The determination and fate of disinfection by-products from ozonation of polluted raw water

Huang, Wei-Che; Fang, Guor‐Cheng; Wang, Chun-Chen

doi:10.1016/j.scitotenv.2004.10.019

Cited by 142 publications

(54 citation statements)

References 21 publications

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“…As with Science of the Total Environment, all types of filter pore sizes were applied: unfiltered samples-TOC determination (2), 0.7 lm pore size filters (2), 0.45 lm pore size filters (3), 0.2 lm pore size filters (3), Whatman GF/C (no size mentioned) (1), Whatman GF/F (no size mentioned) (1), either no size or no filtration mentioned but DOC values reported (4). Concerning OC determination, DOC determinations were River suspended sediments Identification of organic components Hillier (2001) C/N ratio River suspended sediments Identification of the NOM origin Hillier (2001) Sediments and zooplankton Trace the origin of POM Kainz and Lucotte (2002) Freshwater sediments Identification of the NOM sources Leite Silva and Rezende (2002) Suspended and bed sediments None Tareq et al (2003) Urban catchment suspended sediment Trulleyová and Rulík (2004) SUVA (no k given) Laboratory study None Huang et al (2005) Fluorescence excitationemission matrix (EEM) Filtered (GF/C) river water Determination of the source of NOM Baker and Spencer (2004) Fluorescence k ex /k em : 366/450 Unfiltered river water ''Information relating to the structure and conformation'' of ''humic substances''; study of NOM-Cu complexation Patel-Sorrentino et al…”

Section: Journal Of Hydrologymentioning

confidence: 99%

“…• NOM isolated from a wetland pond by using a cross-linked polyvinyl pyrrolidone (PVP) polymer, as described in Lowe (1975) • IHSS soil humic acid Chen et al (2003) Fenton degradation of hydrophobic organics IHSS Suwannee River humic acid standard Lindsey et al (2003) Establishment of a method for dissolved gaseous Hg determination Humic substances from a lake dam by the XAD-8 method (Thurman and Malcolm 1981 Gourlay et al (2005) Determination of disinfection byproducts from ozonation of raw water OM from a reservoir fractionated according to Leenheer (1981) into humic, fulvic and hydrophilic Huang et al (2005) Environ Chem Lett (2009) 7:21-35 31 subtropical forests. Only one laboratory study was found; the authors used acetate as a model compound for DOC (Petrunic et al 2005).…”

Section: Journal Of Hydrologymentioning

confidence: 99%

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Freshwaters: which NOM matters?

Filella

2008

Environ Chem Lett

101

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One of the difficulties encountered in the study of natural organic matter (NOM) in aquatic environments concerns terminology: a large number of different names and acronyms are used. In fact, this diversity merely reflects the variety of approaches applied to the study of NOM, leading to the definition and measurement of different operationally-defined fractions. As a result, the choice of the ‘best’ method to use and of the ‘best’ fraction to work on in a particular case is far from straightforward. This has as a consequence that often very simple methods for NOM characterisation are used in applied environmental studies and surveys. This study includes, first, a review of the most widely applied terminology, as described in over 500 articles, and, second, a first attempt at assessing how the panoply of methods available is really used in applied environmental studies

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Section: Journal Of Hydrologymentioning

confidence: 99%

Section: Journal Of Hydrologymentioning

confidence: 99%

Freshwaters: which NOM matters?

Filella

2008

Environ Chem Lett

101

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“…A formação de aldeídos pelo processo de ozonização das águas de abastecimento está bem estabelecida (LANGLAIS et al, 1991;MELIN & ODEGAARD, 2000;HUANG et al, 2005 O método aplicado para determinar as moléculas de baixo peso molecular dos compostos carbonílicos na água usando O-(2,3,4,5,6-pentafluorobenzil hidroxilamina hidrocloreto -PFBOA-HCl) como agente derivatizante, originalmente foi descrito por Yamada & Somiya (1989) e aperfeiçoado por Glaze et al (1989) Para avaliar a existência, ou não, de diferenças significativas entre os valores médios de pH, DQO, concentrações de formaldeído, acetaldeído e glioxal metilglioxal, e eficiência de inativação para coliformes fecais e E. coli, empregou-se o método estatístico para "comparação de médias de duas amostras" (MILLER & MILLER, 1993). De acordo com os dados reportados na literatura, a eficiência na desinfecção por ozonização é pouco afetada para os valores de pH entre 6,0 e 8,0 (LANGLAIS et al, 1991;SILVA et al, 2007;2010;2011).…”

Section: Parâmetrounclassified

Desinfecção de efluente anaeróbio com o uso de ozônio/cloro

Silva

Daniel

2015

Eng. Sanit. Ambient.

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RESUMOO principal objetivo desta pesquisa foi estudar o processo de oxidação, a eficiência da inativação de coliformes e a formação de subprodutos da ozonização, associado com a desinfecção de efluente sanitário anaeróbio proveniente de um reator UASB. Tal evento foi realizado por meio da aplicação das dosagens de ozônio de 5,0 mg.O 3 .L -1 + 10 mg.Cl 2 .L -1 (ensaio 1); ABSTRACTThe main purpose of this research was to study the oxidation process, the coliform inactivation effectiveness, and the formation of ozone disinfection byproducts, which were associated with disinfection of the anaerobic sanitary wastewater effluent from a UASB reactor. Nos últimos anos, em função da maior atenção dada às saúdes ambiental e pública, houve um aumento da preocupação com a possível toxicidade dos agentes desinfetantes e dos respectivos subprodutos da desinfecção.

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“…Water disinfection practices such as chlorination, ozonation, and UV treatment are commonly used. However, chlorination and ozonation, used separately or combined, often result in disinfection by-products (Huang et al, 2005;Muller et al, 2012;Richardson and Postigo, 2011;Zha et al, 2014). Many of the disinfection by-products can pose negative impact to human health (Krasner et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Fe3+-saturated montmorillonite effectively deactivates bacteria in wastewater

Qin

Chen

Shang

et al. 2018

Science of The Total Environment

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• Fe 3+ -saturated montmorillonite's antibacterial activity was studied.• Wastewater bacteria was deactivated effectively by Fe 3+ -saturated montmorillonite.• Fe 3+ -saturated montmorillonite deactivated bacteria possibly by cell membrane damage.• Fe 3+ -saturated montmorillonite can disinfect bacteria-contaminated water. G R A P H I C A L A B S T R A C TThe graphic abstract figure is only for simple demonstration of possible reaction processes. Sizes of different components do not reflect their actual relative scales.a b s t r a c t a r t i c l e i n f o Existing water disinfection practices often produce harmful disinfection byproducts. The antibacterial activity of Fe 3+ -saturated montmorillonite was investigated mechanistically using municipal wastewater effluents. Bacterial deactivation efficiency (bacteria viability loss) was 92 ± 0.64% when a secondary wastewater effluent was mixed with Fe 3+ -saturated montmorillonite for 30 min, and further enhanced to 97 ± 0.61% after 4 h. This deactivation efficiency was similar to that when the same effluent was UV-disinfected before it exited a wastewater treatment plant. Comparing to the secondary wastewater effluent, the bacteria deactivation efficiency was lower when the primary wastewater effluent was exposed to the same dose of Fe 3+ -saturated montmorillonite, reaching 29 ± 18% at 30 min and 76 ± 1.7% at 4 h. Higher than 90% bacterial deactivation efficiency was achieved when the ratio between wastewater bacteria population and weight of Fe 3+ -saturated montmorillonite was at b 2 × 10 3 CFU/mg. Furthermore, 99.6-99.9% of total coliforms, E. coli, and enterococci in a secondary wastewater effluent was deactivated when the water was exposed to Fe 3+ -saturated montmorillonite for 1 h. Bacterial colony count results coupled with the live/dead fluorescent staining assay observation suggested that Fe 3+ -saturated montmorillonite deactivated bacteria in wastewater through two possible stages: electrostatic sorption of bacterial cells to the surfaces of Fe 3+ -saturated montmorillonite, followed by bacterial deactivation due to mineral surface-catalyzed bacterial cell membrane disruption by the surface sorbed Fe 3+ . Freeze-drying the recycled Fe 3+ -saturated montmorillonite after each usage resulted in 82 ± 0.51% bacterial deactivation efficiency Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v even after its fourth consecutive use. This study demonstrated the promising potential of Fe 3+ -saturated montmorillonite to be used in applications from small scale point-of-use drinking water treatment devices to large scale drinking and wastewater treatment facilities.

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The determination and fate of disinfection by-products from ozonation of polluted raw water

Cited by 142 publications

References 21 publications

Freshwaters: which NOM matters?

Freshwaters: which NOM matters?

Desinfecção de efluente anaeróbio com o uso de ozônio/cloro

Fe3+-saturated montmorillonite effectively deactivates bacteria in wastewater

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