Evaluation on the removal efficiency of pharmaceutical compounds in conventional drinking water treatment processes

Seo, Hee-Jeong; Park, Yong-Hoon; Kang, In-Sook; Myong, Hwa-Bong; Song, Yangsuk; Kang, Yeong-Ju

doi:10.5806/ast.2016.29.3.126

Cited by 1 publication

(2 citation statements)

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“…Adsorption decreased as the adsorbent coverage increased and tended to achieve the highest efficiency. The good fit of the Freundlich model (Equation ( 6)) was evidenced by both low values of the standard deviation σ = 0.36 (Equation ( 9)) and the specific mean error ME = 3.72 (Equation (10)). The R-squared coefficient of determination (Equation ( 11)) as a measure of the goodness of fit of the model to the experimental values indicated that the fit of all adsorption models used were very good; however, the Freundlich isotherm (R 2 = 0.999) was practically consistent with the experimental conditions.…”

Section: Determination Of Isotherm Parametersmentioning

confidence: 99%

“…In order to effectively eliminate ACT (and other organic pollutants) from water, many studies have been carried out, and various technological systems have been evaluated, at both a laboratory and pilot scale. Biological processes, advanced oxidation processes (photodegradation), membrane processes and adsorption using various adsorbents have been taken into account [9][10][11][12]. The decontamination of ACT can also be achieved through the biosorption process [13].…”

Section: Introductionmentioning

confidence: 99%

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Removal of Acetaminophen from Aqueous Solutions in an Adsorption Process

Skwarczynska-Wojsa,

Puszkarewicz

2024

Materials

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Acetaminophen (C8H9NO2, also called paracetamol) is an active metabolite of phenacetin with antipyretic and analgesic effects and has been extensively used as a painkiller. Currently, the problem of pharmaceuticals in water and sewage is common, especially in highly urbanized countries. Laboratory-scale experiments were carried out using an adsorbent—granulated activated carbon (WD-extra)—to remove acetaminophen (ACT) from water. The initial concentration of acetaminophen was 20 mg ACT/dm3. The adsorption kinetics, influence of the pH on adsorption and dose of the used adsorbent were determined under batch conditions. The adsorption of ACT on activated carbon was more efficient when the water solution was acidic (at pH 2, it was the most effective). The highest percentage of removal (99%) was obtained for the WD-extra dose of 10.0 g/dm3. The time taken to establish the dynamic equilibrium of the system was 60 min. The effectiveness of adsorption was determined based on the Freundlich and Langmuir adsorption isotherms. It was found that WD-extra activated carbon effectively removed ACT from water solutions.

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Section: Determination Of Isotherm Parametersmentioning

confidence: 99%