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01000naa a22002652 4500 |
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NLM150169450 |
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DE-627 |
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20231223053310.0 |
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tu |
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231223s2004 xx ||||| 00| ||eng c |
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|a pubmed24n0501.xml
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|a (DE-627)NLM150169450
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|a (NLM)15338691
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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 Zheng, Anping
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Effects of thiocyanate on the formation of free cyanide during chlorination and ultraviolet disinfection of publicly owned treatment works secondary effluent
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| 264 |
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1 |
|c 2004
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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 02.11.2004
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|a Date Revised 22.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Cyanide has been detected in effluent of some publicly owned treatment works (POTWs) at levels exceeding influent concentration. Thiocyanate (SCN-) is a cyanide-related compound encountered in most POTW influents and may be decomposed to free cyanide (CN-) under some circumstances. Effects of SCN- on the formation of cyanide during chlorination and UV disinfection were studied through a laboratory study with synthetic solutions and POTW secondary effluent. Results indicated that CN- was detected in SCN- solutions after chlorination in which the chlorine dose or reaction time was not sufficient to destroy SCN-completely, thus ensuring no residual chlorine to destroy any CN-produced. It was also found that SCN can be broken down to yield cyanide by UV irradiation. In addition, SCN- was observed to cause significant positive error in the conventional total cyanide analysis technique involving acidic distillation and colorimetric measurement when nitrate was present in the sample
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| 650 |
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|a Journal Article
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| 650 |
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4 |
|a Research Support, Non-U.S. Gov't
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| 650 |
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4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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7 |
|a Cyanides
|2 NLM
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| 650 |
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7 |
|a Thiocyanates
|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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7 |
|a Chlorine
|2 NLM
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| 650 |
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7 |
|a 4R7X1O2820
|2 NLM
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| 650 |
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7 |
|a thiocyanate
|2 NLM
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| 650 |
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7 |
|a O748SU14OM
|2 NLM
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| 700 |
1 |
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|a Dzombak, David A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luthy, Richard G
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 76(2004), 3 vom: 03. Mai, Seite 205-12
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
8 |
|g volume:76
|g year:2004
|g number:3
|g day:03
|g month:05
|g pages:205-12
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| 912 |
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|a GBV_USEFLAG_A
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| 912 |
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|a SYSFLAG_A
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| 912 |
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|a GBV_NLM
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| 912 |
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|a GBV_ILN_350
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| 951 |
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|a AR
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| 952 |
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|d 76
|j 2004
|e 3
|b 03
|c 05
|h 205-12
|