Solar photo-Fenton using peroxymonosulfate for organic micropollutants removal from domestic wastewater: Comparison with heterogeneous TiO 2 photocatalysis

Ahmed, Moussa Mahdi; Brienza, Monica; Goetz, V.; Chirón, Serge

doi:10.1016/j.chemosphere.2014.07.046

Cited by 75 publications

(28 citation statements)

References 25 publications

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“…Recently, increasing attention has been paid to the catalytic peroxymonosulfate (HSO5 -, PMS) oxidation based on sulfate radicals (SO4 •-) due to its high efficiency of selection and degradation for some refractory organic contaminants (Neta et al, 1988). Having a comparable oxidizing ability of HO • (E 0 = 1.9-2.7V) (Buxton et al, 1988), SO4 •-with E 0 of 2.5-3.1V (Neta et al, 1988) presents a powerful oxidation capacity of antibiotics (Ahmed et al, 2012), e.g., destruction of antibiotics in pure water, underground water, domestic wastewater, and swine wastewater (Ahmed et al, 2012;Ahmed et al, 2014;Ben et al, 2009;Ji et al, 2014). However, little information is currently available with regard to the remediation of antibiotics in pharmaceutical wastewater based on SO4 •-oxidation.…”

Section: Introductionmentioning

confidence: 99%

“…Activated approaches of PMS or persulfate (PS) by such as photons (Ahmed et al, 2014;Kim H.Y. et al, 2015), heat (Ji et al, 2015;Qi et al, 2014), organic compound (Lei et al, 2015;Zhou et al, 2015), metal-based catalyst (Ayoub and Ghauch, 2014;Ghauch et al, 2013), transition metals (Ji et al, 2014) have been used to produce more SO4 •-to eliminate organic contaminants.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Efficient degradation of sulfamethoxazole by the Fe(II)/HSO5− process enhanced by hydroxylamine: Efficiency and mechanism

Liu

Han

et al. 2017

Journal of Hazardous Materials

160

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Fenton or Fenton-like processes have been regarded as feasible methods to degrade a wide variety of contaminants by generating reactive species, but the efficiency is highly affected by the slow transformation from Fe(III) to Fe(II) as well as pH. This study proposed a method by adding hydroxylamine (HA) to the Fe(II)/HSO5 -(Fe(II)/PMS) process to accelerate the degradation of contaminants, selecting a broad-spectrum sulfonamide antibiotic -

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Efficient degradation of sulfamethoxazole by the Fe(II)/HSO5− process enhanced by hydroxylamine: Efficiency and mechanism

Liu

Han

et al. 2017

Journal of Hazardous Materials

160

View full text Add to dashboard Cite

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“…Advanced oxidation system using solar irradiation/peroxymonosulfate (PMS)/ Fe 2+ to degrade many organic micropollutants was studied by Ahmed et al [88] and compared with the UV/TiO 2 oxidative system. The authors showed that the PMS/Fe(II)/UV-Vis advanced oxidation system has better kinetic performances over TiO 2 /UV-Vis system for six organic micropollutants removal in WWTP effluents mainly due to the higher selectivity in reactivity of SO 4 • − with respect to HO• in organic matrices.…”

Section: Integrated Processesmentioning

confidence: 99%

Micropollutant Removal from Water by Membrane and Advanced Oxidation Processes—A Review

Silva¹,

Moreira²,

Curzio³

et al. 2017

JWARP

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Micropollutants are defined as contaminants found in trace concentrations in water bodies that are persistent and bioactive, meaning they are not completely biodegradable and cannot be removed by conventional water treatment methods. Because of these aspects, their detection and removal pose a challenge to the scientific community. Among them are endocrine disruptors, drugs, agricultural chemicals, personal grooming products, industrial additives and others. These micropollutants are the cause for global concern, because their presence in water supply systems is suspected of causing health problems in humans and animals. To develop efficient techniques to remove them, it is fundamental to understand their physico-chemical properties and the available treatment types and conditions. Membrane separation processes (MSPs) and advanced oxidation processes (AOPs) are the focus of this literature review, as potential treatment methods to remove micropollutants. The former process stands out for high rejection rates (above 90%) of various micropollutants, but it generates a concentrated secondary waste stream. In turn, the latter process can remove micropollutants without generating secondary wastes, and can also be applied and combined with other treatment methods.

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“…Advanced oxidation processes based on sulfate radical generation have proved to be effective in degrading a wide range of recalcitrant micro contaminants in aqueous solutions, including hormones [19], pharmaceuticals [1,20], herbicides [12] and the decontamination of pool water [21].…”

Section: •−mentioning

confidence: 99%

“…Few works have reported the comparison between sulphate radical (SR) and hydroxyl radical (HR) technologies. Table 1 compares the advantages and disadvantages of various AOPs, while Table 2 compares the kinetic rates of HR and SR. [12] investigated the kinetic rate of six organic compounds under SR and HR oxidation. The SR technology was always 10 times faster than HR systems; except for carbamazepine, for which the kinetic constant was less than seven-fold higher than with HO.…”

Section: Introductionmentioning

confidence: 99%

Sulfate Radical Technologies as Tertiary Treatment for the Removal of Emerging Contaminants from Wastewater

2017

Self Cite

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Abstract:Water scarcity and water pollution is a worldwide problem and has driven research into eco-friendly and low-energy cost efficient remediation. The reuse of wastewater for non-potable purpose after proper treatment is the only sustainable solution to the problem. Advanced oxidation processes (AOP) based on the in-situ generation of hydroxyl radicals have been intensively investigated for this purpose as a treatment step to achieve wastewater reuse. The main degradation mechanism of AOPs is based on the reaction of hydroxyl radicals with dissolved organic matter. However, hydroxyl radicals follow unselective multi-step pathways, limiting their efficiency in complex environmental matrices. To overcome such limitations, AOP treatment, based on generation of sulfate radicals, has been developed and widely investigated. This current mini-review will cover the most recent developments regarding emerging contaminant removal, i.e., organic micropollutants, using sulfate radicals generated by active persulfate or peroxymonosulfate, with a focus on an application to wastewater effluents for possible wastewater reuse.

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Solar photo-Fenton using peroxymonosulfate for organic micropollutants removal from domestic wastewater: Comparison with heterogeneous TiO 2 photocatalysis

Cited by 75 publications

References 25 publications

Efficient degradation of sulfamethoxazole by the Fe(II)/HSO5− process enhanced by hydroxylamine: Efficiency and mechanism

Efficient degradation of sulfamethoxazole by the Fe(II)/HSO5− process enhanced by hydroxylamine: Efficiency and mechanism

Micropollutant Removal from Water by Membrane and Advanced Oxidation Processes—A Review

Sulfate Radical Technologies as Tertiary Treatment for the Removal of Emerging Contaminants from Wastewater

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