Preparation of tamarind fruit seed activated carbon by microwave heating for the adsorptive treatment of landfill leachate: A laboratory column evaluation

[Display omitted] ► Highlight the renewable use of tamarind fruit seed. ► Explore the efficient use of microwave irradiation. ► To examine the physical and chemical characteristics of the adsorbent. ► To evaluate the potential for the adsorptive treatment of landfill leachate. ► Outline the dynamic...

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Bibliographic Details
Published in:Bioresource technology 2013-04, Vol.133, p.599-605
Main Authors: Foo, K.Y., Lee, L.K., Hameed, B.H.
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Adsorptivity
Ammonical nitrogen
Biodegradation, Environmental
Biological and medical sciences
Biological Oxygen Demand Analysis
Charcoal - chemistry
Chemical oxygen demand
Crack opening displacement
Fluid flow
Fruit - chemistry
Fundamental and applied biological sciences. Psychology
Hydraulics
Laboratories
Landfill leachate
Landfills
Mathematical models
Microwave
Microwaves
Models, Theoretical
Nitrogen - isolation & purification
Porosity
Seeds
Seeds - chemistry
Tamarind fruit seed
Tamarindus - chemistry
Tamarindus indica
Water Pollutants, Chemical - isolation & purification
Water Purification - methods
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Summary:[Display omitted] ► Highlight the renewable use of tamarind fruit seed. ► Explore the efficient use of microwave irradiation. ► To examine the physical and chemical characteristics of the adsorbent. ► To evaluate the potential for the adsorptive treatment of landfill leachate. ► Outline the dynamic adsorption models. The preparation of tamarind fruit seed granular activated carbon (TSAC) by microwave induced chemical activation for the adsorptive treatment of semi-aerobic landfill leachate has been attempted. The chemical and physical properties of TSAC were examined. A series of column tests were performed to determine the breakthrough characteristics, by varying the operational parameters, hydraulic loading rate (5–20mL/min) and adsorbent bed height (15–21cm). Ammonical nitrogen and chemical oxygen demand (COD), which provide a prerequisite insight into the prediction of leachate quality was quantified. Results illustrated an encouraging performance for the adsorptive removal of ammonical nitrogen and COD, with the highest bed capacity of 84.69 and 55.09mg/g respectively, at the hydraulic loading rate of 5mL/min and adsorbent bed height of 21cm. The dynamic adsorption behavior was satisfactory described by the Thomas and Yoon–Nelson models. The findings demonstrated the applicability of TSAC for the adsorptive treatment of landfill leachate.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2013.01.097