The Effects of Surface Chemistry and PH on the Aqueous Phase Adsorption of Aniline on Activated Carbon PDF Download
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Author: Kevin W. Jay
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Kevin W. Jay
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: James S. Mattson
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 256
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Book Description
Author: Robert W. Coughlin
Publisher:
ISBN:
Category : Adsorption
Languages : en
Pages : 44
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Book Description
Author: Jayant K Singh
Publisher: CRC Press
ISBN: 1351272500
Category : Science
Languages : en
Pages : 332
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Book Description
This book covers theoretical aspects of adsorption, followed by an introduction to molecular simulations and other numerical techniques that have become extremely useful as an engineering tool in recent times to understand the interplay of different mechanistic steps of adsorption. Further, the book provides brief experimental methodologies to use, test, and evaluate different types of adsorbents for water pollutants. Through different chapters contributed by accomplished researchers working in the broad area of adsorption, this book provides the necessary fundamental background required for an academician, industrial scientist or engineer to initiate studies in this area. Key Features Explores fundamentals of adsorption-based separation Provides physical insight into aqueous phase adsorption Includes theory, molecular and mesoscopic level simulation techniques and experiments Describes molecular simulations and lattice-Boltzmann method based models for aqueous phase adsorption Presents state-of-art experimental works particularly addressing removal of "emerging pollutants" from aqueous phase
Author: Detlef R. U. Knappe
Publisher: IWA Publishing
ISBN: 1843398419
Category : Science
Languages : en
Pages : 100
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Book Description
Many water treatment plants need to remove objectionable trace organic compounds, and activated carbon adsorption is often the best available technology. Utilities face the challenge of having to choose from a large variety of activated carbons, and iodine number or BET surface area values are often utilized in the selection process. Although neither parameter correlates well with adsorption capacities, alternative activated carbon selection criteria based on fundamental adsorbent and adsorbate properties are lacking to date. The first objective of this research was to systematically evaluate the effects of activated carbon pore structure and surface chemistry on the adsorption of two common drinking water contaminants: the relatively polar fuel oxygenate methyl tertiary-butyl ether (MTBE) and the relatively nonpolar solvent trichloroethene (TCE). The second objective was to develop simple descriptors of activated carbon characteristics that facilitate the selection of suitable adsorbents for the removal of organic contaminants from drinking water.Originally published by AwwaRF for its subscribers in 2003 This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Author: Lei Li
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
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Book Description
Keywords: trace organic contaminants, pore structure, surface chemistry, adsorbent.
Author: Zaheer Shaikh
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659127151
Category :
Languages : en
Pages : 136
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Book Description
The important factors involved in the adsorption of aromatic compounds from aqueous solution by activated carbon, surface chemistry and porosity, were examined in this thesis. This was achieved by systematically investigating the adsorption of benzene, aniline, toluene, nitrobenzene and fluorobenzene by a granular activated carbon and various virgin and surface modified activated carbon fibers. The adsorption of water molecules (water vapor isotherms), the synthetic organic compound (SOC) itself (SOC vapor isotherms), and the SOC in water (i.e. SOC aqueous phase isotherms) on activated carbons were studied side by side.
Author: Ljubisa R. Radovic
Publisher: CRC Press
ISBN: 1482270129
Category : Science
Languages : en
Pages : 438
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Book Description
"Provides an overview of scientific and technological issues in environmental applications of carbon materials. Emphasizes the versatility of carbon materials in both gas- and liquid-phase environmental applications, including a discussion of emerging technologies. Highlights the power and potential opportunities afforded by NMR spectroscopy for un
Author: Eduardo J. Bottani
Publisher: Elsevier
ISBN: 0080559425
Category : Technology & Engineering
Languages : en
Pages : 773
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Book Description
Adsorption by Carbons covers the most significant aspects of adsorption by carbons, attempting to fill the existing gap between the fields of adsorption and carbonaceous materials. Both basic and applied aspects are presented. The first section of the book introduces physical adsorption and carbonaceous materials, and is followed by a section concerning the fundamentals of adsorption by carbons. This leads to development of a series of theoretical concepts that serve as an introduction to the following section in which adsorption is mainly envisaged as a tool to characterize the porous texture and surface chemistry of carbons. Particular attention is paid to some novel nanocarbons, and the electrochemistry of adsorption by carbons is also addressed. Finally, several important technological applications of gas and liquid adsorption by carbons in areas such as environmental protection and energy storage constitute the last section of the book. The first book to address the interplay between carbonaceous materials and adsorption Includes important environmental applications, such as the removal of volatile organic compounds from polluted atmospheres Covers both gas-solid and liquid-solid adsorption
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The principal objectives of this research were (1) to identify activated pore structure and surface chemistry characteristics that assure the effective removal of trace organic contaminants from aqueous solution, and (2) to develop a procedure to predict the adsorption capacity of activated carbons from fundamental adsorbent and adsorbate properties. To systematically evaluate pore structure and surface chemistry effects on the adsorption of organic micropollutants from aqueous solution, a matrix of activated carbon fibers (ACFs) with three activation levels and four surface chemistry levels was prepared and characterized. In addition, three commercially available granular activated carbons (GACs) were studied to verify whether correlations developed for the ACF matrix are valid for adsorbents that are typically used for water treatment. BET surface area, pore size distribution, elemental composition, point of zero charge and infrared spectroscopy data were obtained to characterize the adsorbents. The results showed that the ACF matrix prepared in this study permits a fairly independent evaluation of surface chemistry and pore structure effects on organic contaminant adsorption from aqueous solution. Methyl tertiary-butyl ether (MTBE), a relatively hydrophilic adsorbate, and trichloroethene (TCE), a relatively hydrophobic adsorbate, served as adsorbate probes. To evaluate the effects of natural organic matter (NOM) on MTBE and TCE adsorption capacities, isotherm experiments were conducted in ultrapure water and Sacramento-San Joaquin Delta water. With respect to surface chemistry, both single-solute isotherms and isotherms in the presence of NOM indicated that hydrophobic adsorbents more effectively removed TCE and MTBE from aqueous solution than hydrophilic adsorbents. Enhanced water adsorption on polar surface sites explained the poorer performance of the hydrophilic adsorbents. Based on the elemental composition of the low-ash carbons evaluated in this study, act.
