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uses of study on optimal conditions of high purity poly ferric chloride in china

  • Efficiency Comparison of PolyDADMAC Coagulant

    2017-11-1 · The aim of this study was to evaluate and compare of PolyDADMAC with ferric chloride as a coagulant on the removal of turbidity, Coliform and Organic matter from Ahvaz drinking water. Materials and Methods: This study was carried out in a lab scale and using a …

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  • Preparation and Characteristics of Polyaluminium

    In this paper, the effect of removals on the concentration of fluoride with the combined treatment of calcium oxide and calcium chloride were discussed with regard to acid waste water. The study improved the sludge characteristics by using polyacrylamide (PAM) and polymeric aluminum chloride (PAC).

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  • Study on Treatment of acidic and highly concentrated ...

    2005-7-8 · This is a two-part work on the chemistry of iron(III) as coagulant in the treatment of cork processing wastewater. The main aim of the first part was to determine the removal of organic matter as measured by reductions in chemical oxygen demand (COD), polyphenols (P), and aromatic compounds (A) that can be obtained using this physicochemical process.

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  • Evaluation of Ferric Chloride as a Coagulant for Cork ...

    2019-6-1 · The optimal process parameters were determined to be as follows: leaching temperature of 50 °C, liquid-to-solid ratio of 8:1, FeCl 3 excess coefficient of 1.2, and reaction time of 1 h. Under these conditions, Sb could be leached at the high leaching extent of 98.53%, and the low Sb content of 1.55% was detected in the residue.

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  • Ferric chloride leaching of antimony from stibnite ...

    2005-7-8 · This is a two-part work on the chemistry of iron(III) as coagulant in the treatment of cork processing wastewater. The main aim of the first part was to determine the removal of organic matter as measured by reductions in chemical oxygen demand (COD), polyphenols (P), and aromatic compounds (A) that can be obtained using this physicochemical process. To this end, jar-test experiments were used ...

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  • Evaluation of Ferric Chloride as a Coagulant for Cork ...

    2019-5-1 · Therefore, a sufficient supply of high purity lithium is vital in order for these significant technologies to develop. In the current work, industrial grade lithium chloride has been successfully treated with four simple precipitation steps to obtain a high purity battery grade lithium carbonate of …

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  • Purification of industrial grade lithium chloride for the ...

    2021-3-17 · In this study, we investigated the effect of cations in high-salt wastewater on the removal of chlorine ions by cuprous chloride precipitation and analysed the corresponding mechanism. A series of investigations revealed that Fe 3+ could oxidise sulphite, thereby reducing the …

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  • Effect of cations on the removal rate of chloride ions

    (1) Currently PEMFC is an expensive technology due to the high production cost of high purity hydrogen, and one research direction is to develop catalytic electrode materials which can function well in the presence of impurities; (2) the commonly used IEMs are not stable at high temperature PEMFC operation, so research is needed to develop low-cost membrane materials with excellent stability at high temperatures and high …

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  • A comprehensive review on the synthesis and

    2021-6-7 · A large amount of spent magnesia–chrome refractories is produced every year from nonferrous metallurgy industry in China. These spent refractories contain not only Mg and Cr but also a large amount of Ag, Pb, Bi, Cu, Sb and other valuable metals. This study proposes a high-efficiency, low-cost and recyclable technology for the treatment of spent magnesia–chromium refractories.

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  • Study of Esterification Waste water Treatment by

    2018-12-12 · In this study, the Esterification wastewater was treated by three kinds of flocculants (poly aluminum chloride (PAC), polymeric ferric sulfate (PFS), poly aluminum ferric chloride (PAFC)), the influences of flocculent concentration, temperature and pH on …

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  • Role of Functional Beverages on Sport Performance

    2018-10-10 · 1. Introduction. Functional foods are defined by the European Commission as “a food product that can only be considered functional if together with the basic nutritional impact it has beneficial effects on one or more function of the human organism thus either improving the general physical conditions or/and decreasing the risk of the evolution of disease” [].

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  • Cost-effective removal of COD in the pre-treatment of ...

    2019-9-26 · Under the optimal operational conditions (pH = 7.5, T = 18 °C) the treatment of wastewater from paper industries by coagulation has led to a reduction of 70% COD for wastewater discharged. In terms of the investigated paper industry wastewater, polyaluminium chloride appears to be most suitable for treatment of high COD concentration.

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  • The Impact of Zeta Potential on the Physical

    2006-5-3 · The physical properties of natural organic matter (NOM) flocs, such as size, growth rate, and strength, were investigated using a laser diffraction particle sizing device. Conditions were set such that varying carbon coagulant ratio and zeta potential could both be investigated. Results demonstrated a link between zeta potential and coagulation and flocculation performance, with the production ...

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  • A Comparative Experimental Study of Alternative Iron ...

    2021-4-14 · The application of THPS and diethylenetriaminepentaacetic acid (DTPA) in well tubulars or pipelines requires laboratory testing to determine the optimal conditions such as dissolver concentration, treatment time, and dissolver/scale (D/S) ratio (cm 3 /g) at 150°F. This evaluation considers oil-wet scales, mixed scales, presence of additives ...

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  • The Impact of Zeta Potential on the Physical

    2006-5-3 · The physical properties of natural organic matter (NOM) flocs, such as size, growth rate, and strength, were investigated using a laser diffraction particle sizing device. Conditions were set such that varying carbon coagulant ratio and zeta potential could both be investigated. Results demonstrated a link between zeta potential and coagulation and flocculation performance, with the production ...

    Get Price
  • Advances and approaches for chemical recycling of

    2020-4-20 · This process uses high temperatures (200–300°C) and elevated pressures (1–4 MPa). Neutral hydrolysis, without the need for stoichiometric acid or base, would be ideal, but these processes generally produce low purity monomers and have relatively slow rate of reaction.

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  • Aluminum Chlorohydrate: | WaterWorld

    1999-3-1 · Aluminum Chlorohydrate: As water treatment plants strive to meet stricter standards, many are turning to aluminum chlorohydrate (ACH) to improve finished water quality, control costs and enhance efficiency. This specialized coagulant also can help reduce chemical solids and alkali usage while helping plant operations. Mar 1st, 1999.

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  • A comprehensive review on the synthesis and

    A desirable IEM is expected to possess high conductivity/low resistance, high ion exchange capacity (IEC), high permselectivity, high dimensional stability/low membrane swelling and water uptake, as well as high chemical, mechanical and thermal properties (Hosseini et al., 2017a; Jiang and Ladewig, 2017; Son et al., 2017). However, it is very ...

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  • Study on the Electro-Osmosis Characteristics of Soft

    2020-9-15 · Chemical electro-osmosis with an injected saline solution can be described as an efficient method for adjusting the soil microstructure and improving soil conductivity, and the effect of electro-osmotic consolidation on soft foundations can also be improved by this novel technology in regard to foundation treatment. To better study the electro-osmotic characteristics of soft clay from Taizhou ...

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  • Study on Synthesis of Acid-Washed Illite Supported

    2019-2-7 · This high-purity silicon slag obtained after pickling illite is referred to as I-SR. Preparation of the Fe 3 O 4 @I-SR Composite 1.5 mmol (0.4 g) of ferric chloride hexahydrate, 1.5 mmol (0.6 g) of ferric nitrate nonahydrate, 2 g of urea, and 0.5 g of I-SR were dissolved in 40 mL of distilled water, and this mixture was stirred with a glass rod ...

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  • Study on the effect of chitosan conditioning on sludge ...

    2019-2-1 · For example, Zhu et al. (Zhu et al. 2007) studied the treatment of excess sludge with PAM (polyacrylamide) - PAFC (polymeric ferric chloride), and found that when the total dosage of flocculants was 190 mg/L, the moisture content in sludge decreased from 97% to 79%, and the sludge volume decreased by 86%.

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  • Ferric sulfate | Fe2(SO4)3 - PubChem

    2020-5-11 · 1 A study of the Preparation and Reactivity of Potassium Ferrate C. Li1, X. Z. Li1*, N. Graham2 1Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, China 2Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK Abstract In the context of water treatment, the ferrate …

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  • Degradation of bisphenol A by potassium ferrate

    2013-3-13 · Fluoride is a persistent and non-biodegradable pollutant that accumulates in soil, plants, wildlife and in human beings. Therefore, knowledge of its removal, using best technique with optimum efficiency is needed. The present survey highlights on efficacy of different materials for the removal of fluoride from water. The most important results of extensive studies on various key factors (pH ...

    Get Price
  • A critical study on efficiency of different materials for ...

    2020-6-23 · A large number of iron ore tailings (IOTs) are produced in steel industry, posing threat to the environment during its storage and disposal. To effectively reutilize Fe in IOTs, we propose a comprehensive utilization scheme: (1) most Fe in IOTs is extracted by concentrated hydrochloric acid to form FeCl3 flocculants; (2) after separation from the FeCl3 flocculants, a small amount of Fe is ...

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  • Comprehensive reutilization of iron in iron ore tailings ...

    2018-5-15 · The aim of this study was to find the best conditions to radiolabel VH-13 with technetium-99m to avoid the potential formation of aggregates during the radiolabeling process. Methods: VH-13 contains a poly-His tag in C-terminal position that is a specific site suitable for labeling with Tc-99m using the tricarbonyl method.

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  • 19th European Symposium on Radiopharmacy and ...

    2016-8-26 · Under the optimal conditions of a pulse duty cycle of 0.3, current density of 35 mA/cm 2, pulse frequency of 3.0 kHz, electrode distance of 1.0 cm, and reaction time of 40 min, the removal efficiencies of chemical oxygen demand (COD), oils and greases, turbidity, total suspended solids, and polyacrylamide reach 98.3, 99.0, 98.8, 98.1 and 94.3% ...

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  • Treatment of oilfield produced water with ...

    2021-3-12 · Extraction of high-purity phosphate (P) from source-separated urine has attracted growing interest, given its potential economic and environmental benefits. In this study, we present an innovative strategy for selectively separating P from synthetic urine containing a high concentration of Cl–, simply by adjusting the charging and discharging processes of a flow-electrode capacitive ...

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  • Selective Recovery of Phosphorus from Synthetic

    2021-3-16 · In order to address freshwater scarcity, seawater desalination technologies have been widely studied in recent years. However, the disposal of desalination brine which contains an even higher concentration of salts than seawater can potentially damage the surrounding environment. Therefore, alternative approaches aiming to recover valuable resources from desalination brine have been …

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  • Improvement of the process of removing phosphorus

    2019-6-1 · At optimal operating conditions of Fe:P (w/w) ratio = 2.40, pH = 6.48 and FMS = 100 rev min − 1, 97.85% removal of phosphorus was achieved. Moreover, compared with the one-off dosage, the three-step process treatment can save 50% of the cost in terms of ferric chloride when treating the same amount of distillery effluent.

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  • Study on Synthesis of Acid-Washed Illite Supported

    2019-2-7 · This high-purity silicon slag obtained after pickling illite is referred to as I-SR. Preparation of the Fe 3 O 4 @I-SR Composite 1.5 mmol (0.4 g) of ferric chloride hexahydrate, 1.5 mmol (0.6 g) of ferric nitrate nonahydrate, 2 g of urea, and 0.5 g of I-SR were dissolved in 40 mL of distilled water, and this mixture was stirred with a glass rod ...

    Get Price
  • Study on the effect of chitosan conditioning on sludge ...

    2019-2-1 · For example, Zhu et al. (Zhu et al. 2007) studied the treatment of excess sludge with PAM (polyacrylamide) - PAFC (polymeric ferric chloride), and found that when the total dosage of flocculants was 190 mg/L, the moisture content in sludge decreased from 97% to 79%, and the sludge volume decreased by 86%.

    Get Price
  • Optimized poly(methyl methacrylate)-mediated

    2018-8-3 · When we used ferric chloride solution (0.1 M, Sigma Aldrich, USA) at 25 °C, instead of the APS to etch the Cu etch process, we observed that the etch rate was high, but the transferred graphene surface was contaminated by an iron-based residue [47, 48], as shown in the optical microscope images in figure S1(a). We also observed, in our ...

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  • Selective Recovery of Phosphorus from Synthetic

    2021-3-12 · Extraction of high-purity phosphate (P) from source-separated urine has attracted growing interest, given its potential economic and environmental benefits. In this study, we present an innovative strategy for selectively separating P from synthetic urine containing a high concentration of Cl–, simply by adjusting the charging and discharging processes of a flow-electrode capacitive ...

    Get Price
  • Magnetic flocculants synthesized by Fe 3 O 4 coated

    2018-12-24 · The formation of amide bonds is one of the most valuable transformations in organic synthesis. Beckmann rearrangement is a well-known method for producing secondary amides from ketoximes. This study demonstrates the rapid synthesis of ketoximes and amides in microdroplets. Many factors are found to affect the yield, such as microdroplet generation devices, temperature, catalysts, …

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  • High-Purity Metals & Alloys - Sigma-Aldrich

    2021-7-1 · Under flow conditions, high (1,000 ppm) and low (5 ppm) chlorine concentrations failed to produce an appreciable reduction in E. coli levels (0.37 log 10 and 0.44 log 10, respectively).

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  • Microdroplets as Microreactors for Fast Synthesis of ...

    2013-11-29 · A newly isolated poly(3-hydroxybutyrate) [P(3HB)] producing strain, ST1C, was identified as Bacillus aryabhattai based on its morphological, biochemical and molecular characteristics. It synthesized and accumulated relatively high amounts of P(3HB). The aim of this work was to establish if it could convert an inexpensive liquid waste product from the production of biodiesel, biodiesel liquid ...

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  • Ferric sulfate | Fe2(SO4)3 - PubChem

    2020-6-23 · A large number of iron ore tailings (IOTs) are produced in steel industry, posing threat to the environment during its storage and disposal. To effectively reutilize Fe in IOTs, we propose a comprehensive utilization scheme: (1) most Fe in IOTs is extracted by concentrated hydrochloric acid to form FeCl3 flocculants; (2) after separation from the FeCl3 flocculants, a small amount of Fe is ...

    Get Price
  • Comprehensive reutilization of iron in iron ore tailings ...

    2021-3-16 · Groundwater treatment sludge is a Fe/Mn-rich waste generated in mass production in a groundwater treatment plant for potable water production. The conventional disposal of sludge, such as direct discharge into river/lake, sea, and landfill, is not environmentally sustainable. Herein, a novel method was proposed to effectively separate Fe/Al and recover Mn via a combined hydrochloric acid ...

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  • Resource Recycling of Mn-Rich Sludge: Effective

    2018-5-15 · The aim of this study was to find the best conditions to radiolabel VH-13 with technetium-99m to avoid the potential formation of aggregates during the radiolabeling process. Methods: VH-13 contains a poly-His tag in C-terminal position that is a specific site suitable for labeling with Tc-99m using the tricarbonyl method.

    Get Price
  • 19th European Symposium on Radiopharmacy and ...

    2006-5-3 · The physical properties of natural organic matter (NOM) flocs, such as size, growth rate, and strength, were investigated using a laser diffraction particle sizing device. Conditions were set such that varying carbon coagulant ratio and zeta potential could both be investigated. Results demonstrated a link between zeta potential and coagulation and flocculation performance, with the production ...

    Get Price
  • A review of resource recovery from seawater

    2021-6-3 · A large amount of dust is formed as one of the primary by-products during the blast furnace ironmaking process. Besides iron and carbon, it contains a variety of valuable metals such as zinc, lead, and indium widely applied in many industry fields. However, it is difficult to recycle and reutilize blast furnace dust (BFD) due to complex composition, fine particle size, and strong hydrophobic ...

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  • The Impact of Zeta Potential on the Physical

    Pretreatment. Myat et al. conducted a testing study to evaluate the pretreatment of oxidation and coagulation on ceramic microfiltration (CMF) and subsequently reverse osmosis (RO) in an advanced treatment train for water reuse.The use of coagulation with either ozone (O 3) or ultraviolet hydrogen peroxide (UV/H 2 O 2) and coagulation with poly aluminum chloride helped to sustain a high flux ...

    Get Price
  • Frontiers | Preparation and Characterization of ...

    2016-8-26 · Under the optimal conditions of a pulse duty cycle of 0.3, current density of 35 mA/cm 2, pulse frequency of 3.0 kHz, electrode distance of 1.0 cm, and reaction time of 40 min, the removal efficiencies of chemical oxygen demand (COD), oils and greases, turbidity, total suspended solids, and polyacrylamide reach 98.3, 99.0, 98.8, 98.1 and 94.3% ...

    Get Price
  • Treatment of oilfield produced water with ...

    2013-3-13 · Fluoride is a persistent and non-biodegradable pollutant that accumulates in soil, plants, wildlife and in human beings. Therefore, knowledge of its removal, using best technique with optimum efficiency is needed. The present survey highlights on efficacy of different materials for the removal of fluoride from water. The most important results of extensive studies on various key factors (pH ...

    Get Price
  • A critical study on efficiency of different materials for ...

    2019-6-15 · The PAS and GASA prepared under the optimal conditions were subjected to SEM, as shown in Figure 7. The SEM images of the PAS and GASA showed that the surface morphology of the two samples were essentially the same, and the alum …

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  • Study on the preparation of granular alum sludge

    Pretreatment. Myat et al. conducted a testing study to evaluate the pretreatment of oxidation and coagulation on ceramic microfiltration (CMF) and subsequently reverse osmosis (RO) in an advanced treatment train for water reuse.The use of coagulation with either ozone (O 3) or ultraviolet hydrogen peroxide (UV/H 2 O 2) and coagulation with poly aluminum chloride helped to sustain a high flux ...

    Get Price
  • Membrane processes - Arabi - 2020 - Water

    2018-5-15 · The aim of this study was to find the best conditions to radiolabel VH-13 with technetium-99m to avoid the potential formation of aggregates during the radiolabeling process. Methods: VH-13 contains a poly-His tag in C-terminal position that is a specific site suitable for labeling with Tc-99m using the tricarbonyl method.

    Get Price
  • 19th European Symposium on Radiopharmacy and ...

    2013-6-10 · The 16 th International Conference on Positron Annihilation (ICPA-16) was held at the University of Bristol, United Kingdom during 19-24 August, 2012. This triennial conference is the foremost gathering of the Positron Annihilation Physics community and it was hosted in the UK for the first time since the series of meetings first started back in 1965.

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  • Journal of Physics: Conference Series, Volume 443,

    2017-3-2 · Due to their unique properties, lignosulfonates have a wide range of uses, such as animal feed, pesticides, surfactants, additives in oil drilling, stabilizers in colloidal suspensions, and as plasticizers in concrete admixtures. 13, 14, 31-34 However, the majority of pulp mills employ kraft technology for pulp production, and thus, kraft lignin is more readily available for value-added ...

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  • Production and Application of Lignosulfonates and ...

    2020-2-11 · The change regulations of the smelting parameters in a gas-injection blast furnace are investigated using theoretical calculations. The results show that when the volume of gas injected, the oxygen enrichment rate and the theoretical combustion temperature of tuyere are 600 m 3 /tHM, 10% and 1950~2200 ∘ C, respectively, the conditions meet the smelting requirements of a blast furnace. With ...

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  • Study on the Appropriate Production Parameters of a

    Introducing chloride anions as the capping agent yielded octapod NPs with a unique structure, which achieve extremely high T 2 relaxivity through the large effective radii of their magnetic cores. As mentioned above, most of the commercially available T 1 contrast agents are …

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  • Frontiers | Preparation and Characterization of ...

    2018-10-17 · Chemicals. Poly-aluminum chloride (Al 2 (OH) n Cl 6−n.YH 2 O, Al 2 O 3 = 30%wt, basicity = 65% and pH = 3) was used as a coagulant and anionic (A 300), cationic (C 270) and nonionic polymers, as the coagulant aids were provided from AquaTech Company, Switzerland.. Preparation of solution. In order to prepare a 10 percent clear solution for coagulant, 10 g of PAC was dissolved to 100 mL of ...

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  • High-Purity Metals & Alloys - Sigma-Aldrich

    2018-5-31 · high level of adaptation to arid and semi-arid environmental conditions and its different uses, the Opuntia ficus-indica fruit is an important raw material for the industry (Habibi et al. 2008). The main studies on Opuntia fruits were concerned with the chemical analysis of pulp, skin and seeds *Corresponding author. Email: [email protected]

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  • Optimization and economic evaluation of modified ...

    2017-3-2 · Due to their unique properties, lignosulfonates have a wide range of uses, such as animal feed, pesticides, surfactants, additives in oil drilling, stabilizers in colloidal suspensions, and as plasticizers in concrete admixtures. 13, 14, 31-34 However, the majority of pulp mills employ kraft technology for pulp production, and thus, kraft lignin is more readily available for value-added ...

    Get Price
  • Extraction of phenolic compounds and in vitro

    2020-7-9 · A typical commercial neat PVDF membrane will have a pore size between 0.2 and 0.45 μm. The smaller size membrane are typically used for high purity medical applications with high binding of proteins and nucleotides. Duong et al 26 obtained SBS membranes via electrospinning with an average pore size of 0.58 μm. The values obtained for the neat ...

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  • Production and Application of Lignosulfonates and ...

    2018-6-28 · The objectives of this study were: (1) to evaluate chitosan flocculation performance in the harvesting of C. vulgaris biomass and determine its optimal dose, (2) to disclose the sedimentation properties of C. vulgaris biomass flocculated by chitosan, (3) to reveal the recyclability of the spent medium from flocculation to regrow microalgae and ...

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  • 2.3. Algal production - FAO

    Pretreatment. Myat et al. conducted a testing study to evaluate the pretreatment of oxidation and coagulation on ceramic microfiltration (CMF) and subsequently reverse osmosis (RO) in an advanced treatment train for water reuse.The use of coagulation with either ozone (O 3) or ultraviolet hydrogen peroxide (UV/H 2 O 2) and coagulation with poly aluminum chloride helped to sustain a high flux ...

    Get Price
  • Electrospun Al2O3 hydrophobic functionalized

    2019-9-5 · The carbon shell could also strengthen the connections between the active material and the current collector to maintain the integrity of the electrode. 62, 63 This study uses micron-sized silicon instead of the much more expensive nanoscale silicon, and the preparation method is easy to scale up, making it suitable for future industrial ...

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