Degradation of estrone in aqueous solution by photo-Fenton system

Feng, Xiaochi; Ding, Shimin; Tu, Jianfeng; Wu, Feng; Deng, Nansheng

doi:10.1016/j.scitotenv.2004.11.008

Cited by 53 publications

(28 citation statements)

References 21 publications

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“…2005) also showed that estrone was the least reactive toward ozonation among three estrogens tested, including 17b-estradiol, 17a-ethinylestradiol, and estrone. Consistent, lower reactivity of estrone was observed in photo-Fenton-like treatment as well (Feng et al, 2005), although the reason for this relative recalcitrance was not given in either case. Complete conversion and about 15% mineralization (monitored as CO 2 evolution) of 5 mg/L estrone was achieved in 160 min by the photo-Fenton-like treatment with 1.1 mg/L Fe 3+ , 56.6 mg/L H 2 O 2 , and a 250-W metal halide lamp at pH 3.0.…”

Section: Hormones and Oral Contraceptivesmentioning

confidence: 81%

“…Similar to the case of 17b-estradiol, decrease of estrogenic activity upon ozonation of this synthetic estrogen was also demonstrated (Alum et Diethylstilbestrol. Relatively high degradability of diethylstilbestrol, a synthetic estrogen, by photo-Fenton-like process was briefly described (see 17b-Estradiol) (Feng et al, 2005). No further study was found on the degradation of this synthetic estrogen by AOP or ozonation.…”

Section: Hormones and Oral Contraceptivesmentioning

confidence: 99%

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Degradation of Aqueous Pharmaceuticals by Ozonation and Advanced Oxidation Processes: A Review

Ikehata

Naghashkar

El-Din

2006

Ozone: Science & Engineering

859

356

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A vast number of pharmaceuticals have been detected in surface water and drinking water around the world, which indicates their ineffective removal from water and wastewater using conventional treatment technologies. Concerns have been raised over the potential adverse effects of pharmaceuticals on public health and aquatic environment. Among the different treatment options, ozonation and advanced oxidation processes are likely promising for efficient degradation of pharmaceuticals in water and wastewater. Recent progress of advanced oxidation of aqueous pharmaceuticals is reviewed in this paper. The pharmaceuticals and non-therapeutic medical agent of interest include antibiotics, anticonvulsants, antipyretics, beta-blockers, cytostatic drugs, H 2 antagonists, estrogenic hormone and contraceptives, blood lipid regulators, and X-ray contrast media.Keywords Ozone, Advanced Oxidation Processes, Antibiotic, Antipyretic, Anticonvulsants, Blood Lipid Regulator, Beta-blocker, Cytostatic Drug, X-Ray Contrast Media, Estrogens INTRODUCTIONA large amount of numerous prescription and nonprescription drugs of different classes are consumed annually throughout the world. These pharmaceutical compounds include antipyretics, analgesics, blood lipid regulators, antibiotics, antidepressants, chemotherapy agents, and contraceptive drugs. After the administration, these compounds are partially metabolized and excreted in the urine and feces, and subsequently enter into sewage treatment plants where these compounds are treated, along with other organic and inorganic constituents in wastewater. However, it has been shown that some of these pharmaceutical compounds are not completely removed in sewage treatment plants (Halling-Sørensen et al., 1998;Ternes, 1998;Ternes et al., 1999;Heberer, 2002;Boyd et al., 2003). As a result, they have been found in some sewage treatment plant effluents as well as in surface water and groundwater in many countries (Ternes, 1998;Sacher et al., 2001;Soulet et al., 2002;Miao et al., 2004). In addition, non-therapeutic medical agents such as X-ray contrast agents (also known as radiocontrasts) and some veterinary drugs have been also found in the aquatic environment (Ternes and Hirsch, 2000;Drewes et al., 2001;Ku¨mmerer, 2001). Although some of these pharmaceuticals and their metabolites can be partially removed through sorption and biotic or abiotic degradation in the environment, they can eventually reach drinking water sources. Several recent studies have revealed that conventional water treatment processes cannot remove some prescription and non-prescription drugs completely from source waters (Ternes et al., 2002;Stackelberg et al., 2004;Jones et al., 2005a).The frequent occurrence of pharmaceuticals in the aquatic environment as well as in finished drinking water has raised a concern about their potential impact on environmental and public health. Some of the adverse effects caused by pharmaceutical pollution include aquatic toxicity, resistant development in pathogenic bacteria, genotoxicity, and...

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Section: Hormones and Oral Contraceptivesmentioning

confidence: 81%

Section: Hormones and Oral Contraceptivesmentioning

confidence: 99%

Degradation of Aqueous Pharmaceuticals by Ozonation and Advanced Oxidation Processes: A Review

Ikehata

Naghashkar

El-Din

2006

Ozone: Science & Engineering

859

356

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“…As such, direct photolysis on its own is not an effective for removing pharmaceuticals from wastewater. Alternatively, photolysis coupled with Fe (III) and H 2 O 2 or TiO 2 can remove over 98 % of pharmaceuticals including estrogens (Feng et al, 2005;Benotti et al, 2009).…”

Section: Direct Photolysismentioning

confidence: 99%

Treatment options for wastewater effluents from pharmaceutical companies

Deegan

Basha

Nolan

et al. 2011

Int. J. Environ. Sci. Technol.

295

126

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“…The data were then fitted according to the equation R = aC b . 37 The apparent kinetic equations were obtained under the experimental conditions. The results are shown in Table 1.…”

Section: Analysis Of Photodegradation Kineticsmentioning

confidence: 99%

Enhanced photodegradation of bisphenol A in the presence of β‐cyclodextrin under UV light

Wang

Zhang

et al. 2006

J of Chemical Tech & Biotech

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Enhancement of the photodegradation of bisphenol A (BPA) by β-cyclodextrin (β-CD) was investigated under a 30 W UV disinfection lamp (λ max = 254 nm). The photodegradation rate of BPA in aqueous solutions with β-CD was faster than that in aqueous solutions without β-CD; for example, after 50 min of UV irradiation, β-CD had increased the photodegradation efficiency by about 46.5% for 10 mg dm −3 BPA. The photodegradation of 2.5-20 mg dm −3 BPA in aqueous solutions was found to follow pseudo-first-order kinetics. The first-order rate constant showed a 12-fold increase in the presence of β-CD. Factors such as β-CD concentration, pH, BPA initial concentration and organic solvent influencing the photodegradation of BPA were studied and are described in detail. Variations in the pH and electrical conductivity of solutions were observed during the photodegradation process. The enhancement of photodegradation of BPA results mainly from the lower bond energy between some atoms in the BPA molecule after inclusion interaction with β-CD.

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Degradation of estrone in aqueous solution by photo-Fenton system

Cited by 53 publications

References 21 publications

Degradation of Aqueous Pharmaceuticals by Ozonation and Advanced Oxidation Processes: A Review

Degradation of Aqueous Pharmaceuticals by Ozonation and Advanced Oxidation Processes: A Review

Treatment options for wastewater effluents from pharmaceutical companies

Enhanced photodegradation of bisphenol A in the presence of β‐cyclodextrin under UV light

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