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Book A Comparative Study of Tailored Activated Carbon from Waste Tires Against Commercial Activated Carbon F400 for the Removal of Methylene Blue

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.

Book Competitive Adsorption of Dyes congo Red Methylene Blue Malachite Green on Activated Carbon

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.

Book Activated Carbons from Waste Tyre Pyrolysis

Download or read book Activated Carbons from Waste Tyre Pyrolysis written by Mzukisi Matandabuzo and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development of better and efficient methods of consuming less and/or wasting little resource materials is becoming more important. In this study, pyrolytic waste tyre carbon black residue and commercial grade activated carbon were characterized and evaluated against adsorption of mercury vapor. The performance of the raw carbon black residue and the activated carbon against mercury vapor generated in the laboratory was determined using a designed reactor system. The adsorption of Hg+ was investigated at temperatures ranging from 200 to 280¬∞C for 6¬†hours. Batch experiments were conducted for the different carbon residue samples and characterization analysis were done before and after adsorption using the spectroscopic, microscopic, and structural techniques to elucidate the structural arrangements and properties of the carbonaceous materials. Spectroscopic analysis of these carbonaceous residues showed a C=C stretching vibration attributed to the lignocellulose aromatic ring at 1657,Äì2000¬†cm,àí1. Comparatively, it was also observed that the Infrared spectrum of raw carbon black exhibits less functional groups as compared to the H2SO4-AC and H2O2-AC carbonaceous residues prepared.

Book A Comparison of Synthetic Adsorbents and Activated Carbon in the Removal of Methyl tertiary butyl Ether from Gasoline Contaminated Groundwater

Download or read book A Comparison of Synthetic Adsorbents and Activated Carbon in the Removal of Methyl tertiary butyl Ether from Gasoline Contaminated Groundwater written by Locandro, Jr. (Ronald R.) and published by . This book was released on 1993 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Factors Influencing Textile Dye Absorption of Dylon Blue Dye on Activated Carbon

Download or read book Factors Influencing Textile Dye Absorption of Dylon Blue Dye on Activated Carbon written by Rawan A. Alharbi and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research is dedicated to studies of activated carbons performance in the wastewater process of dye removal. The experiment was performed to assess the efficiency of the commercial activated carbons (Fl00, F600, F820, SGL 8x30, CAL, AP4-60, OLC12x30) in adsorption process for Dylon Blue Dye. The effect of type of activated carbon, dye, salinity, pH and contact time, were studied. Minitab software was used to design an experiment to collectively evaluate these factors. The experiments were performed by measuring the absorbances of the solutions before and after contact with the activated carbon. The absorbance was evaluated with UV-Vis spectrophotometer. The adsorption of the dye took place on all the studied activated carbon samples, thus the dye concentration reduced comparing to the initial solutions. Results of the study indicated that pH and salinity did not have any significant effect of the adsorption of the dye on the carbon. However, type of carbon and contact time were shown to influence adsorption significantly. Lack of effect of pH and salinity in current study contrasts finding reported in other studies --

Book Carbon Based Material for Environmental Protection and Remediation

Download or read book Carbon Based Material for Environmental Protection and Remediation written by Mattia Bartoli and published by BoD – Books on Demand. This book was released on 2020-08-19 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Comparative Adsorption Study Of Methylene Blue On Low Cost Adsorbent

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.

Book Activated Carbon Adsorption

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

Book Activated Carbon from Pineapple Waste Biomass for the Removal of Methylene Blue

Download or read book Activated Carbon from Pineapple Waste Biomass for the Removal of Methylene Blue written by Mohammed Nabil Mahamad and published by . This book was released on 2015 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Process Design Manual for Carbon Adsorption

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:

Book Production of Activated Carbon from Used Tires by Superheated Steam and Carvon Dioxide Activation in a Fixed Bed Reactor

Download or read book Production of Activated Carbon from Used Tires by Superheated Steam and Carvon Dioxide Activation in a Fixed Bed Reactor written by Thanapon Lortong and published by . This book was released on 1998 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research was the study of the production of activated carbon from used tires by the processes of carbonization and activation with superheated steam and carbon dioxide in a fixed bed reactor with the diameter of 100 mm. The used tires were carbonized at 350 C for 60 min with the air flow rate of 0.52 nl/min. The characteristics of the resulted chars were yield of 41.40%, fixed carbon of 62.57%, ash of 15.30% and volatile matter of 22.13%. Then, the chars were activated with superheated steam and carbon dioxide. The optimum condition for activation was 0.60-1.18 mm of the chars size at 900 C for 45 min with air at a flow rate of 0.27 nl/min, carbon dioxide at a flow rate of 2.0 nl/min and superheated steam. The resulted activated carbon obtained yield of 27.99%, bulk density of 0.3590 g/cm3, ash of 21.05%, iodine number of 598.79 mg/g, methylene blue number of 247.08 mg/g, B.E.T. surface area of 658.75 m2/g, micropore area of 424.27 m2/g, external area of 234.48 m2/g and average pore diameter of 22.24 A.

Book An Analysis of Effective Factors Impacting Absorption of Procion 072 Medium Blue Dye on Activated Carbon

Download or read book An Analysis of Effective Factors Impacting Absorption of Procion 072 Medium Blue Dye on Activated Carbon written by Ammar A. Alobaidi and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present study deals with the adsorption of textile dye from aqueous solution on commercial activated carbon. The adsorption of Procion 072 Medium Blue dye on carbon was assessed by measuring absorbance using a UV-Vis spectrophotometer. The main goal of this research was to understand the nature of the interaction between adsorbed molecules of the dye by activated carbon under various conditions of pH, Salinity, time and types of Carbon. Results of this research showed good correlation with the Langmuir isotherm model. Factors that could affect the adsorption were assessed. Significant influence on adsorption was found in contact time, type of carbon and type of dyes. Salinity of water and pH on other hand showed negligible influence on adsorption of the dye. Minitab 16® Software was applied to design the experiments and to identify the significance of each factor. Furthermore, it was generated the randomized run orders for the experiments. A factorial experiments has five factors, three factors Carbon type, Dye type and pH with 3 levels, and two factors time and salinity with 2 levels, also it has 216 experimental conditions. Present research showed activated carbon is suitable natural adsorbents for removing dyes from wastewaters in textile industry.