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20231223141943.0 |
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231223s2007 xx ||||| 00| ||eng c |
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|a (NLM)18044353
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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 |
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|a Mezzanotte, V
|e verfasserin
|4 aut
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|a Wastewater disinfection alternatives
|b chlorine, ozone, peracetic acid, and UV light
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|c 2007
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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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|b nc
|2 rdacarrier
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|a Date Completed 31.01.2008
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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 Disinfection tests were carried out at pilot scale to compare the disinfection efficiency of ozone, sodium hypochlorite (NaOCl), peracetic acid (PAA), and UV irradiation. Total coliforms, fecal coliforms, and Escherichia coli were monitored as reference microorganisms. Total heterotrophic bacteria (THB) were also enumerated by cytometry. At similar doses, NaOCl was more effective than PAA, and its action was less affected by contact time. The results obtained by ozonation were comparable for total coliforms, fecal coliforms, and E. coli. On the contrary, some differences among the three indicators were observed for NaOCl, PAA, and UV. Differences increased with increasing values of the disinfectant concentration times contact time (C x t) and were probably the result of different initial counts, as total coliforms include fecal coliforms, which include E. coli. The UV irradiation lead to complete E. coli removals, even at low doses (10 to 20 mJ/cm2). Total heterotrophic bacteria appeared to be too wide a group to be a good disinfection indicator; no correlation was found among THB inactivation, dose, and contact time
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Sewage
|2 NLM
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|a Chlorine
|2 NLM
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|a 4R7X1O2820
|2 NLM
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|a Ozone
|2 NLM
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|a 66H7ZZK23N
|2 NLM
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|a Peracetic Acid
|2 NLM
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| 650 |
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|2 NLM
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| 700 |
1 |
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|a Antonelli, M
|e verfasserin
|4 aut
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|a Citterio, S
|e verfasserin
|4 aut
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| 700 |
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|a Nurizzo, C
|e verfasserin
|4 aut
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 79(2007), 12 vom: 10. Nov., Seite 2373-9
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:79
|g year:2007
|g number:12
|g day:10
|g month:11
|g pages:2373-9
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