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231222s2003 xx ||||| 00| ||eng c |
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|e rakwb
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|a eng
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1 |
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|a Blais, J F
|e verfasserin
|4 aut
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|a Comparison of natural adsorbents for metal removal from acidic effluent
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|c 2003
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 10.06.2003
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|a Date Revised 19.11.2015
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|a published: Print
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|a Citation Status MEDLINE
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|a Adsorption tests were carried out in acidic synthetic solutions (pH 2.0) using 20 g l(-1) of various natural adsorbents and 0.25 mM of 11 different metals. In decreasing order, the most efficient adsorbents tested were: oyster shells, cedar bark, vermiculite, cocoa shells and peanut shells. In contrast, weak metal adsorption was demonstrated by: red cedar wood, peat moss, pine wood, corn cobs and perlite. Metal adsorption capacities in acidic synthetic solution followed the order: Pb2+> Cr3+> Cu2+> Fe2+> Al3+> Ni2+> Cd2+ > Mn2+ > Zn2+ >> Ca2+, Mg2+. Alkaline treatment (0.75 M NaOH) increased the effectiveness of metal removal for the majority of adsorbents. In contrast, acid treatment (0.75 M H2SO4) either reduced or did not affect the adsorption capacity of the materials tested. Finally, oyster shells, red cedar wood, vermiculite, cocoa shells and peanut shells, were effective natural adsorbents for the selective recovery of lead and trivalent chromium from acidic effluent
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|a Comparative Study
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|a Journal Article
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|a Aluminum Silicates
|2 NLM
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|a Metals
|2 NLM
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|a vermiculite
|2 NLM
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|a 1318-00-9
|2 NLM
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1 |
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|a Shen, S
|e verfasserin
|4 aut
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1 |
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|a Meunier, N
|e verfasserin
|4 aut
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| 700 |
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|a Tyagi, R D
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1998
|g 24(2003), 2 vom: 05. Feb., Seite 205-15
|w (DE-627)NLM098202545
|x 0959-3330
|7 nnns
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| 773 |
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|g volume:24
|g year:2003
|g number:2
|g day:05
|g month:02
|g pages:205-15
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