Volume 10, Issue 2 (10-2018)
2018, 10(2): 21-30 |
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Sayyedi A, Rahimi S, Rahmani A, Askari G, Hatami S E, Hatami S T. The Effect of Peridates Activated with Nano Particles of Magnesium Oxide in The Presence of Ultraviolet Waves for the Removal of 2-Chlorophenol from Aqueous Solutions. North Khorasan University of Medical Sciences 2018; 10 (2) :21-30
URL: http://journal.nkums.ac.ir/article-1-1515-en.html
URL: http://journal.nkums.ac.ir/article-1-1515-en.html
Abolmottaleb Sayyedi1 
, Shoeib Rahimi2 , Alireza Rahmani1 , Ghorban Askari1 , Seyyed Esmaeil Hatami3 , Seyyedeh Tayebeh Hatami * 
4
, Shoeib Rahimi2 , Alireza Rahmani1 , Ghorban Askari1 , Seyyed Esmaeil Hatami3 , Seyyedeh Tayebeh Hatami * 4
1- Environmental Health Engineering Department, Hamadan University of medical science, Hamadan, Iran
2- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
3- Addiction and Behavioral Sciences Research Center, North khorasan University of Medical Sciences, Bojnurd, Iran
4- MSc in Environmental Health Engineering, Bojnurd Health Center, North Khorasan University of Medical Sciences, Bojnurd, Iran , tayebeh.hatami@yahoo.com
2- Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
3- Addiction and Behavioral Sciences Research Center, North khorasan University of Medical Sciences, Bojnurd, Iran
4- MSc in Environmental Health Engineering, Bojnurd Health Center, North Khorasan University of Medical Sciences, Bojnurd, Iran , tayebeh.hatami@yahoo.com
Abstract: (3745 Views)
Introduction: 2- Chlorophenols are toxic and hazardous pollutants in industrial effluents and sewage. Due to their toxicity and instability, these compounds are known as pollutants with a high environmental profile, even at low concentrations. This study aimed to determine the efficiency of activated peridates with magnesium oxide nanoparticles in the presence of ultraviolet waves for removing 2-chlorophenol from aqueous solutions.
Methods: In this experimental study, the photochemical analysis of 2-chlorophenol was performed in a 2.5-liter Discontinuous cylindrical reactor. A 55-watt low-pressure mercury lamp was used to produce ultraviolet waves with a wavelength of 254 nm. The parameters affecting the absorption process (pH 3 to 11), the dose of nanoparticles (0 to 1.5 mmol/L), 2-chlorophenol concentration (0.22 to 1.76 mmol / L), Peridat concentration (0 to 4 mmol/L), and contact time (0 to 60 minutes) were investigated.
Results: In the combined process of peridate activation with magnesium oxide nanoparticles in the presence of ultraviolet light (UV/PI/MgO), the maximum removal rate of 2-chlorophenol was at pH 7, the concentration of peridates was 4 milliules per liter, the concentration of nano magnesium oxide particle 1 milliliter Mole per liter and initial regimen of 0.44 mM / L of 2-chlorophenol were obtained. In these conditions, about 85% of 2-chlorophenol was removed passing over 60 minutes. . Also, by increasing the initial concentration of adsorbent and adsorbate, the efficiency of removing 2-chlorophenol decreased.
Conclusions: Magnesium oxide nanoparticles are suitable for the removal of 2-chlorophenol and are efficient. The pH value equaling 7, the peridate concentration of 4 mmol/L, magnesium oxide nanoparticles with 0.44 mmol/L concentration and a 60 minute time are the optimum states by 2-chlorophenol.
Methods: In this experimental study, the photochemical analysis of 2-chlorophenol was performed in a 2.5-liter Discontinuous cylindrical reactor. A 55-watt low-pressure mercury lamp was used to produce ultraviolet waves with a wavelength of 254 nm. The parameters affecting the absorption process (pH 3 to 11), the dose of nanoparticles (0 to 1.5 mmol/L), 2-chlorophenol concentration (0.22 to 1.76 mmol / L), Peridat concentration (0 to 4 mmol/L), and contact time (0 to 60 minutes) were investigated.
Results: In the combined process of peridate activation with magnesium oxide nanoparticles in the presence of ultraviolet light (UV/PI/MgO), the maximum removal rate of 2-chlorophenol was at pH 7, the concentration of peridates was 4 milliules per liter, the concentration of nano magnesium oxide particle 1 milliliter Mole per liter and initial regimen of 0.44 mM / L of 2-chlorophenol were obtained. In these conditions, about 85% of 2-chlorophenol was removed passing over 60 minutes. . Also, by increasing the initial concentration of adsorbent and adsorbate, the efficiency of removing 2-chlorophenol decreased.
Conclusions: Magnesium oxide nanoparticles are suitable for the removal of 2-chlorophenol and are efficient. The pH value equaling 7, the peridate concentration of 4 mmol/L, magnesium oxide nanoparticles with 0.44 mmol/L concentration and a 60 minute time are the optimum states by 2-chlorophenol.
Type of Study: Orginal Research |
Subject:
Public Health
Received: 2017/09/27 | Accepted: 2018/05/8 | Published: 2018/09/26
Received: 2017/09/27 | Accepted: 2018/05/8 | Published: 2018/09/26
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