A review on advanced oxidation processes for the removal of taste and odor compounds from aqueous media

Αντωνοπούλου, Μαρία; Εvgenidou, Εleni; Lambropoulou, Dimitra A.; Konstantinou, Ioannis

doi:10.1016/j.watres.2014.01.028

Cited by 378 publications

(143 citation statements)

References 70 publications

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“…chemical oxidation, electrochemical oxidation, Fenton reaction, Ozone treatment and photocatalytic oxidation) have been extensively investigated for the decades and can be considered as a fully developed technology which are enable to remove about 90 % of BOD/COD content of PW [29]. The AOPs include a number of different reactions such as O 3 +H 2 O 2 , UV+ H 2 O 2 , UV+O 3 or O 3 +UV+TiO 2 , and Fenton reaction [30]. Furthermore, there are some other non-conventional AOPs such as wet-air-oxidation and humid-oxidation with peroxide (OHP) [31].…”

Section: Chemical Treatment Methodsmentioning

confidence: 99%

Produced Water from Oil-Gas Plants: A Short Review on Challenges and Opportunities

Nasiri¹,

Jafari²

2016

Period. Polytech. Chem. Eng.

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The produced water, which could be a complex mixture of different organic and inorganic compounds (mostly salts, minerals and oils) is a major wastewater stream generated during oil and gas production processes. Due to increase oil and gas exploration and production, especially from unconventional resources like shale oil and gas reservoirs, the volume of this effluent production is increasing around the world and its discarding to the environment is one of the global concerns.

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Section: Chemical Treatment Methodsmentioning

confidence: 99%

Produced Water from Oil-Gas Plants: A Short Review on Challenges and Opportunities

Nasiri¹,

Jafari²

2016

Period. Polytech. Chem. Eng.

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“…Ozone oxidation and biodegradation by biological activated carbon have been considered to be two effective methods for mitigation of the odor problem (Newcombe et al, 1997;Geering, 1999;Cook et al, 2001;von Gunten, 2003a) The combination of ozonation and biological activated carbon (BAC) (O 3 -BAC), which integrates the oxidation effect of O 3 and the biological degradation effect of BAC, have often been adopted as an advanced water treatment approach because of its capability in comprehensively improving drinking water quality (Newcombe and Cook, 2002). Though the O 3 -BAC process has been proved to be effective in the removal of odors (Cook et al, 2001;Newcombe and Cook, 2002), most of the previous studies have mainly been limited to the earthy odorants including 2-MIB and geosmin (Srinivasan and Sorial, 2011;Antonopoulou et al, 2014). Ozonation and associated advanced oxidation processes (O 3 /H 2 O 2 , UV/O 3 , UV/O 3 /H 2 O 2 ) have been proved to be effective for the removal of 2-MIB and geosmin (Atasiet et al, 1999;Ho et al, 2002;Jung et al, 2004;Liang et al, 2007;Andreadakis et al, 2010;Mizuno et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, most odor events in drinking waters have been caused by multiple odorants (Khiari et al, 1995;Suffet et al, 1999). However, studies to explore the effectiveness of the O 3 -BAC process in the mitigation of odors in source waters containing widely varying OTCs and concentration levels are still very limited (Srinivasan and Sorial, 2011;Antonopoulou et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Guo

Yang

et al. 2016

Water Research

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a b s t r a c tOzonation is known to be very effective in the removal of odorants from source water. However, it is not known if ozonation is effective in the removal of multiple odorants causing different types of odors. In this study, the removal performance for odors and odorants were evaluated in a Water Treatment Plant (WTP), which was equipped with coagulation, sedimentation, ozonation, biological activated carbon (BAC) filtration, sand filtration, and chlorination in succession and located in the downstream of the Huangpu (HP) River, over the period from April, 2014 to April, 2015. Flavor profile analysis (FPA) results showed that the source water was constantly associated with septic and musty odors. Geosmin and 2-MIB, with an average OAV of 4.54 and 1.38, respectively, were the major odorants for musty odor, while bis(2-chloroisopropyl) ether, DEDS and DMDS with an average OAV of 2.35, 1.65 and 0.78, respectively, might be responsible for the septic odor. While the musty odor could be removed effectively through the combination of ozonation and BAC, the septic odor and associated odorants required further treatment with sand filtration and chlorination for complete removal. It is clear that the advanced treatment process was effective for the treatment of source water containing complicated odorants. It should be noted that the sedimentation process needs careful management because release of odorants may occur during the treatment. The result of this study will be helpful for the mitigation of odors in WTP using source waters suffering from complicated odor problems.

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“…Considering previous studies on GSM photocatalytic degradation [6], geosmin has a variety of photocatalytic degradation ways. To summarize, geosmin may be oxidized by active groups firstly, successively removed 1 hydroxyl and 2 methyl attached to the ring structure of geosmin; secondly, geosmin transformed to polycyclic olefins; thirdly, after the ring opening, a serial of intermediates such as monocyclic alkanes, cycloolefin and ketones, etc were produced and final degradation products were CO 2 and H 2 O.…”

Section: Possible Photocatalytic Mechanismmentioning

confidence: 99%

Photocatalytic Degradation of Geosmin with Zn-Al Multi-metal Oxide Composites Derived from Layered Double Hydroxide Precursors

Hu¹,

Zhu²,

Zhang³

et al. 2017

dteees

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Abstract. Geosmin is one of the typical odor compounds in water environment, it has a very low odor threshold (10ng/L), and difficult to degrade in natural environment. In this study, a Zn-Al multi-metal oxide, based on Zn-Al-LDH as a precursor, was prepared and used as photocatalyst to investigate the photocatalytic degradation performance of geosmin in the range of ng level in aqueous solution. Firstly, Zn-Al-LDH was synthesized by co-precipitation method, and the Zn-Al multi-metal oxide was produced after calcination of Zn-Al-LDH at 1023 K in air. The obtained Zn-Al multi-metal oxide showed a good photocatalytic degradation performance. In the condition of simulated solar light, 1g/L catalyst dosage and initial geosmin concentration of 200ng/L, the apparent rate constant k app is 0.017min -1 . After 3 hours of photocatalytic reaction, the residual concentration of geosmin decreased to lower than 10ng/L, which can meet the requirements of "Standards for Drinking Water Quality" (GB5749-2006). The result showed that the photocatalytic reaction efficiency was mainly related with the part of ultraviolet light. The photocatalytic activity of the Zn-Al-MMO was little affected by pH over the range of 4-10. The possible photocatalytic degradation mechanism of the geosmin was also discussed.

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A review on advanced oxidation processes for the removal of taste and odor compounds from aqueous media

Cited by 378 publications

References 70 publications

Produced Water from Oil-Gas Plants: A Short Review on Challenges and Opportunities

Produced Water from Oil-Gas Plants: A Short Review on Challenges and Opportunities

Simultaneous removal of multiple odorants from source water suffering from septic and musty odors: Verification in a full-scale water treatment plant with ozonation

Photocatalytic Degradation of Geosmin with Zn-Al Multi-metal Oxide Composites Derived from Layered Double Hydroxide Precursors

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