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231224s2015 xx |||||o 00| ||eng c |
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7 |
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|a 10.2166/wst.2015.329
|2 doi
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|a pubmed25n0843.xml
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|a (DE-627)NLM253017580
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|a (NLM)26398034
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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 Lin, Qintie
|e verfasserin
|4 aut
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|a Competitive removal of Cu-EDTA and Ni-EDTA via microwave-enhanced Fenton oxidation with hydroxide precipitation
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|c 2015
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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 18.12.2015
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|a Date Revised 07.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a Ethylenediaminetetraacetic acid (EDTA) can form very stable complexes with heavy metal ions, greatly inhibiting conventional metal-removal technologies used in water treatment. Both the oxidation of EDTA and the reduction of metal ions in metal-EDTA systems via the microwave-enhanced Fenton reaction followed by hydroxide precipitation were investigated. The Cu(II)-Ni(II)-EDTA, Cu(II)-EDTA and Ni(II)-EDTA exhibited widely different decomplexation efficiencies under equivalent conditions. When the reaction reached equilibrium, the chemical oxygen demand was reduced by a microwave-enhanced Fenton reaction in different systems and the reduction order from high to low was Cu(II)-Ni(II)-EDTA ≈ Cu(II)-EDTA > Ni(II)-EDTA. The removal efficiencies of both Cu(2+) and Ni(2+) in Cu-Ni-EDTA wastewaters were much higher than those in a single heavy metal system. The degradation efficiency of EDTA in Cu-Ni-EDTA was lower than that in a single metal system. In the Cu-Ni-EDTA system, the microwave thermal degradation and the Fenton-like reaction created by Cu catalyzed H2O2 altered the EDTA degradation pathway and increased the pH of the wastewater system, conversely inhibiting residual EDTA degradation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Coordination Complexes
|2 NLM
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|a Fenton's reagent
|2 NLM
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|a Waste Water
|2 NLM
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|a Water Pollutants, Chemical
|2 NLM
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|a Copper
|2 NLM
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| 650 |
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|a 789U1901C5
|2 NLM
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|a Nickel
|2 NLM
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|a 7OV03QG267
|2 NLM
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|a Edetic Acid
|2 NLM
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7 |
|a 9G34HU7RV0
|2 NLM
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| 650 |
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|a Hydrogen Peroxide
|2 NLM
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| 650 |
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|a BBX060AN9V
|2 NLM
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|a Iron
|2 NLM
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| 650 |
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|a E1UOL152H7
|2 NLM
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| 700 |
1 |
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|a Pan, Hanping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Kun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pan, Yonggang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Long, Wei
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 72(2015), 7 vom: 01., Seite 1184-90
|w (DE-627)NLM098149431
|x 1996-9732
|7 nnns
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| 773 |
1 |
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|g volume:72
|g year:2015
|g number:7
|g day:01
|g pages:1184-90
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|u http://dx.doi.org/10.2166/wst.2015.329
|3 Volltext
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|a AR
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|d 72
|j 2015
|e 7
|b 01
|h 1184-90
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