Application of advanced oxidation process (H2O2/UV) for removal of organic materials from pharmaceutical industry effluent

Azizi, Esmaeil; Fazlzadeh, Mehdi; Ghayebzadeh, Mehdi; Hemati, Lida; Beikmohammadi, Masoumeh; Ghaffari, Hamid Reza; Zakeri, Hamid Reza; Sharafi, Kiomars

doi:10.37190/epe170115

Cited by 17 publications

(23 citation statements)

References 23 publications

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“…Currently, a wide variety of pharmaceutical products is very common in urban and factories wastewater (Azizi et al, 2017;Khetan and Collins, 2007;Martinez, 2009). The formation of antibiotic compounds in aquatic environments is an emerging subject, whose *Corresponding author: Yousef Poureshgh, E-mail: yusef.poureshg@gmail.com.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Shokoohi

Samadi

Amani

et al. 2018

Braz. J. Chem. Eng.

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Antibiotics are used globally and, after use, they enter water sources in different ways. The presence of these compounds in the environment has created concerns about the toxicity of aquatic organisms and the emergence of antibiotic-resistant bacteria. The purpose of this study was to remove cefalexin from aqueous solutions by enzymatic oxidation using response surface methodology (RSM). For this purpose, batch experiments were performed to evaluate the effect of independent variables, including temperature, pH, contact time, enzyme activity, HBT mediator concentration, and antibiotic concentration. The residual cefalexin concentration was determined by HPLC. The Box-Behnken design of experiments and RSM were used to evaluate the overlap between variables. The results showed that the oxidation efficiency increased with increasing contact time and enzyme activity and decreasing antibiotic concentration. The highest and lowest removal percentages were 90.5% and 5.54%, respectively. Considering the value of R 2 (0.946) and adjusted R 2 (0.95) in the RSM model, one can state that the selected model is suitable for data analysis. Finally, the second-order polynomial analysis and the quadratic model were used as the best model for finding the relationship between the main variables and cefalexin removal efficiency. The Box-Behnken Design model can be effective for optimizing enzymatic oxidation of cefalexin, and laccase can be used to remove cefalexin.

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Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Shokoohi

Samadi

Amani

et al. 2018

Braz. J. Chem. Eng.

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“…The experiments of measuring 13 chemical parameters were divided into two general categories including device-based experiments and Titrimetry tests. They were also carried out according to the reference book for water and wastewater testing and other valid references [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] .…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Data for factor analysis of hydro-geochemical characteristics of groundwater resources in Iranshahr

et al. 2018

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Detection of Hydrogeological and Hydro-geochemical changes affecting the quality of aquifer water is very important. The aim of this study was to determine the factor analysis of the hydro-geochemical characteristics of Iranshahr underground water resources during the warm and cool seasons. In this study, 248 samples (two-time repetitions) of ground water resources were provided at first by cluster-random sampling method during 2017 in the villages of Iranshahr city. After transferring the samples to the laboratory, concentrations of 13 important chemical parameters in those samples were determined according to o water and wastewater standard methods. The results of this study indicated that 45.45% and 55.55% of the correlation between parameters has had a significant decrease and increase, respectively with the transition from warm seasons to cold seasons. According to the factor analysis method, three factors of land hydro-geochemical processes, supplying resources by surface water and sewage as well as human activities have been identified as influential on the chemical composition of these resources.The highest growth rate of 0.37 was observed between phosphate and nitrate ions while the lowest trend of − 0.33 was seen between fluoride ion and calcium as well as chloride ions. Also, a significant increase in the correlation between magnesium ion and nitrate ion from warm seasons to cold seasons indicates the high seasonal impact of the relation between these two parameters.

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“…The number of samples in rural, urban and private resources was 1851, 365 and 4834, respectively. The method to identify various species of fecal coliforms was according to standard methods [20] , [21] , [22] , [23] , [24] , [25] , [26] , [27] . It is necessary to clarify that the IMVIC test (for determination of various species of fecal coliform), was not performed in about 3% of the all samples.…”

Section: Methodsmentioning

confidence: 99%

Data for distribution of various species of fecal coliforms in urban, rural and private drinking water sources in ten years period – A case study: Kermanshah, Iran

et al. 2018

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This study was aimed to investigate the distribution of various species of fecal coliform in urban, rural and private drinking water sources of Kermanshah, in the west of Iran. For this study, data of ten years period (2006–2016) assessments of microbial quality regarding various species of Fecal coliforms was taken from health centers associated with urban, rural and private resources of Kermanshah city. A total number of 8643 samples were taken, 1851 samples from rural, 365 from urban and 4834 from private resources. The results showed that Fecal coliforms, Escherichia coli (E. coli) had the widest distribution in all urban, rural and private water resources (22.3%, 45.9% and 34%, respectively). Moreover, E. coli (47.5%) and Klebsiella (0.4%) had, respectively, the highest and lowest distribution in all months considered. Based on the results, E.coli exists mostly in water resources; it is therefore of particular importance in the monitoring of water resources.

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Application of advanced oxidation process (H2O2/UV) for removal of organic materials from pharmaceutical industry effluent

Cited by 17 publications

References 23 publications

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Modeling and Optimization of Removal of Cefalexin From Aquatic Solutions by Enzymatic Oxidation Using Experimental Design

Data for factor analysis of hydro-geochemical characteristics of groundwater resources in Iranshahr

Data for distribution of various species of fecal coliforms in urban, rural and private drinking water sources in ten years period – A case study: Kermanshah, Iran

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