Simultaneous degradation of cephalexin, ciprofloxacin, and clarithromycin from medical laboratory wastewater by electro-Fenton process

2020 ◽  
pp. 104666
Author(s):  
Irfan Basturk ◽  
Gamze Varank ◽  
Selda Murat-Hocaoglu ◽  
Senem Yazici-Guvenc ◽  
Emine Can-Güven ◽  
...  
Keyword(s):  
Medical Laboratory ◽  
Fenton Process ◽  
Simultaneous Degradation

Simultaneous degradation of pharmaceuticals by classic and modified photo-Fenton process

2018 ◽  
Vol 6 (1) ◽  
pp. 1086-1092 ◽  
Author(s):  
Vinícius A.B. Paiva ◽  
Cleiseano E.S. Paniagua ◽  
Ivo Amildon Ricardo ◽  
Bárbara R. Gonçalves ◽  
Stefanie Pereira Martins ◽  
...  
Keyword(s):  
Fenton Process ◽  
Simultaneous Degradation

Simultaneous degradation of phenol and paracetamol during photo-Fenton process: Design and optimization

2015 ◽  
Vol 47 ◽  
pp. 190-196 ◽  
Author(s):  
Leila Roshanfekr Rad ◽  
Mohammad Irani ◽  
Faten divsar ◽  
Hamed Pourahmad ◽  
Mohammad Sadegh Sayyafan ◽  
...  
Keyword(s):  
Process Design ◽  
Fenton Process ◽  
Design And Optimization ◽  
Simultaneous Degradation

scholarly journals An Efficient Simultaneous Degradation of Sulfamethoxazole and Trimethoprim by Photoelectro-Fenton Process Under Non-Modified pH Using a Natural Citric Acid Source: Study of Biodegradability, Ecotoxicity and Antibacterial Activity

2021 ◽  
Author(s):  
Carlos Andrés Delgado-Vargas ◽  
Paula Andrea Espinosa-Barrera ◽  
Paola Villegas-Guzman ◽  
Diana Martínez-Pachón ◽  
Alejandro Moncayo-Lasso
Keyword(s):  
Antibacterial Activity ◽  
Citric Acid ◽  
Fenton Reaction ◽  
Degradation Products ◽  
Fenton Process ◽  
Organic Residues ◽  
Iron Form ◽  
Source Study ◽  
Fenton System ◽  
Simultaneous Degradation

Abstract In this work, the photoelectro-Fenton system was evaluated as an alternative for the degradation of sulfamethoxazole and trimethoprim at unmodified pH by using citric acid present in extracts from a natural source as organic residues (orange and lemon peels). The addition of natural citric acid showed an efficient degradation of the antibiotics similarly to the efficiency by adding commercial reagent citric acid. The observed high efficiencies and rate constants are attributed to the increment of ferrous ion in the solution due to the fast conversion of iron form its ferric to ferrous state leading to the Fenton reaction and so increasing the hydroxyl radicals production. Although the addition of citric acid present in the extracts slightly increases the organic matter of the solutions, the degradation of the antibiotics was achieved simultaneously and efficiently, converting the photoelectro-Fenton process with the addition of natural citric acid into an alternative ecological system and sustainable for water contaminated with pharmaceutics. Additionally, the high biodegradable character and low ecotoxicity of the treated solutions were determined by a modified Zahn Wellens test and a bioassay with D. magna, respectively. Finally, simultaneous degradation of sulfamethoxazole and trimethoprim was reached after only 45 min of treatment in which the antibacterial activity was completely eliminated, suggesting that degradation products do not represent any environmental risk nor human health.

Quality management in medical laboratories

2010 ◽  
Vol 30 (02) ◽  
pp. 55-62
Author(s):  
M. Fritzer-Szekeres
Keyword(s):  
Quality Management ◽  
Medical Laboratory ◽  
Management Systems ◽  
The European Union ◽  
Quality Management Systems ◽  
Iso 17025 ◽  
Iso 15189 ◽  
Medical Laboratories ◽  
Systems Quality ◽  
Standard Iso 15189

SummaryDuring the 20th century understanding for quality has changed and international and national requirements for quality have been published. Therefore also medical branches started to establish quality management systems. Quality assurance has always been important for medical laboratories. Certification according to the standard ISO 9001 and accreditation according to the standard ISO 17025 have been the proof of fulfilling quality requirements. The relatively new standard ISO 15189 is the first standard for medical laboratories. This standard includes technical and management requirements for the medical laboratory. The main focus is the proof of competence within the personnel. As this standard is accepted throughout the European Union an increase in accreditations of medical laboratories is predictable.

POSTOPERATIVE COMPLIANCE OF BARIATRIC SURGERY PATIENTS REGARDING THE ASSESSMENT OF SERUM LEPTIN LEVELS AND INSULIN RESISTANCE

2019 ◽  
Vol 49 (1/2019) ◽  
Keyword(s):  
Insulin Resistance ◽  
Bariatric Surgery ◽  
Serum Levels ◽  
Medical Laboratory ◽  
Leptin Resistance ◽  
Obese Patients ◽  
Laboratory Assessment ◽  
Serum Leptin ◽  
Before And After ◽  
Bariatric Patients

Background and aims: Overweight and obese patients who undergo bariatric surgery require a rigorous clinical and paraclinical assessment both before and after the surgery at 3, 6, and 12 months.The present study aims the assessment of serum leptin levels and insulin resistance status in compliant bariatric patients to scheduled medical laboratory assessment at 6 months after surgery. Material and Method: The study included 109 eligible patients selected for bariatric surgery, 48 of whom attended the scheduled visit at 6 months after the surgery. Laboratory assessing regarded the insulin resistance by determining before meal the serum levels of leptin, glucose and insulin, as well as HOMA 1 and HOMA 2 indexes. Results: Patients who underwent bariatric treatment experienced a significant decrease in insulin resistance status. A higher percentage in the preoperative group was recorded in women, feature which was also recorded in the postoperative group that attended the scheduled visit at 6 months after surgery. Age is also an important factor that significantly influences the behavioral adherence to postoperative visits. Conclusions: Insulin resistance status improved significantly in 6 months after bariatric surgery among the fully compliant patients. The percentage of attendance at scheduled visits is higher among women, and decreases with age. Keywords: obesity surgery, leptin resistance, insulin resistance, HOMA index, compliance

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