Phenol Removal from Aqueous Environment by Adsorption onto Pomegranate Peel Carbon

Abstract

IntroductionPhenol and its derivatives are the most common poisonous compounds which are stable in aqueous media and lead to many health issues. In this study, application of the carbon resulted from pomegranate peel is investigated in removal of phenol by adsorption method.Methodsto perform this cross-sectional study, first, samples of phenol with concentrations of 10 to 100 mg/L were prepared for six months in 2016. Then, the impacts of parameters such as pH, adsorbent dosage, contact time, and initial concentration of phenol in adsorption process were investigated independently in Gonabad Chemistry Lab using a spectrophotometer at 505 nm as the wavelength. Furthermore, adherence of the samples to the isotherm models of Langmuir and Freundlich was determined by Excel 2016 and descriptive statistical methods were then reported.ResultsThe obtained results demonstrated a maximum adsorption capacity (ash) of 148.38 mgg-1 at pH 7, initial concentration of 100 mg L−1, and temperature of 23 ± 2 °C. The phenol removal rate was found to correlate directly to the adsorbent dosage and contact time, and inversely to the initial concentration of phenol. In addition, the investigations showed that the adsorption of phenol on the pomegranate peel ash follows the Freundlich model well with a correlation coefficient of R2 0.9056.ConclusionPomegranate peel ash could be used as an efficient and low-cost adsorbent for phenol removal from aqueous media.

Removal of Phenol and 2-Chlorophenol by Banana Bunch Activated Carbon Prepared by Hydrothermally-Assisted Koh Activation

“…In contrast, the adsorption capacity of 2-chlorophenol decreased with the increase of concentration. This could be the limited number of active sites on adsorbent that become saturation at high 2-chlorophenol concentration 13 . This phenomenon proved that the active site of activated carbon has beensaturationby the adsorbatesstarting from the initial concentration.…”

Iron-Loaded Pomegranate Peel as a Bio-Adsorbent for Phosphate Removal

“…To mitigate this problem, various revalorization methods have been introduced, such as the production of valuable compounds for essential oils [20,21], food additives [22], and medicinal products [23], as well as energy and value-added products such as bioethanol and biogas [24,25]. PP is increasingly being used as a bio-adsorbent for heavy metals, dyes, and other contaminants [9,[26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. The present study investigated the efficiency of activated PP at phosphate removal from an aqueous solution.…”

Optimized parameters using Box–Behnken design methodology facilitate enhanced phenol degradation of Bacillus cereus PB1 by immobilization and adsorption

“…But currently more focus is given to natural adsorbent replacing conventional materials to perform the treatment process in a cost‐effective manner (Villegas et al., 2016; Ke et al., 2018). Recently, agricultural wastes have been used as adsorbents for removal of pollutants (Afsharnia, Saeidi, Zarei, Narooie, & Biglari, 2016; Auwal, Hossen, & Zaman, 2018). The exploitation of rice straw source would facilitate to utilize low‐cost agricultural wastes material for adsorption of phenol.…”