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2000 articles for “CO” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Evaluation of Humic Acid Content and Zinc Levels in Soil, Olive Fruit and Leaf Samples in Edremit Bay
Abstract: Edremit Bay is located on west coast of Turkey and region’s economy mainly relies on olive products. In this study, Zn(II) content of soil, olive fruit and olive leaf samples obtained from Burhaniye and Küçükkuyu in Edremit Bay were analyzed. Additionally, humic acid contents of soil samples were determined and compared with a commercial fertilizer additive. Determination of Zn(II) in mineralized samples were achieved using flame atomic absorption spectrometer. The …
Published in International Journal of Chemical Separation Technology · Vol. 1, Issue 1, 2015 · pp. 1–7 Read article
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Numerical Analysis of Flow Characterization in a Continuous Crystallizer
Abstract: In this work, hydrodynamics in a draft tube continuous crystallizer is analyzed computationally through Ansys CFD to crystallization phenomena. Hindrance to fluid mixing and particle suspension due to vortexing can be overcome by providing baffles. A draft tube ensures that it directs the flow in vertical direction ensuring good axial blending. Here CFD simulations are performed using multiple reference frame (MRF) with sliding mesh approach in transient condition for flow …
Published in International Journal of Chemical Separation Technology · Vol. 2, Issue 2, 2016 · pp. 33–43 Read article
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GC-MS Analysis of Bio-Active Compounds of Carica papaya L. Male Flower
Abstract: This study was aimed at the elucidation of the bioactive compounds present in methanol extracts of Carica papaya L. The GC-MS mass spectra of the identified compounds were compared with those of the National Institute of Standards and Technology (NIST) database library. The results confirmed the presence of 32 compounds including 10-Heptadecen-8-ynoic acid, methyl ester, (E)-, 3,6-Octadecadiynoic acid, methyl ester, 7-epi-cis-sesquisabinene hydrate, Methyl 5-cyclopropyl-1-(4-fluorophenyl)-1H-pyrazole-3carboxylate, á-copaene, Tetradecanoic acid, Tridecanoic acid, Pentadecanoic …
Published in International Journal of Chemical Separation Technology · Vol. 6, Issue 1, 2020 · pp. 23–34 Read article
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Experimental Investigation of the Production of Carbon(iv)oxide (CO 2 ) from Brewers Spent Grain using Anaerobic Digester
Abstract: In this study, fresh brewers spent grain from a Brewery in Port Harcourt, was used to generate biogas, and the rate of carbon dioxide production was examined as a fractional component of the biogas. Additionally, daily records of the anaerobic digestion process temperature and pressure buildup were recorded. The analysis result revealed that the pH values before and after the examination were 7.45 and 7.26, respectively, and that the temperature …
Published in International Journal of Chemical Separation Technology · Vol. 9, Issue 1, 2023 · pp. 1–11 Read article
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Temporal Monitoring of Drinking Water’s Quality for Adjustment of the Production Station: Case of Gagnoa Drinking Water Treatment Station, Ivory Coast
Abstract: The frequent refusal of local populations to consume tap water, despite the financial resources deployed by the State, constitutes a headache for managers who have to choose between customer satisfaction and the search for profits. The quality (chemical and organoleptic) of the water offered by the managers of drinking water networks is one of the causes of this refusal. The objective of this study is to use the Jar Test …
Published in International Journal of Chemical Separation Technology · Vol. 9, Issue 2, 2023 · pp. 20–28 Read article
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Application of Taguchi Method for Optimization of Reaction Parameters in Graft Copolymerization onto Guar Gum
Abstract: In this article, Taguchi method is used to theoretically optimize the various reaction parameters and their interactions that may affect the end properties of Guar Gum Grafted copolymers made in a laboratory glass reactor. An attempt has been made to assess and predict the effect of temperature, monomer (Acrylonitrile) concentration and Guar Gum concentration on % grafting. In the present study effect of above mentioned three reaction parameters on the …
Published in International Journal of Chemical Engineering and Processing · Vol. 3, Issue 2, 2017 · pp. 12–18 Read article
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Influences of Layered Silicate Modification and Compatibilizers on the Properties of Polypropylene Nanocomposites
Abstract: In this study, polypropylene (PP) organo-layered silicate nanocomposites based on organo-muscovite (OM) were fabricated using co-rotating twin-screw extruder. Polypropylene grafted maleic anhydride (PPMA) and potassium succinate modified polypropylene grafted maleic anhydride (PPKS) were used as a compatibilizer in the nanocomposite system. The influences of layered silicate modification and compatibilizers on the morphological, mechanical, thermal and rheological features of PP/PPMA/OM and PP/PPKS/OM nanocomposites were examined. TEM micrographs were made which showed …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 1, 2021 · pp. 36–44 Read article
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Characterization of Tesu Colour Dyeing on Excel Fibre and to Study the Effects of Caustic Treatment
Abstract: Tesu, the natural flower colour, was extracted in such way that the maximum colour yield can be obtained on textile fibre. The extracted Tesu colour was applied on excel, the third generation regenerated cellulosic fibre, at different pH, time, temperature and electrolyte concentration. The characterisation of Tesu colour dyeing on excel fibre was developed. Further, the effects of caustic soda treatment on dyeability of excel fibre with natural Tesu colour …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 1, 2016 · pp. 20–25 Read article
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Studies on the degradation of jute blended cotton fabric in soil, water and ambient atmosphere
Abstract: Although, we are more concern about the environment pollution, we cannot reduce the use of pollutant in a significant limit. The use of bio-degradable materials is one of the best methods to reduce environmental pollution. In our present research we tried to find biodegradable materials, jute and cotton, to keep our environment pollution free. We also showed the effect of environment on the degradation properties of the mentioned materials. The …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 2, 2018 · pp. 1–11 Read article
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Automobile Wash Water Treatment Using Date Seed Adsorbent & Bio-Sand Filtration System
Abstract: From past few years, recycling of car wash water is getting more importance due to the lack of fresh water resources and also the demand of water is increasing day by day. In many industries including car wash industry, one of the major challenge to find an economic and efficient treatment solution for removing oil, soap, waxes oil, grease and contaminated water of car wash as these wastewater consists of …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 2, 2018 · pp. 22–28 Read article
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A Literature Review on Microbial Contamination of Paper Currency
Abstract: This literature review deals with microbial contamination of paper currency. Contamination of objects through pathogenic microorganisms is of much public health concern as contaminated materials can be sources of transmitting pathogens. Paper currency likely to be contaminated with disease-causing microorganisms. Keywords: currency , contamination , pathogen .
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 1, 2019 · pp. 18–22 Read article
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EFFECT OF ALGAE & COAGULANTS ON PHARMACUTICAL EFFLUENT CHARACTERSTICS
Abstract: Pharmaceutical industry effluents may contain many elements including calcium, magnesium, silica, chromium nickel, iron, cobalt, zinc etc. These heavy metals which are produced by the industrial waste are a big threat for the environment. They can also harm the ecosystem. In this study biochemical treatment of algae and coagulants was given to pharmaceutical industry effluent and reduction in polluting parameters was determined. It was observed that in the presence of …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 1, 2019 · pp. 1–3 Read article
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Preparation of a composite Materials from activated carbon and waste plastic for water Treatment
Abstract: Insoluble resins offer several advantages in preparation processes, the chemical, photochemical and thermal mechanical properties of composites are largely affected by matrix properties. The aim of our study was a double aspect, the synthesis of a polymer-based ion exchanger from waste polystyrene and the composite material valorization in water treatment. a series of experiments was made to prepare the sulfonated polystyrene ion exchange resin and the composite material based on …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 38–48 Read article
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SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF HYDROXAMIC ACIDS WITH POTASSIUM HEXATHIOCYANATO CHROMIUM (III) TETRA HYDRATE
Abstract: Some hydroxamic acids eg.[L1= benzohydroxamic acids (BHA), L2= N-phenyl– benzohydroxamic acid (NPBHA), L3= pivaloyl benzohydroxamic acid (PHA) and L4=N-phenyl-pivaloyl benzohydroxamic acid (PPHA) prepared and reacted with L’=Potassium hexathiocynato chromium (III) tetra hydrate K3[Cr(SCN)6]4H2O.The mixed ligand complexes of hydroxamic acids characterized with the help of repeated melting point, by I.R. studies, magnetic moment, molar conductance and by elemental analysis(C,H and N).The stoichiometry of the complexes were found to be 1:2(M:L) molar …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 2, Issue 2, 2016 Read article
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Millard Reaction: The Chemical Reaction of Browning, Flavoring and Aroma Through the Science of Cooking.
Abstract: The Maillard reaction is a step in the formation of advanced glycation endproducts (AGEs). It is tracked by measuring pentosidine. Even though the Maillard reaction has been studied most extensively in food science, it has also displayed and shown correlation in many different diseases in the body of human being, especially in degenerative eye diseases. In normal conditions, these diseases are due to the accumulation of advanced glycation endproducts (AGEs) …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 5, Issue 2, 2019 · pp. 9–19 Read article
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Design of a Continuous Stirred Tank Reactor for Acetic Acid Production Using Homogeneous Catalyzed Reaction
Abstract: The carbonylation of methanol to give acetic acid is one of the most important homogeneously catalyzed industrial processes. Detailed work has been carried out by researchers on its kinetic study and attempt to increase the activity of the catalyst. In this work attention is focused on the design of a continuous stirred tank reactor (CSTR) for the production of 210, 000 tons per year of acetic acid. At a maximum …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 7, Issue 1, 2021 · pp. 17–38 Read article
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Thermodynamic and Kinetic Characterization of Aluminum Corrosion and Inhibition Adsorption of Vernonia Amygdalina Fruit Extract IN 0.5N H2SO4
Abstract: Anti-corrosive efficacy of ethanolic extract of Vernonia amygdalina fruit extract on corrosion of aluminum in 0.5N H2SO4 acidic solution was explored by mass loss measurement at rise in temperature between 303-343 K for 24 hours immersion period. The I.E. (η%) has been noticed prominently high (62.92%) at concentration 0.45% at 303 K. An inhibitor adsorption on the surface aluminum have been found to be best fitted Langmuir adsorption isotherm. It …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 9, Issue 1, 2023 · pp. 20–27 Read article
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Bidding Strategy for Building Projects Based on Game Theory
Abstract: The owners of construction projects typically apply a competitive bid process to award a contract to the qualified bidder who submits the lowest price. For the contractors, it is very difficult to decide an optimal mark-up and bid value to win the contract and at the same time to secure sustaining profitability as high as possible. For that, from the various literatures related to the bidding problems, the factors are …
Published in International Journal of Construction Engineering and Planning · Vol. 5, Issue 1, 2019 · pp. 1–11 Read article
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Fresh and Hardened Properties of High Performance Concrete with Weld Slag as Fine Aggregate
Abstract: This research centers on the incorporation of welding slag, the residue remaining after the welding process, as fine aggregates in the production of high-performance concrete with a compressive strength of 70 MPa. The chemical and physical characteristics of welding slag aggregates (WSA), such as chemical compositions, specific gravity, SEM images, XRD, and EDS analysis, were investigated. Additional investigations were carried out by substituting welding slag with standard sand at varying …
Published in International Journal of Construction Engineering and Planning · Vol. 9, Issue 2, 2023 · pp. 29–36 Read article
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Review on the Performance of Fibre and Industrial Slag in Concrete
Abstract: This review paper discusses about the different types of fibre used in concrete at different periods with the mix parameter details. This review enlightens the effect of industrial waste such as Bottom ash, Copper slag, Ferro-chromium slag, Ground granulated blast furnace slag (GGBFS), Steel slag, Stainless steel slag as a substitute in concrete. The elaborate study on its chemical composition and also the merits and demerits of using the slag …
Published in International Journal of Concrete Technology · Vol. 1, Issue 1, 2015 · pp. 16–30 Read article