آخرین محصولات

Poly-ferric sulphate as superior coagulant: A review on …

tribute to the formation of insoluble flocs. Ferric chloride, ferrous sulphate, and poly-ferric sulphate (PFS) are examples of iron-based coagulants that are highly available, and are …

Mechanistic insights into the effect of poly ferric sulfate on

DOI: 10.1016/j.watres.2020.116645 Corpus ID: 227159283; Mechanistic insights into the effect of poly ferric sulfate on anaerobic digestion of waste activated sludge. @article{Liu2020MechanisticII, title={Mechanistic insights into the effect of poly ferric sulfate on anaerobic digestion of waste activated sludge.}, author={Xuran Liu and …

Journal of Cleaner Production

The poly-aluminum-ferric-sulfate (PAFS) coagulant was further obtained from the leachate, and its coagulation performance was evaluated by jar tests. It was found that the PAFS is highly effective under acid conditions, and shows the highest removal efficiency of 93.7% for Direct Blue 2B with a dosage of 140 mg/L.

Degradation of Diazo Congo Red Dye by Using Synthesized Poly-Ferric …

Conventional metal salt coagulants such as aluminum sulphate (alum), ferric chloride (FeCl 3), and ferric sulphate (Fe 2 (SO 4) 3) are widely used in the coagulation–flocculation process . However, these coagulants suffer from limitations such as rapid formation of hydrolysis species during dilution that cannot be controlled [ 19 ].

Poly Ferric Sulphate | Water Treatment Coagulant

The chemical formula for Poly Ferric Sulphate (PFS) can vary depending on the specific polymeric structure and degree of polymerization of the product. However, it is generally represented as [Fe2(OH)n(SO4)m]x, where n and m are the variables denoting the number of hydroxyl (OH) and sulfate (SO4) groups, respectively.

Poly-ferric sulphate as superior coagulant: A review on …

Iron-based coagulants are widely used in wastewater treatment due to their high positively charged ion that effectively destabilise colloidal suspension, and thus contribute to the formation of insoluble flocs. Ferric chloride, ferrous sulphate, and poly-ferric sulphate (PFS) are examples of iron-based coagulants that are highly available, and are …

Insights into how poly aluminum chloride and poly ferric sulfate …

DOI: 10.1016/j.scitotenv.2021.151413 Corpus ID: 244071880; Insights into how poly aluminum chloride and poly ferric sulfate affect methane production from anaerobic digestion of waste activated sludge.

Ferric Sulphate and Polyferric Sulphate Market Size

The global ferric sulfate and poly ferric sulfate industry value reached USD 444.6 million in 2023. Over the forecast period, the value is anticipated to rise at 4.4% CAGR. ... such as using poly ferric sulfate for reduced sludge production and lower chemical usage. Growing industrial base and population create a significant sector for water ...

Synthesis, Characterization, and Coagulation of Polymeric …

This paper proposes a new approach to synthesize polymeric ferric sulfate (PFS). It was found that the basicity and stability of the synthesized PFS varied with the …

Mechanistic insights into the effect of poly ferric sulfate on

Poly ferric sulfate (PFS), one of the typical inorganic flocculants widely used in wastewater management and waste activated sludge (WAS) dewatering, could be …

Polyferric sulphate: Preparation, characterisation and application …

The synthesis of PFS commences with the oxidation of ferrous sulphate (5.59 × 10 −3 M as Fe) to ferric sulphate in highly acidic conditions (H 2 SO 4, 96 wt%). The oxidising agent was nitric acid (HNO 3, 65 wt%). FeSO 4 + 1/2SO 4 2− + oxidising agent → 1/2Fe 2 (SO 4) 3 (Step 1. Oxidation)

Industrial waste utilization method: producing poly-ferric sulfate …

The difficulty in production of high quality poly-ferric sulfate (PFS) is how to remove impurities contained in jarosite residue. ... poly-ferric sulfate (BPFS) was prepared by oxidation of ...

(PDF) Synthesis of Poly-Alumino-Ferric Sulphate

Performance evaluation of (a) poly-alumino-ferric sulphate (AMD-PAFS) coagulant and (b) poly ferric sulphate coagulant (initial pH 7.0, temperature = 24.6 °C) during the treatment of brewery ...

Preparation of poly ferric sulfate and the application in micro

Poly ferric sulfate (PFS) is a kind of polymeric coagulants widely used in China in the past 20 years and reveals certain advantages in advanced treatment of …

Preparation of a composite coagulant: Polymeric aluminum ferric sulfate

Polymeric Ferric Sulfate (PFS) is a pre-hydrolyzed coagulant, prepared by partially neutralization of ferric sulfate. It contains poly-nuclear complex ions, such as Fe 2 (OH) 2 4 +, Fe 3 (OH) 4 5 +, formed by the OH bridges and large number of inorganic macromolecular compounds with high positive charge, which results in efficient …

Synthesis of a Goethite Pigment by Selective Precipitation of …

Menezes JCSS, Silva RA, Arce IS, Schneider IAH (2009) Production of poly-ferric sulphate chemical coagulant by selective precipitation of iron from acid coal mine drainage. Mine Water Environ 28:311–314. Article Google Scholar Menezes JCSS, Silva RA, Arce IS, Schneider IAH (2010) Production of a poly-alumino-iron sulphate …

Quantitative Production of High Concentration Poly-Ferric …

Poly-ferric magnesium sulfate coagulant as another water purifying agent besides poly-aluminum multi-salt can be quantitatively produced through ferrous sulfate oxidation with high product concentration. This article starts with the selection of raw material, then elaborates process flow from a small-scale lab simulate experiment to a …

Mechanistic insights into the effect of poly ferric sulfate on

Poly ferric sulfate (PFS), one of the typical inorganic flocculants widely used in wastewater management and waste activated sludge (WAS) dewatering, could be accumulated in WAS and inevitably entered in anaerobic digestion system at high levels. However, knowledge about its impact on methane production is virtually absent.

Poly Ferric Sulphate (PFS): Your Powerful Solution For Water

Synonyms: Polymeric Ferric Sulfate, PFS, Polyferric Sulfate, Polymeric Ferric Salt, Ferric Polysulfate, Ferric Polysulphate, Poly Iron Sulfate, Poly Iron Sulphate CAS No.: 1 HS Code: 2833299090 Place of Origin: China Appearance: Yellowish powder Molecular formula: Fe2O12S3 Terms of Payment: T/T, Western Union, L/C, D/P …

Study on Preparation of Poly Aluminum Ferric Sulfate …

In this study, an inorganic flocculant poly-aluminum sulfate flocculant (PAFS) was prepared with municipal solid waste incineration (MSWI) fly ash.

Insights into how poly aluminum chloride and poly ferric sulfate …

Insights into how poly aluminum chloride and poly ferric sulfate affect methane production from anaerobic digestion of waste activated sludge. ... Poly aluminum chloride (PAC) and poly ferric sulfate (PFS) are widely used in wastewater treatment and sludge dewatering, resulting in their amounts being accumulated substantially in waste …

Mechanistic insights into the effect of poly ferric sulfate …

Poly ferric sulfate (PFS), one of the typical inorganic flocculants widely used in wastewater management and waste activated sludge (WAS) dewatering, could be accumulated in WAS and inevitably ...

Industrial waste utilization method: producing poly-ferric sulfate …

Sodium-jarosite is a type of industrial waste that results from hydrometallurgy and inorganic chemical production. The iron content of jarosite residue may be utilized to produce theoretically the ferrous materials. The difficulty in production of high quality poly-ferric sulfate (PFS) is how to remove impurities contained in jarosite …

Preparation of poly ferric sulfate and the application in …

Poly ferric sulfate (PFS) is a kind of polymeric coagulants widely used in China in the past 20 years and reveals certain advantages in advanced treatment of wastewater.

Polyferric sulphate: Preparation, characterisation and application …

Moreover, iron sulfate heptahydrate (FeSO 4 ·7H 2 O) as another ferrous by-product, together with FeSO 4, could result from the production of titanium dioxide (TiO 2 ) can act as a chemical ...

Preparation and coagulation performance of poly-ferric …

Poly-ferric-aluminum-silicate-sulfate (PFASS) with various (Al + Fe)/Si molar ratios was prepared from fly ash to evaluate their coagulation efficiencies in oily wastewater, and the structure and morphology of which were characterized by infrared spectra (FTIR), X-ray diffraction (XRD) and transmission electron microscopy (TEM).Therefore, the …

Polyferric sulphate: Preparation, characterisation and …

FeCl 3, AlCl 3, Fe 2 (SO 4) 3, poly ferric sulfate (PFS) and poly aluminium ferric chloride (PAFC) were utilized at varying dosages to examine their impact on FS properties and subsequent biogas production from the dewatered FS. It was found that coagulation enhances sedimentation efficiencies and dewaterability through …

Metals | Free Full-Text | Synthesis of Poly-Alumino-Ferric Sulphate

The wastes generated from both operational and abandoned coal and metal mining are an environmental concern. These wastes, including acid mine drainage (AMD), are treated to abate the devastating effects they have on the environment before disposal. However, AMD contains valuable resources that can be recovered to subsidize …

Polyferric sulphate: Preparation, characterisation and …

Poly ferric sulfate (PFS), the polymerized iron salts, can provide a variety of nucleic hydroxyl high-valence complex ions and hydrolyze to the highly cross-linked …

Polyferric sulphate: Preparation, characterisation and …

PFS is a pre-hydrolysed coagulant prepared by partially neutralisation of iron salts. During the neutralisation several polymerisation reactions occur resulting in …

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