Health and environment
Mousa Aminivafa; Ahmad Allahabadi; Golamreza Moussavi; Hosein Fahimi
Volume 28, Issue 6 , January and February 2022, , Pages 838-849
Abstract
Background and Objectives: Antibiotics, comprising a significant amount of pharmaceutical compounds, are used as human and veterinary treatments . these antibiotics come to appear as contaminantoin soil, surface water, groundwater, and even drinkingwater.Advanced oxidation processes such as catalytic ...
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Background and Objectives: Antibiotics, comprising a significant amount of pharmaceutical compounds, are used as human and veterinary treatments . these antibiotics come to appear as contaminantoin soil, surface water, groundwater, and even drinkingwater.Advanced oxidation processes such as catalytic ozonation are effective to remove the antibiotics form water and wastewaterThe aim of this study was to investigate the efficiency of Catalytic Ozonation Process for tetracycline antibiotics removal from contaminated watersMaterial and method:In this design, an ozonation pilot with a volume of 200 cc was used. In each experiment, the tetracycline solution was poured into the desired concentration, the pH of the sample was adjusted with sulfuric acid and NaOH. At different times of 5 to 30 minutes and different pHs of 2 to 10 ozonation was performed at the dose of 0.8 mg/min. Then, under these conditions, ozonation was performed in the presence of activated carbon catalyst and a sample was discharged from the pilot and analyzed (HPLC) to determine the remaining tetracycline.Results:The results showed that under optimum conditions of pH= 8 and ozone dose of 0.8 mg / min and contact time of 30 minutes ozonation only eliminated 59% of tetracycline and in the same conditions catalytic ozonation with 0.01 g/L carbon. The Calligonum comosum tree was able to remove 100% tetracycline in 30 minutes.Conclusion: The results of this study showed that carbon catalyzed ozonation from wood Calligonum comosum waste can be used as an advanced treatment method.
Anesthesiology
Mahdi Mirhamidi; Atefeh Asadi; Mahbobeh Nematshahi; Mohammad nematshahi; Manijeh Yousefi; Davood Sourosh; Ali Tajabadi; Adeleh Abdolalizadeh; hossein fahimi
Volume 27, Issue 2 , July and August 2020, , Pages 295-302
Abstract
Abstract:Thiopental Sodium is a commonly used drug in anesthesia, but it is not ideal because barbiturate is prohibited in acute and allergic porphyria, and is not recommended in asthmatic and hypovolemic patients. Propofol is the newest drug in anesthesia due to its rapid onset, short duration of action, ...
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Abstract:Thiopental Sodium is a commonly used drug in anesthesia, but it is not ideal because barbiturate is prohibited in acute and allergic porphyria, and is not recommended in asthmatic and hypovolemic patients. Propofol is the newest drug in anesthesia due to its rapid onset, short duration of action, anti-nausea and a feeling comfort after use, its consumption is increasing. It is also safe in porphyry and asthma. This study compares the use of sodium antiproliferative drug propofol to reduce the need for opiate.Analysis Method:This study was conducted on 173 patients admitted to Sabzevar Hospital. Patients were randomly divided into two study and control groups. Anesthesia induction was performed in the study group with propofol 2. 2 kg / mg and with thiopental sodium 5 kg / mg, in both groups, blood pressure and heart beats were measured before and after induction and minutes 1, 5 and 11 after intubation. Within 1-2-3-4 hours after operation with a pain control chart, the intensity of the pain was checked and the data were recorded.Findings:In the propofol group at the 4th hour, 44 individuals feel mild pain, and 9 had moderate, but severe pain was not reported(P=0/44). In the thiopental group at the fourth hour, 53 patients feel mild pain, 11 had moderate and 5 had severe pain.(P=0/44)Conclusion:Propofol increases the threshold of postoperative pain, so it can be a good alternative to thiopental. Keyword: Thiopental, Propofol, Opiate