Sulfadiazine oxidation by permanganate: Kinetics, mechanistic investigation and toxicity evaluation

Yang, Jun; He, Min; Wu, Tengfei; Ai-ping, Hao; Zhang, Songbai; Chen, Yuandao; Zhou, Siyuan; Zhen, Li-Ying; Wang, Rong; Yuan, Zilin; Deng, Lin

doi:10.1016/j.cej.2018.05.018

Cited by 89 publications

(14 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…erefore, even if they have strong oxidation ability in acidic conditions, their role in oxidation cannot be ignored. e formation of MnO 2 during permanganate oxidation is important for organic compounds' degradation because many studies have shown that MnO 2 could remove many xenobiotic pollutants in laboratory scale [21]:…”

Section: Effect Of Ph On the Removal Of E2mentioning

confidence: 99%

“…Furthermore, an alkaline pH affects the redox potential (E•) of OH• by decreasing it approximately by 18% [21]. Xu et al examined the destruction of 17β-estradiol (E2) by MnO 2 at different pH levels and showed that the efficiency increased with decreasing of pH of MnO 2 activity due to more favorable conditions for the formation of surface precursor complexes [20].…”

Section: Effect Of Ph On the Removal Of E2mentioning

confidence: 99%

See 1 more Smart Citation

Removal of 17β-Estradiol (E2) from Aqueous Solutions Using Potassium Permanganate Combined with Ultraviolet (KMnO4/UV)

Ataee

Fadaei

Mardani

et al. 2020

International Journal of Chemical Engineering

View full text Add to dashboard Cite

17β-Estradiol (E2) has a significant health risk to humans, even at the ng/L level, and is discharged to the aqueous environment through wastewater. Advanced oxidation processes were proposed as an efficient process for the removal of E2. In this study, a combination of ultraviolet-C (UV-C) and KMnO4 was applied for the removal of E2. Results have shown that the removal efficiency of E2 in pH 4 (acidic condition) was 93.80 ± 0.42%. But, removal efficiency in neutral (7) and alkaline (10) conditions was 78.3 ± 2.12% and 84 ± 0.71%, respectively. The effect of Fe+2, Ca+2, Mg+2, Mn+2, and Fe+3 ions (1 mg/L) was investigated in optimized pH (4). Mn+2, Fe+2, and Ca+2 ions enhanced the removal efficiency to 94.8 ± 0.84%, 95.55 ± 0.07%, and 94.7 ± 0.14%, respectively p > 0.05 , while Mg+2 and Fe+3 ions decreased the removal efficiency significantly to 76.15 ± 1% and 83.91 ± 0.3% p < 0.05 . The efficiency of E2 removal in the presence of 5 mg/L of PAC reduced significantly to 85 ± 4.24% p < 0.05 . Also, humic substances like humic acid, fulvic acid, and a combination of them could enhance the efficiency to 99.87 ± 0.01%, 99.9 ± 0.06%, and 99.93 ± 0.014%, respectively p > 0.05 . The result indicates that the rate of oxidation of E2 is related to the second exponent of the initial concentration of E2 for optimum pH and the presence of all ions. But, in the presence of humic substances, the first-order kinetic reaction was best applicable in describing oxidation of E2. Removal of chemical oxygen demand for E2 after 120 minutes’ of contact time at optimum pH (86 ± 4.2%) demonstrated mineralization of these compounds at acceptable levels. Results presented that the UV-C/KMnO4 process is efficient for the removal of hormones from the aqueous solution.

show abstract

Section: Effect Of Ph On the Removal Of E2mentioning

confidence: 99%

Section: Effect Of Ph On the Removal Of E2mentioning

confidence: 99%

Removal of 17β-Estradiol (E2) from Aqueous Solutions Using Potassium Permanganate Combined with Ultraviolet (KMnO4/UV)

Ataee

Fadaei

Mardani

et al. 2020

International Journal of Chemical Engineering

View full text Add to dashboard Cite

show abstract

“…Permanganate is an effective oxidant for some chemicals and drugs, existing in wastewaters such as triclosan (Chen et al 2016;Jiang et al 2009), sulfamethoxazole (Gong and Chu 2018), bisphenol A (Zhang et al 2013), sulfadiazine (Yang et al 2018), chlorophene (Xu et al 2018) and tetrabromobisphenol A (Pang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Treatability of Biodiesel Wastewaters By Using KMnO4 And KMnO4/O3 Processes And Kinetic Analysis

Tanatti

2021

Preprint

View full text Add to dashboard Cite

The purpose of this study is to investigate the treatability of electrocoagulated biodiesel wastewater (ECBD) by potassium permanganate (KMnO4) and potassium permanganate/ozone (KMnO4/O3) processes. The ECBD removal efficiencies of both combined method and KMnO4 methods were compared and the KMnO4/O3 process gave better results than the KMnO4 process. For the ECBD removal efficiencies, the experimental parameters including pH, potassium permanganate dose, ozone dose and reaction time parameters were optimized by changing the one parameter at a time. As a result of 6 h of KMnO4 oxidation, 91.74% of COD and 95.93% of MeOH removal was achieved under the optimum conditions (pH 2, 5 g/L KMnO4 dose). However, under optimum conditions (pH 13, 2 g/L KMnO4 dose, 3000 mg/L O3 dose, 6 h reaction time), the COD and MeOH removal efficiencies have been obtained for KMnO4/O3 as 97.79% and 98.30%, respectively. The second order kinetic model has been found to be the most suitable model for both processes and the regression coefficients (R2) has been found as 0.999 and 0.999 for KMnO4 and KMnO4/O3, respectively. The reaction rate constants (k) have been also calculated as 6x10-5 L/mg.min and 1.63x10-4 L/mg.min for COD and MeOH in KMnO4 oxidation, respectively. Furthermore, the reaction rate constants (k) have been also calculated as 6x10-5 L/mg.min and 1.6x10-4 L/mg.min for COD and MeOH in KMnO4/O3 oxidation, respectively.

show abstract

“…This raises public health concerns even though most Nanomaterials 2020, 10, 180; doi:10.3390/nano10010180 www.mdpi.com/journal/nanomaterials Nanomaterials 2020, 10, 180 2 of 11 of the detected pharmaceuticals in the environment are at low sub-therapeutic concentrations (e.g., 110~610 ng•L −1 ) [2,3]. Pharmaceutical residuals may be released from various sources such as disposed medicines [4], urine [5], contaminaed soil [6], and industrial wastewater [7]. Among these sources, human urine releases pharmaceuticals with concentrations at 2-3 orders of magnitude higher than other municipal wastewater streams that enter WWTPs [8].…”

Section: Introductionmentioning

confidence: 99%

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

Sun

Yao

et al. 2020

Nanomaterials

View full text Add to dashboard Cite

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.

show abstract

Sulfadiazine oxidation by permanganate: Kinetics, mechanistic investigation and toxicity evaluation

Cited by 89 publications

References 56 publications

Removal of 17β-Estradiol (E2) from Aqueous Solutions Using Potassium Permanganate Combined with Ultraviolet (KMnO4/UV)

Removal of 17β-Estradiol (E2) from Aqueous Solutions Using Potassium Permanganate Combined with Ultraviolet (KMnO4/UV)

Treatability of Biodiesel Wastewaters By Using KMnO4 And KMnO4/O3 Processes And Kinetic Analysis

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

Contact Info

Product

Resources

About