Ozone Treatment of Secondary Effluent at U.S. Municipal Wastewater Treatment Plants

Oneby, Michael; Bromley, Charles; Borchardt, James; Harrison, David

doi:10.1080/01919510903482780

Cited by 57 publications

(33 citation statements)

References 2 publications

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“…This information can be used when structure elucidation of oxidation transformation products is the ultimate goal, which is the case for this study. Based on the findings presented here, if doses in the range of those typically applied at WWTPs (between 3 and 10 mg L −1 compared to a maximum of 0.30 mg L −1 used to obtain the removal profiles presented here) are applied to wastewater effluent containing these drugs at the same initial concentration, the removals of some compounds would be significantly higher and in some cases complete removal or transformation may be observed, as such a trend was observed during ozonation of other compounds (Oneby et al, 2010;Ried et al, 2009). Fig.…”

Section: Doa Removal During Ozonationmentioning

confidence: 94%

“…The analysis of these samples by LC-HRMS confirmed the presence of the exact masses of the OTPs of each DOA, confirming their presence in ozonated wastewater. However, in order to further validate the results, it would be necessary to identify these OTPs when ozone doses in the range of 3 to 10 mg L −1 are applied, to be consistent with those used at WWTPs (Oneby et al, 2010;Ried et al, 2009). The results presented here however, reveal that the structural elucidation and an ecotoxicological evaluation of the persistent OTPs are imperative to evaluate the potential effects of the presence of these compounds on aquatic organisms, biota and the ecosystem which have been suggested to be comparable with therapeutic drugs (van Nuijs et al, 2011).…”

Section: Identification Of the Main Otps Of The Selected Doas By Diffmentioning

confidence: 99%

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Ozonation of wastewater: Removal and transformation products of drugs of abuse

Rodayan

Segura

Yargeau

2014

Science of The Total Environment

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• The ozonation of six drugs of abuse and one human drug metabolite was carried out.• Drug removals vary between 3 and 50% for the ozone doses tested.• The main transformation products of the drugs of abuse were identified.• The most plausible structure of a transformation product of MDMA was elucidated. a b s t r a c t a r t i c l e i n f o In this study amphetamine, methamphetamine, methylenedioxymethamphetamine (MDMA), cocaine (COC), benzoylecgonine (BE), ketamine (KET) and oxycodone (OXY) in wastewater at concentrations of 100 μgL −1 were subjected to ozone to determine their removals as a function of ozone dose and to identify significant oxidation transformation products (OTPs) produced as a result of ozonation. A method based on high resolution mass spectrometry and differential analysis was used to facilitate and accelerate the identification and structural elucidation of the transformation products. The drug removal ranged from 3 to 50% depending on the complexity of the matrix and whether a mixture or individual drugs were ozonated. Both transient and persistent oxidation transformation products were identified for MDMA, COC and OXY and their chemical formulae were determined. Three possible structures of the persistent transformation product of MDMA (OTP-213) with chemical formula C 10 H 16 O 4 N, were determined based on MS n mass spectra and the most plausible structure (OTP-213a) was determined based on the chemistry of ozone. These results indicate that ozone is capable of removing drugs of abuse from wastewater to varying extents and that persistent transformation products are produced as a result of treatment.

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Section: Doa Removal During Ozonationmentioning

confidence: 94%

Section: Identification Of the Main Otps Of The Selected Doas By Diffmentioning

confidence: 99%

Ozonation of wastewater: Removal and transformation products of drugs of abuse

Rodayan

Segura

Yargeau

2014

Science of The Total Environment

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“…Although the applied ozone dose in this study was higher than is normally used for ozone applications in drinking water disinfection (due to the high ozone demand of the IBH), CT values provide a normalized approach to characterizing susceptibility of a particular microbial contaminant to ozone in an aqueous matrix. Ozone is used extensively for inactivation of pathogens and the degradation of various noxious chemicals in large-scale municipal drinking water and municipal/industrial wastewater treatment systems (10,24,29,30). Application of ozone to these water matrices requires that ozone be (i) of a sufficient concentration to satisfy all oxidation (i.e., ozone) demands associated with organic loads (lipids, proteins, carbohydrates, etc.)…”

Section: Discussionmentioning

confidence: 99%

Inactivation of Template-Directed Misfolding of Infectious Prion Protein by Ozone

Ding

Neumann

Price

et al. 2012

Appl Environ Microbiol

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Misfolded prions (PrP Sc ) are well known for their resistance to conventional decontamination processes. The potential risk of contamination of the water environment, as a result of disposal of specified risk materials (SRM), has raised public concerns. Ozone is commonly utilized in the water industry for inactivation of microbial contaminants and was tested in this study for its ability to inactivate prions (263K hamster scrapie ‫؍‬ PrP Sc ). Treatment variables included initial ozone dose (7.6 to 25.7 mg/liter), contact time (

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“…Chemical oxidation process using strong oxidation agents is a good option for removing non-biodegradable organic compounds from biologically-treated effluent (Oeller and Demel, 1997;Arslan and Balcioglu, 2001;Yasar et al, 2007;Tambosi et al, 2009). As a chemical oxidation agent, ozone (O 3 ) can effectively remove both color and odor from water and gas stream (Barker and Jones, 1988;Sauze et al, 1991;Tosik and Wiktorowski, 2001;Gharbani et al, 2008;Oneby et al, 2010) and it produces less byproducts compared to chlorine-based oxidation (Richardson et al, 1999;Kleiser and Frimmel, 2000;Rakness, 2005). However, ozone alone is less effective for general chemical oxygen demand (COD) removal because its degradation of carbon-carbon covalent bonds is not that high (Hoigne and Bader, 1983;Fronk, 1987;Barker and Jones, 1988;Langlais et al, 1991).…”

Section: Introductionmentioning

confidence: 99%

Hydrogen peroxide interference in chemical oxygen demand during ozone based advanced oxidation of anaerobically digested livestock wastewater

Lee

Kim

et al. 2011

Int. J. Environ. Sci. Technol.

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It is known that hydrogen peroxide interferes with chemical oxygen demand analysis by consuming oxidation agents such as potassium dichromate, thus leading to overestimation of the chemical oxygen demand measurements. The objective of the study was to investigate the effects of hydrogen peroxide interference and to determine true chemical oxygen demand values on interpreting treatment performance during ozone-based advanced oxidation of livestock wastewater in which hydrogen peroxide concentration and chemical oxygen demand values are dynamically changing. According to the chemical oxygen demand monitoring data, chemical oxygen demand values were always higher than the initial chemical oxygen demand load when hydrogen peroxide was involved and the treatment performance with ozone alone or ozone/ultraviolet was better than with coupled hydrogen peroxide. The extent of overestimation was proportional to the remaining hydrogen peroxide concentration and the average overestimation ratio in livestock wastewater was in the range of 0.50~0.58 mg per 1 mg of hydrogen peroxide, depending upon the quality of the wastewater treated. True chemical oxygen demand values were estimated by correlating the extent of overestimation with the remaining hydrogen peroxide concentration during treatment. The extent of overestimation decreased to zero gradually as the amount of hydrogen peroxide also approached zero as oxidation proceeded. The corrected chemical oxygen demand values indicated underlying tendency of oxidation, which could not be seen in the original chemical oxygen demand monitoring data. Application of ozone/hydrogen peroxide was more efficient for reducing chemical oxygen demand than ozone alone, as was ozone/hydrogen peroxide/ultraviolet compared to ozone/ultraviolet. When coupled with ozone, ultraviolet irradiation was more efficient than hydrogen peroxide for decreasing chemical oxygen demand during treatment of livestock wastewater.

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Ozone Treatment of Secondary Effluent at U.S. Municipal Wastewater Treatment Plants

Cited by 57 publications

References 2 publications

Ozonation of wastewater: Removal and transformation products of drugs of abuse

Ozonation of wastewater: Removal and transformation products of drugs of abuse

Inactivation of Template-Directed Misfolding of Infectious Prion Protein by Ozone

Hydrogen peroxide interference in chemical oxygen demand during ozone based advanced oxidation of anaerobically digested livestock wastewater

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