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2008-4-1 · By using this method for the recovery of P(3HB) from R. eutropha, Chen et al. obtained a purity of 98.7% and a recovery yield of 93.3% under the following optimal conditions: 0.12:1 surfactant-dry biomass ratio, 0.08:1 chelate (EDTA disodium salt)-dry biomass ratio, pH 13, 50 °C during a treatment time of 10 min.
Get Price2005-1-1 · The parameters chosen to establish the optimal conditions of the process were: COD, BOD 5 and TSS. The analytical methods were taken from the Standard Methods for the Examination of Water and Wastewater . Once the optimal conditions had been established, several parameters were measured in order to assess the coagulation–flocculation process: particle number and size, sludge volume, …
Get Price2019-1-20 · As shown, the best efficiency for PAC + Fe-Mn coagulant-nono oxide was observed in pH 7 and for PFC + Fe-Mn in pH 9. In optimal pH range, the residual turbidity was the lowest possible (1 and 5 NTU for PAC + Fe-Mn and PFC + Fe-Mn, respectively) (Fig. 3b). The ANOVA analysis revealed that there were significant differences between pH levels for each of the coagulants (p ≤ 0.001).
Get Price2021-2-13 · Results showed that the optimal operating conditions were a feed flow rate of 90 mL·min −1 at 2.5 A, with 93.62% hydrogen purity and 60.45% hydrogen recovery. The hydrogen purity was enhanced by increasing the temperature from 25 to 50 °C. However, the hydrogen permeation was much lower at 50 °C compared to 25 °C.
Get Price2021-1-1 · Another study utilizing continuous PEF treatment with a 2 μs pulse and bipolar square pulses on the same mushroom achieved a higher yield of 49 % protein, 51 % total polyphenols and 98 % polysaccharide at the optimal conditions of 20 °C inlet temperature and 272 μs electric pulses of 800 Hz and 34.8 kV/cm field intensity compared to conventional WE at 95 °C for 1 h (45 %, 26 %, and 56 %) …
Get Price2021-6-7 · Using the gradient of proposed equations, the way to achieve higher efficiency with the least change of the mentioned variables was expressed. The results showed that under optimal conditions, operating costs would be reduced by 54,324 IRR per treatment of 1 m 3 of leachate while achieving affordable COD removal efficiency. Also, the amount of sludge formed as one of the limiting …
Get Price2020-8-20 · Advances in understanding the relation between nutrition and health to achieve optimal health and reduce the risk of disease have led to the development of high‐fat foods. In this study, the maximum production of GABA using L. brevis A3 strain was obtained in culture medium containing 14.96% whey with 4.95% MSG at 37°C and for 48 hr at 53.5 ppm. The production of many amino …
Get Price2015-10-1 · Green et al. developed crystalline silicon on glass (CSG) solar cell technology aiming to combine the advantages of standard silicon wafer-based technology with that of thin-films, with the lowest likely manufacturing cost of these contenders and confirmed the efficiency for small pilot line modules already in the 8–9% energy conversion efficiency range, on the path to 12–13%.
Get Price2016-3-15 · In this study, after adding coagulants, coagulation mechanism showed the properties of charge neutralization coagulation due to low operation pH. Determining optimal coagulant dosage. Effect of coagulant doses on turbidity removal efficiency was also investigated and the results are presented in Fig. 3. The experiments were performed in the range of (0.1–1.2) g/L of coagulant concentrations at …
Get Price2008-4-1 · Improvement of these new extraction and purification methods should lead to an optimal recovery of P(3HB), with a high purity and recovery level at a low production cost. Acknowledgments The authors would like to thank the National Science Council of Taiwan (NSC 95-2622-E-155-001), and the Région Rhône Alpes for their financial support.
Get Price2021-1-1 · Another study utilizing continuous PEF treatment with a 2 μs pulse and bipolar square pulses on the same mushroom achieved a higher yield of 49 % protein, 51 % total polyphenols and 98 % polysaccharide at the optimal conditions of 20 °C inlet temperature and 272 μs electric pulses of 800 Hz and 34.8 kV/cm field intensity compared to ...
Get Price2021-2-13 · Results showed that the optimal operating conditions were a feed flow rate of 90 mL·min −1 at 2.5 A, with 93.62% hydrogen purity and 60.45% hydrogen recovery. The hydrogen purity was enhanced by increasing the temperature from 25 to 50 °C. However, the hydrogen permeation was much lower at 50 °C compared to 25 °C.
Get Price2018-6-28 · 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 ...
Get PriceThe details of the process are as follows: 10 mL of 1 M ferric chloride and 2.5 mL of 2 M ferrous chloride were added to a flask containing 50 mL of 1 M hydrochloric acid under stirring conditions at 1200 rpm . After the addition of 25 mL of deionized (D) water to the flask, 50 mL of 3 M ammonium hydroxide was added drop-wise to the solution at ...
Get Price2021-7-7 · Types of coagulants and flocculants. SUEZ offers a comprehensive portfolio of coagulants and flocculants that aid in the clarification process. Whether you need coagulants or flocculants, liquid, emulsion or powders, cationic or anionic products, SUEZ has a cost …
Get Price2020-9-11 · One of the most important challenges in developing countries is to provide cheap and safe drinking water. Among different pollutants, turbidity as a water quality indicator is the main parameter that must be determined before the selection of treatment techniques (Treacy 2019; Antov et al. 2018).Materials such as clay and silt along microorganisms can cause turbidity, which is one of the …
Get PriceWith three resins tested in this study, experimental results revealed that the effluent of the resin column could be sufficient for BMED to produce acid and base solutions with high purity. Luo, Jia, Liu, and Wang ( 2019 ) developed an online electrodialysis method with mono-cation permselectivity with the potential to be applied on saline ...
Get PricePretreatment. 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 Price2021-6-24 · Dr Tomas Ramirez Reina. Senior Lecturer in Chemical and Process Engineering Director of Employability. MChem, MSc, PhD, AMIChemE, FHEA. +44 (0)1483 686597. [email protected] 30 BC 02.
Get Price2018-8-3 · 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 ...
Get Price2018-6-28 · 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 ...
Get Price2020-9-28 · Study Confirms One of the World’s Lowest Cost Sources of Sustainable Nickel and Cobalt Clean TeQ to Host Battery Metals Day on 1 October 2020 MELBOURNE, Australia, Sept. 27, 2020 (GLOBE NEWSWIRE ...
Get Price2018-5-15 · 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 Price2018-12-18 · Online monitoring of U. maydis growth on galacturonic acid. As first step, the growth of the protease deficient strain U. maydis AB33P5ΔR on galacturonic acid was characterized by online monitoring of the metabolic activity. AB33 is known to grow in a stable unicellular state making it applicable up to fermenter scale [].Furthermore, the strain produces less lipids compared to other U. …
Get Price2020-11-4 · In another study conducted in Europe, production cost was estimated to be €4.95, 4.16, and 5.96/kg of biomass from open ponds, horizontal tubular and flat panel photobioreactors, respectively . Even the biomass production cost drops down to 0.5 kg, still scaling-up of microalgae for standalone production of biofuel is economically ...
Get PriceWith three resins tested in this study, experimental results revealed that the effluent of the resin column could be sufficient for BMED to produce acid and base solutions with high purity. Luo, Jia, Liu, and Wang ( 2019 ) developed an online electrodialysis method with mono-cation permselectivity with the potential to be applied on saline ...
Get Price2021-7-7 · Learn more about ion exchange technology, water demineralization, mixed bed ion exchange systems, ion exchange softening processes and more in the eighth chapter of SUEZ's industrial water treatment handbook.
Get Price2020-9-28 · Study Confirms One of the World’s Lowest Cost Sources of Sustainable Nickel and Cobalt Clean TeQ to Host Battery Metals Day on 1 October 2020 MELBOURNE, Australia, Sept. 27, 2020 (GLOBE NEWSWIRE ...
Get PriceHowever, because of high cost and incapable of repeated use, make it harder to combating oil spillage effectively and to suite environment friendly material. This study was done to assess waste tyre granulates and polypropylene (PP) fibre as oil sorbent in terms of …
Get Price2021-6-24 · Dr Tomas Ramirez Reina. Senior Lecturer in Chemical and Process Engineering Director of Employability. MChem, MSc, PhD, AMIChemE, FHEA. +44 (0)1483 686597. [email protected] 30 BC 02.
Get Price2004-10-14 · dosage of > 20 mg/L for ferric chloride, > 60 mg/L for alum and < 18 mg/L for poly-aluminum chloride for effective pretreatment. Their results demonstrated reduced membrane fouling for both under-dose and optimal dosages of coagulants. Incorporating a sedimentation unit as a part of pretreatment was found to improve the membrane performance.
Get Price2018-5-15 · 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 PriceThe switch to an aqueous processing route could also lead to cost reduction of over 90%, as shown by a cost study of Wood et. al. Therefore, high efforts are made to solve the challenges of an aqueous cathode production, which are on one hand attributed to side reactions of the moisture sensitive high-energy cathode materials (e.g., Ni-rich ...
Get PriceHydrogen treatment at appropriate temperatures is commonly used to introduce oxygen defects in many metal oxides due to the high reducibility of hydrogen. 12c, 58 Mild reduction conditions can be implemented to introduce oxygen vacancies with an admissible degree of structural disorder. 59 Yan et al. 42 reported 3D Co/Co 3 O 4 core-shell ...
Get Price2018-12-18 · Online monitoring of U. maydis growth on galacturonic acid. As first step, the growth of the protease deficient strain U. maydis AB33P5ΔR on galacturonic acid was characterized by online monitoring of the metabolic activity. AB33 is known to grow in a stable unicellular state making it applicable up to fermenter scale [].Furthermore, the strain produces less lipids compared to other U. …
Get Price2020-11-4 · In another study conducted in Europe, production cost was estimated to be €4.95, 4.16, and 5.96/kg of biomass from open ponds, horizontal tubular and flat panel photobioreactors, respectively . Even the biomass production cost drops down to 0.5 kg, still scaling-up of microalgae for standalone production of biofuel is economically ...
Get Price2004-10-14 · dosage of > 20 mg/L for ferric chloride, > 60 mg/L for alum and < 18 mg/L for poly-aluminum chloride for effective pretreatment. Their results demonstrated reduced membrane fouling for both under-dose and optimal dosages of coagulants. Incorporating a sedimentation unit as a part of pretreatment was found to improve the membrane performance.
Get Price2021-6-24 · Dr Tomas Ramirez Reina. Senior Lecturer in Chemical and Process Engineering Director of Employability. MChem, MSc, PhD, AMIChemE, FHEA. +44 (0)1483 686597. [email protected] 30 BC 02.
Get Price2 天前 · Their study focused on different metal oxide nanoparticles (CuO, TiO 2, ZnO, CuZnFe 2 O 4, Fe 3 O 4, Fe 2 O 3), and the toxicity was compared to that of carbon nanoparticles and multi-walled carbon nanotubes (MWCNT). Their results showed that there was a high variation among different nanoparticles concerning their ability to cause toxic effects.
Get PriceHowever, because of high cost and incapable of repeated use, make it harder to combating oil spillage effectively and to suite environment friendly material. This study was done to assess waste tyre granulates and polypropylene (PP) fibre as oil sorbent in terms of …
Get Price2017-9-21 · The study was conducted by using 10 years old waste in landfill simulator reactor (LSR). Four Landfills Simulator Reactors (LSR) were constructed for evaluate the gas production of old MSW landfilled. The LSR was made of high density poly ethylene (HDPE) has 50 cm outside diameter and 150 cm of high.
Get PriceThe 26th Regional Symposium on Chemical Engineering (RSCE 2019) was held from 29 th October to 1 st November 2019 in Kuala Lumpur, Malaysia. The symposium, organized by the Department of Chemical Engineering, Faculty of Engineering, University of Malaya was supported by various local and international organisations, including the Malaysia Convention and Exhibition Bureau.
Get PriceThe switch to an aqueous processing route could also lead to cost reduction of over 90%, as shown by a cost study of Wood et. al. Therefore, high efforts are made to solve the challenges of an aqueous cathode production, which are on one hand attributed to side reactions of the moisture sensitive high-energy cathode materials (e.g., Ni-rich ...
Get Price2018-12-12 · Biobased 2-butanol offers high potential as biofuel, but its toxicity toward microbial hosts calls for efficient techniques to alleviate product inhibition in fermentation processes. Aiming at the selective recovery of 2-butanol, the feasibility of a process combining in situ vacuum stripping followed by vapor adsorption has been assessed using mimicked fermentation media. The experimental ...
Get PriceSummary. In 2011, EFSA published an opinion on ‘Campylobacter in broiler meat production: Control options and performance objectives and/or targets at different stages of the food chain’. In 2018, the European Commission requested the Panel on Biological Hazards to deliver a scientific opinion updating and reviewing control options for Campylobacter in broilers, focussing on primary ...
Get PriceRecently, magnetic nanomaterials have emerged as multifunctional materials for a wide range of biomedical applications. Functional magnetic iron oxide nanoparticles (FMIONs) are typical magnetic nanomaterials with inherent advantages for disease diagnosis, prevention, and treatment: high specific surface area, excellent superparamagnetism, good colloidal stability, and remarkable biosafety.
Get PriceHowever, because of high cost and incapable of repeated use, make it harder to combating oil spillage effectively and to suite environment friendly material. This study was done to assess waste tyre granulates and polypropylene (PP) fibre as oil sorbent in terms of …
Get Price2018-12-6 · In this study, sago starch was modified in order to enhance its physicochemical properties. Carboxymethylation was used to introduce a carboxymethyl group into a starch compound. The carboxymethyl sago starch (CMSS) was used to prepare smart hydrogel by adding acetic acid into the CMSS powder as the crosslinking agent. The degree of substitution of the CMSS obtained was 0.6410.
Get PriceThe switch to an aqueous processing route could also lead to cost reduction of over 90%, as shown by a cost study of Wood et. al. Therefore, high efforts are made to solve the challenges of an aqueous cathode production, which are on one hand attributed to side reactions of the moisture sensitive high-energy cathode materials (e.g., Ni-rich ...
Get PriceThe 26th Regional Symposium on Chemical Engineering (RSCE 2019) was held from 29 th October to 1 st November 2019 in Kuala Lumpur, Malaysia. The symposium, organized by the Department of Chemical Engineering, Faculty of Engineering, University of Malaya was supported by various local and international organisations, including the Malaysia Convention and Exhibition Bureau.
Get Price2016-11-10 · Example: Find out how much phosphate and potash you are applying to the turf when you apply 3.8 pounds of the 26-5-10 fertilizer per 1000 square feet. Multiply the amount of fertilizer you are applying (3.8 pounds per 1000 square feet) by the percentage of phosphate in the bag (5%). Do the same for potash (10%).
Get Price2018-12-12 · Biobased 2-butanol offers high potential as biofuel, but its toxicity toward microbial hosts calls for efficient techniques to alleviate product inhibition in fermentation processes. Aiming at the selective recovery of 2-butanol, the feasibility of a process combining in situ vacuum stripping followed by vapor adsorption has been assessed using mimicked fermentation media. The experimental ...
Get PriceSummary. In 2011, EFSA published an opinion on ‘Campylobacter in broiler meat production: Control options and performance objectives and/or targets at different stages of the food chain’. In 2018, the European Commission requested the Panel on Biological Hazards to deliver a scientific opinion updating and reviewing control options for Campylobacter in broilers, focussing on primary ...
Get Price2020-4-3 · By the end of 1980s, for the first time polyhydroxyalkanoate (PHA) copolymers with incorporated 4-hydroxybutyrate (4HB) units were produced in the bacterium Cupriavidus necator (formally Ralstonia eutropha) from structurally related carbon sources. After that, production of PHA copolymers composed of 3-hydroxybutyrate (3HB) and 4HB [P(3HB-co-4HB)] was demonstrated in diverse wild …
Get PriceRecently, magnetic nanomaterials have emerged as multifunctional materials for a wide range of biomedical applications. Functional magnetic iron oxide nanoparticles (FMIONs) are typical magnetic nanomaterials with inherent advantages for disease diagnosis, prevention, and treatment: high specific surface area, excellent superparamagnetism, good colloidal stability, and remarkable biosafety.
Get Price2019-10-8 · The demand for fossil derivate fuels and chemicals has increased, augmenting concerns on climate change, global economic stability, and sustainability on fossil resources. Therefore, the production of fuels and chemicals from alternative and renewable resources has attracted considerable and growing attention. Ethanol is a promising biofuel that can reduce the consumption of gasoline in the ...
Get Price2019-5-11 · In this study, the isolation and molecular identification of five native microalgae strains commonly distributed in north-eastern Tunisia were conducted. To select the best performing strain and the optimal culture conditions, experiments were carried out in semi-continuous mode.
Get Price2009-10-22 · Chapter 33 - Toxicology INTRODUCTION. Ellen K. Silbergeld. Toxicology is the study of poisons, or, more comprehensively, the identification and quantification of adverse outcomes associated with exposures to physical agents, chemical substances and other conditions.
Get Price2021-5-27 · The Hazen Lab is a diverse group research associates, post doctoral fellows, research associates, graduate students, undergraduate students, and visiting professors in microbial ecology and environmental engineering that are led by Dr. Terry C. Hazen. The overarching theme of our research is Systems Biology from Ecosystems to molecules, because the whole is greater then the sum of its parts.
Get PriceThe synthesized composite exhibits a unique morphology with high surface area of about 330.48 m 2 g −1 and high conductivity of 767.95 Sm −1. In a three electrodes system, the resultant Cu/PCNFs electrodes show a specific capacitance of 333.5 Fg −1 at a current density of 1 Ag −1 in 1 M of H 2 SO 4 aqueous electrolyte.
Get PriceThe Journal of Chemical Technology and Biotechnology Journal Impact IF 2020-2021 is 2.75. More IF Analysis, Trend, Ranking & Prediction.
Get Pricewhere dε is the mean energy given up by the ionizing radiation to the mass amounts dm of the substance interacting with this ionizing radiation.dm is emphasized to be very low but not so low that the mean energy dε given up by the radiation would undergo a significant fluctuation.. Absorbed dose is measured in Joule/kg. The SI unit measure for the absorbed dose is the gray (Gy):
Get PriceThe Ownership Cost Model of an Electric Vehicle Charging Station to Power Environmentally Friendly Tourism 1 Dokrak Insan and 2,* Prapita Thanarak 1 School of Renewable Energy and Smart Grid Technology (SGtech), Naresuan University, Phitsanulok 65000, Thailand.
Get Price2020-9-21 · The ubiquitous pollution of the environment with small plastic particles (<5 mm) called microplastics (MP) 1 –4 has raised concerns within societies and government. In the near future, detection and quantification need to be addressed, for example in drinking water in California, in the United States of America 5,6 until 1 July 2021. Such bills require fast and reliable count and polymer ...
Get Price2019-11-17 · The goals of this study were to (1) examine the stiffness and time-dependent material properties of skeletal muscle subjected to both confined and unconfined compression (2) develop a model that captures passive muscle mechanics under both conditions and (3) determine the extent to which different assumptions of volumetric behavior affect model ...
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