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Primary sewage sludge-derived activated carbon: characterisation and application in wastewater treatment

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Field Value
 
Title Primary sewage sludge-derived activated carbon: characterisation and application in wastewater treatment
 
Creator GUPTA, A
GARG, A
 
Subject SURFACE-CHEMISTRY
ADSORPTION
ADSORBENTS
REMOVAL
PHENOL
THERMODYNAMICS
NITROPHENOL
DYE
Sewage sludge-derived adsorbents
Phenol adsorption
Adsorption kinetics
Equilibrium isotherm
Adsorption thermodynamics
Adsorbent regeneration
 
Description The present study deals with the characterization of primary sewage sludge-derived activated carbons which were used for phenol adsorption from the synthetic wastewater. The waste-derived adsorbents were prepared by a two-step process: chemical activation (with ZnCl2 and KOH) followed by pyrolysis. The mesoporous adsorbents were found to have BET surface area comparable to commercial activated carbon (surface area = 495-515 m(2)/g). The adsorption runs were performed in orbital shaker with synthetic phenolic wastewater (phenol concentration = 50-250 mg/L) to investigate the effect of various reaction parameters. The equilibrium phenol adsorption data could be described by Redlich-Peterson isotherm model and the pseudo first-order kinetic model exhibited the best fit to time-based adsorption data. The phenol adsorption was endothermic for all adsorbents. The performance of the thermally regenerated waste-derived adsorbents in the wastewater treatment was found to reduce significantly.
 
Publisher SPRINGER
 
Date 2016-01-14T11:06:19Z
2016-01-14T11:06:19Z
2015
 
Type Article
 
Identifier CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY, 17(6)1619-1631
1618-954X
1618-9558
http://dx.doi.org/10.1007/s10098-014-0895-4
http://dspace.library.iitb.ac.in/jspui/handle/100/17433
 
Language en