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production of study on optimal conditions of poly ferric chloride in china

  • Study on optimal conditions of poly ferric chloride

    2021-1-1 · Poly ferric chloride (PFC) solution with general formula [Fe 2 (OH) nCl 6-n] m when dissolved will produce 4 polymer particles: Fe 2 (OH) 2 4+, Fe 3 (OH) 4 5+, Fe x (OH) y (3x-y) + and Fe x O y (OH) x + r (2x-2y-r). is supplied by Saigon Green Environment & Construction Co. Ltd in Tan Phu District, Ho Chi Minh City. The tested PFC has been prepared to use as the concentration of 5% (50 g of PFC per …

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  • Study on optimal conditions of poly ferric chloride

    Study on optimal conditions of poly ferric chloride (PFC) dosage treating tannery wastewater Tannery wastewater was considered as a heavily industrial wastewater with very high amount of wastewater discharged everyday but not well-treating.

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  • 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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  • Fabrication and characterization of poly(ferric chloride ...

    2014-4-2 · As a highly positively charged organic polymer, poly(epichlorohydrin-dimethylamine) [P(ECH-DAM)] can be considered as an effective flocculant during water/wastewater treatment because of less sludge production and less susceptibility to external environment compared to the application of inorganic coagulants . Yet, the single utilization of organic P(ECH-DAM) also accompanied with disadvantages …

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  • Simultaneous presence of poly titanium chloride and

    2020-8-1 · Given the PTC coagulant optimal dosage, to determine the effect of precipitated flocs recirculation on reducing the coagulant dosage without reducing As(V) removal efficiency, the PTC coagulant doses of 10, 15, and 20 mg/L along with the amounts of precipitated flocs recirculation (5, 10, 15, and 20 %), under optimal conditions and the presence of Fe 2 O 3-Mn 2 O 3 nanocomposite, were …

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  • Coagulation/flocculation process and sludge

    The volume of sludge produced, when ferric chloride was used solely, was higher compared to the use of combination of polyelectrolyte and FeCl(3).6H(2)0. The combined use of coagulant and polyelectrolyte resulted in the production of sludge volume with reduction of 60% of the amount produced, when coagulant was solely used for the treatment.

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  • Preparation and coagulation performance of poly

    2011-3-1 · This study aims to investigate the preparation, characterization and coagulation performance of poly-ferric-aluminum-silicate-sulfate (PFASS) with different silicon quantity from fly ash. After the structure and morphology analysis of the samples were carried out by infrared spectra (FT-IR), X-ray diffraction (XRD) and transmission electron microscopy (TEM) microphotographs.

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  • Study of the coagulation process in wastewater

    The optimal conditions were as follows: Coagulant dosage of 871 mg/L, flocculent dosage of 22.3 mg/L and pH 8.35. The study of dairy effluents treatment by EC was carried out using aluminum electrodes. The analysis of the filtrates showed that the COD was reduced to 61% while the removal of phosphorus, nitrogen contents and turbidity were 89, 81 and 100%, respectively.

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  • Preparation and coagulation efficiency of

    2011-7-1 · The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifyin…

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  • Pretreatment for seawater desalination by flocculation ...

    2011-12-1 · Research Highlights The aim is to assess a new flocculent of modified poly ferric silicate (PFSi-δ) performance for seawater desalination. The PFSi-δ performance was compared with FeCl 3 performance. PFSi-δ was better than FeCl 3 in turbidity, dissolved organic carbon (DOC), particularly for hydrophilic organic carbon removal. DOC removal by PFSi-δ at 1.2 mg Fe 3+ /L was 68%, and higher ...

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  • (PDF) Effectiveness of poly Aluminium ferric

    Effectiveness of poly Aluminium ferric chloride for turbidity and color removal from low to medium turbid water. 2014. Afshin Ebrahimi. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. READ PAPER.

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  • Production of Industrial Coagulant (Poly Aluminium ...

    2019-7-5 · obtained from the literature. Reports show that Ferric chloride, alum and aluminium chloride has optimum mixing speed of 120, 140 and 140rpm at pH 4, 4 and 6 at 35℃. . Flocculation of latex effluent was carried conditions. Results and Discussion Preparation of poly aluminium chloride (PAC) From 20 cans, 190 g of aluminium powder was

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  • Fabrication and characterization of poly(ferric

    2014-4-2 · Derived mainly from processes including bleaching, rinsing, dyeing, printing and starching, the printing, and dyeing, wastewater was characterized by high chromaticity, large emission, complex composition, high levels of organic pollutants, and poor biodegradability [1–3].Due to the presence of toxic (hazardous) substances in dyeing wastewater and its severe contamination to the environment ...

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  • Global Poly Ferric Chloride Market Segment

    Global Poly Ferric Chloride Market is expected to grow at a CAGR x.x% over the next ten years, and will reach at US XX.X Mn in 2028, from US XX.X Mn in 2018

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  • Preparation and Characteristics of Polyaluminium

    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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  • Production of a Poly-ferric Sulphate Chemical

    2009-8-22 · The aim of this work was to produce a ferric sulphate rich solution from acidic coal mine drainage that could be used as coagulant. Precipitating the iron at pH 3.8, followed by dissolution in sulphuric acid, produced a coagulant consisting of 12.4% iron and 1.3% aluminium. Water treatment tests proved that this coagulant was as efficient as the coagulant chemicals conventionally used in water ...

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  • Effect of pH on floc properties and membrane

    2015-7-1 · Ferric chloride (FeCl 3) and polyferric chloride with basicity of 1.0 and 2.2 (denoted as PFC 10 and PFC 22) were used as coagulants and Fe (III) species in them was measured by a timed complexation spectroscopy method. Floc properties under four pH conditions were evaluated using a laser diffraction particle sizing device.

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  • Synthesis and coagulation performance of

    2018-6-16 · The aim of this work was to study the combination of an inorganic pre-polymerized coagulant (polyaluminum chloride [PACl]) with ferric species and polysilicic acid in various mixing orders Al/Fe/Si and OH/Al molar ratios, by applying two polymerization techniques for the production of a unique reagent, representing a more efficient coagulant than the respective commercially available (PACl-18 ...

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  • Study on the mechanism of production of γ-PGA

    2021-4-9 · Microorganisms, culture media and culture conditions. Bacillus subtilis natto was used throughout the experimental study and was cultivated in the following medium: 20 g soybeans, 1.5 g saccharose, 0.4 g glutamate, 0. 025 g MgSO 4 ·7H 2 O, 0.025 g K 2 HPO 4 ·3H 2 O, 0. 05 g calcium chloride. The seed culture (5%, v/v) was transferred into 50 mL of the fermentation medium in a 250 …

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  • Comprehensive Recovery of Valuable Metals From

    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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  • Global Poly Ferric Chloride (PFC) Market Research

    12.2.2 Europe Poly Ferric Chloride (PFC) Production, Revenue, Consumption, Export and Import Forecast (2018-2025) 12.2.3 China Poly Ferric Chloride (PFC) Production, Revenue, Consumption, Export and Import Forecast (2018-2025) 12.2.4 Japan Poly Ferric Chloride (PFC) Production, Revenue, Consumption, Export and Import Forecast (2018-2025)

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  • Fabrication and characterization of poly(ferric chloride ...

    2014-4-2 · Derived mainly from processes including bleaching, rinsing, dyeing, printing and starching, the printing, and dyeing, wastewater was characterized by high chromaticity, large emission, complex composition, high levels of organic pollutants, and poor biodegradability [1–3].Due to the presence of toxic (hazardous) substances in dyeing wastewater and its severe contamination to the environment ...

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  • Ferric Chloride (FeCl3) - Formula, Test, Colour, Uses ...

    2015-6-17 · Where w 3 represents the weight of obtained methyl lactate, M(PLA)and M(methyl lactate) are the molar masses of the repeating unit of PLA and methyl lactate respectively.. Characterization of the main product. In order to confirm the structure of main product of methanolysis, the FTIR spectra of methyl lactate standard sample and the main product were recorded (Fig. 1).

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  • Ferric chloride as an efficient and reusable catalyst for ...

    The report on Poly Aluminium Ferric Chloride Materials Market offers in-depth analysis of market trends, drivers, restraints, opportunities etc. Along with qualitative information, this report includes the quantitative analysis of various segments in terms of market share, growth, opportunity analysis, market value, etc. for the forecast years.

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  • Global Poly Aluminium Ferric Chloride Materials

    The optimal conditions were as follows: Coagulant dosage of 871 mg/L, flocculent dosage of 22.3 mg/L and pH 8.35. The study of dairy effluents treatment by EC was carried out using aluminum electrodes. The analysis of the filtrates showed that the COD was reduced to 61% while the removal of phosphorus, nitrogen contents and turbidity were 89 ...

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  • Study of the coagulation process in wastewater

    2021-7-13 · 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

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  • Comparing Aluminium Sulfate and Poly-Aluminium

    2017-10-18 · ATS 835 is a great replacement for alum because it does an amazing job, but with a much, much smaller dose. For example, a water treater who feeds 25 parts of alum (or a related product) might get away with feeding just 2-3 parts of ATS 835. And because ATS 835 is completely soluble, it will hardly increase solids due to the coagulant.

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  • Alum and Ferric Chloride: Pros, Cons, and Substitutes

    2021-4-9 · Microorganisms, culture media and culture conditions. Bacillus subtilis natto was used throughout the experimental study and was cultivated in the following medium: 20 g soybeans, 1.5 g saccharose, 0.4 g glutamate, 0. 025 g MgSO 4 ·7H 2 O, 0.025 g K 2 HPO 4 ·3H 2 O, 0. 05 g calcium chloride. The seed culture (5%, v/v) was transferred into 50 mL of the fermentation medium in a 250 …

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  • ISSN: 0975-766X CODEN: IJPTFI Available Online through ...

    2016-7-24 · The results showed that after using the poly aluminum chloride, ferrous sulfate, ferric chloride and aluminum sulfate coagulants, in the turbidity of 200, 100, 50, 20, 10 NTU, the pH level have reduced in a way that by increasing each mg/l poly aluminum chloride, ferrous sulfate, ferric chloride about 0.01 unit pH have reduced.

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  • Global Poly Aluminium Ferric Chloride Materials

    2021-3-10 · Abstract:-The prime objective of Poly Aluminium Ferric Chloride Materials Market report is to help the user understand the market in terms of its definition, segmentation, market potential, influential trends, and the challenges that the market is facing with 10 major regions and 50 major countries. Deep researches and analysis were done during the preparation of the report.

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  • UNIVERSITY OF ILLINOIS

    from aqueous mixtures of ferric chloride and hydrochloric acid. They determined a limited range of reaction conditions for rod production: [FeCl3]i - 0.009 - 0.45 M pHi - 0.5 - 2.5 [HC1]^ * 0.001 - 0.30 M Temperature : <- 100°C Also, they concluded that as the initial solution pH is increased, the rods become shorter in length and more uniform in

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  • Global Polyaluminium Chloride (PAC) Market 2019

    Global Polyaluminium Chloride (PAC) market size will increase to xx Million US by 2025, from xx Million US in 2017, at a CAGR of xx% during the forecast period. In this study, 2017 has been considered as the base year and 2018 to 2025 as the forecast period to estimate the market size for Polyaluminium Chloride …

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  • Arsenic removal by coagulation using ferric chloride

    Aims: In this study, the effect of arsenite and arsenate removal in synthetic water by coagulation using ferric chloride (FeCl 3) as coagulant and chitosan as coagulant aid were investigated. b>Materials and Methods: A conventional jar test apparatus was used to evaluate the coagulation process. The effects of different conditions of pH (5.5-9), coagulant doses of FeCl 3 0-60 mg/l), Arsenic ...

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  • Production of Polyhydroxybutyrate (PHB) and Factors ...

    2020-12-4 · The monomer units of PHA can be classified into two groups based on the number of carbon atoms: short-chain and medium-chain length PHAs. The length of the monomer unit plays a critical role in the resulting polymer properties and therefore, prior knowledge of the monomer chemical structure is required to target specific properties of the material for a number of different applications.

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  • Effects of chloride ions on corrosion of ductile iron

    2017-7-31 · Chloride is reported to play a significant role in corrosion reactions, products and kinetics of ferrous metals. To enhance the understanding of the effects of soil environments, especially the ...

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

    2019-2-1 · Activated sludge process is one of the main widely used methods in domestic sewage and industrial waste water treatment currently. A large amount of residual sludge is produced during domestic sewage treatment with the activated sludge process (Tang & Zhang 2014).The residual sludge contains a lot of nutrients, such as nitrogen, phosphorus, and organic matter, and at the same time contains a ...

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  • On the importance of pH value in coagulation |

    2019-4-5 · However, in this case, the optimal pH for a mixture of HS + COM (pH 5.0–6.2) related to optimal pH ranges for the coagulation of HS (5.0–6.0) and COM peptides/proteins (5.0–6.7). The impact on coagulation of interactions between AOM and other impurities present in raw water are detailed by Pivokonský et al..

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  • Effect of polymerization conditions on

    2021-5-20 · Solution-cast films of ClO4−-doped oligo(3-methoxythiophene) exhibit a luster similar to that of metallic gold; however, the effects of synthetic conditions on the physicochemical properties of ...

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  • Photofermentative Poly-3-Hydroxybutyrate Production

    2019-9-4 · Article Photofermentative Poly-3-Hydroxybutyrate Production by Rhodopseudomonas Sp. S16-VOGS3 in a Novel Outdoor L-Shaped Row Photobioreactor Pietro Carlozzi 1, *, Maurizia Seggiani 2, Patrizia Cinelli 2, Norma Mallegni 2, Andrea Lazzeri 2 1 Institute of Ecosystem Study, CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino (FI), Italy; [email protected]

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  • Efficient production and secretion of oxaloacetate

    2017-11-21 · The alkaliphilic, halophilic bacterium Halomonas sp. KM-1 can utilize glucose for the intracellular storage of the bioplastic poly-(R)-3-hydroxybutyric acid (PHB) and extracellular secretion of pyruvate under aerobic conditions. In this study, we investigated the effects of sodium chloride concentration on PHB accumulation and pyruvate secretion in the KM-1 strain and, unexpectedly, …

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  • Optimization of gamma-aminobutyric acid

    They found that optimal conditions for producing the maximum amount of GABA were observed in a mixture of brown rice, soy sauce, and skim milk with the ratio of 33, 58 and 9 mmol, respectively. In another research , Tung et al. examined the optimal conditions for GABA production by L. plantarum. Independent variables in this research included ...

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  • Feasibility of using Chlorella vulgaris for the

    Driven by the increase in industrialization and population, the global demand of energy and material products is steadily growing. Microalgae have come into prominence in the past several decades due to their ability to utilize solar energy to fix atmospheric carbon dioxide, and produce biomass and lipids at productivities much higher than those possible with terrestrial biomass.

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  • Effect of polymerization conditions on

    2021-5-20 · Solution-cast films of ClO4−-doped oligo(3-methoxythiophene) exhibit a luster similar to that of metallic gold; however, the effects of synthetic conditions on the physicochemical properties of ...

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  • High-poly-aluminum chloride sulfate coagulants

    2020-2-18 · High-poly-aluminum chloride sulfate (HPACS) coagulants with different [SO 4 2−]/[Al 3+] molar ratio (S) were prepared and proved to have high coagulation efficiency for the removal of humic acid and strong stability for storage and application.The results showed that the higher the SO 4 2− addition, the bigger the aluminum polymerization particles and the more the polymerization Al c ...

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  • Microalgae Chlorella vulgaris biomass harvesting by ...

    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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  • Xiaoguang Meng - Stevens Institute of Technology

    Development of water purification packets consisting of ferric iron and hypochlorite and a household filtration technique for removal of arsenic in drinking water and for disinfection. The technique was successfully demonstrated and implemented in Bangladesh in the early 2000s.

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  • Preparation of FeS 2 /TiO 2 nanocomposite films

    2021-4-5 · Figure 6 shows the XPS spectra of FeS 2 /TiO 2 nanocomposite film prepared under hydrothermal reaction time of 12 h, ferric chloride concentration of 0.15 mmol/L and …

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  • Frontiers | High-Level Extracellular Expression of a

    2021-3-11 · N-acetyl-β-D glucosamine (GlcNAc) is wildly used in cosmetics, nutraceuticals and pharmaceuticals. The traditional chemical process for GlcNAc production from chitin causes serious acidic pollution. Therefore, the enzymatic hydrolysis becomes a great promising and alternative strategy to produce GlcNAc. β-N-acetylglucosaminidase (NAGase) can hydrolyze chitin to produce GlcNAc.

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  • Preparation of poly ferric sulfate and the application

    2013-9-26 · 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. In this paper, three samples were synthesized by different methods: sodium nitrite catalytic oxidation method (PFS-1), one-step method (PFS-2) and nitric acid oxidation method (PFS-3).

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  • RSC Advances

    76 Therefore, this study aims to develop an optimized approach for synthesizing ferric tannate, which can accelerate the reaction between NH 4 +-N and NO 2 77 −-N. Tannic 78 acid and ferric chloride were used as the raw materials to synthesize ferric tannate 79 under the combined condition of room temperature and neutral pH. Moreover, Fourier

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  • Purification and Characterization of a Novel

    Under optimal conditions, the activity of AlgA reached up to 8306.7 U/mg, which is the highest activity recorded for alginate lyases. Moreover, the enzyme was stable over a broad pH range (5.0-10.0), and its activity negligibly changed after 24 h of incubation at 40 °C. AlgA exhibited high activity and affinity toward poly-β-d-mannuronate ...

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  • High-poly-aluminum chloride sulfate coagulants

    2020-2-18 · High-poly-aluminum chloride sulfate (HPACS) coagulants with different [SO 4 2−]/[Al 3+] molar ratio (S) were prepared and proved to have high coagulation efficiency for the removal of humic acid and strong stability for storage and application.The results showed that the higher the SO 4 2− addition, the bigger the aluminum polymerization particles and the more the polymerization Al c ...

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  • 2.3. Algal production

    2019-3-19 · A novel inorganic polymer flocculant, biopolymeric ferric sulfate (BPFS), was prepared by immobilization technology of microorganisms and by oxidation of ferrous sulfate using domestic Thiobacillus ferrooxidans ( T. f ) under acidic condition. T. f was isolated on the agarose single-plate medium, which exhibited an unusual trait on the utilization of low concentration of the nitrogen source ...

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  • Immobilized Microbial Catalytic Oxidation

    2020-10-20 · Optimal culture conditions (in regard to dissolved oxygen concentration, pH, nutrient composition, and salt concentrations) are highly restrictive. A variety of control strategies have been evaluated for achieving more efficient magnetosome yield. Optimized culture conditions for growth of MSR-1, based on studies to date, are summarized in Fig. 1.

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  • Improved methods for mass production of

    2021-2-23 · Poly Aluminum Chloride (PAC) is an inorganic polymer manufactured by countering aluminum with hydrochloric acid. The poly aluminum chloride market is projected to grow at a 5.3 % CAGR during the ...

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  • Frontiers | The Role of Iron Regulation in ...

    2021-3-11 · N-acetyl-β-D glucosamine (GlcNAc) is wildly used in cosmetics, nutraceuticals and pharmaceuticals. The traditional chemical process for GlcNAc production from chitin causes serious acidic pollution. Therefore, the enzymatic hydrolysis becomes a great promising and alternative strategy to produce GlcNAc. β-N-acetylglucosaminidase (NAGase) can hydrolyze chitin to produce GlcNAc.

    Get Price
  • Preparation of poly ferric sulfate and the application

    2013-9-26 · 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. In this paper, three samples were synthesized by different methods: sodium nitrite catalytic oxidation method (PFS-1), one-step method (PFS-2) and nitric acid oxidation method (PFS-3).

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  • RSC Advances

    76 Therefore, this study aims to develop an optimized approach for synthesizing ferric tannate, which can accelerate the reaction between NH 4 +-N and NO 2 77 −-N. Tannic 78 acid and ferric chloride were used as the raw materials to synthesize ferric tannate 79 under the combined condition of room temperature and neutral pH. Moreover, Fourier

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  • Optimization and economic evaluation of modified ...

    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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  • Evaluation of optimum conditions for pachyman

    Evaluation of optimum conditions for pachyman encapsulated in poly(D,L-lactic acid) nanospheres by response surface methodology and results of a related in vitro study Sisi Zheng, Li Luo, Ruonan Bo, Zhenguang Liu, Jie Xing, Yale Niu, Yuanliang Hu, Jiaguo Liu, Deyun Wang Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Nanjing Agricultural University ...

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  • Production of poly-γ-glutamic acid by a

    2017-11-25 · Poly-γ-glutamic acid (γ-PGA) is a promising microbial polymer with wide applications in industry, agriculture and medicine. In this study, a novel glutamate-independent γ-PGA producing strain with thermotolerant characteristics was isolated and identified as Bacillus subtilis GXG-5, then its product was also characterized. The fermentation process was optimized by single-factor tests, and ...

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  • Coagulation and Flocculation in Water and

    2020-10-20 · Optimal culture conditions (in regard to dissolved oxygen concentration, pH, nutrient composition, and salt concentrations) are highly restrictive. A variety of control strategies have been evaluated for achieving more efficient magnetosome yield. Optimized culture conditions for growth of MSR-1, based on studies to date, are summarized in Fig. 1.

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  • 2.3. Algal production

    2013-8-1 · Bioflocculants effect the aggregation of suspended solutes in solutions thus, a viable alternative to inorganic poly-ionic and synthetic organic flocculants which are associated with deleterious health problems. Consequently, a consortium of two bacteria species were evaluated for optimized bioflocculant yield following the inadequacies of axenic cultures. 16S rDNA nucleotide sequencing and ...

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