polyaluminium silicate sulphate — a new coagulant for potabl

MATERIAL SAFETY DATA SHEET - Polyaluminium .

8,SHANGWU NEIHUAN RD, ZHENGDONG NEW DIS,ZHENGZHOU, HENAN,CHINA Emergency Number: 86-371-63681121 Information Number: 86-371-63681125 SECTION 2 – COMPOSITION / INFORMATION ON INGREDIENTS CHEMICAL NAME CAS NUMBER WEIGHT % Hazardous Polyaluminium Chloride 1327-41-9 29 – 32 (as Aluminium oxide) 40 .

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Chemical Aspects of Coagulation - Stumm - 1962 - Journal .

A. K. Arnold-Smith, R. M. Christie, C. Jolicoeur, Polyaluminium Silicate Sulphate — A New Coagulant for Potable and Wastewater Treatment, Chemical Water and Wastewater Treatment II, 10.1007/978-3-642-77827-8, (203-219), (1992).

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KR20160098768A - Preparing Method of Polyaluminium ...

The present invention relates to a producing method of polyaluminum chloride, comprising the following steps of: injecting aluminum hydroxide having particle size of 13 to 25 m and hydrochloric acid having 1 to 1.3:1.9 to 2.1 parts by weight; reacting the aluminum hydroxide and the hydrochloric acid at the pressure of 7 to 8 kgf/cm^2 and the temperature of 165 to 175C; .

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Coagulation Effects of Aluminum Nitrate and Aluminum Sulfate .

May 01, 2002· Coagulation Effects of Aluminum Nitrate and Aluminum Sulfate on Aqueous Sols of Silver Halides in Statu Nascendi. Detection of Polynuclear Complex Aluminum Ions by Means of Coagulation Measurements ... Polyaluminium Silicate Sulphate — A New Coagulant for Potable and Wastewater Treatment. 1992,,, 203-219. DOI: 10.1007/978-3-642-77827-8_14.

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Enhanced Coagulation-Flocculation Performance of Iron-Based Coagulants.

Sep 04, 2015· Introduction. Coagulation-flocculation is a widely used technology which separates impurities from polluted water bodies. Coagulants typically adopted for water treatment are inorganic iron and aluminum salts [1–3].In addition to Al-base coagulants, Fe-based coagulants such as Fe 2 (SO 4) 3 and FeCl 3 have been increasingly favored due to their non .

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Preparation and characterization of polymeric phosphate-aluminum sulphate .

Mar 14, 2016· To overcome this problem, a relatively new type of coagulant commonly known as inorganic polymer coagulant, such as polymeric forms of ferric chloride and ferric sulphate, polymeric aluminum sulphate (PAS) and aluminum chloride (PAC), have been developed worldwide (Lei et al. 2009; Zhu et al. 2011; Luo et al. 2015). These coagulants include ...

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Water Treatment | Coagulation Chemistry Basics | American ...

Jan 16, 2018· Learn the basics of Coagulation Chemistry. This video is an excerpt from the American Water College Water Treatment Exam Review course. After a quick overview we look at the different types of coagulants. There are three kinds of coagulants. Namely: Trivalent, Bivalent and Monovalent. Trivalent Coagulants include: Aluminum Iron Bivalent Coagulants .

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Characterization and optimization of spectrophotometric ...

The application of novel coagulant reagent (poly aluminium silicate chloride) for the post-treatment of landfill leachates. Chemosphere 73, 729-736. DOI: 10.1016/j.chemosphere.2008.06.051.

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Ερευνητική δραστηριότητα Εργαστηρίου Χημικής & .

2010, Removal of copper from wastewaters by the hybrid coagulation-microfiltration process. Separation Science & Technology, 45 (11), 1658-1666. Zouboulis A.I. and N. Tzoupanos, 2009. Polyaluminium Silicate Chloride-a comparable evaluation for the application of an efficient coagulant for water or wastewater treatment.

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Properties and Coagulation Performance of Coagulant Poly-Aluminum-Ferric-Silicate .

An efficient inorganic polymer coagulant, poly-aluminum-ferric-silicate-chloride (PAFSC), was developed using two approaches: (i) hydroxylation of the mixture of AlCl 3, FeCl 3 and fresh polysilicic acid in different Al/Fe/Si molar ratios to obtain PAFSC c and (ii) hydroxylated poly-aluminum-iron-chloride (PAFC) combined with aged polysilicic acid in different Al/Fe/Si ratios .

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Preparation and characterisation of an optimal polyferric ...

Yubin Zeng, Junboum Park, Characterization and coagulation performance of a novel inorganic polymer coagulant—Poly-zinc-silicate-sulfate, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 10.1016/jlsurfa.2008.10.009, 334, 1-3, (147-154), (2009).

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WO2006056022A1 - Water treatment process - Google Patents

A process for the treatment of an aqueous fluid is disclosed, comprising combining an aqueous fluid with an effective amount of at least one polyaluminium coagulant and a coagulating effective amount of at least one alkali metal silicate for a sufficient time and under conditions suitable to coagulate particles in said fluid and allow flocculation of coagulated particles.

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مقاله The effectiveness of Polyaluminium ferric chloride ...

So, this coagulant doesn't have any adverse health effect on consumers. Theefficiency of this coagulant for the removal of turbidity, color and organic matter in Isfahan raw water was verygood and it has potential for selecting as a new coagulant for this city.

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Water | Free Full-Text | Application of Composite Pre-Polymerized Coagulants for the Treatment .

The new material synthesized in this study, PAPEFAC 1.5-10-15, which contains the anionic polyelectrolyte in its structure and is a combination of coagulant and polyelectrolyte in a single reagent, by replacing the inorganic poly-silicate additive with the organic polyelectrolyte, was also studied for comparative reasons.

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Preparation and Characteristics of Polyaluminium Chloride by .

Clay-brine process employing activated clay, NaCl, HCl, and HF as raw materials is the primarily advanced technology to synthesize cryolite in the present industrial grade. However, plenty of byproducts of fluorine-containing waste HCl at the concentration of about 10%~12% could not be utilized comprehensively and are even hazardous to the environment.

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US20070151932A1 - Removal of phosphorous from wastewater - .

Processes, methods and systems are provided herein for lowering the concentration of phosphorus in wastewater. The process includes adding a suitable amount of an aluminium-based coagulant/flocculent, for example, an aluminium-silicate coagulant/flocculent product to the wastewater while maintaining the pH of the wastewater at between about 4.5 and about 6.65.

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CiteSeerX — Inorganic pre-polymerized coagulants: current status and .

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract: The aim of this paper is to provide an overview of the evolution of inorganic pre-polymerized coagulants by summarizing the latest developments in their composition and properties. Considerable attention has been paid in recent years to preparing pre-polymerized metal-ion coagulants, .

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solubility of polyaluminium coagulant

Solubility of polyaluminium coagulants Journal of Water. Solubility in deionized water was studied at 20 and 5°C between pH 4 and 9 for seven coagulants: alum, a low and a high basicity polyaluminium chloride (PACl) containing no sulphate, a medium and a high basicity PACl with sulphate, aluminium chlorohydrate and a low basicity polyaluminium sulphate (PAS).

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Enhanced Coagulation-Flocculation Performance of Iron ...

Sep 04, 2015· Introduction. Coagulation-flocculation is a widely used technology which separates impurities from polluted water bodies. Coagulants typically adopted for water treatment are inorganic iron and aluminum salts [1–3].In addition to Al-base coagulants, Fe-based coagulants such as Fe 2 (SO 4) 3 and FeCl 3 have been increasingly favored due to their non-toxicity, larger flocs size, superior ...

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COAGULATION-FLOCCULATION PROCESSES IN .

The development of simple pre-polymerized coagulants (i.e. polyaluminium chloride,) seems no longer to be sufficient enough. The need for more effective coagulants has lead to the development of new coagulant categories, via the introduction of various additives in the structure of pre-polymerized coagulants.

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Graphene Oxide Fe-Based Composite Pre-Polymerized ...

The pre-polymerized inorganic coagulants represent a relatively new category of coagulant agents, which was developed in order to increase the e ectiveness of the convenient coagulation process. More recently, composite polymeric aluminum and/or iron products, such as PFSiS (polyferric silicate sulfate) [25], PASiC (polyaluminium silicate ...

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Effect of Silicon Dose and pH on Coagulation Performance ...

Abstract Poly-silicic-cation coagulants (PSiCs) were prepared from industrial wastes. Optimal conditions for synthesis of PSiCs were determined from orthogonal experiments. Coagulation performance was evaluated through jar tests in treatment of pulping and papermaking wastewater, and fractal dimensions of the flocs during coagulation were analyzed on basis of floc images on GRViewer.

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BS EN 885:2001 - Chemicals used for treatment of water ...

Polyaluminium chloride hydroxide silicate BS EN 886:2004 Chemicals used for treatment of water intended for human consumption. Polyaluminium hydroxide silicate sulfate BS EN 935:2004 Chemicals used for treatment of water intended for human consumption. Aluminium iron(III) chloride (monomeric) and aluminium iron(III) chloride hydroxide (monomeric)

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US4981675A - Polymeric basic aluminum silicate-sulphate - .

A polynucleate hydroxy silicate-sulphate compound having the following average composition of the general formula: Al.sub.A (OH).sub.B (SO.sub.4).sub.C (SiO.sub.X).sub.D (H.sub.2 O).sub.E wherein A is 1.0 B ranges from 0.75 to 2.0 C ranges from 0.30 to 1.12 D ranges from 0.005 to 0.1 X is greater than 2.0 but less or equal to 4.0 such that 3=B+2C+2D(X-2) E is 1.5 to 4 when the .

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Coagulation and Flocculation in Water and Wastewater .

Using ferric coagulants efficiencies of arsenic(V) removals are in the order polyferric chloride > polyferric sulfate > feric chloride > ferric sulfate. Best results are obtained at a pH of 5.5. As(V) removals ranged from approximately 70 to 99.6-percent at dosages of 1.7 to 3.8 mg/l as Fe, with sedimentation followed by filtration.

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Use of waste sludge generated from water defluoridation plant as .

Aug 22, 2019· In the present study, sludge produced from the continuous defluoridation set-up was used as partial replacement for fine aggregates in mortar making. Aluminium sulphate (alum) and polyaluminium chloride (PACl) were used as coagulants for fluoride removal and mortar cubes with size of 50 mm × 50 mm × 50 mm were prepared with alum and .

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Cell separation from high cell density broths of ...

Alcaligenes eutrophus was successfully recovered from high cell density broths by pre-treatment with polyaluminium hydroxide chloride silicate as a coagulant at 36–90 mg Al/l. The optimum pH range for cell coagulation was 10–12. Subsequent centrifugation (45×g) and filtration (pore size 0.5 mm) gave a cell recovery of higher than 90%. The energy demand for cell recovery with the coagulant ...

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WATER TREATMENT COMPOSITIONS AND METHODS OF USE .

1. A method for clarifying water or removing phosphate from water, comprising: adding an aluminum-containing coagulant selected from polyaluminum chloride, aluminum chlorohydrate, polyaluminum chlorohydrate, aluminum sulfate, sodium aluminate, polyaluminum sulfate, polyaluminum silicate chloride, polyaluminum silicate sulfate or a combination thereof, and a .

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Synthesis and coagulation performance of composite poly-aluminum-ferric-silicate-chloride coagulants .

Synthesis and coagulation performance of composite poly-aluminum-ferric-silicate-chloride coagulants in water and wastewater A.K. Tolkou Laboratory of General and Inorganic Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece, Tel. +30 2310 997794 Correspondence [email protected]

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Coagulation and Flocculation in Water and Wastewater ...

Using ferric coagulants efficiencies of arsenic(V) removals are in the order polyferric chloride > polyferric sulfate > feric chloride > ferric sulfate. Best results are obtained at a pH of 5.5. As(V) removals ranged from approximately 70 to 99.6-percent at dosages of 1.7 .

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HYDREX™ 3000

Hydrex™ 3212 lnorganic Coagulants High performance liquid polyaluminum silicate sulfate coagulant that generally offers superior clarification in either potable water or wastewater. The aluminum in Hydrex™ 3212 is highly charged. Hydrex™ 3223 lnorganic Coagulants Polyaluminium chioride liquid coagulant. High performance, clarification ...

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Properties and Coagulation Performance of Coagulant Poly ...

An efficient inorganic polymer coagulant, poly-aluminum-ferric-silicate-chloride (PAFSC), was developed using two approaches: (i) hydroxylation of the mixture of AlCl 3, FeCl 3 and fresh polysilicic acid in different Al/Fe/Si molar ratios to obtain PAFSC c and (ii) hydroxylated poly-aluminum-iron-chloride (PAFC) combined with aged polysilicic acid in different Al/Fe/Si ratios to produce PAFSC m.

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