Degradation of Organic Carbon in Pharmaceutical Wastewater: a Kinetic Approach

Adsorbent Minimization for Removal of Ibuprofen from Water in a Two-Stage Batch Process

“…As previously stated, the concentrations of both the final and initial sample solutions were determined. The amount of IBU adsorbed was calculated using the material balance Equations ( 1) and (2). The amount of pharmaceutical removed from the initial solution concentration, C 0 , is equal to the amount of IBU adsorbed, that is: Quantity of IBU adsorbed on carbon = Quantity of IBU removed from solution (1)…”

“…In recent decades, a myriad of pharmaceutical personal care products (PPCPs) and endocrine-disrupting substances (EDCs) have been frequently identified in the aquatic environment and various water bodies such as treated sewage effluents, surface water, groundwater, and drinking water [1][2][3]. The presence of these emerging contaminants, despite being trace amounts, is a growing concern due to their potential adverse toxic effects on aquatic organisms and human health [4,5].…”

Comparative Study of Data Analysis Techniques for Photo-Fenton Degradation of Landfill Leachate

“…Despite the reasonable predictability of this simple approach, the effects of some photo-Fenton variables, such as reagent feed and radiation intensity, cannot be assessed using this type of model. Thus, models based on the balance of the major species involved in the process, as previously developed, , could be useful.…”

“…In studies on leachate treatment by AOPs, it was found that stochastic modeling allowed using all experimental data, contributing to a broader understanding of the degradation process and favoring optimization. − Two distinct phases of the oxidation process were identified, a first phase occurring very rapidly and a second phase occurring at a slower rate. Analysis of this dual behavior is important, given that changes in reaction conditions, such as reagent feed flow rates, may influence the process, possibly precluding radical oxidant consumption or resulting in low oxidation of carbonaceous compounds …”

“…This study is aimed to compare the empirical model proposed by Siqueira and collaborators with two approaches for the investigation of leachate degradation. , The first approach is a kinetic model developed by Izário Filho et al and applied by Izário Filho et al It is based on the main kinetic equations found in the literature for AOPs and was successfully applied in the study of photo-Fenton degradation of undiluted industrial wastewater. The second approach, design of experiments (DoE), is commonly used for the evaluation of degradation processes.…”