• preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium ferric silicate chloride composite coagulant from wastewater of high-purity graphite production

  • coagulation efficiency and residual aluminum content

    Coagulation Efficiency and Residual Aluminum Content

    Coagulation Efficiency and Residual Aluminum Content of Polyaluminum Silicate Chloride in Water Treatment Article in Acta Hydrochimica et Hydrobiologica 32(2):125 130 · June 2004 with 11 Reads

  • coagulation efficiency and residual aluminum content

    Coagulation Efficiency and Residual Aluminum Content

    2004-07-02· Abstract. A series of polyaluminum silicate chlorides (PASC), which have different OH — /Al and Al/Si molar ratios, has been prepared by a copolymerization technique and a composite technique, after which the coagulation efficiency and the residual aluminum content of PASC for water treatment were compared with polyaluminum chloride (PAC) by jar test.

  • preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

    Journal of Environmental Sciences 2011, 23(7) 1122–1128 Preparation and coagulation efficiency of polyaluminium ferric silicate chloride composite coagulant from wastewater of high-purity graphite production Xiaoxia Niu ∗,Xili Li, Jihong Zhao, Yigang Ren, Yanqin Yang Henan Provincial Key Laboratory of Surface and Interface Science, School of Materials and Chemical Engineering

  • (pdf) comparison of efficiency between poly‐aluminium

    (PDF) Comparison of Efficiency between Poly‐aluminium

    The efficiency of poly-aluminium chloride (PACl) and of aluminium sulphate (alum), two commonly applied coagulant agents, was studied comparatively in this work, during full-scale experiments in a

  • investigation on coagulation efficiency of

    INVESTIGATION ON COAGULATION EFFICIENCY OF

    INVESTIGATION ON COAGULATION EFFICIENCY OF POLYALUMINIUM SILICATE CHLORIDE (PASiC) COAGULANT G. Gyawali* and A. Rajbhandari (Nyachhyon) * *Central Department of Chemistry, Tribhuvan University, Nepal.

  • preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

    The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifying graphite by roasting, and subsequently to evaluate coagulation efficiency of the reagent by treating surface water from the Yellow River as well as municipal wastewater in comparison with the

  • comparison of efficiency between poly‐aluminium chloride

    Comparison of Efficiency between Poly‐aluminium Chloride

    2008-12-15· The efficiency of poly‐aluminium chloride (PACl) and of aluminium sulphate (alum), two commonly applied coagulant agents, was studied comparatively in this work, during full‐scale experiments in a drinking water treatment plant. The removal of suspended solids (turbidity) and the residual aluminium concentrations were carefully monitored

  • effects of ph and coagulant dosage on effectiveness

    Effects of pH and Coagulant Dosage on Effectiveness

    orange OGR. In pH range from 6.0 to 7.0 diminished effectiveness of coagulation was observed; the decrease was most in the case of red DB-8. At the optimal coagulant dosages colour removal depended on the initial concentration of dye. Minimal efficiency of dye removal was measured for small concentrations of dyes, e.g. 25 and 50 mg/dm3. From

  • using polyaluminium coagulants in water treatment

    USING POLYALUMINIUM COAGULANTS IN WATER TREATMENT

    A higher coagulation pH is adopted with polyaluminium coagulants and it possible that removal of THM percussors may not be as complete as with alum. The following examples illustrate that this depends on the particular raw water in question and in many cases may not be an issue.

  • coagulation behavior of polyaluminum chloride:

    Coagulation behavior of polyaluminum chloride:

    The optimal mechanism at final pH < 7.0 is charge neutralization. Satisfactory coagulation efficiency could be obtained with either charge neutralization coagulation or sweep coagulation at the final pH values from 7.0 to 10.0. The coagulation process of PACl and the formation of PACl precipitates have the same optimal pH value.

  • efficient coagulation, efficient coagulation suppliers

    Efficient Coagulation, Efficient Coagulation Suppliers

    Alibaba offers 175 efficient coagulation products. About 30% of these are paper chemicals, 24% are electronics chemicals, and 21% are textile auxiliary agents. A wide variety of efficient coagulation options are available to you, such as coating auxiliary agents,

  • preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium ferric silicate chloride composite coagulant from wastewater of high-purity graphite production Xiaoxia Niu∗, Xili Li,

  • performance of aluminium sulphate and polyaluminium

    PERFORMANCE OF ALUMINIUM SULPHATE AND POLYALUMINIUM

    oil and grease (O&G). In this study, coagulation was adopted to treat the biodiesel wastewater. Two types of coagulation were examined using a standard jar test apparatus, i.e. polyaluminium chloride (PAC) and aluminium sulphate. The effects of pH and coagulant dosage were examined at 150 rpm of rapid mixing and 20 rpm slow

  • 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.

  • coagulation behavior of polyaluminum chloride: effects

    Coagulation behavior of polyaluminum chloride: Effects

    It seems that the final pH is more meaningful than the initial pH for coagulation. Charge neutralization coagulation efficiency is dominated by zeta potential of flocs and PACl precipitates. The charge neutralization and sweep coagulation zones of PACl are broader in the ranges of coagulant dosage and pH than those of alum. The results are

  • preparation and characterisation of polyaluminium

    Preparation and characterisation of polyaluminium

    To improve the coagulation efficiency for water treatment purposes, a composite aluminium-silicon coagulant, the polyaluminium silicate chloride was prepared and characterised. The preparation process included the preparation of polyaluminium chloride and polysilicic acid followed by the compounding of the two solutions. The prepared

  • polyaluminium silicate chloride—a systematic study

    Polyaluminium silicate chloride—A systematic study

    The coagulation behaviour of the new coagulant agent polyaluminium silicate chloride (PASiC) was investigated in this study. The main purpose was the examination of several possible derivatives of polyaluminium silicate chloride, based on different basicity (OH/Al molar ratio), silica content (Al/Si molar ratio) and preparation method (co-polymerization or composite polymerization) to evaluate

  • preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

    The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifying graphite by roasting, and subsequently to evaluate coagulation efficiency of the reagent by treating surface water from the Yellow River as well as municipal wastewater in comparison with the

  • comparison of a novel polytitanium chloride coagulant

    Comparison of a novel polytitanium chloride coagulant

    2015-01-01· The impact of different B values on coagulation performance with PTC and PAC was comparatively investigated for HA artificial water treatment and assessed in terms of residual turbidity, UV 254 (absorbance at 254 nm) and DOC removal, floc zeta potential and effluent pH ().As shown in Fig. 1(a), the residual turbidity for PTC decreased from around 7.0 NTU at B = 0 to the lowest value of 1.2

  • preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

    The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifying graphite by roasting, and subsequently to evaluate coagulation efficiency of the reagent by treating surface water from the Yellow River as well as municipal wastewater in comparison with the conventional coagulant polyaluminium chloride (PAC).

  • characteristics of polyaluminum chloride (pac) coagulant

    Characteristics of Polyaluminum Chloride (PAC) Coagulant

    coagulation of high turbidity water, particularly at low temperature or acidic pH, also that PAC is an ef-fective filter aid for low turbidity waters, providing for destabilization and subsequent filtration of par-ticles at acidic and neutral pH. PAC has good performance coagulation, with high efficiency, rapid precipitation, suitable for a wide

  • preparation and characterisation of polyaluminium silicate

    Preparation and characterisation of polyaluminium silicate

    To improve the coagulation efficiency for water treatment purposes, a composite aluminium‐silicon coagulant, the polyaluminium silicate chloride was prepared and characterised. The preparation process included the preparation of polyaluminium chloride and polysilicic acid followed by the compounding of the two solutions. The prepared

  • enhanced coagulation-flocculation performance of iron

    Enhanced Coagulation-Flocculation Performance of Iron

    Fig 10 shows the coagulation efficiency of four coagulants in turbidity reduction and UV 254 removal with the dosage from 5 to 30 mg Fe 2 O 3 /l. The result illustrated that PFPS performed superior coagulation efficiency at the dosage above 10 mg/l, and the

  • assessment of coagulation efficiency of moringa oleifera

    Assessment of coagulation efficiency of Moringa oleifera

    coagulation activity was measured on the basis of removal of turbidity and total dissolve solid (TDS). Best turbidity removal efficiency was achieved near neutral pH with optimal doses 200 mg/L and 220 mg/L for M. Oleifera and Okra and TDS removal efficiency was achieved with optimal dosage of 180 mg/L and 200 mg/L for Moringa

  • efficiency of the coagulation-flocculation method for the

    Efficiency of the Coagulation-Flocculation Method for the

    The coagulation-flocculation studies were carried out using the jar test method to determine the optimum pH range and coagulant and coagulant aid dosages. The Coagulation Committee of the American Water Work Association (AWWA) found that the correlation of jar test data and plant operation data is generally satisfactory for primary

  • effect of ph and coagulant dosage on effectiveness

    Effect of PH and Coagulant Dosage on Effectiveness

    In the study the influence of pH and polyaluminium chloride (PAC) dosage on the effectiveness of reactive dyes removal was measured. Experiments were carried out for turquoise DG, red DB-8, orange OGR and black DN. The pH was changed from 3.5 to 7.0 and the

  • preparation and characterisation of polyaluminium silicate

    Preparation and characterisation of polyaluminium silicate

    To improve the coagulation efficiency for water treatment purposes, a composite aluminium-silicon coagulant, the polyaluminium silicate chloride was prepared and characterised. The preparation process included the preparation of polyaluminium chloride and polysilicic acid followed by the compounding of the two solutions. The prepared

  • comparison of coagulation pretreatment of produced

    Comparison of coagulation pretreatment of produced

    This study aimed to optimise coagulation pretreatment of the produced water (PW) collected from a natural gas field. Two coagulants, polyferric sulphate (PFS) and polyaluminium chloride (PACl), were applied separately for the organics, suspended solids (SS), and colour removal.

  • coagulation/flocculation potential of polyaluminium

    Coagulation/Flocculation Potential of Polyaluminium

    2016-06-30· This study investigated the influence of the physico-chemical properties of methyl red (MR) and crystal violet (CV) on their removal by bentonite clay and polyaluminium chloride (PACl). Different dosages of bentonite clay, PACl and a combination of PACl and bentonite clay were applied. Dye concentration, dosage, pH and slow mixing timing were varied to find optimum removal conditions.

  • coagulation/flocculation of dye-containing solutions using

    Coagulation/flocculation of dye-containing solutions using

    2009-04-01· This study aims to compare the performance of Polyaluminium Chloride (PAC) and alum as coagulants to remove a specific type of dye (Acid Blue 292 (AB292)) from dye-containing solution. For this purpose, the influence of pH, coagulant dosage, coagulant aids (kaolinite and bentonite), and initial dye concentration on dye removal efficiency were examined. According to the results, removal of

  • cn1266822a polyaluminium chloride and polyacrylamide

    CN1266822A Polyaluminium chloride and polyacrylamide

    A compund flocculent of inorganic and organic high-molecular substances is prepared from polyaluminium oxide and polyacrylamide or its derivative through proportioning, mixing, heating, stirring and reaction. Its advantages are excellent electric neutralizing power and efficient bridging action.

  • efficiency of the coagulation-flocculation method for the

    Efficiency of the Coagulation-Flocculation Method for the

    The coagulation-flocculation studies were carried out using the jar test method to determine the optimum pH range and coagulant and coagulant aid dosages. The Coagulation Committee of the American Water Work Association (AWWA) found that the correlation of jar test data and plant operation data is generally satisfactory for primary

  • enhanced coagulation-flocculation performance of iron

    Enhanced Coagulation-Flocculation Performance of Iron

    Fig 10 shows the coagulation efficiency of four coagulants in turbidity reduction and UV 254 removal with the dosage from 5 to 30 mg Fe 2 O 3 /l. The result illustrated that PFPS performed superior coagulation efficiency at the dosage above 10 mg/l, and the

  • polyaluminium chloride (pac) dosing pwtag technical

    Polyaluminium chloride (PAC) dosing PWTAG Technical

    Continuous coagulation with polyaluminium chloride has long been recommended by PWTAG especially in the light of the threat from Crytposporidium. Like all coagulants PAC works by extracting and then clumping together dissolved, colloidal and suspended matter. The

  • comparing aluminium sulfate and poly-aluminium chloride

    Comparing Aluminium Sulfate and Poly-Aluminium Chloride

    removal efficiency in water treatment plants of Iran. In this study, the effectiveness of aluminium sulfate and poly-aluminum chloride was evaluated at different pH values and coagulant dosage in order to find optimal operational conditions for low to high turbidity waters. The influence of lime, as a coagulant aid, on coagulation

  • preparation and coagulation efficiency of polyaluminium

    Preparation and coagulation efficiency of polyaluminium

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  • characteristics of polyaluminum chloride (pac) coagulant

    Characteristics of Polyaluminum Chloride (PAC) Coagulant

    coagulation of high turbidity water, particularly at low temperature or acidic pH, also that PAC is an ef-fective filter aid for low turbidity waters, providing for destabilization and subsequent filtration of par-ticles at acidic and neutral pH. PAC has good performance coagulation, with high efficiency, rapid precipitation, suitable for a wide

  • using coagulants poly aluminum chloride and aluminum

    Using Coagulants Poly Aluminum Chloride and Aluminum

    cooperation of two coagulants occurred the ideal turbidity and phosphorus removal efficiency, usually the dosage composed of inorganic coagulant alum or ferrous and polymer coagulants (either organic or Using Coagulants Poly Aluminum Chloride and Aluminum Sulfate to Optimize Phosphorus and Turbidity Removal from Secondary Effluent Kun Yang

  • a new high efficiency coagulant for yellow particles

    A New High Efficiency Coagulant For Yellow Particles

    A New High Efficiency Coagulant For Yellow Particles Polyaluminium Ferric Chloride Pafc,Find Complete Details about A New High Efficiency Coagulant For Yellow Particles Polyaluminium Ferric Chloride Pafc,Polyaluminium Ferric Chloride Pafc,Yellow Particles Polyaluminium Ferric Chloride,A New High Efficiency Coagulant Polyaluminium Ferric Chloride from Electronics Chemicals Supplier

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