Preparation and Characterization of Sludge-derived Activated Carbon by Zinc Chloride Activation PDF Download

Author: Hazwan Hafiz Abdul Halim
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Prabakaran Subramaniam
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: Majeti Narasimha Vara Prasad
Publisher: Butterworth-Heinemann
ISBN: 0128159081
Category : Technology & Engineering
Languages : en
Pages : 856

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Industrial and Municipal Sludge: Emerging Concerns and Scope for Resource Recovery begins with a characterization of the types of sludge and their sources and management strategies. This section is followed by specific chapters that cover Emerging contaminants in sludge (Endocrine disruptors, Pesticides and Pharmaceutical residues, including illicit drugs/controlled substances), Bioleaching of sludge [with an enriched sulfur-oxidizing bacterial community, Recovery of valuable metals (Bioleaching and use of sulfur-oxidizing bacterial community, and Biogas production by continuous thermal hydrolysis and thermophilic anaerobic digestion of waste activated sludge. In addition, the book includes numerous tables and flow diagrams to help users further comprehend the subject matter. Includes numerous tables and flow diagrams to assist in the comprehension of new and existing sludge treatments and resource recovery technology Covers biogas production by continuous thermal hydrolysis and thermophilic anaerobic digestion of waste activated sludge Presents information on the recovery of valuable metals from sludge (bioleaching and the use of a sulfur-oxidizing bacterial community) Includes opportunities and challenges in the biorefinery-based valorization of pulp and paper sludge

Author: Bouaik Hassan
Publisher:
ISBN:
Category :
Languages : en
Pages : 22

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This article discusses the preparation and characterization of activated carbon by the combined method (combination of two methods of chemical activation by ZnCl 2 and physical CO 2 ) leads to essentially microporous coals with specific BET specific surfaces which can exceed 800 m 2 /g. It is generally obtained by the BET method which is based on the adsorption capacity (in vapor phase) of nitrogen at 77 K and the steric hindrance of the N2 molecule. Microporous activated carbon prepared from Moroccan red macroalgae can be used as excellent carriers for adsorbing small molecules like heavy metals and other organic molecules like pesticides. This work was devoted to the characterization of active carbon prepared from red macroalgae with H 3 PO 4 , ZnCl 2 , CO 2 , H 3 PO 4 / CO 2 , ZnCl 2 / by TFIR, BET and SEM.

Author: Sidney John Gregg
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 328

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The principal aim of the second edition of this book remains the same as that of the first edition: to give a critical exposition of the use of the adsorption methods for the assessment of the surface and pore size distribution of finely divided and porous solids.

Author: Michael King Stevenson
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 218

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Author: Liza Ramli
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Virginia Hernández Montoya
Publisher: BoD – Books on Demand
ISBN: 9535101978
Category : Science
Languages : en
Pages : 104

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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.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 8

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A novel, cost-effective, and environmentally benign process was developed to produce highly efficient carbon-based adsorbents (CBAs) from paper mill sludge. The production process required chemical activation of sludge using zinc chloride and pyrolysis at 750 C in N2 gas. The produced CBAs were characterized according to their surface area and pore size distribution using N2-BET adsorption isotherm data. Further characterization of the surface and pore structure was conducted using a unified exponential/power law approach applied to small angle neutron scattering (SANS) data. The structural features analyzed by SANS revealed the dependence of porosity with zinc chloride concentration. The presence of inaccessible pores was also determined by contrast-match experiments.

Author: Hitendra B. Jain
Publisher:
ISBN:
Category :
Languages : en
Pages : 188

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