Photocatalytic Removal of Cephalexin by UV/ZnO Process from Aqueous Solutions
Background and Objectives: Conventional wastewater treatment plants are not able to remove effective drugs, such as antibiotics, so eliminating remaining antibiotics from the environment is important. The purpose of this study was to evaluate the efficacy of UV / ZnO photocatalytic process in removi...
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| Format: | Article |
| Language: | fas |
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Alborz University of Medical Sciences
2018-03-01
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| Series: | Muhandisī-i Bihdāsht-i Muḥīṭ |
| Subjects: | |
| Online Access: | http://jehe.abzums.ac.ir/browse.php?a_code=A-10-25-68&slc_lang=en&sid=1 |
| _version_ | 1818925672980021248 |
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| author | Shahin Adhami Mahdi Fazlzadeh Sadegh Hazrati |
| author_facet | Shahin Adhami Mahdi Fazlzadeh Sadegh Hazrati |
| author_sort | Shahin Adhami |
| collection | DOAJ |
| description | Background and Objectives: Conventional wastewater treatment plants are not able to remove effective drugs, such as antibiotics, so eliminating remaining antibiotics from the environment is important. The purpose of this study was to evaluate the efficacy of UV / ZnO photocatalytic process in removing antibiotic cephalexin from aqueous solutions.
Materials and Methods: This is an experimental-applied study that was performed on a batch scale in a laboratory scale. The variables studied in this study included the initial pH of the solution (11, 9, 7, 5, 3), the dose of nanoparticles (1, 75/0, 0.5, 0.25, 0.1, 0.05 grams per liter), Reaction time (60-50-40-30-20-15-55 minutes) and initial concentration of pollutant (100, 50, 25, 10 mg / l) were investigated. Measurement of cephalexin in samples was performed using HPLC apparatus.
Results: The results showed that by decreasing pH and reducing the initial concentration of cephalexin and increasing contact time, process efficiency increased. But with increasing nanoparticle dosages up to 0.1 grams per liter, the process efficiency increases and more than this amount is reduced.
Conclusion: The results of this study showed that the use of UV / ZnO photocatalytic process in removing humic acid from aqueous solutions can be used as an effective method for cephalexin from aqueous solutions. |
| first_indexed | 2024-12-20T02:44:57Z |
| format | Article |
| id | doaj.art-ac405d7437fb44f296b72f45b49735f2 |
| institution | Directory Open Access Journal |
| issn | 2383-3211 |
| language | fas |
| last_indexed | 2024-12-20T02:44:57Z |
| publishDate | 2018-03-01 |
| publisher | Alborz University of Medical Sciences |
| record_format | Article |
| series | Muhandisī-i Bihdāsht-i Muḥīṭ |
| spelling | doaj.art-ac405d7437fb44f296b72f45b49735f22022-12-21T19:56:12ZfasAlborz University of Medical SciencesMuhandisī-i Bihdāsht-i Muḥīṭ2383-32112018-03-0152173183Photocatalytic Removal of Cephalexin by UV/ZnO Process from Aqueous SolutionsShahin Adhami0Mahdi Fazlzadeh1Sadegh Hazrati2 Student of MSc, Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran . Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran . Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran Background and Objectives: Conventional wastewater treatment plants are not able to remove effective drugs, such as antibiotics, so eliminating remaining antibiotics from the environment is important. The purpose of this study was to evaluate the efficacy of UV / ZnO photocatalytic process in removing antibiotic cephalexin from aqueous solutions. Materials and Methods: This is an experimental-applied study that was performed on a batch scale in a laboratory scale. The variables studied in this study included the initial pH of the solution (11, 9, 7, 5, 3), the dose of nanoparticles (1, 75/0, 0.5, 0.25, 0.1, 0.05 grams per liter), Reaction time (60-50-40-30-20-15-55 minutes) and initial concentration of pollutant (100, 50, 25, 10 mg / l) were investigated. Measurement of cephalexin in samples was performed using HPLC apparatus. Results: The results showed that by decreasing pH and reducing the initial concentration of cephalexin and increasing contact time, process efficiency increased. But with increasing nanoparticle dosages up to 0.1 grams per liter, the process efficiency increases and more than this amount is reduced. Conclusion: The results of this study showed that the use of UV / ZnO photocatalytic process in removing humic acid from aqueous solutions can be used as an effective method for cephalexin from aqueous solutions.http://jehe.abzums.ac.ir/browse.php?a_code=A-10-25-68&slc_lang=en&sid=1Cephalexin Photocatalytic Zinc oxide Ultraviolet ray |
| spellingShingle | Shahin Adhami Mahdi Fazlzadeh Sadegh Hazrati Photocatalytic Removal of Cephalexin by UV/ZnO Process from Aqueous Solutions Muhandisī-i Bihdāsht-i Muḥīṭ Cephalexin Photocatalytic Zinc oxide Ultraviolet ray |
| title | Photocatalytic Removal of Cephalexin by UV/ZnO
Process from Aqueous Solutions |
| title_full | Photocatalytic Removal of Cephalexin by UV/ZnO
Process from Aqueous Solutions |
| title_fullStr | Photocatalytic Removal of Cephalexin by UV/ZnO
Process from Aqueous Solutions |
| title_full_unstemmed | Photocatalytic Removal of Cephalexin by UV/ZnO
Process from Aqueous Solutions |
| title_short | Photocatalytic Removal of Cephalexin by UV/ZnO
Process from Aqueous Solutions |
| title_sort | photocatalytic removal of cephalexin by uv zno process from aqueous solutions |
| topic | Cephalexin Photocatalytic Zinc oxide Ultraviolet ray |
| url | http://jehe.abzums.ac.ir/browse.php?a_code=A-10-25-68&slc_lang=en&sid=1 |
| work_keys_str_mv | AT shahinadhami photocatalyticremovalofcephalexinbyuvznoprocessfromaqueoussolutions AT mahdifazlzadeh photocatalyticremovalofcephalexinbyuvznoprocessfromaqueoussolutions AT sadeghhazrati photocatalyticremovalofcephalexinbyuvznoprocessfromaqueoussolutions |