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1115 articles for “Evaluation”
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Comparison of Theoretical and Experimental Investigation of Suspened Solids Sedimentation Model in Stagnant Water Environment on Crude Oil Degradation
Abstract: In this investigation the developed model of Ukpaka’s, Stoker’s and Newton’s were compared with the determine values from the experimental data obtained in the suspended solid (TS) in a stagnant water environment. Theoretical and experimental data established in this research demonstrated a good match as well as the evaluated deviation error reveals acceptable range indicating the usefulness of these models in monitoring and predicting the TS sedimentation mechanism in crude …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 1, 2022 · pp. 1–16 Read article
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Application of Hengstebeck's Model in Multicomponent Crude Oil Distillation Design
Abstract: Mathematical models were developed for the analysis of the Atmospheric Crude Distillation Unit of Port Harcourt Refinery in Nigeria. The resultant system of equations was solved using the method of matrix inversion using Mathlab software and the models predicted with reasonable accuracy composition of side draws (different fractions) and temperatures. Also, the effect of process parameters on the overall performance of the unit was studied. In addition, the study applied …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 1, 2022 · pp. 13–19 Read article
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Optimization and Control of Evaporative Separation Processes
Abstract: Evaporative separation processes are widely used in various industries, including chemical manufacturing, petroleum refining, and food and beverage processing, to separate components based on their vapor pressures. These processes involve the use of equipment such as distillation columns, evaporators, and membrane-based systems, and are critical for ensuring product quality and process efficiency. However, the complexity of evaporative separation processes and the inherent variability in feedstock composition and quality make it …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 2, 2022 · pp. 27–31 Read article
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Chemical Analysis of Ground Water Quality in Jaipur for Multi Purposes
Abstract: Jaipur's groundwater quality is steadily declining as a result of the city's growing development and modernization. The present study's assessment of the water quality is restricted to the principal ions' concentrations, distributions, relative abundances, and patterns of changeability in the chemistry of the groundwater. An evaluation of groundwater for domestic usage is made based on the chemicals present in the water. 22 ground water samples from Jaipur, Rajasthan, were collected …
Published in International Journal of Chemical Separation Technology · Vol. 9, Issue 1, 2023 · pp. 40–44 Read article
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Predicting the TPH Concentration along Horizontal Direction of Stagnated Water Contaminated with Crude Oil
Abstract: The research predicts and models TPH concentration along Horizontal Direction of Stagnated water contaminated with Crude Oil. TPH diffusion in the stagnant water media was studied using Developed Dispersion and Degradation Model incorporated with first order degradation rate and the Monod equation. TPH content decreased with increase in time, but randomly varied across the depths. The impact of crude oil was more in the fresh water compared to salt water …
Published in International Journal of Chemical Separation Technology · Vol. 9, Issue 1, 2023 · pp. 12–22 Read article
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Studies on Mass and Momentum Transfer at the Outer Wall of a Circular Conduit with Entry Region Spiral Tape Wound on Rod as Turbulence Promoter in Homogeneous Flow
Abstract: In this study, an experimental investigation is carried out for augmentation of mass transfer coefficients in homogeneous flow by inserting spiral tape wound on rod in a circular conduit. Mass transfer coefficients are evaluated from the limiting current densities and the concentrations of the reacting ions. The variables studied are the geometric parameters of the promoter width, height, pitch of the promoter and the flow rate of the electrolyte, each …
Published in International Journal of Chemical Engineering and Processing · Vol. 1, Issue 1, 2015 · pp. 41–62 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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Material and Energy Balances in the Process of Anti-Bacterial Drugs from Erythromycin
Abstract: Erythromycin is a crucial material for production of active pharmaceutical ingredient with several different applications to treat diseases. Demand for erythromycin derivatives has been accumulated within the last twenty years and drastically in last 2 years as a key raw material for COVID-19. Clarithromycin is one amongst the derivatives of erythromycin that has higher anti-bacterial properties. This paper involves manufacture of Clarithromycin, an anti-bacterial drug, from Erythromycin. Selective methylation of …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 2, 2021 · pp. 21–36 Read article
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Physico-Mechanical Performance of Waste Plant Fiber Reinforced Thermoplastic Composites for Automotive Applications
Abstract: To maximize the interfacial bond strength, it is necessary to investigate the direct relationship between the degree of fiber-matrix adhesion and the mechanical and fracture behavior of composites. In this work, the strength of the interfacial bond between polypropylene (PP) and waste plant fiber (Dharose plant fiber, DF) that have been subjected to ultraviolet radiation (UV) was established. By using hot press molding, unidirectional composites of PP with dharose plant …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 14–24 Read article
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Effect of Elephant Grass for the Remediation of Contaminated Swampy and Clay Soils Environment
Abstract: The research on the effect of Elephant grass and effectiveness to enhance remediation of crude oil polluted soil environment was studied. The experiment carried out in order to ascertain the performance of the locally sourced braw material for remediation of the contaminated soil. The physiochemical parameters of the contaminants such as crude oil, as well as the elephant grass in powdered form, swampy and clay soils were determined in terms …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 1, 2023 · pp. 25–30 Read article
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Brain Tumor Detection using Machine Learning Methods-KNN, SVM, DT, RF
Abstract: Brain tumor is a major contributor to illness and death worldwide, and timely diagnosis is essential for successful treatment and improved outcomes Recent research has looked into the possibility of machine learning algorithms for detecting and classifying brain tumours in medical pictures. In this study, four commonly used machine learning algorithms (K-Nearest Neighbours, Decision Trees, Support Vector Machines, and Random Forests) were evaluated for their effectiveness in brain tumor detection. …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 2, 2023 · pp. 48–59 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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Pyrolysis Characteristics and Isoconversional kinetics of kusum deoiled seedcake.
Abstract: The pyrolysis characteristics and kinetics of kusum de-oiled seed cake were conducted using a Thermo gravimetric analyzer. Thermogravimetric analysis of biomass was carried out at three different heating rates of 10, 20, 30, ̊ C/min from 28 ̊ C to 1000 ̊ C under N2 atmosphere. The results indicated that the biomass was decomposed in the temperature range of 270 ̊C to 520 ̊ C and further decreased when temperature …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 2, 2016 · pp. 9–17 Read article
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Classification Tools of Rating Water Quality: Application of Sr and WQI
Abstract: The study in this research is to evaluate Obite and Ogbogu groundwater quality. Studentized range test were used to appraise the relationship between water parameters assessed of Obite and Ogbogu community and the results obtained indicates that there is significant difference between Obite and Ogbogu community water quality parameters investigated as the percentage point of studentized range at 5% level with 70 degrees of freedom, when compared with the calculated …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 1, 2018 · pp. 1–7 Read article
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Core/Shell structures embedded polyaniline nanocomposite for Solar cells
Abstract: The synthesis and characterization of the conducting polyaniline (Pani) films embedded with Co2+ doped, PVA capped PbS/ZnS core-shell particles as photoluminescent boosters is reported. The photoluminescence intensity of the core-shell particles –Pani film had increased significantly.Periodic arrangement of the nanoclusters of the core-shell particles in the continuous conductive polymer matrix and high carrier density promise this material for the photoelectrochemical applications. Solid -state photovoltaic cells have been fabricated with PbS:Co/ZnS-Pani …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 1, 2018 · pp. 8–18 Read article
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Modeling the Diffusion Characteristics of Sawdust in Crude Oil Medium
Abstract: Over the years, oil spill pollution has become an important issue of concern due to its serious environmental impact; Therefore natural organic sorbent such as Abura sawdust was used for oil spill cleanup due to its availability, eco-friendliness and low cost, and was selected as the preferred sorbent and the effects of sorbent contact time and its particle size on oil adsorption capacity were evaluated for the systems of dry …
Published in International Journal of Environmental Chemistry · Vol. 4, Issue 1, 2018 · pp. 44–57 Read article
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Assessment of Groundwater Quality Affected by Open Dumping Site in Hyderabad Pakistan
Abstract: The present study has been conducted to evaluate the different samples of groundwater, surface leachate and Soil, for the determination of chemical parameters of surface leachate and their effects on soil using X-Ray Fluorescence spectroscopic (XRF) technique. Samples were collected from the vicinity of unregulated dumping site area of Hyderabad, Pakistan. Different chemical and elements including essential trace and toxic were determined. The impact assessment of leachate on the quality …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 1, 2019 · pp. 23–30 Read article
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Bioremediation of Polluted Drainage with Petroleum Hydrocarbon
Abstract: This research was aimed at examining the petroleum product discharge in drainage within Port Harcourt City, samples were collected and mixed. Microbial analysis and physicochemical properties of the sample were determined. The sample was subjected into bioremediation after culturing of the microorganisms isolated, identified and characterized. The two microorganisms used are pseudomonas aeruginosa and aspergillus niger. The results obtained revealed high concentration for heavy crude oil than mixed crude oil; …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 2, 2021 · pp. 24–34 Read article
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SOCIO-ECONOMIC IMPACT AND ENVIRONMENTAL HAZARDS OF OIL PALM MILL INDUSTRY ON THE RESIDENTS IN DARU AND YENGEMA, JAWI CHIEFDOM, KAILAHUN DISTRICT SIERRA LEONE
Abstract: The oil palm industry's socioeconomic impact and risk to human health evaluation were quantitative and descriptive cross-sectional studies to determine the oil palm industry's socioeconomic influence on local communities and risk to human health in the surrounding area. The two residents of the study site were chosen at random. The study included 51 respondents in total. Questionnaires and key informant interviews were used to generate the results. The outcomes of …
Published in International Journal of Environmental Chemistry · Vol. 9, Issue 1, 2023 · pp. 24–33 Read article
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Anti-tubercular activity of dioxo molybdenum (VI) metal complexes of 2-((E)-(1,5-dimethyl-2-phenyl-3-((Z)-(quinoline-8-ylimino)methyl)-2,3-dihydro-1H-pyrazole-4-ylimino)methyl)phenol
Abstract: Dioxomolybdenum(VI) complexes tetradentate ligand 2-((E)-(1,5-dimethyl-2-phenyl-3-((Z)-(quinoline-8-ylimino)methyl)-2,3-dihydro-1H-pyrazole-4-ylimino)methyl)phenol was synthesized by conventional method The ligands and their MoO22+ complexes have been characterized on the basis of elemental analysis, electronic. I.R., 1H and 13C-NMR spectral method, by their spectral studies, octahedral geometry of the complex has been proposed. On evaluation of in-vitro antitubercular activity of the ligand and dioxo Mo(VI) metal complex found that complex is more potent antitubercular agent than ligand. Keywords: anti-tubercular …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 1, 2017 Read article