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739 articles for “physical”
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Assessment of the Physiochemical Parameters of Aluu Crude Oil Polluted Soil Environment in Niger Delta.
Abstract: Investigation was carried out to examine the effect of Crude oil contamination of Aluu soil and some of the physiochemical parameters. The physiochemical parameters studied were temperature, pH value, electrical conductivity and available phosphorus. The result obtained revealed the significant effect of the crude oil contamination on the physicochemical parameter investigated. The statistical analyses used were analysis of variance (ANOVA) and regression analysis. The time has effect on temperature and …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 30–37 Read article
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UNIT OPERATIONS IN CHEMICAL INDUSTRIES
Abstract: The unit operation like distillation, absorption, evaporation, filtration, drying, etc. are most important factors. Distillation is a purification method for liquids and can separate components of a mixture if they have significantly different boiling points. Absorption is a physical or chemical phenomenon. Evaporation can be defined as the process where liquid is transformed into a gaseous state. Evaporation can occur only when water is available. Drying is an important unit …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 11–29 Read article
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Multivariate modeling of mineral water Karachi, Pakistan
Abstract: In last few decades the demand of mineral water has increased and is very important for human life due to shortage of pure and clean water. The mineral water is produced by various companies with different names and brand with approval of the relevant authorities. The present study was carried out for the preconcentration and determination of trace amount of metals (Cd, Cu, Pb, Fe, Mn, Ni, and Zn) from …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 49–59 Read article
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Development of Predictive Model on Corrosion of Metals in Swampy Soil Environment
Abstract: The research carried out to examine the usefulness of corrosion in metals in swampy soil. It also reveals the weight loss and corrosion rate in a metal. The following physicochemical parameters which include BOD, COD, pH and microbial activities were modelled. The extent of metal corrosion in swampy soil is dependent on many different and often interrelated factors, trying to predict what may happen to a specific object after wrecking …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 1, 2020 · pp. 15–29 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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THE EFFECT OF NOISE POLLUTION ON HUMAN GENERATION
Abstract: Noise pollution is defined as repeated exposure to excessive sound levels that may cause harm to humans or other living beings. Sound levels less than 70 decibels are not harmful to living beings, according to the World Health Organization. On a daily basis, millions of people are affected by noise pollution. Noise Induced Hearing Loss (NIHL) is the most common health condition, it causes Noise-Induced Hearing Loss. Loud noise can …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 23–28 Read article
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A Review on Potential Uses and Characterization of Okra Fiber Reinforced Polymer Composites
Abstract: The environment, ecology, and new rules from the government agencies are major concerns in the quick-paced society. As a result, scientists and researchers are searching for natural fiber reinforced composites that are biodegradable and renewable. Natural fibers have undeniable advantages over synthetic fibers, including low density, equivalent strength, non-toxicity, low cost, and minimal waste disposal issues. The possible uses of natural fibers have been thoroughly investigated by researchers. But in …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 2, 2022 · pp. 22–33 Read article
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Synthesis and Characterization of Polyurethane in Powder Form
Abstract: Polyurethanes (PUs) are defined as a class of versatile materials with great potential for use in different applications, especially based on their structure-property relationships. Their specific mechanical, physical, biological, and chemical properties are attracting significant research to tailor made PUs for various applications. Enhancement of the properties and performance of PU-based materials are achieved through altering the production process or the raw materials used in their fabrication or via the …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 4, Issue 2, 2018 · pp. 22–27 Read article
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Overview on the Synthesis and Characteristics of Polystyrene
Abstract: Polystyrene, a synthetic aromatic polymer, is one of the most wide spread polymers in the world. The monomer is styrene (vinylbenzene)- a petroleum based liquid hydrocarbon. Polystyrene can be solid or foamed. It was first discovered by a German apothecary Edmon Simon as far back as in 1839 from the resin of Turkish sweet gum trees. Polystyrene is formed by a polymerization method known as chain growth. Physically, it is …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 2, 2020 · pp. 26–30 Read article
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Review on Advanced Small Modular Reactors (SMRs)
Abstract: The Department's objective of developing secure, fair, and cheap nuclear power solutions features advanced smaller module units. In the United States, sophisticated SMRs are being developed in a range of sizes, technological factors, capacities, and installation situations. These advanced reactors, which are expected to range in capacity from tens to hundreds of mw, can be utilised for power production, process heat, purification, and other industrial applications. Clear water or even …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 8, Issue 1, 2022 · pp. 19–24 Read article
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Stability Analysis of Mahua Seed and Waste Polystyrene Co-pyrolytic Oil
Abstract: Biomass pyrolytic oil is a complex mixture of organic compounds and obtained in a non-equilibrium state. Hence, the physical properties of bio-oil such as calorific value, viscosity, pH, density, flow ability and chemical compositions vary during storage. In this study, co-pyrolysis of Mahua seed was performed with waste polystyrene and studied the fuel properties and composition. The co-pyrolytic oil was produced at 2:1 ratio of seed to waste polystyrene using …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 2, Issue 1, 2016 · pp. 1–7 Read article
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Ionic liquids: as a solvent for electrodeposition of metals and energy conversions
Abstract: Over the past decade, Ionic Liquids have attracted much interest for their use as non-aqueous electrolytes in electrochemical applications. In this context, their conductivity as well as their electrochemical stability are the most important physical properties. Together with other interesting properties such as their negligible vapor pressure and their non-flammability, they appear to be ideal electrolytes for many interesting applications such as electrodeposition of metals with maximum current efficiency (CE) …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 3, Issue 2, 2017 · pp. 19–38 Read article
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Production and Characterization of Biomass Briquette from Sawdust and Cow Dung Admixture for Domestic Cooking Applications in Northern Ethiopia
Abstract: This study explored the possibility of producing and characterize biomass briquettes from sawdust and caw dung admixture that could be used as a sustainable fuel sources of energy supply for domestic cooking applications. In this study, Potato starch used as a binder. The physical and composition properties of the sawdust and cow dung as well as the developed biomass Briquettes were determined using Thermogravimetric analysis. A portion of sawdust and …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 2, 2019 · pp. 49–57 Read article
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Quantitative Consequence Analysis of Selected Accident Scenarios at a Refuelling Station for Hydrogen Vehicles
Abstract: AbstractThe implementation of hydrogen economy and energy systems in any nation will require introduction of a large number of hydrogen refueling stations for hydrogen based automobiles. These will be expected to store a significant inventory of hydrogen on site, either as a compressed gas with pressure of about 750 bar or as a cryogenic liquid at 20 K. Not only does the handling of compressed gases and cryogenic liquids present …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 2, 2019 · pp. 58–81 Read article
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Review on Production of Activated Carbon from Agricultural Biomass Waste
Abstract: Agricultural biomass waste is one of the main residue largely generated in the environment and was used as precursor for the synthesis of activated carbon as adsorbents, support on catalyst, electric charge storage, micro pore structure, high adsorption capacity material. Recently, many research paper can be found on particular biomass feedstock and activation technique to produce activated carbon. Consequently, main focus should be taken to the relevance those precursor effectiveness …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 7, Issue 2, 2021 · pp. 26–37 Read article
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Environmental implications of stubble and their usages as soil and concrete reinforcement
Abstract: Stubble burning has been reckoned among the major contributors to air pollution, especially in North India. It is a significant source of gaseous pollutants causing serious damage to human health and the environment. The situation is more hazardous due to the intensive rice-wheat rotation system which generates a large amount of stubble with no significant use as good as burning due to poor knowledge of the management of stubble. It …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 1, 2022 · pp. 1–7 Read article
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Comparative Study on Production and Characterization of Bioethanol from Agricultural Waste Materials
Abstract: Production and characterization of bioethanol from lignocellulosic substrates that include sugarcane bagasse, corn cob and cassava peels were investigated in this research study. The raw materials (sugarcane bagasse, corn cob and cassava peels) were sorted, washed, cleansed to remove dirts and dried to remove moisture contents, and crushed into ground form to increase substrate’s surface area of contacts and sieved through a mesh size of 2 mm. The bioethanol distillates …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 2, 2022 · pp. 1–9 Read article
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Parametric Analysis of Ribbed Channels for Gas Turbine Engines
Abstract: This work uses experimental data to validate a ribbed surface that is computationally examined interior passageway of a static blade on a turbine. to replicate an illustration from a released publication while researching the Computational Fluid Dynamic conjugated heat transmission. The turbulence simulation matched the most closely. Publicly available physical practical results were found by working on Ansys Workbench. Convective heat exchange efficiencies additionally to stress profiles utilizing those computationally …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 2, 2023 · pp. 28–34 Read article
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Thermodynamic Analysis of an Adsorption Refrigeration System
Abstract: In this paper, thermodynamics analysis of an adsorption refrigeration pair (activated carbon and methanol) at adsorption equilibrium conditions has been proposed. Similar analyses have been done by different scientists for different combinations of adsorbent-adsorbate pairs. Adsorption refrigeration processes normally occurs in physical adsorption condition and activated carbon molecules being nonpolar in nature, micropores approach of adsorption (Polanyi’s micropores theory and D-A equation) has been followed here. Analysis of the adsorption …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 1, Issue 1, 2015 · pp. 1–9 Read article
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A Dynamic Role of Thermodynamics Chemistry in Refrigeration and Air Conditioner Devices
Abstract: Thermodynamics plays a very crucial role in our daily life. Almost all the activities that we do or observe are all based on the principles of thermodynamics. Here, some of the common routine activities of refrigeration and air conditioners are brought into limelight that is explained by the phenomenon of thermodynamics. Thermodynamics is a branch of physics concerned with heat and temperature and their relation to energy and work. It …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 1, 2017 · pp. 19–25 Read article