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2000 articles for “PLA” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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An Analytical Approach to Calculate the One-Dimensional Drift Velocity in Bubble Columns
Abstract: The design and scale-up of a bubble column reactor require a complete understanding of its complex hydrodynamics, which is influenced by the physical properties of the phases, the operating variables, and the design parameters. Current design procedures for bubble columns involve several steps of pilot-plant experimentation, which is expensive and time-consuming. One of the critical unknown parameters involved in designing any gas-liquid system is the gas holdup. The gas holdup …
Published in International Journal of Chemical Engineering and Processing · Vol. 5, Issue 2, 2019 · pp. 1–9 Read article
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Parametric Analysis and Optimization of Nuclear Assisted Electrolytic Hydrogen Production System for On-site Applications
Abstract: The use of compact water electrolyser units as an alternative source of hydrogen to the high pressure hydrogen cylinder banks used at present in nuclear and thermal power reactors for turbo-generator rotor cooling applications has been analysed in this work. Financial metrics have been used for assessment of the technology substitution in the nuclear industry in India, primarily by comparing the levelised costs of onsite hydrogen generation in small generators …
Published in International Journal of Chemical Engineering and Processing · Vol. 6, Issue 1, 2020 · pp. 14–26 Read article
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A Review on the Multiscale Integrated Approach in Multiphase Reaction Engineering and Process Intensification: Sustainable Energy and Process Design
Abstract: Abstract: Multiphase reaction engineering and process is important path for conversion of natural resources into fuels and chemicals to reduce greenhouse gas emission and increasing energy supply to meet growing global demand. This requires multiphase reactor design and modeling development for methane conversion into chemical building blocks, upgrading heavy oil and carbon capture. This multiphase reactor modeling involves the multiscale approach, which requires the knowledge of how phenomena at a …
Published in International Journal of Chemical Engineering and Processing · Vol. 6, Issue 2, 2020 · pp. 18–26 Read article
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Overview of Petrochemical Solid Waste Composition and Impact on the Environment
Abstract: ABSTRACTPetrochemicals refer to all those compounds that can be derived from the petroleum refinery products. Petrochemical industries impart vital role in the national economy. Environmental issues have now become important considerations due to the potential harmful impacts produced by chemical releases. Unsafe emissions may be due to improper production process, poor maintenance practices and internal operational process problems. Petrochemicals cause acute and chronic health diseases such as ulcer, allergy, cancer, …
Published in International Journal of Chemical Engineering and Processing · Vol. 6, Issue 2, 2020 · pp. 6–11 Read article
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Studies on sources of lithium
Abstract: AbstractLi is abundant in nature amounting 20 mg/kg of the earth crust. Li widely used in Li ion batteries (LIBs), powerLIBs, chemicals, ceramics, glasses, rubber, reactors, pharmacy, space sectors and alloyed to Al. Sources of Li are natural deposit of minerals, salt crust, brine, salt lakes and ocean basin accumulations. Economical route of extractions are hydrometallurgy and pyrometallurgy. Sorption of selective element by inorganic ion exchange applied for poor containment …
Published in International Journal of Chemical Engineering and Processing · Vol. 6, Issue 2, 2020 · pp. 12–17 Read article
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Effect of Particle Size Distribution (PSD) on the Rheology of Coal Water Slurry (CWS)
Abstract: A new type of complex fluid, which was prepared using Sodium Lignosulfonate as a polymeric additive, has been investigated for its properties as a multifunctional coal water slurry system with respect to particle size distribution and rheological properties. Coal water slurry is a double-phase system consists of fine coal particles suspended in water. The properties mainly depend on the physical and chemical characteristics of coal, additives and flocculation tendency. This …
Published in International Journal of Chemical Engineering and Processing · Vol. 7, Issue 1, 2021 · pp. 45–57 Read article
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Preparation and Performance Evaluation of LDPE/Rice Starch Blend Composites by Extrusion Method
Abstract: Discarding synthetic polymers such as low-density polyethylene (LDPE) used in food packaging ingredients is today considered a serious ecological threat because they are non-decomposable. The goal of this article is to create a decomposable polymer by incorporating a bio-polymer (starch) into its polymeric matrix. This article focuses on the preparation and characterization of rice starch (RS)-mixed LDPE decomposable polymer. In the first study, the effect of variability of RS content …
Published in International Journal of Chemical Engineering and Processing · Vol. 8, Issue 1, 2022 · pp. 1–22 Read article
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Suitability of Methyldiethanolamine (MDEA) and Piperazine (PZ) for Improving CO2 Absorption Efficiency Using Rotating Packed Bed (RPB) Technology: A Modeling and Simulation Study
Abstract: Carbon dioxide (CO2) capture and storage (CCS) is an essential technology for reducing atmospheric CO2 emissions and mitigating climate change, especially in fossil-fuel power generation. However, the high cost of CCS technologies has hindered their widespread adoption. In this study, we modeled CO2 removal using a rotating packed bed (RPB) technology using Visual Fortran and Aspen Plus software. We made use of a blended amine solution including different molar concentration …
Published in International Journal of Chemical Engineering and Processing · Vol. 9, Issue 2, 2023 · pp. 9–15 Read article
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Chemical Safety in Solid Waste Management
Abstract: Solid waste disposal is a burning issue now-a-days. Municipal solid waste consists of wastes like paper, plastics, glass, metal, food, etc. These wastes come from various sources, may be houses, industries, hotels, etc. This paper focuses specifically on the chemical waste disposal. It is observed that in society many times illegal dumping of toxic chemical waste is done. This is not a good practice. This can pose serious hazard to …
Published in International Journal of Environmental Chemistry · Vol. 1, Issue 2, 2015 · pp. 4–8 Read article
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Trees Conservation: Protecting Life on Earth
Abstract: Today, one of the biggest concerns about the environment and our Earth is the need for tree conservation. Trees are the cornerstones of all the ecosystems and the building blocks for all the living organisms on Earth. It is difficult to even imagine our lives without trees. There would be no place for the birds and animals to live and have leisure time. Trees stabilize soils, regulate water and carbon …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 1, 2016 · pp. 34–35 Read article
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Environmentalism-Protecting Life on Earth
Abstract: Our planet is endowed with vast population. Day-by-day due to increased usage of its resources and energy, it is becoming difficult to survive like this for long. The environment of Earth is deteriorating at an alarming rate making it unfit to survive not only for us but for our future generations to come. ‘Environmentalism’ is a new concept that aims to identify the problems associated with the environment and ways …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 2, 2016 · pp. 3–4 Read article
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GLOBAL WARMING AND ITS PREVENTION THROUGH BIOGAS
Abstract: The impact of global warming has drastically affected the ecosystem and also the life on earth. The main causes of global warming are the pollutant gases which are released into the atmosphere by different sources. The major one being the automobile industries followed by different wastes that are generated on a daily basis. So the gases released during the combustion or burning of wastes are responsible for global warming. The …
Published in International Journal of Environmental Chemistry · Vol. 3, Issue 2, 2017 · pp. 12–18 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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Removal of Methyl Orange from Wastewater Using Composite Material
Abstract: The textile industry is one of the pollute activities that most consume water. Industrial dyes are dangerous pollutants, resulting from the textile industry. The textile dyes significantly increase inhibit plant growth, enter the food chain, promote toxicity, and carcinogenicity. The removal of textiles dyes is usually proposed via adsorption represents a sustainable solution. A composite material was prepared by polystyrene in combination with commercial activated carbon. A series of experiments …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 1, 2020 · pp. 42–46 Read article
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Evaluation of Some Trace Metals (Zn, Cd, Cu and Pb) in Sewage Sludge Samples Taken from Some Pumping Stations in Benghazi-Libya
Abstract: Due to the little data available on the levels of trace metals concentration in sewage sludge in and around Benghazi city, it was necessary to determine the current concentration, composition, distribution and sources of trace metals in the sludge of different wastewater treatment plants. Accordingly, raw sewage sludge samples collected from sixteen wastewater-pumping stations at Benghazi city have undergone evaluation of pH and some trace metals concentrations (mainly Zn, Cd, …
Published in International Journal of Environmental Chemistry · Vol. 6, Issue 2, 2020 · pp. 13–19 Read article
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Attempt on the Rearing of the Black Soldier Fly (BSF), Hermetia illucens (Linnaeus) (Order: Diptera and Family: Stratiomyidae) in environmental conditions of Malegaon Sheti Farm of Agricultural Development Trust, Baramati (India)
Abstract: For the efficient role in decomposition of the organic waste matters, the Black Soldier Fly, Hermetia illucens (Linnaeus) (Diptera: Stratiomyidae) established the significant natural resource. On an average life span of the adult is about twelve to thirteen days. The optimal temperature and relative humidity (RH) for average life span of the adult Black Soldier Fly, Hermetia illucens (Linnaeus) (Diptera: Stratiomyidae) is 31°C and 80% respectively. As relative humidity (RH) …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 1, 2021 · pp. 6–14 Read article
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Study of Solid Waste Management in Shrirampur, Pusad—Case Study
Abstract: Solid waste management (SWM) is one of the most essential services for maintaining the quality of life of the people and for ensuring better standard of health, sanitation and the environment. Total quantity of municipal solid waste (MSW) generated everyday has increased with increased population. Management of MSW has emerged as a problem which concern about environment. The present study was undertaken to study the existing system of collection, storage, …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 1, 2021 · pp. 15–22 Read article
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Air Pollution: A mini review
Abstract: As per World Resources Institute (1996) World’s population is around 7.06 billion and is expected togrow 10 billion by 2030. Due to the advancement of industrial revolution the polluted gas is pumpedinto the atmosphere which leads to warming the planet earth and rise in sea level which may result inserious food shortage. The global warming resulting from the emission of greenhouse gasesespecially CO2, has become a major concern in the …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 1, 2021 · pp. 23–26 Read article
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Electronic Waste Vs Environmental Sustainability: Global Ultimatum to Society
Abstract: We often suppose that the risks of electronic waste solely have an effect on us which come back directlywith it and are in the main a consequence of inappropriate handling. Obviously, this can be right andthere are many studies that proof the risks ensuing from direct contact with harmful materialscomparable to lead, metal or chromium. The studies together alert us concerning however differentelements, let's say brominated flame retardants generate toxic …
Published in International Journal of Environmental Chemistry · Vol. 7, Issue 1, 2021 · pp. 1–5 Read article
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Chemistry and Toxicological Impacts of Hazardous Substances in Electronic-Waste: A Review
Abstract: Over the recent past, the global market of electrical and electronic equipment (EEE) has grown exponentially, while the lifespan of these products has become increasingly shorter. Most of the cases Various heavy metals, halogenated compounds and radioactive elements which are present in ewaste,pose serious threat to the environment during their inappropriate recycling processes. Duringburning of the e-waste in the open environment, hazardous aromatic compounds and dioxins are generated which are …
Published in International Journal of Environmental Chemistry · Vol. 8, Issue 1, 2022 · pp. 17–21 Read article