Document Detail


Removal of lead, cadmium, zinc, and copper from industrial wastewater by carbon developed from walnut, hazelnut, almond, pistachio shell, and apricot stone.
MedLine Citation:
PMID:  17548149     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In this work, adsorption of copper (Cu), zinc (Zn), lead (Pb), and cadmium (Cd) that exist in industrial wastewater onto the carbon produced from nutshells of walnut, hazelnut, pistachio, almond, and apricot stone has been investigated. All the agricultural shell or stone used were ground, sieved to a defined size range, and carbonized in an oven. Time and temperature of heating were optimized at 15 min and 800 degrees C, respectively, to reach maximum removal efficiency. Removal efficiency was optimized regarding to the initial pH, flow rate, and dose of adsorbent. The maximum removal occurred at pH 6-10, flow rate of 3 mL/min, and 0.1g of the adsorbent. Capacity of carbon sources for removing cations will be considerably decreased in the following times of passing through them. Results showed that the cations studied significantly can be removed by the carbon sources. Efficiency of carbon to remove the cations from real wastewater produced by copper industries was also studied. Finding showed that not only these cations can be removed considerably by the carbon sources noted above, but also removing efficiency are much more in the real samples. These results were in adoption to those obtained by standard mixture synthetic wastewater.
Authors:
Maryam Kazemipour; Mehdi Ansari; Shabnam Tajrobehkar; Majdeh Majdzadeh; Hamed Reihani Kermani
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Publication Detail:
Type:  Journal Article     Date:  2007-05-03
Journal Detail:
Title:  Journal of hazardous materials     Volume:  150     ISSN:  0304-3894     ISO Abbreviation:  J. Hazard. Mater.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-14     Completed Date:  2008-05-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9422688     Medline TA:  J Hazard Mater     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  322-7     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Faculty of Sciences, Islamic Azad University, Kerman Branch, Kerman, Iran.
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MeSH Terms
Descriptor/Qualifier:
Adsorption
Cadmium / isolation & purification*
Carbon / chemistry*
Copper / isolation & purification*
Corylus
Filtration
Hydrogen-Ion Concentration
Industrial Waste
Juglans
Lead / isolation & purification*
Pistacia
Prunus
Water Pollutants / isolation & purification*
Water Purification / methods*
Zinc / isolation & purification*
Chemical
Reg. No./Substance:
0/Industrial Waste; 0/Water Pollutants; 7439-92-1/Lead; 7440-43-9/Cadmium; 7440-44-0/Carbon; 7440-50-8/Copper; 7440-66-6/Zinc

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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