Enhanced degradation of Tetrabromobisphenol A in water by a UV/base/persulfate system: Kinetics and intermediates

Guo, Yaoguang; Zhou, Jun; Lou, Xiaoyi; Liu, Renlan; Xiao, Dongxue; Fang, Changling; Wang, Zhaohui; Liu, Jianshe

doi:10.1016/j.cej.2014.05.143

Cited by 109 publications

(32 citation statements)

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“…Different methods of activat-doi: 10.17221/39/2015-SWR ing PS to produce sulfate radical include the use of UV radiation , heat (Tan et al 2012), and transition metals (Liu et al 2012). Recently, chemical oxidation using PS has been a topic of interest (Zhao et al 2013;Guo et al 2014). More particularly, using peroxymonosulfate (PMS) together with transition metals such as Fe 2+ , Cu 2+ , and Co…”

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confidence: 99%

Remediation of fuel oil contaminated soils by activated persulfate in the presence of MnO<sub>2</sub>

Mazloomi¹,

Nasseri²,

Nabizadeh³

et al. 2016

Soil & Water Res.

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Mazloomi S., Nasseri S., Nabizadeh R., Yaghmaeian K., Alimohammadi K., Nazmara S., Mahvi A.H. (2016): Remediation of fuel oil contaminated soils by activated persulfate in the presence of MnO 2 . Soil & Water Res., 11: 131-138.In this study, batch system experiments were carried out for evaluating the capability of persulfate (PS) to remediate fuel oil contaminated soils. Remediation was performed by spiking soil samples with fuel oil and then treating the mixture with sodium PS. Different controlling factors including pH (3, 6, and 9), PS concentrations (50-500 mmol/l), metal activators (ferrous sulfate, magnetite, and MnO 2 ), and temperature (25, 40, and 60°C) were considered. Results proved that PS oxidation is effective in fuel oil degradation. The best PS : Fe 2+ molar ratios were reported 400 : 2 and 250 : 1 for silty clay and loamy sand soil samples, respectively. Lower pH was more of interest in removal of fuel oil by PS oxidation. MnO 2 improved fuel oil degradation when used together with metal activators. The results showed that when MnO 2 was used together with ferrous sulfate and magnetite at acidic condition (pH = 3), the removal efficiencies were the best. Increasing temperature from 25 to 60°C improved the fuel oil degradation in the PS oxidation batch system. The results showed that activating PS by using ferrous sulfate along with MnO 2 at acidic condition in 60°C could increase fuel oil degradation near to 58% in silty clay soil samples, while the degradation rate for loamy sand soil samples in similar conditions was 62%.

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confidence: 99%

Remediation of fuel oil contaminated soils by activated persulfate in the presence of MnO<sub>2</sub>

Mazloomi¹,

Nasseri²,

Nabizadeh³

et al. 2016

Soil & Water Res.

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“…20 Throughout pyrolysis, combustion and degradation of TBBPA and its derivatives, the decomposition products might also lead to a health and environmental risk. 3,19,[31][32][33] Therefore, TBBPA and its derivatives should be investigated carefully to avoid causing serious damage to human health.…”

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confidence: 99%

Silver ion post-column derivatization electrospray ionization mass spectrometry for determination of tetrabromobisphenol A derivatives in water samples

Tian

Liu

et al. 2015

RSC Adv.

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“…one chlorination intermediate (2,3,4,6-tetrachlorophenol (6)) and one derivative of dechlorinated phenol (dibenzo[b,d]furan (7)); (iii) low molecular weight organic acid, i.e. oxalic acid (8). However, hexanoic acid (9) was only identified in photo-sulfite system after 120 min.…”

Section: Intermediates Identificationmentioning

confidence: 99%

“…oxalic acid (8) and hexanoic acid (9), which could be finally mineralized to CO 2 and H 2 O ( Figure 3D). …”

Section: Proposed Reaction Pathwaysmentioning

confidence: 99%

“…Generally, persulfate (PS, S 2 O 8 2-) and peroxymonosulfate (PMS, HSO 5 -) are used as SO 4 •-precursors, both of which can be activated by heat (Antoniou et al, 2010), UV (Antoniou et , and so on, may pose a hazard for secondary pollution. Consequently, it is of great significance to develop low-cost, high efficient and environmental-friendly SO 4…”

Section: Introductionmentioning

confidence: 99%

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Degradation of 2, 4, 6-trichlorophenol in Photo-sulfite System: Mineralization and Pathways

Guo¹,

Wang²,

Li³

et al. 2017

dtmse

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Photo-sulfite reaction is a novel efficient advanced oxidation process for degradation of 2,4,6-trichlorophenol (2,4,6-TCP). In the present work, degradation intermediates and mineralization of 2,4,6-TCP in the photo-sulfite system were examined and the degradation pathways were proposed. Several dechlorinated compounds were identified, as well as some non-chlorinated low molecular weight carboxylic acids. However, the more toxic polychlorophenols and dibenzofuran were also unexpectedly detected, which were thought to decrease the extent of mineralization. The proposed degradation mechanism of 2,4,6-TCP in the photo-sulfite system indicated both de novo formation of polychlorophenols involving the released chlorine atom/chloride ion, and formation of dibenzofuran involving phenol oxidation. The present study might have implications in detoxification of chlorinated organic contaminants by the novel photo-sulfite process.

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Enhanced degradation of Tetrabromobisphenol A in water by a UV/base/persulfate system: Kinetics and intermediates

Cited by 109 publications

References 46 publications

Remediation of fuel oil contaminated soils by activated persulfate in the presence of MnO<sub>2</sub>

Remediation of fuel oil contaminated soils by activated persulfate in the presence of MnO<sub>2</sub>

Silver ion post-column derivatization electrospray ionization mass spectrometry for determination of tetrabromobisphenol A derivatives in water samples

Degradation of 2, 4, 6-trichlorophenol in Photo-sulfite System: Mineralization and Pathways

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