Download or read book Competitive Adsorption of Dyes congo Red Methylene Blue Malachite Green on Activated Carbon written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this work is the study of adsorption of dye solution which is a mixture of three dyes (methylene blue, congo red & malachite green) using commercial activated carbon. Removal of these dyes from aqueous solution using commercial activated carbon has been investigated. Liquid phase adsorption experiments were conducted. Batch adsorption studies are carried out by observing the effect of experimental parameters, namely, pH, amount of adsorbents, contact time and temperature. Adsorption capacity of activated carbon is determined for competitive adsorption of mixture of dyes. Optimum conditions for dye removal are studied like pH value, contact time required, amount of adsorbent, temp, etc. The results generated by this project work can be used for determination of optimum conditions for adsorption of mixture of dyes in aqueous solutions. Dyes are present in mixture form in various Industrial effluents like Textile Industries, Sewage water, Water treatment plants. This work can have use in Design of adsorption columns for dyes removal.
Download or read book Carbon Nanomaterials and their Composites as Adsorbents written by J. Tharini and published by Springer Nature. This book was released on with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Adsorptive Removal of Textile Dyes from Aqueous Solution by Activated Carbon and Activated Carbon Mno2 Nanocomposite Adsorbent Derived From Typha Angustata L written by and published by True Dreamster. This book was released on 2024-05-06 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characteristics of the activated carbon and the changes in that of the modified activated carbon were verified by SEM, EDX, XRD, XPS, BET and FT-IR analyses;·The SEM studies indicate the formation of regular structure with net thin fibrils of AC; and spherical shape and smaller than 18nm in size of porous surface created in AC-MnO2-NC. The EDX studies show the presence of the elements, Carbon, Oxygen, Sodium, Magnesium, Phosphorous, Sulphur, Chlorine, Potassium and Calcium in AC. In case of AC-MnO2-NC in addition to these elements, the capping Manganese is proved. The XRD studies indicate the formation of short range crystalline structure and abundance of amorphous structure of the activated carbon and the modified activated carbon. The presence of Carbon and Oxygen in the activated carbon and in addition to these elements, the presence of Manganese in the modified activated carbon are also revealed by XPS studies. The BET studies show that the surface area of AC is 83.54m2/g and that for AC-MnO2-NC is 147.76m2/g. The FT-IR study suggest that the capping of MnO2 in modified activated carbon and the presence of the functional groups viz., -OH, -C=O, -C=C, -C-H, -CH2, -CH3 in the two adsorbents. The percentage of dye removal increases with increasing agitation time and adsorbent dose and decreases with increasing initial dye concentration. An increase in the time of agitation was found to be directly proportional to the amount of dye adsorbed per unit weight of the adsorbent. The adsorption of dyes from aqueous solutions attain equilibrium at different agitation time which depend on initial dye concentrations and initial pH of the dye solutions.
Download or read book Cereal Straw as a Resource for Sustainable Biomaterials and Biofuels written by RunCang Sun and published by Elsevier. This book was released on 2010-01-18 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials from renewable resources are receiving increased attention, as leading industries and manufacturers attempt to replace declining petrochemical-based feedstocks with products derived from natural biomass, such as cereal straws. Cereal straws are expected to play an important role in the shift toward a sustainable economy, and a basic knowledge of the composition and structure of cereal straw is the key to using it wisely. Cereal Straw as a Resource for Sustainable Biomaterials and Biofuels: Chemistry, Extractives, Lignins, Hemicelluloses and Cellulose provides an introduction to straw chemistry. Topics discussed include the structure, ultrastructure, and chemical composition of straw; the structure and isolation of extractives from the straw; the three main components of straw: cellulose, hemicelluloses, and lignins; and chemical modifications of straw for industrial applications. This book will be helpful to scientists interested in the areas of natural resource management, environmental chemistry, plant chemistry, material science, polysaccharide chemistry, and lignin chemistry. It will also be of interest to academic and industrial scientists/researchers interested in novel applications of agricultural residues for industrial and/or recycling technologies. Provides the basics of straw composition and the structure of its cell walls Details the procedures required to fractionate straw components to produce chemical derivatives from straw cellulose, hemicelluloses, and lignins Elucidates new techniques for the production of biodegradable materials for the energy sector, chemical industry, and pulp and paper business
Download or read book Adsorption from Aqueous Solution written by and published by . This book was released on 1968 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Activated Carbon for Malachite Green and Remazol Brilliant Blue R Dyes Removal written by Mohamad Firdaus Mohamad Yusop and published by . This book was released on 2013 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biomass Derived Materials for Environmental Applications written by Ioannis Anastopoulos and published by Elsevier. This book was released on 2022-05-20 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomass-Derived Materials for Environmental Applications presents state-of-the-art coverage of bio-based materials that can be applied to address the growing global concern of pollutant discharge in the environment. The book examines the production, characterization and application of bio-based materials for remediation. Organized clearly by type of material, the book includes details on lignocellulosic materials, natural clays, carbonaceous materials, composites and advanced materials from natural origins. Readers will find an interdisciplinary and practical examination of these materials and their use in environmental remediation that will be valuable to environmental scientists, materials scientists, environmental chemists, and environmental engineers alike. Highlights a wide range of synthetic methodologies, as well as physicochemical and engineered features of bio-based materials for environmental purposes Provides in-depth examination of bio-based materials and their characteristics and advantages in environmental remediation Covers a range of specific materials, including background information, key results, critical discussions, conclusions and future perspectives
Download or read book Advanced Functional Materials Properties and Applications written by Inamuddin, and published by Trans Tech Publications Ltd. This book was released on 2016-10-03 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributors of this collection have extensive experience at various field of development the materials and technology for advanced applications. This book is a result of collaboration between all contributing authors who agreed to share their research expertise as well as visions for the future materials development.
Download or read book Effluent Dye Removal by Microwave Assisted Activated Carbon written by Rehab Abdelghaffar and published by Springer Nature. This book was released on 2023-10-13 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the potential of advanced microwave techniques, specifically microwave-assisted pyrolysis, for the production, adsorption, and regeneration of activated carbon (AC) as a promising solution to address wastewater pollution caused by dyes. The author begins with a chapter devoted to the environmental implications of water pollution and emphasizes the characteristics of dyes and various treatment techniques for their removal. The advantages and disadvantages of commercially available activated carbon are also discussed, along with the determinants for effective adsorption using high-quality activated carbon. Additionally, the chapter delves into the different types of adsorbents, including agricultural and industrial waste, as well as bioadsorbents such as microorganisms. In Chapter 2, readers will find the latest trends in using microwave techniques for the activation process. In this chapter, the author elucidates the characteristics and mechanism of microwave heating and compares it with conventional heating methods. The advantages of microwave techniques, such as improved activation procedures and the influence of different factors, are explored. Various modeling and optimization approaches for adsorption and different techniques for analyzing the surface chemistry of activated carbons are also discussed. Furthermore, the chapter showcases the applications of microwave-assisted activated carbon for dye removal. The book closes with a chapter devoted to the recycling and regeneration of spent activated carbon (SAC) using microwave techniques. In this chapter, the author examines the procedures for SAC regeneration through microwave-assisted pyrolysis and highlights the advantages over conventional heating methods. The applications of microwave-assisted activated carbon regeneration and other miscellaneous technologies utilizing microwave heating for AC production and SAC regeneration are also explored. Given its breadth, this book is a valuable resource for researchers, professionals, and policymakers in the field of environmental science and engineering.
Download or read book Biomass and Activated Carbon Dye Adsorption written by R. Bhuvaneswari and published by . This book was released on 2023-05-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Biomass and Activated Carbon Dye Adsorption" by R. Bhuvaneswari is a comprehensive book that delves into the latest research and developments in the field of adsorption of dyes using biomass and activated carbon. The book covers various aspects of adsorption, including adsorbents, adsorption kinetics, isotherms, equilibrium, surface chemistry, and physical and chemical adsorption. It discusses the different types of pores such as micropores, mesopores, and macropores, and their significance in adsorption. The book also examines the surface area and functional groups of adsorbents, and how they affect adsorption capacity. The author explains the various techniques involved in the production of activated carbon from biomass, such as biomass pyrolysis, carbonization, and activation using different activating agents, activation temperatures, and activation time. The book also discusses the factors affecting adsorption capacity, such as pH, temperature, and concentration, and the methods of regeneration of used adsorbents. The book focuses on the application of biomass and activated carbon for wastewater treatment, specifically for the removal of textile dyes such as reactive dyes, azo dyes, direct dyes, acid dyes, basic dyes, and disperse dyes. The author describes the different adsorption mechanisms such as intraparticle diffusion, external mass transfer, film diffusion, and pore diffusion, and their role in the adsorption process. The book also covers the various interactions involved in adsorption, such as electrostatic interaction, hydrogen bonding, and π-π stacking, and the concept of competitive adsorption. The author explains the thermodynamics of adsorption, including entropy, enthalpy, and free energy. Overall, this book is a valuable resource for researchers, academics, and professionals in the field of environmental science and engineering who are interested in the application of biomass and activated carbon for the removal of textile dyes from wastewater. It provides a comprehensive understanding of the adsorption process and the factors affecting adsorption, as well as the methods of production and modification of adsorbents.
Download or read book Dyes and Pigments written by Ahmet Gürses and published by Springer. This book was released on 2016-05-04 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the authors go back to basics to describe the structural differences between dyes and pigments, their mechanisms of action, properties and applications. They set the scene by explaining the reasons behind these differences and show how dyes are predominately organic compounds that dissolve or react with substrates, whereas pigments are (predominantly) finely ground inorganic substances that are insoluble and therefore have a different mode of coloring. They also describe the role of functional groups and their effect on dyeing ability, contrasting this with the way in which pigments cause surface reflection (or light absorption) depending on their chemical and crystalline structure and relative particle size. The book explores the environmental impact of dyes in a section that covers the physical, chemical, toxicological, and ecological properties of dyes and how these are used to assess their effect on the environment and to estimate whether a given product presents a potential hazard. Lastly, it assesses how, in addition to their traditional uses in the textile, leather, paper, paint and varnish industries, dyes and pigments are indispensable in other fields such as microelectronics, medical diagnostics, and in information recording techniques.
Download or read book Green Chemistry for Dyes Removal from Waste Water written by Sanjay K. Sharma and published by John Wiley & Sons. This book was released on 2015-03-04 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of synthetic chemical dyes in various industrial processes, including paper and pulp manufacturing, plastics, dyeing of cloth, leather treatment and printing, has increased considerably over the last few years, resulting in the release of dye-containing industrial effluents into the soil and aquatic ecosystems. The textile industry generates high-polluting wastewaters and their treatment is a very serious problem due to high total dissolved solids (TDS), presence of toxic heavy metals, and the non-biodegradable nature of the dyestuffs in the effluent. The chapters in this book provide an overview of the problem and its solution from different angles. These problems and solutions are presented in a genuinely holistic way by world-renowned researchers. Discussed are various promising techniques to remove dyes, including the use of nanotechnology, ultrasound, microwave, catalysts, biosorption, enzymatic treatments, advanced oxidation processes, etc., all of which are "green." Green Chemistry for Dyes Removal from Wastewater comprehensively discusses: Different types of dyes, their working and methodologies and various physical, chemical and biological treatment methods employed Application of advanced oxidation processes (AOPs) in dye removal whereby highly reactive hydroxyl radicals are generated chemically, photochemically and/or by radiolytic/ sonolytic means. The potential of ultrasound as an AOP is discussed as well. Nanotechnology in the treatment of dye removal types of adsorbents for removal of toxic pollutants from aquatic systems Photocatalytic oxidation process for dye degradation under both UV and visible light, application of solar light and solar photoreactor in dye degradation
Download or read book Biosorption of Heavy Metals written by Bohumil Volesky and published by CRC Press. This book was released on 1990-08-15 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This state-of-the-art volume represents the first comprehensively written book which focuses on the new field of biosorption. This fascinating work conveys essential fundamental information and outlines the perspectives of biosorption. It summarizes the metal-sorbing properties of nonliving bacterial, fungal, and algal biomass, plus highlights relevant metal-binding mechanisms. This volume also discusses the aspects of obtaining and processing microbial biomass and metal-chelating chemicals into industrially applicable biosorbent products. Microbiologists, chemists, and engineers with an interest in new technological and scientific horizons will find this reference indispensable.
Download or read book Photocatalytic Degradation of Dyes written by Sushma Dave and published by Elsevier. This book was released on 2021-08-09 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photocatalytic Degradation of Dyes: Current Trends and Future Perspectives covers in detail current trends and future aspects on photocatalytic degradation of organic dyes using novel photocatalytic techniques such as metallic nanoparticles, heterogeneous and hybrid systems using visible light irradiation. It highlights the most recent scientific and technological achievements and importance of degradation of dyes in the textile effluent by simple environmental friendly approaches using eco-friendly catalysts. It is of assistance to everyone interested in bioremediation of effluents: professionals, consulting engineers, academicians, and research scholars as well. Describes the basic photocatalytic techniques and their application in wastewater treatment Covers the key reactive species accounting for the photodegradation of different dyes, providing helpful guidelines that could be applied to foster the development of efficient photodegradation systems Includes Description of a wide variety of catalysts and their application in degradation of dyes in the effluent of variable matrices (such as textile effluent, pharmaceutical industry effluent, food industry effluent) Presents the application of doped semiconductors in the degradation of dyes, hybrid systems and their importance in the dye degradation Describes the biological synthesis of metallic nanostructures and their use in dye degradation using visible range of light irradiation Discusses the mechanistic aspect of the dye degradation using photo catalysts
Download or read book Industrial Dyes written by Klaus Hunger and published by John Wiley & Sons. This book was released on 2007-09-24 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: What would life be like without color? Ever since one can think back, color has always accompanied mankind. Dyes - originally obtained exclusively from natural sources - are today also produced synthetically on a large scale and represent one of the very mature and traditional sectors of the chemical industry. The present reference work on Industrial Dyes provides a comprehensive review of the chemistry, properties and applications of the most important groups of industrial dyes, including optical brighteners. It also outlines the latest developments in the area of functional dyes. Renowned experts in their respective fields have contributed to the chapters on chemical chromophores, synthesis and application of the various dye classes, textile dyeing and non-textile dyeing. The book is aimed at all professionals who are involved in the synthesis, production, manufacture or application of dyes and will prove to be an indispensable guide to all chemists, engineers and technicians in dye science and industry.
Download or read book Green Adsorbents written by George Z. Kyzas and published by Bentham Science Publishers. This book was released on 2015-12-01 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption technology is a promising avenue for wastewater treatment. Numerous adsorbent materials are presently synthesized. Green or environmental friendly adsorbents are derived from plants and agricultural crop sources, giving them a very low production cost when compared to synthetic polymers. This monograph explains the basic principles of green adsorption technology, their production processes and strategies to remove different categories of environmental pollutants (dyes, heavy metals and phenols/pesticides). The book explains details in terms of features such as adsorption capacity, physico-chemical kinetics and reuse potential. A summary of the economics and future prospect for green adsorption technology is also given. This text is a handy reference for environmental chemistry students, researchers and policy makers.
Download or read book Adsorption Fundamental Processes and Applications written by Mehrorang Ghaedi and published by Academic Press. This book was released on 2021-03-19 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption: Fundamental Processes and Applications, Volume 33 in the Interface Science and Technology Series, discusses the great technological importance of adsorption and describes how adsorbents are used on a large scale as desiccants, catalysts, catalyst supports, in the separation of gases, the purification of liquids, pollution control, and in respiratory protection. Finally, it explores how adsorption phenomena play a vital role in many solid-state reactions and biological mechanisms, as well as stressing the importance of the widespread use of adsorption techniques in the characterization of surface properties and the texture of fine powders. Covers the fundamental aspects of adsorption process engineering Reviews the environmental impact of key aquatic pollutants Discusses and analyzes the importance of adsorption processes for water treatment Highlights opportunity areas for adsorption process intensification Edited by a world-leading researcher in interface science
