolyte applied into a chemical wastewater treatment; The solvent extraction and spectrophotometric determination of vanadium (V) with 4-(2-thiazolylazo)resorcinol and tetrazolium salts

  • dissolved air flotation (daf) for primary and tertiary

    Dissolved air flotation (DAF) for primary and tertiary

    Dissolved air flotation (DAF) for primary and tertiary treatment of municipal wastewaters. Koivunen J(1), Heinonen-Tanski H. Author information: (1)University of Kuopio, Department of Environmental Sciences, POB 1627, FIN-70211 Kuopio, Finland. Tertiary treatment of municipal wastewater by dissolved air flotation was studied on a pilot-scale. The effects of coagulant dose, flocculation pattern

  • flocculation of fine particles in ceramic wastewater using

    Flocculation of fine particles in ceramic wastewater using

    Flocculation of fine particles in ceramic wastewater using new types of polymeric flocculants. Ismail Cengiz. Department of Mining Engineering, Afyon Kocatepe University, 03200 Afyonkarahisar, Turkey

  • flocculation power of chitosan and its springerlink

    Flocculation Power of Chitosan and Its SpringerLink

    The flocculation properties of chitosan (cationic component) and its copolymers with (meth)acrylic acid were studied. The flocculation power of grafted chitosan copolymers with dimethylaminoethyl methacrylate in mixtures with an anionic polyacrylic flocculant was evaluated.

  • coagulation-flocculation sswm find tools

    Coagulation-Flocculation SSWM Find tools

    Coagulation-flocculation is a chemical water treatment technique typically applied prior to sedimentation and filtration (e.g. rapid sand filtration) to enhance the ability of a treatment process to remove particles. Coagulation is a process used to neutralise charges and form a gelatinous mass to trap (or bridge) particles thus forming a mass large enough to settle or be trapped in the filter.

  • improvement of coagulation-flocculation process

    IMPROVEMENT OF COAGULATION-FLOCCULATION PROCESS

    - Flocculation speed: 20 rpm when the coagulant was used alone and 40 rpm when anionic polyacrylamide is added, since the flocs formed were larger and heavier and tended to settle at the lower speed. Flocculation time: 5 min. The influence of the settling time was also studied, the duration of the experiments being fixed at 60 min in all cases.

  • jar test procedure for precipitants, coagulants,

    Jar Test Procedure for Precipitants, Coagulants,

    Jar Test Procedure for Precipitants, Coagulants, & Flocculants Precipitation is the chemical conversion of soluble substances (including metals) into insoluble particles. Coagulation and flocculation causes a chemical reaction that promotes the formation, agglomeration or clumping of such particles to facilitate their removal from solution.

  • dissolved air flotation (daf) for primary and

    DISSOLVED AIR FLOTATION (DAF) FOR PRIMARY AND

    ABSTRACT Tertiary treatment of municipal wastewater by dissolved air flotation was studied on a pilot‐scale. The effects of coagulant dose, flocculation pattern, dispersion water recycle ratio and

  • use of prosopis laevigata seed gum and opuntia ficus

    Use of Prosopis laevigata Seed Gum and Opuntia ficus

    Use of Prosopis laevigata Seed Gum and Opuntia ficus-indica Mucilage for the Treatment of Municipal Wastewaters by Coagulation-Flocculation. Luis G. Torres 1, Sandra L.

  • study of flocculation with ponilit gt-2 anionic

    Study of flocculation with PONILIT GT-2 anionic

    2007-03-01· Abstract This paper discusses the applications of synthetic PONILIT GT-2 anionic polyelectrolyte in conjuction with ferric sulfate in a chemical wastewater treatment viz. wastewater from ceramics manufacturing. Synthetic wastewaters with different colloid concentrations were prepared and the coagulation-flocculation process followed by sedimentation and/or filtration was studied.

  • use of prosopis laevigata seed gum and opuntia ficus

    Use of Prosopis laevigata Seed Gum and Opuntia ficus

    This work shows that both Prosopis galactomannan and Opuntia mucilage can be used to treat municipal wastewaters with an initial organic charge of about 827 mg/L as COD by the coagulation-flocculation process, with COD removals for the mesquite seed gum of up to 90% (pH 10, dose of 75 mg/L) and of 60% (pH 7, doses of 50 and 150 mg/L). In the

  • polymer flocculants tramfloc, inc.

    Polymer Flocculants Tramfloc, Inc.

    They can be either anionic (negatively charged), nonionic (no charge), or cationic (positively charged). Flocculants are used to bridge the neutralized or coagulated particles into larger agglomerates, resulting in more efficient settling. Flocculants are used in solids thickening, sludge dewatering, and

  • lignin-based flocculant and dispersant for wastewater

    Lignin-based flocculant and dispersant for wastewater

    The wastewaters produced from different industries contain fine and charged suspended particles and other impurities. Today, the removal of these colloidal particles from the wastewater becomes a serious challenge for industry. Flocculation of the fine particles using polymers followed by settling is one popular technique in industry. Synthetic

  • henrikki liimatainen university of oulu

    Henrikki Liimatainen University of Oulu

    Suopajärvi, Terhi; Koivuranta, Elisa; Liimatainen, Henrikki; Niinimäki, Jouko (2014) Flocculation of municipal wastewaters with anionic nanocelluloses: Influence of nanocellulose characteristics on floc morphology and strength. Journal of Environmental Chemical Engineering 2 (4), 2005-2012

  • cationic flocculant(polyacrylamide) used for municipal

    cationic flocculant(polyacrylamide) used for municipal

    Anionic PAM: It is widely used in waste water treatment of chemical industry, municipal sewage treatment, such as coal washing, mineral processing, metallurgy, iron and steel industry and electronic industry. It is also used in oil industry to enhance oil recovery which is widely used. In addition, it can be used as paper additives and textile pulp agent.

  • use of response surface methodology in the optimization

    Use of Response Surface Methodology in the Optimization

    municipal wastewaters (WW). Optimization of CF was performed to minimize chemical oxygen demand (COD), turbidity, sludge produced, and some metals in sludge. A Box-Behnken design was used to evaluate the effects and interactions of three factors such as type of biopolymer (guar, mesquite seed gum and Opuntia mucilage), dose of biopolymer (25, 50 and 75 mg/L) and initial organic load of

  • wastewater treatment flocculants coagulants defoamer

    Wastewater Treatment Flocculants Coagulants Defoamer

    Chemiphase supply a range of wastewater treatment chmicals that include coagulents, flocculants and antifoams. Our chemicals have a wide range of application, for example coagulants & flocculants for effluent water treatment, industrial water treatment, B.O.D or C.O.D wastewater improvements.

  • amphoteric polymer & polyacrylamide

    Amphoteric Polymer & Polyacrylamide

    The amphoteric polyacrylamide (PAM) is not a mixture of anionic and cationic. If the cationic polyacrylamide bejing used in together with anionic polyacrylamide, the precipitation will be formed. Amphoteric polyacrylamide is a molecule containing both cationic and anionic groups. What are Dissolving Tips for Sinofloc Amphoteric Flocculants?

  • application of cellulose nanofibers to springerlink

    Application of cellulose nanofibers to SpringerLink

    2016-12-20· Ink concentration reductions of 100%, 87.5% and 83.3% were achieved for copper phthalocyanine blue, carbon black and diarlyide yellow pigments, respectively. Flocculation studies carried out show the decolourisation mechanism during the dual-component treatment of wastewaters containing water-based inks.

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