Download or read book Adsorption Studies of Coconut Shell Activated Carbon on Aromatic Acid written by Zarina Zakaria and published by . This book was released on 1999 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Activated Carbon Production from Coconut Shell Cost Analysis Activated Carbon E12A written by Intratec and published by Intratec. This book was released on 2019-09-17 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a cost analysis of Powdered Activated Carbon production from coconut shell. In the process under analysis, Activated Carbon is produced via a chemical activation process using phosphoric acid. This report was developed based essentially on the following reference(s): (1) "Carbon, Activated", Kirk-Othmer Encyclopedia of Chemical Technology, 5th edition; (2) "Carbon, 5. Activated Carbon", Ullmann's Encyclopedia of Industrial Chemistry, 2010 Keywords: Chemical Activation Process, Phosphoric Acid, Activated Charcoal, Activated Coal, Carbo Activatus

Download or read book Coconut Shell Charcoal Adsorption to Remove Methyl Orange in Aqueous Solutions written by Miguel Manuel Manuel P√©rez Hern√°ndez and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated charcoal was prepared and characterized from residues of coconut peel (CACC) to remove by adsorption the Methyl Orange (AM) dye in aqueous solution. The charcoal was activated with phosphoric acid. The morphology and structure of the pores of the carbon obtained were analyzed by Scanning Electron Microscopy (SEM) and a surface analyzer. The adsorption data were evaluated by the BET, Langmuir and Freundlich isotherms, finding the Langmuir type I model. The surface area of the activated carbon was 526 m2/g with a pore volume of 0.234¬†cm3/g and an average pore diameter of 1.78¬†nm, according to BET, which indicates the presence of micropores. The calculated thermodynamic parameters showed that the adsorption of the AM dye in CACC is a spontaneous process at room temperature and that physisorption and chemisorption are probably involved. The adsorption tests were followed by UV,Äìvisible spectrophotometry. The effects of the adsorbate concentration (AM) and the heat treatment (450,Äì500¬∞C) with an air atmosphere were investigated, keeping constant the stirring time and the H3PO4/sample weight ratio. The results obtained indicate that the activated carbon obtained could be used as an alternative low-cost adsorbent in the removal of AM from effluents in aqueous solution.

Download or read book Activated Carbon Surface Chemistry and Adsorption from Solution written by James S. Mattson and published by . This book was released on 1971 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Materials Science and Engineering of Carbon written by Michio Inagaki and published by Butterworth-Heinemann. This book was released on 2016-06-07 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Science and Engineering of Carbon: Characterization discusses 12 characterization techniques, focusing on their application to carbon materials, including X-ray diffraction, X-ray small-angle scattering, transmission electron microscopy, Raman spectroscopy, scanning electron microscopy, image analysis, X-ray photoelectron spectroscopy, magnetoresistance, electrochemical performance, pore structure analysis, thermal analyses, and quantification of functional groups. Each contributor in the book has worked on carbon materials for many years, and their background and experience will provide guidance on the development and research of carbon materials and their further applications. - Focuses on characterization techniques for carbon materials - Authored by experts who are considered specialists in their respective techniques - Presents practical results on various carbon materials, including fault results, which will help readers understand the optimum conditions for the characterization of carbon materials

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 Activated Carbon Adsorption of Trace Organic Compounds written by Vernon L. Snoeyink and published by . This book was released on 1977 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heavy Metal Ion Adsorption by Coconut Shell Activated Carbon written by Deepak Kumar Dawar and published by Mohammed Abdul Malik. This book was released on 2024-03-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption is a process that occurs when a gas or liquid solute accumulates on the surface of a solid or a liquid (adsorbent), forming a molecular or atomic film (the adsorbate). Adsorption is operative in most natural physical, biological and chemical system and is widely used in industrial application such as activated charcoal, synthetic resins and water purification. Among these methods, adsorption is currently considered to be very suitable for waste water treatment because of its simplicity and cost effectiveness. Adsorption is commonly used technique for the removal of metal ions from various industrial effluents. It is a physicochemical process in which dissolved molecules are attached to the surface of an adsorbent by physical or chemical forces. The substance which adsorbs another substance on its surface is called as adsorbent while the substance which itself get adsorbed on the surface of another substance is called adsorbate. All adsorption performance processes are depends on solid-liquid equilibria and on mass transfer rates. If the mass transfer is in opposite direction then it is called as Desorption. Most adsorbents are highly porous materials, and adsorption takes place primarily on the walls of the pores or at the specific sites inside the particle. An adsorbent material must have a high internal volume, which is accessible to the components being removed from the solvent. Surface area and the distribution of area with respect to pore size are two very important factors in determining extent of adsorption. The overall rate of adsorption is controlled by the rate of diffusion of solute within the capillary pores of the adsorbent and varies with square root of the contact time with the adsorbent.

Download or read book Adsorption Studies of Aliphatic Organic Acids on Activated Carbon written by Sultan Alam and published by LAP Lambert Academic Publishing. This book was released on 2012-04 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood of Prunus persica was utilized for the preparation of activated carbon. The carbon was characterized by pH, moisture content, ash content, bulk density, surface area (BET), FTIR and EDS. The BET (m2/g) surface area analysis of the carbon samples activated at 800 oC showed high surface area. FTIR analysis showed that the carbon surface carried the oxygen containing functional groups, which disappeared at high activation temperatures. The EDS analysis showed high carbon contents in the sample activated at high temperature as compared to Raw and 300 oC activated samples while the contents of oxygen was found to decrease with the increase in activation temperature. The equilibrium for the aliphatic mono carboxylic acids adsorption on the carbon samples was achieved after 3 hours. Freundlich and Langmuir models were used to know the adsorption parameters. The best fit of the isotherms, found from the correlation coefficients were in the sequence: Langmuir > Freundlich.

Download or read book Fundamentals of Adsorption written by M. Douglas LeVan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Adsorption is the proceedings of the fifth International Conference on the Fundamentals of Adsorption, which was held on May 13-18, 1995 at the Asilomar Conference Center, Pacific Grove, California. This conference was organized completely under the auspices of the International Adsorption Society. It was attended by 196 participants from 24 countries. Members of the Scientific Advisory Board, together with the Conference Committee, selected papers for presentation from a large number of proposals involving an especially high level of international participation. The fundamental aspects of adsorption is a subject which has grown rapidly in recent years, drawing researchers from many disciplines including materials science, chemistry, physics, biochemistry and biotechnology, and chemical, civil, mechanical and environmental engineering. Fundamentals of Adsorption serves as an excellent reference and may be used as a primary text for a graduate level course on adsorption research or as a secondary text for a course on any of the disciplines mentioned above.

Download or read book Preparation Modification and Characterization of Activated Carbon Derived from Macadamia Nutshells and Its Adsorption Rate and Capacity for Au CN 2 Compared to Commercially Prepared Coconut Shells written by and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Activated carbons have been produced from various carbonaceous source materials including nutshells, peat, wood, coir, lignite, coal and petroleum pitch and the produced carbons have been used for adsorption of inorganic and organic compounds from numerous matrices. Activated carbons are characterized by large surface area and high degree of microporosity. The ability of activated carbon to adsorb gold from solutions, which is present in very low concentrations while loading to fairly high concentrations, has made it an attractive material for the concentration of gold from dilute solutions. Consequently, the use of activated carbons for the recovery of gold from cyanide-leached liquors has gained wide acceptance in the mining industry. However, the price of commercially prepared carbons, the time taken for them to arrive, the breakage of the carbon during transportation and the interest in utilization of various local wastes for the generation of adsorbents has led to a search of more cost effective and time friendly source for the activated carbons. The focus of this research was to conduct a study in which a comparison was conducted between untreated coconut shell derived activated carbon (CAC) and Macadamia nutshell derived activated carbon (MAC) for the adsorption of gold.

Download or read book Lignocellulosic Precursors Used in the Synthesis of Activated Carbon written by Virginia Hernández Montoya and published by BoD – Books on Demand. This book was released on 2012-02-29 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book discusses the principal lignocellulosic precursors used in the elaboration of activated carbons in different countries such as Asia, America, Europe and Africa; the different methods and experimental conditions employed in the synthesis of activated carbons, including one analysis of the principal stages of the preparation such as carbonization and activation (i.e., chemical or physical activation). Also, the recent and more specialized techniques used in the characterization of activated carbons are discussed in this book. For example, the techniques employed to determine textural parameters (mercury porosimetry and gas adsorption isotherms at 77 K) and different spectroscopies to determine chemical functionality (Raman, FT-IR, etc.) and other X-Ray techniques. Additionally, an overview of the application of activated carbons obtained from lignocellulosic precursors for wastewater treatment. Specifically, the analysis and discussion are focused on the advantages and capabilities of activated carbons for the removal of relevant toxic compounds and pollutants from water such as heavy metals, dyes, phenol, etc. Finally, the use of pyrolysis method for the valorization of two Mexican typical agricultural wastes (orange peel and pecan nut shell) for energy and carbon production is considered in this book.

Download or read book Preparation Characterization and Adsorption Studies of Activated Carbon Fiber from Coconut Husk written by Hatem Ahmad Naji Al-Aoh and published by . This book was released on 2013 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reaction of Activated Carbon with Aqueous Chlorine and Chlorine Dioxide written by and published by . This book was released on 1983 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation and Surface Modification of Activated Carbon from Coconut Shells for Benzene and Toluene Adsorption from Water written by Mohammed Jibril and published by . This book was released on 2015 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adsorption of Organic and Emerging Pollutants on Carbon Materials in Aqueous Media Environmental Implications written by Jordi Lladó Valero and published by . This book was released on 2016 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last two decades an increasing presence of organic substances such drugs, pesticides, etc. has been detected in water which may affect the health of the organisms and the environment. Some of these contaminants remain in the water after the usual treatment in sewage plants. This fact makes evident the need of introduction of the tertiary treatments that allow the complete elimination of these substances. This Doctoral Thesis researches for the elimination of different organic and emerging compounds present in water by means of the adsorption with new activated carbons. In particular, new carbon materials from different wastes, coal, synthetic materials, which have been produced and characterized, allow the adsorption of the organic compounds widely used in society. Different characteristics of the adsorbents (chemical composition, functional groups, texture, etc.) and of adsorbates (dimensions, hydrophobicity, pKa, functional groups, etc.) that influence on the adsorption process have been studied. Moreover, in this work, an analysis and kinetic model have been proposed. The analytic model allow, by chemometrics, enhancing the quantification of two or more organic compounds in solution by spectroscopy UV-vis. The kinetic model proposed provides a better comprehension and interpretation, as a better prediction of the different parameters on the adsorption process. In this sense, the following Thesis presents five works which have allowed a better comprehension of the adsorption process by means carbon materials from different origin. The first work, "highly microporous activated carbons from biocollagenic wastes as adsorbents or aromatic pollutants in water originating from industrial activities", about the texture and chemical composition of activated carbon from biocollagenic wastes which have been studied in order to observe how these parameters affect on the adsorption of aromatic monosubstitued compounds. Moreover, different variables as temperature and activating agent are studied in the process of manufacture activated carbons. The second work, "Removal of pharmaceutical and Iodinated Contrast Media (ICM) compounds on carbon xerogels and activated carbons. NOM and textural properties influences", shows the important role of pore size distribution in activated carbon which plays on the adsorption of different pharmaceuticals (salicylic acid, paracetamol, diclifenac, etc.) and iodinated contrast media (iohexol, iodixanol, iomeprol, etc) of different size. The influence of natural organic matter (NOM) in water is also studied in the adsorption of the all pollutants. The adsorption of paracetamol, phenol and salicylicacid in different coal-based activated carbon is showed in the contain of the work "Removal of pharmaceutical pollutants in water using coal-based activated carbons". In this work, the chemical characteristics on the surface of activated carbons are studied in order to observe the influence in the adsorption of different organic compounds; and also the influence of the pH water. The results showed an increase of adsorption of salicylates due to the presence of sulphur on the surface of the adsorbent. The fourth work; "Multicomponent adsorption on coal-based activated carbons on aqueous media: new cross-correlation analysis method", as a continuation of the previous work, shows a new chemometric technique that allows to analysis the binary and ternary solutions correctly by UV-vis spectroscopy. Moreover, the competitive effect between two or three molecules is studied on the adsorption process. In the last work, "Role of activated carbon properties in atrazine and paracetamol adsorption equilibrium and kinetics", a new kinetic model is proposed for the adsorption of paracetamol and atrazine using activated carbon from sewage sludge and two, commercial, activated carbons.

Download or read book The Application of Coconut Shell Activated Carbon for Water Treatment written by Yusri Sulaiman and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: