A review on Fenton process for organic wastewater treatment based on optimization perspective

Zhang, Menghui; Dong, Hui; Zhao, Liang; Wang, Dexi; Meng, Di

doi:10.1016/j.scitotenv.2019.03.180

Cited by 846 publications

(343 citation statements)

References 137 publications

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“…Applying our filtration and experimental conditions, we determined that Je (5.89 × 10 −6 e − •s −1 ) was much smaller than JP (1.26 ± 0.63 × 10 15 e − •s −1 , assuming η = 15%), which explains why the background pollutants did not significantly affect the removal rates of SMX. This result also agrees with the previous studies showing that TOC and ammonia could be efficiently oxidized by photo-Fenton reactions [39,40].…”

Section: Assessment Of Smx Removal In Toilet Wastewatersupporting

confidence: 93%

Enhanced Degradation of Sulfamethoxazole (SMX) in Toilet Wastewater by Photo-Fenton Reactive Membrane Filtration

Sun

Yao

et al. 2020

Nanomaterials

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Pharmaceutical residuals are increasingly detected in natural waters, which made great threat to the health of the public. This study evaluated the utility of the photo-Fenton ceramic membrane filtration toward the removal and degradation of sulfamethoxazole (SMX) as a model recalcitrant micropollutant. The photo-Fenton catalyst Goethite (α-FeOOH) was coated on planar ceramic membranes as we reported previously. The removal of SMX in both simulated and real toilet wastewater were assessed by filtering the feed solutions with/without H2O2 and UV irradiation. The SMX degradation rate reached 87% and 92% respectively in the presence of UV/H2O2 for the original toilet wastewater (0.8 ± 0.05 ppb) and toilet wastewater with a spiked SMX concentration of 100 ppb. The mineralization and degradation by-products were both assessed under different degradation conditions to achieve deeper insight into the degradation mechanisms during this photo-Fenton reactive membrane filtration. Results showed that a negligible removal rate (e.g., 3%) of SMX was obtained when only filtering the feed solution through uncoated or catalyst-coated membranes. However, the removal rates of SMX were significantly increased to 67% (no H2O2) and 90% (with H2O2) under UV irradiation, respectively, confirming that photo-Fenton reactions played the key role in the degradation/mineralization process. The highest apparent quantum yield (AQY) reached up to approximately 27% when the H2O2 was 10 mmol·L−1 and UV254 intensity was 100 μW·cm−2. This study lays the groundwork for reactive membrane filtration to tackle the issues from micropollution.

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Section: Assessment Of Smx Removal In Toilet Wastewatersupporting

confidence: 93%

Enhanced Degradation of Sulfamethoxazole (SMX) in Toilet Wastewater by Photo-Fenton Reactive Membrane Filtration

Sun

Yao

et al. 2020

Nanomaterials

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“…The ferrous is oxidized to ferric ions and catalyses the decomposition of hydrogen peroxide into hydroxyl radicals (reaction (8)). [83][84][85] H 2 O 2 + Fe 2+ / Fe 3+ + OH À + HOc…”

Section: Synergetic Effect Of Ultrasound and Other Degradation Technomentioning

confidence: 99%

“…83 This reaction which is called Fenton-like reaction and slower about 6000 times than Fenton reaction, leads Fe 2+ regeneration in an efficient cyclic mechanism. 84 In Fenton like reaction, besides ferrous ion regeneration, hydroperoxyl radicals ðHO 2 Þ are produced which can also attack pesticides, but they are less sensitive than hydroxyl radicals. Reactions (9)-(12) represent the rate limiting steps in the Fenton chemistry since H 2 O 2 is consumed and Fe 2+ are regenerated from Fe 3+ through these reactions.…”

Section: Synergetic Effect Of Ultrasound and Other Degradation Technomentioning

confidence: 99%

Sonochemical degradation of pesticides in aqueous solution: investigation on the influence of operating parameters and degradation pathway – a systematic review

2020

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“…More traditional catalysts that produced a porous biochar originated from Myriophyllum aquaticum tailored with Fe3O4 were described by Fu et al [175]. This catalyst induced the activation of peroxymonosulfate during p- Fenton and Fenton-like processes are the more effective processes based on the activation of peroxides in mild conditions by using cheap metal precursors [170] and more stable oxidant agents such as persulfates [171]. Huang et al [172] proved the significant role of biomass types on the formation of persistent free radicals during Fenton and Fenton-like process.…”

Section: Organic Pollutants Removalmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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A review on Fenton process for organic wastewater treatment based on optimization perspective

Cited by 846 publications

References 137 publications

Enhanced Degradation of Sulfamethoxazole (SMX) in Toilet Wastewater by Photo-Fenton Reactive Membrane Filtration

Enhanced Degradation of Sulfamethoxazole (SMX) in Toilet Wastewater by Photo-Fenton Reactive Membrane Filtration

Sonochemical degradation of pesticides in aqueous solution: investigation on the influence of operating parameters and degradation pathway – a systematic review

A Review of Non-Soil Biochar Applications

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