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231223s2007 xx ||||| 00| ||eng c |
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|a pubmed24n0571.xml
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|a (DE-627)NLM171233476
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|a (NLM)17605328
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Liu, Guojing
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Effect of copper(II) on natural organic matter removal during drinking water coagulation using aluminum-based coagulants
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| 264 |
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|c 2007
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 07.08.2007
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|a Date Revised 23.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Coagulation has been proposed as a best available technology for controlling natural organic matter (NOM) during drinking water treatment. The presence of heavy metals such as copper(II) in source water, which may form copper-NOM complexes and/or interact with a coagulant, may pose a potential challenge on the coagulation of NOM. In this work, the effect of copper(II) on NOM removal by coagulation using alum or PAX-18 (a commercial polymerized aluminum chloride from Kemiron Inc., Bartow, Florida) was examined. The results show that the presence of 1 to 10 mg/L of copper(H) in the simulated waters improved the total organic carbon (TOC) removal by up to 25% for alum coagulation and by up to 22% for PAX-18 coagulation. The increased NOM removal with the presence of copper(II) in the waters can most likely be ascribed to the formation copper-NOM complexes that may be more adsorbable on aluminum precipitates and to the formation of copper(II) co-precipitates that may also adsorb NOM. The presence of 1 to 5 mg/L of copper(I) in the waters containing 3 mg/L NOM as carbon was reduced below the maximum contaminant level goal (1.3 mg/L as copper) using either coagulant. The results suggest that the presence of copper(H) in source water may not adversely affect the NOM removal by coagulation. A good linear correlation was observed between the TOC removal efficiency and the log-total moles of the precipitated metals, which include the metal ion from a coagulant and the divalent metal ion(s) in source water
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Alum Compounds
|2 NLM
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| 650 |
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7 |
|a Aluminum Compounds
|2 NLM
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7 |
|a Chlorides
|2 NLM
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7 |
|a Organic Chemicals
|2 NLM
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7 |
|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a Water
|2 NLM
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| 650 |
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7 |
|a 059QF0KO0R
|2 NLM
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| 650 |
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|a aluminum sulfate
|2 NLM
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| 650 |
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|a 34S289N54E
|2 NLM
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| 650 |
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7 |
|a Aluminum Chloride
|2 NLM
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| 650 |
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7 |
|a 3CYT62D3GA
|2 NLM
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| 650 |
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7 |
|a Copper
|2 NLM
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| 650 |
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|a 789U1901C5
|2 NLM
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| 700 |
1 |
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|a Zhang, Xiangru
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Talley, Jeffrey W
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 79(2007), 6 vom: 28. Juni, Seite 593-9
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
8 |
|g volume:79
|g year:2007
|g number:6
|g day:28
|g month:06
|g pages:593-9
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|a GBV_USEFLAG_A
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|a SYSFLAG_A
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|a GBV_NLM
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|a GBV_ILN_350
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|a AR
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|d 79
|j 2007
|e 6
|b 28
|c 06
|h 593-9
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