Download or read book Comparative Adsorption Study Of Methylene Blue On Low Cost Adsorbent written by Sanu Paul and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low cost adsorbent are prepared from activated sugarcane bagasse (ASB), activated waste paper (AWP), and activated Delonix regia Fruit Pod (ADRF)which act as a useful adsorbent for the removal of methylene blue from aqueous phase. The study was carried out using batch experiments with synthetic wastewater having a methylene blue concentration. The effects of contact time were investigated and compared for all the three adsorbents. The adsorption process reached equilibrium within 120min of contact time almost for all adsorbent. Comparative study of contact time indicates that sugarcane bagasse adsorbed at faster rate and adsorbed the maximum. The Freundlich, Langmuir, models were used for mathematical description of the adsorption equilibrium, and it was found that the experimental data fitted very well to the Langmuir isotherm for all the three adsorbent. Batch adsorption studies, based on the assumption of a pseudo-first-order, pseudo-second-order, showed that the kinetic data followed closely a pseudo-second-order rather than a pseudo-first-order mechanism.

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 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 Processes for Water Treatment and Purification written by Adrián Bonilla-Petriciolet and published by Springer. This book was released on 2017-07-11 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides researchers and graduate students with an overview of the latest developments in and applications of adsorption processes for water treatment and purification. In particular, it covers current topics in connection with the modeling and design of adsorption processes, and the synthesis and application of cost-effective adsorbents for the removal of relevant aquatic pollutants. The book describes recent advances and alternatives to improve the performance and efficacy of this water purification technique. In addition, selected chapters are devoted to discussing the reliable modeling and analysis of adsorption data, which are relevant for real-life applications to industrial effluents and groundwater. Overall, the book equips readers with a general perspective of the potential that adsorption processes hold for the removal of emerging water pollutants. It can readily be adopted as part of special courses on environmental engineering, adsorption and water treatment for upper undergraduate and graduate students. Furthermore, the book offers a valuable resource for researchers in water production control, as well as for practitioners interested in applying adsorption processes to real-world problems in water treatment and related areas.

Download or read book Studies in Adsorption written by Earl Pettijohn and published by . This book was released on 1918 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparative Study of Tailored Activated Carbon from Waste Tires Against Commercial Activated Carbon F400 for the Removal of Methylene Blue written by Osmary C. Contreras and published by . This book was released on 2013 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although color represents a non-mandatory water quality standard, organic compounds such as dyes must be removed from wastewater before discharge. Dyes are considered to be aesthetic and toxic pollutants in water. Various water treatment processes have been studied in order to obtain an optimum removal of dyes. Adsorption by activated carbons (ACs) has demonstrated to be the technique of preference. However, the high cost of the precursor material and process for production could influence for its application. Therefore, it is necessary to find raw materials of low cost that requires limited processing and is easily available. In this study, chemical activation of waste tires for developing activated carbons was evaluated. Tires of 400 [micro]m nominal size were impregnated with potassium hydroxide (KOH) in different w/w ratios (0:1, 1:1, 2:1, 3:1, 4:1 and 5:1) and two other parameters were selected in order to obtain the best conditions for the desirable carbon; One is the activation temperature (600, 700 and 800°C) and the second is contact time during activation (1, 2 and 3 h). BET specific surface area and pore size distribution (PSD) for each carbon was determined. The activated carbon from waste tires with higher BET specific surface area and mesopore percentage was obtained with a KOH/tires (2/1), temperature 800°C and activation time 1 h. Adsorption isotherm, kinetic studies and microcolumn experiments were conducted with the selected activated carbon from waste tires (ACWT) and commercial activated carbon (F400) for the removal of methylene blue (MB). ACWT has demonstrated to be an effective adsorbent in removing MB but with lower adsorption capacity than that of F400, suggesting further studies need to be conducted for enhancing the activation process of waste tires.

Download or read book Chemistry Physics Of Carbon written by Ljubisa R. Radovic and published by CRC Press. This book was released on 2004-11-30 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest addition to this lauded series, this reference collects pioneering research on the chemistry and physics of carbon surfaces and the structural properties of carbons. Written by distinguished researchers affiliated with respected institutions, such as the Instituto Nacional del Carbn (INCAR) and the University of Reading, Chemistry an

Download or read book Manual of Symbols and Terminology for Physicochemical Quantities and Units Appendix II written by Robert L. Burwell and published by Elsevier. This book was released on 2013-09-17 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Manual of Symbols and Terminology for Physicochemical Quantities and Units–Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry, Part II: Heterogeneous Catalysis presents the pertinent definitions and terminologies concerning colloid and surface chemistry. This manual has been prepared by the Commission on Colloid and Surface Chemistry of the Division of Physical Chemistry of the International Union of Pure and Applied Chemistry. This book is comprised of one chapter subdivided into three sections. Section 1 presents a summary of definitions of several concepts involving surface chemistry. Section 2 presents a list of abbreviations and symbols used in colloid and surface chemistry. Section 3 presents a comprehensive index of symbols and terms that are arranged in alphabetical order to guide the readers. This book is a valuable resource for chemists and electrochemists.

Download or read book Activated Carbon Adsorption written by Roop Chand Bansal and published by CRC Press. This book was released on 2005-05-24 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Download or read book Adsorption Studies of Methylene Blue Using Seleced Agro waste as Low Cost Adsorbents written by Khing Gueok Tiong and published by . This book was released on 2015 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cellulose written by Matheus Poletto and published by BoD – Books on Demand. This book was released on 2015-12-09 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cellulose - Fundamental Aspects and Current Trends consists of 10 chapters written by international subject matter experts investigating the characteristics and current applications of this fascinating material. This book will help the reader to develop a deeper understanding about the concepts related to cellulose and the nanocellulose structure, modification, production, dissolution, and application. Biosynthesis mechanisms and medical applications of microbial cellulose are also discussed. This book will serve as the starting point for materials science researchers, engineers, and technologists from diverse backgrounds in physics, chemistry, biology, materials science, and engineering who want to know and better understand the unique characteristics of the most abundant biopolymer on earth.

Download or read book Effect of Mineral Organic Microorganism Interactions on Soil and Freshwater Environments written by Jacques Berthelin and published by Springer. This book was released on 2012-11-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Working Group M.O. (Interactions of soil minerals with organic components and microorganisms) (WGMO) of the International Soil Science Society (ISSS) was founded in 1990 at the 14th World Congress of Soil Science (Kyoto, Japan), with Professor P.M. Huang being the Chairman. Since then, the Working Group M.O. has served as a forum to bring together soil chemists, soil mineralogists, soil microbiologists, soil biochemists, soil physi cists and environmental, ecological, and health scientists. The objective of the Working Group M.O. is to promote research, teaching, and also the exchange of technology concerning the knowledge and the impact of the interactions between minerals-organics and microorganisms on environmental quality, agricultural sustainability, and ecosystem "health". This group is first a scientific group as defined just previously, but it also intends to develop exchange and transfer between scientists and engineers. The first International Meeting organized by Professor P. M. Huang, was held in Edmonton, Canada, in August 1992, where 87 papers were presented by scientists from 20 countries. Following this meeting, a two volume book was edited by P. M. Huang, J. Berthelin, J.-M. Bollag, W. B. McGill, and A. L. Page, entitled "Environmental impact of soil component interaction" : Volume I "Natural and anthropogenic organic-volume II "Metals, other inorganic and microbial activities", and published by c.R.C. Lewis Pub lishers (1995).

Download or read book Emerging Compounds Removal from Wastewater written by Giusy Lofrano and published by Springer Science & Business Media. This book was released on 2012-03-31 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last years the release of emerging pollutants such as Endocrine Disruptors (EDCs), Pharmaceuticals and Personal Care Products (PPCPs) into the environment has raised great concern. While investigating how to treat emerging pollutants from water and wastewater, researchers have drawn attention on the implementation of more environmentally friendly technologies able to achieve high removal efficiency at low costs. Emerging Compounds Removal from Wastewater by Green Technologies: Natural and Solar Based Treatments introduces green chemistry in relation to these treatment technologies. More specifically, this volume: • Reviews the suitability of alternative adsorption processes that use natural adsorbents natural materials or agricultural waste in light of the inefficiency of conventional wastewater treatment plants; • Evaluates the potential of constructed wetlands for the removal of some categories of trace contaminant of worldwide relevance in view of their application as decentralized systems; • Highlights the promising role of a special class of oxidation techniques defined as Advanced Oxidation Processes (AOPs) supported by sunlight. This volume will be of great interest to students, technicians, and academics alike who are interested in evaluating and selecting the technologies that lead to better and more sustainable treatment of this huge class of pollutants.

Download or read book Green Adsorbents to Remove Metals Dyes and Boron from Polluted Water written by Inamuddin and published by Springer Nature. This book was released on 2020-08-31 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews adsorption techniques to clean wastewater, with focus on pollution by dyes and heavy metals. Advanced adsorbents include carbon nanomaterials, biomass, cellulose, polymers, clay, composites and chelating materials.

Download or read book Adsorption Technology written by Frank L. Slejko and published by CRC Press. This book was released on 1985-03-01 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the non-specialist involved with evaluating adsorption technology for specific applications, Adsorption Technology provides a timely, hands-on source of step-by-step fundamentals required to meet the needs of all types of adsorption situations. Presenting theoretical and practical information adaptable to granular activated carbon as well as synthetic adsorbents, this illustrated, easy-to-use guide offers convenient access to: principles of adsorption theory, isotherms, and the physical basis for mathematical models ... understanding of laboratory experiments needed to screen adsorbents for new applications ... procedures for testing and evaluating adsorbents in pilot plant studies ... methods for developing conceptual flowsheets for subsequent engineering cost estimating ... and more. With this important reference, industrial process, chemical, and environmental engineers and chemists now have a dependable single source to turn to for a solid, working understanding of applied adsorption technology. Moreover, this volume is an ideal text for graduate-level courses in chemical and environmental engineering, as well as continuing education courses and professional seminars. Book jacket.

Download or read book Adsorption Phenomenon and Thermodynamic Parameters written by Mohd Rafatullah and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the thermodynamic parameters of the adsorption of dyes specially methylene blue (MB) on different low-cost adsorbents. The comparison of enthalpy change ( H ) and entropy change ( S ) clearly divides the adsorbents into two groups, namely, inert or inorganic and natural or lignocellulosic adsorbents. The former group follows the van't Hoff equation and no compensation effect is required in the computation of enthalpy and entropy changes. On the other hand the second group requires the consideration of compensation effect which is generally overlooked by almost all of the authors. Although the calorimetry is the best solution to get the reliable values of thermodynamic parameters in almost all systems, a quick estimate is generally obtained from the equilibrium constant especially in adsorption studies. It might be acceptable in inorganic adsorbents due to low compensation temperature but it would be more erroneous in lignocellulosic adsorbents hence their contribution need be accounted for to get more reliable results."

Download or read book Biosorption for Wastewater Contaminants written by Rangabhashiyam Selvasembian and published by John Wiley & Sons. This book was released on 2021-10-25 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pollution due to various anthropogenic activities continues to increase. In terms of water pollutants, organic and inorganic pollutants are the most problematic. Although several measures have been proposed and implemented to prevent or reduce contamination, their increased concentration in water bodies has created serious concerns. Over the years, the problem has been aggravated by industrialization, urbanization and the exploitation of natural resources. The direct discharge of wastewater contaminants and their geographical mobilization have caused an increase in concentration in ground, surface, fluvial and residual waters. Extensive information about detection and disposal methods is needed in order to develop technological solutions for a ­variety of environments, both urban and rural. This book provides up-to-date information on wastewater contaminants, aimed at researchers, engineers and technologists working in this field. Conventional physicochemical techniques used to remove contaminants from wastewater include ion exchange, precipitation, degradation, coagulation, coating, membrane processes and adsorption. However, these applications have technological and economic limitations, and involve the release of large amounts of chemical reagents and by-products that are themselves difficult to remove. Biosorption - the use of organically generated material as an adsorbent – is attracting new research and scholarship. Thermally-treated calcined biomaterials may be treated to remove heavy metals from wastewater. To ensure the elimination of these contaminants, existing solutions must be integrated with intelligent biosorption functions. Biosorption for Wastewater Contaminants will find an appreciative audience among academics and postgraduates working in the fields of environmental biotechnology, environmental engineering, wastewater treatment technology and environmental chemistry.