Nova Publishers
My Account Nova Publishers Shopping Cart
HomeBooksSeriesJournalsReference CollectionseBooksInformationSalesImprintsFor Authors
  Top » Catalog » Books » Chemistry including Chemical Engineering » Activated Carbon: Classifications, Properties and Applications » My Account  |  Cart Contents  |  Checkout   
Quick Find
Use keywords to find the product you are looking for.
Advanced Search
What's New? more
Central Asia: Perspectives and Present Challenges
Shopping Cart more
0 items
Shipping & Returns
Privacy Notice
Conditions of Use
Contact Us
01.Activated Carbons as Catalyst Supports (pp.169-204)
02.Combination of Ozone and Activated Carbon for Water and Wastewater Treatment (pp.433-474)
Notifications more
NotificationsNotify me of updates to Conventional and Non-Conventional Thermal Processing for the Production of Activated Carbons from Agro-Industrial Wastes (pp.205-238)
Tell A Friend
Tell someone you know about this product.
Conventional and Non-Conventional Thermal Processing for the Production of Activated Carbons from Agro-Industrial Wastes (pp.205-238) $100.00
Authors:  (Leandro S. Oliveira, Adriana S. Franca, Departamento de Engenharia Mecānica/UFMG, Belo Horizonte, MG, Brazil)
Adsorption is currently the most prospective technology being used for the removal
of organic and inorganic pollutants from waters and wastewaters. Although there are
many adsorbents in use, activated carbon is the most widely used adsorbent for the
removal of a variety of contaminants from waters. However, there is a major
disadvantage associated with it, which is the strict necessity to regenerate the activated
carbon, due to its inherent high cost, to allow for further use, thus, imparting additional
costs to the adsorption process. Another negative aspect is the loss of adsorption capacity
during the regeneration process which restricts its application even further. Although
synthetic resins present a longer working life than activated carbons as adsorbents, their
use is still costly for they also require regeneration after use. These aspects have greatly
stimulated research interests into the production of alternative low-cost adsorbents to
replace the costly activated carbons and synthetic resins. Attention has been focused on
preparation and use of low-cost adsorbents, which present adequate adsorption capacities
and are able to remove unwanted pollutants from contaminated waters without the need
for regeneration and, thus, doing so at a low-cost. Industrial wastes and agricultural
byproducts are classes of materials that are being considered the most promising
precursors for the production of low-cost adsorbents for they are renewable, locally
available in large quantities, inexpensive and require little processing to turn them into
activated carbons and increase their adsorption capacities toward a specific adsorbate
(pollutant). The majority of potential precursor materials being studied is of biological
origin and, thus, fit into the categories of carbonaceous or lignocellulosic materials. As
such, these materials contain a variety of chemical functional groups at their surfaces
(e.g., carboxylic, phenolic, amino and others) and upon thermal and chemical treatment
these groups can be manipulated, transforming the material into a more functionally
selective activated carbon. These surface modifications will contribute to a variety of
adsorption mechanisms, such as chemisorption, complexation, ion exchange and others,
depending on the possible spectrum of interactions between adsorbent and adsorbate.
Thus, the objective of this essay is to present a critical overview on conventional and
non-conventional thermal and chemical treatments that are being employed in the
preparation of activated carbons using residues of biological origin as precursors,
discussing their effects on both physical and chemical characteristics of the produced
adsorbents and on the performance of the prepared activated carbon for the removal of
wastewater pollutants. 

Available Options:
Special Focus Titles
01.Violent Communication and Bullying in Early Childhood Education
02.Cultural Considerations in Intervention with Women and Children Exposed to Intimate Partner Violence
03.Chronic Disease and Disability: The Pediatric Lung
04.Fruit and Vegetable Consumption and Health: New Research
05.Fire and the Sword: Understanding the Impact and Challenge of Organized Islamism. Volume 2

Nova Science Publishers
© Copyright 2004 - 2020

Conventional and Non-Conventional Thermal Processing for the Production of Activated Carbons from Agro-Industrial Wastes (pp.205-238)