Removal of pharmaceutical compounds, nitroimidazoles, from waters by using the ozone/carbon system

Sánchez‐Polo, M.; Rivera‐Utrilla, J.; Prados-Joya, G.; Ferro-Garcı́a, M.A.; Bautista-Toledo, I.

doi:10.1016/j.watres.2008.05.034

Cited by 112 publications

(45 citation statements)

References 33 publications

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“…The rate constant of an organic compound reacting with ozone is usually determined by batch experiments with addition of excess tert-butyl alcohol (t-BuOH) to inhibit potential Å OH reactions (Acero et al, 2001;Sánchez-Polo et al, 2008). From the relationship between the CT (concentration Â time) value of ozone and the logarithmic decrease of a target compound, the rate constant can be derived.…”

Section: Determination Of Reaction Rate Constantsmentioning

confidence: 99%

“…pCBA was selected as a reference compound because it reacts slowly with molecular ozone but very quickly with Å OH (k O 3 ;pCBA ¼ 0:15 M À1 s À1 , kÅ OH;pCBA ¼ 4:2 Â 10 9 M À1 s À1 ) (Sánchez-Polo et al, 2008). Ozone, produced from dried oxygen gas with an ozone generator (3S-A3G, Tonglin, Beijing), was continuously bubbled into a cylindrical glass reactor containing 500 mL ultrapure water (10 mM phosphate buffer, pH 7.5).…”

Section: Determination Of Reaction Rate Constantsmentioning

confidence: 99%

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Kinetics and mechanism for omethoate degradation by catalytic ozonation with Fe(III)-loaded activated carbon in water

2013

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Section: Determination Of Reaction Rate Constantsmentioning

confidence: 99%

Section: Determination Of Reaction Rate Constantsmentioning

confidence: 99%

Kinetics and mechanism for omethoate degradation by catalytic ozonation with Fe(III)-loaded activated carbon in water

2013

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“…they may create resistance in bacteria populations, and thus cause antibiotics to become ineffective in treating different diseases (26). Antibiotics and pharmaceutical compounds have been widely used to treat infectious bacterial diseases that are often not removed using conventional wastewater treatment processes.…”

Section: Discussionmentioning

confidence: 99%

Metronidazole Removal Methods from Aquatic Media: A Systematic Review

Nasseh

Khodadadi

Khosravi

et al. 2016

Ann Mil Health Sci Res

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Context: Pharmaceutical products, particularly antibiotics, are new emerging contaminants that have caused much concern due to their accumulation in the environment and their other various adverse effects. Among such pharmaceutical products, metronidazole (MTN) is an important pollutant in the environment due to its broad use and resistance to biological breakdown. As a result, the need to control and eliminate this pollutant must be addressed more than ever. In this study, in addition to providing the most widely used methods for eliminating MTN antibiotic from the contaminated waste, the advantages and disadvantages of each method have also been analyzed. Evidence Acquisition: This descriptive-interpretive study was conducted using documents and library resources. Results: There are several methods to remove antibiotics from aqueous environments, each having disadvantages along with advantages, which limit their application. Meanwhile, nanotechnology with its new solutions suggests that nano-sized substances can lead to more effective, cheaper, and more durable water treatment technologies, which can satisfy the needs of developing countries. Conclusions: According to the results of this investigation, it appears that in recent years, nanotechnology and advanced oxidation process, which are based on the production of free and active radicals, especially OH0, have been effective because of their high oxidation power.

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“…The removal of such pollutants are therefore of paramount importance. Several separation technologies, e.g., adsorption, photo-degradation, ozonation, and biological methods etc., have been suggested for the removal of nitroimidazoles from aqueous solutions [10][11][12][13][14][15][16][17][18][19][20][21][22]. However, the choice of the most suitable technology depends upon its cost-effectiveness for large-scale applications.…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of SiC Nanoparticles for the Efficient Adsorptive Removal of Nitroimidazole Antibiotics from Aqueous Solution

et al. 2017

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Abstract:Environmental pollution caused by the improper disposal of pharmaceuticals is a matter of global concern, and warrants immediate attention. Of particular concern is the aquatic contamination caused by the increasing use of antibiotics, which could give rise to superbugs. While researchers have mainly focused on improving the adsorption capacity of mostly activated carbon-based adsorbents, we have developed a non-conventional adsorbent (SiC nanoparticles) in the present work for the adsorptive removal of four different nitroimidazole antibiotics, namely metronidazole (MNZ), dimetridazole (DMZ), ronidazole (RNZ), and tinidazole (TNZ). In addition to the unique properties which are inherent to SiC, the present adsorbent not only possesses a high adsorption capacity, but also shows one of the highest adsorption rates; both of which are prerequisites for an efficient and cost-effective adsorption-based separation technology. Silicon carbide (SiC) nanoparticles, synthesized by a microwave-assisted method, were thoroughly characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and the Brunauer-Emmett-Teller method. The adsorption isotherm data were accurately described by the Langmuir isotherm model. On the other hand, the adsorption kinetics, closely represented by the pseudo-second order kinetic model, were faster than most previously reported adsorbents. The reaction rate constants were 0.0089, 0.0079, 0.0072, and 0.0055 g/(mg min), for MNZ, DMZ, RNZ, and TNZ, respectively.

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Removal of pharmaceutical compounds, nitroimidazoles, from waters by using the ozone/carbon system

Cited by 112 publications

References 33 publications

Kinetics and mechanism for omethoate degradation by catalytic ozonation with Fe(III)-loaded activated carbon in water

Kinetics and mechanism for omethoate degradation by catalytic ozonation with Fe(III)-loaded activated carbon in water

Metronidazole Removal Methods from Aquatic Media: A Systematic Review

Microwave-Assisted Synthesis of SiC Nanoparticles for the Efficient Adsorptive Removal of Nitroimidazole Antibiotics from Aqueous Solution

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