Download or read book Experimental Study of Methylene Blue Adsorption on Granular Activated Carbon written by Shuying Xu and published by . This book was released on 2014 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is hard to remove dye pollutants from wastewater. Adsorption is one of the effective methodologies for dye pollutants removal. The big challenge for adsorption is the determination of the equilibrium point. The equilibrium point may be misidentified when the change in concentration is in the acceptable experimental error range and/or when fitted isotherm parameters do not change over time. This study provides an estimation method based on integrated adsorption kinetics and isotherms to predict the aqueous adsorbate concentration at equilibrium and give a sense of the approach to equilibrium. In addition, the method provides information on how plots of absorbed concentration versus aqueous concentration change over time. To accomplish this, a synthetic model test was initiated in the laboratory using methylene blue as the adsorbate and granular activated carbon as the adsorbent. Two kinetic models (pseudo-first order and pseudo-second order) and three isotherms (linear, Langmuir, and Freundlich) were employed, yielding six integrated models. The pseudo-second order kinetic model with either Langmuir or Freundlich isotherm provides a good estimation of the aqueous adsorbate concentration at equilibrium. While the data collected were not well by any isotherm model, the pseudo-second order kinetic model with the Freundlich isotherm reasonably fit plots of absorbed concentration versus aqueous concentration over time.
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 of Methylene Blue Using Activated Carbon from Mixed of Palm Oil Press Fibres and Empty Fruit Bunch written by Amir Rahimie Ridzuan and published by . This book was released on 2012 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, palm oil industry wastes such as palm oil empty fruit bunch and palm oil press fibre have been sold as source of energy renewable in Malaysia. In the combustion process of palm oil empty fruit bunch and palm oil press fibre will produce carbon. This carbon can be activated to use in waste water treatment and chemical absorber. Methylene blue was use as adsorbate with different concentration. The activated carbons have been produce using chemical activation using potassium hydroxide. It has been carbonize at 250oC for 24 hour with nitrogen flow and the activation process also as carbonize process with temperature 300oC. The equilibrium study using UV-Visible Spectrophotometer is to make calibration curve and to determine the final concentration of the methylene blue solution. From the experiment, the adsorption graph show the 50% additional percentage weight of empty fruit bunch into palm oil press fibres give the high adsorption percentage and from the lagmuir isotherm it also give the high value R2 and it maximum adsorption capacity is 111.111 mg/g. The characterization of the activated carbon produce have been determine using Fourier Transform Infrared Spectroscopy (FTIR), it presence of -OH (hydroxyl), C-H (alkanes and alkyls), C=O (Ketone or Asidcarbosilik), and C-O-C (esters, eter or phenol).From this research, that can conclude the activated carbon is successfully produce and the characterization of the activated carbon also determine using FTIR. The optima condition is at 50% additional percentage weight of empty fruit bunch into palm oil press fibre.
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 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 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 Process Design Manual for Carbon Adsorption written by Cornell, Howland, Hayes, and Merryfield and published by . This book was released on 1973 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Treatment of Water by Granular Activated Carbon written by Michael J. McGuire and published by . This book was released on 1983 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physical Chemistry written by Peter Atkins and published by W. H. Freeman. This book was released on 2014-01-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edition after edition, Atkins and de Paula's #1 bestseller remains the most contemporary, most effective full-length textbook for courses covering thermodynamics in the first semester and quantum mechanics in the second semester. Its molecular view of physical chemistry, contemporary applications, student friendly pedagogy, and strong problem-solving emphasis make it particularly well-suited for pre-meds, engineers, physics, and chemistry students. Now organized into briefer, more manageable topics, and featuring additional applications and mathematical guidance, the new edition helps students learn more effectively, while allowing instructors to teach the way they want. Available in Split Volumes For maximum flexibility in your physical chemistry course, this text is now offered as a traditional text or in two volumes: Volume 1: Thermodynamics and Kinetics: 1-4641-2451-5 Volume 2: Quantum Chemistry: 1-4641-2452-3
Download or read book Activated Carbon for Water and Wastewater Treatment written by Ferhan Cecen and published by John Wiley & Sons. This book was released on 2011-09-19 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph provides comprehensive coverage of technologies which integrate adsorption and biological processes in water and wastewater treatment. The authors provide both an introduction to the topic as well as a detailed discussion of theoretical and practical considerations. After a review of the basics involved in the chemistry, biology and technology of integrated adsorption and biological removal, they discuss the setup of pilot- and full-scale treatment facilities, covering powdered as well as granular activated carbon. They elucidate the factors that influence the successful operation of integrated systems. Their discussion on integrated systems expands from the effects of environmental to the removal of various pollutants, to regeneration of activated carbon, and to the analysis of such systems in mathematical terms. The authors conclude with a look at future needs for research and develoment. A truly valuable resource for environmental engineers, environmental and water chemists, as well as professionals working in water and wastewater treatment.
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 Removal of Emerging Micropollutants from Wastewater by Activated Carbon Adsorption Experimental Study of Different Activated Carbons and Factors Influencing the Adsorption of Micropollutants in Wastewater written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 on activated carbon in countercurrent flow written by Rolf Johansson and published by . This book was released on 1980 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental and Modeling Studies on Metal Ion Adsorption Onto Granular Activated Carbon written by Minsheng Lin and published by . This book was released on 2000 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Exchange in Analytical Chemistry written by William Rieman and published by Elsevier. This book was released on 2013-10-22 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
