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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X10362243
|2 doi
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|a pubmed24n0659.xml
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|a (DE-627)NLM197716636
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|a (NLM)20430801
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Jin, Jian
|e verfasserin
|4 aut
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|a Heavy metals stabilization in medical waste incinerator fly ash using alkaline assisted supercritical water technology
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 18.03.2011
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|a Date Revised 25.11.2016
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a This study investigated the process of aluminosilicate formation in medical waste incinerator fly ash containing large amounts of heavy metals and treated with alkaline compounds at 375 degrees C and examined how this process affected the mobility and availability of the metals. As a consequence of the treatments, the amount of dissolved heavy metals, and thus their mobility, was greatly reduced, and the metal leaching concentration was below the legislative regulations for metal leachability. Moreover, this process did not produce a high concentration of heavy metals in the effluent. The addition of alkaline compounds such as sodium hydroxide and sodium carbonate can prevent certain heavy metal ions dissolving in water. In comparison with the alkaline-free condition, the extracted concentrations of As, Mn, Pb, Sr and Zn were decreased by about 51.08, 97.22, 58.33, 96.77 and 86.89% by the addition of sodium hydroxide and 66.18, 86.11, 58.33, 83.87 and 81.91% by the addition of sodium carbonate. A mechanism for how the formation of aluminosilicate occurred in supercritical water and affected the mobility and availability of the heavy metals is discussed. The reported results could be useful as basic knowledge for planning new technologies for the hydrothermal stabilization of heavy metals in fly ash
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Aluminum Silicates
|2 NLM
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|a Coal Ash
|2 NLM
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|a Medical Waste
|2 NLM
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|a Metals, Heavy
|2 NLM
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|a Particulate Matter
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a aluminosilicate
|2 NLM
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|a 1U9X05245H
|2 NLM
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|a Carbon
|2 NLM
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| 650 |
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|a 7440-44-0
|2 NLM
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| 700 |
1 |
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|a Li, Xiaodong
|e verfasserin
|4 aut
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1 |
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|a Chi, Yong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Jianhua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g 28(2010), 12 vom: 01. Dez., Seite 1133-42
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnns
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| 773 |
1 |
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|g volume:28
|g year:2010
|g number:12
|g day:01
|g month:12
|g pages:1133-42
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|u http://dx.doi.org/10.1177/0734242X10362243
|3 Volltext
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