A Study of the Factors that Affect the Preparation of Activated Carbons from Olive Pits

A Study of the Factors that Affect the Preparation of Activated Carbons from Olive Pits PDF Author: Abdulaziz Alghamdi
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 0

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Book Description
Activated carbon is a widely used functional material. One of the most significant and resource demanding areas of activated carbon application is wastewater treatment in industry scale. The largest challenge, manufacturers face nowadays is the cost of commercially produced activated carbon. Moreover, the process of activated carbon regeneration is often complicated and cost demanding. The aim of this study is to investigate suitable conditions for production of activated carbon from raw materials, namely - from olive pits. This would provide a profitable methodology of production of activated carbon from the cheap and renewable material. Four factors, known to affect the process of carbon activation were investigated in this study: nitrogen gas flow rate (200 - 400 mL/min), concentration of zinc chloride, as a chemical activator (25 -- 50 %), temperature of activation (600 - 800 °C) and activation time (1.5 - 3 hours). The quality of activation was refereed by comparing specific surface area for each of the factor combinations --

A Study of the Factors that Affect the Preparation of Activated Carbons from Olive Pits

A Study of the Factors that Affect the Preparation of Activated Carbons from Olive Pits PDF Author: Abdulaziz Alghamdi
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 0

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Book Description
Activated carbon is a widely used functional material. One of the most significant and resource demanding areas of activated carbon application is wastewater treatment in industry scale. The largest challenge, manufacturers face nowadays is the cost of commercially produced activated carbon. Moreover, the process of activated carbon regeneration is often complicated and cost demanding. The aim of this study is to investigate suitable conditions for production of activated carbon from raw materials, namely - from olive pits. This would provide a profitable methodology of production of activated carbon from the cheap and renewable material. Four factors, known to affect the process of carbon activation were investigated in this study: nitrogen gas flow rate (200 - 400 mL/min), concentration of zinc chloride, as a chemical activator (25 -- 50 %), temperature of activation (600 - 800 °C) and activation time (1.5 - 3 hours). The quality of activation was refereed by comparing specific surface area for each of the factor combinations --

A Study of Factors that Affect the Preparation of Activated Carbons from Date Pits

A Study of Factors that Affect the Preparation of Activated Carbons from Date Pits PDF Author: Zenat Alkhayat
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 0

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Book Description
The study was designed to investigate optimal conditions of the activated carbon preparation from date pits using zinc chloride solution as a chemical activator. Activation conditions varied were inert (N2) gas flow rate, impregnation ratio, activation temperature and time. Factorial analysis and analysis of variance were implemented to study the mutual influence of these conditions on the surface properties of the activated carbon samples prepared. It was found that the iodine number and the surface area are influenced by all four activation parameters. In the same time, the methylene blue number is only influenced by the activation temperature and time. The optimal conditions for the preparation of the activated carbon from date pits were found to be 200 mL min−1 of nitrogen gas flow rate, 25% zinc chloride solution concentration, 800 °C activation temperature and 3.0 hours of activation time. These activation conditions allowed to achieve 407.150 mg g−1 of iodine number, 25.38 mg g−1 of methylene blue number and 390.50 m2 g−1 of the surface area --

A Study of the Factors that Affect the Preparation of Activated Carbons from Acorn Shell

A Study of the Factors that Affect the Preparation of Activated Carbons from Acorn Shell PDF Author: Abdullah J. Almalki
Publisher:
ISBN:
Category : Acorns
Languages : en
Pages : 94

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Book Description
Activated carbon is and has been one of the most efficient agents applied in water and wastewater treatment. However, commercially produced activated carbon can be expensive and is normally produced from non-renewable sources. In this study the aim is to generate activated carbon from a renewable and low-cost materials that occur naturally and are generally discarded. Factors studied influencing the efficiency of the activation process included activation temperature (600 °C, and 800 °C), carbonization time (1 hr, and 3 hr), and nitrogen flow rate (200 mL/min, 400 mL/min), impregnation ratio (25% ZnCl2, and 50% ZnCl2) and activation by ZnCl2 as chemical agent. Impregnation ratio refers to the concentration of chemical agent that was used to activate the carbon. The maximum surface area of activated carbon is 557.2 m2/g at 200 mL/min of flow rate, 50% of ZnCl2, 800 °C, and 3 hr of activation time --

Carbon-Based Metal Free Catalysts

Carbon-Based Metal Free Catalysts PDF Author: Abdullah Mohammed Ah Asiri
Publisher: Elsevier
ISBN: 0323885187
Category : Technology & Engineering
Languages : en
Pages : 290

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Book Description
Carbon-Based Metal Free Catalysts: Preparation, Structural and Morphological Property and Application covers the different aspects of carbon-based metal free catalysts, including the fabrication of catalysts from natural sources and carbon allotropes, their manufacturing and design, characterization techniques, and applications. Special features in the book include illustrations and tables which summarize up-to-date information on research carried out on manufacturing, design, characterization and applications of metal free catalysts. This book assembles the information and knowledge on metal free catalysts and emphasizes the concept of green technology in the field of manufacturing and design. It is an ideal reference source for lecturers, students, researchers and industrialists working in the field of new catalyst development, especially polymer composites and is a valuable reference book handbook for teaching, learning, and research. Describes the design on metal-free catalysts Includes manufacturing technique of carbon-based metal free catalysts Lists applications of carbon-based metal free catalysts Discusses the characterization of carbon-based metal free catalysts

Air, Gas, and Water Pollution Control Using Industrial and Agricultural Solid Wastes Adsorbents

Air, Gas, and Water Pollution Control Using Industrial and Agricultural Solid Wastes Adsorbents PDF Author: Tushar Kanti Sen
Publisher: CRC Press
ISBN: 1138196851
Category : Science
Languages : en
Pages : 320

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Book Description
Air and water pollution occurs when toxic pollutants of varying kinds (organic, inorganic, radioactive and so on) are directly or indirectly discharged into the environment without adequate treatment to remove these potential pollutants. There are a total of 13 book chapters in three sections contributed by significant number of expert authors around the world, aiming to provide scientific knowledge and up-to-date development of various solid wastes based cost-effective adsorbent materials and its sustainable application in the removal of contaminates/pollutants from air, gas and water. This book is useful for the professions, practicing engineers, scientists, researchers, academics and undergraduate and post-graduate students’ interest on this specific area. Key Features: • Exclusive compilation of information on use of industrial and agricultural waste based adsorbents for air and water pollution abatement. • Explores utilization of industrial solid wastes in adsorptive purification and agricultural and agricultural by-products in separation and purification. • Discusses cost-effective solid wastes based emerging adsorbents. • Alternative adsorbents in the removal of a wide range of contaminants and pollutants from water is proposed. • Includes performance of unit operations in waste effluents treatment.

Activated Carbon Adsorption

Activated Carbon Adsorption PDF Author: Roop Chand Bansal
Publisher: CRC Press
ISBN: 1420028812
Category : Science
Languages : en
Pages : 498

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Book Description
High surface area, a microporous structure, and a high degree of surface reactivity make activated carbons versatile adsorbents, particularly effective in the adsorption of organic and inorganic pollutants from aqueous solutions. Activated Carbon Adsorption introduces the parameters and mechanisms involved in the activated carbon adsorption

Polymer-Based Composites

Polymer-Based Composites PDF Author: V. Arumugaprabu
Publisher: CRC Press
ISBN: 1000433137
Category : Technology & Engineering
Languages : en
Pages : 176

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Book Description
The increasing use of composite materials over conventional materials has been a continual trend for over a decade. While the fundamental understanding of fiber reinforcement has not changed, many new material advancements have occurred, especially in manufacturing methods, and there is an ever-growing number of composite material applications across various industries. Polymer-Based Composites: Design, Manufacturing, and Applications presents the concepts and methods involved in the development of various fiber-reinforced composite materials. Features: Offers a comprehensive view of materials, mechanics, processing, design, and applications Bridges the gap between research, manufacturing science, and analysis and design Discusses composite materials composed of continuous synthetic fibers and matrices for use in engineering structures Presents codes and standards related to fiber-reinforced polymer composites Includes case studies and examples based on industrial, automotive, aerospace, and household applications This book is a valuable resource for advanced students, researchers, and industry personnel to understand recent advances in the field and achieve practical results in the development, manufacture, and application of advanced composite materials.

Carbon-Based Material for Environmental Protection and Remediation

Carbon-Based Material for Environmental Protection and Remediation PDF Author: Mattia Bartoli
Publisher: BoD – Books on Demand
ISBN: 1789845866
Category : Science
Languages : en
Pages : 190

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Book Description
Carbon-Based Material for Environmental Protection and Remediation presents an overview of carbon-based technologies and processes, and examines their usefulness and efficiency for environmental preservation and remediation. Chapters cover topics ranging from pollutants removal to new processes in materials science. Written for interested readers with strong scientific and technological backgrounds, this book will appeal to scientific advisors at private companies, academics, and graduate students.

Ion Exchange in Analytical Chemistry

Ion Exchange in Analytical Chemistry PDF Author: William Rieman
Publisher: Elsevier
ISBN: 1483186512
Category : Science
Languages : en
Pages : 312

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Book Description
Analytical Chemistry, Volume 38: Ion Exchange in Analytical Chemistry provides a broad survey of the important role that ion exchange can and should play in chemical analysis. This book focuses on the plate-equilibrium theory of chromatography, which is less difficult theoretically than the mass-transfer theory. Organized into 11 chapters, this volume begins with an overview of the earliest recorded application of ion exchange. This text then examines how high temperature affects ion-exchange resins. Other chapters consider the exchange of ions between a solid ion-exchanging material and a solution, which is a typically reversible reaction. This book describes as well the relatively simple separations and other applications of ion exchange to analytical chemistry. The final chapter deals with the interesting nature of the metal complexes formed within the exchanger and describe the use of ion-exchange distribution studies to determine the stability and nature of complexes existing in the solution. This book is a valuable resource for analytical chemists.

Activated Carbon Surfaces in Environmental Remediation

Activated Carbon Surfaces in Environmental Remediation PDF Author: Teresa J. Bandosz
Publisher: Elsevier
ISBN: 0080455956
Category : Technology & Engineering
Languages : en
Pages : 587

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Book Description
Activated Carbon Surfaces in Environmental Remediation provides a comprehensive summary of the environmental applications of activated carbons. In order to understand the removal of contaminants and pollutants on activated carbons, the theoretical bases of adsorption phenomena are discussed. The effects of pore structure and surface chemistry are also addressed from both science and engineering perspectives. Each chapter provides examples of real applications with an emphasis on the role of the carbon surface in adsorption or reactive adsorption. The practical aspects addressed in this book cover the broad spectrum of applications from air and water cleaning and energy storage to warfare gas removal and biomedical applications. This book can serve as a handbook or reference book for graduate students, researchers and practitioners with an interest in filtration, water treatment, adsorbents and air cleaning, in addition to environmental policies and regulations. Addresses fundamental carbon science and how it relates to applications of carbon surfaces Describes the broad spectrum of activated carbon applications in environmental remediation Serves as a handbook or reference book for graduate students, researchers and practitioners in the field