Investigation of process parameters for removal of bisphenol A (BPA) from water by polymeric adsorbents in adsorption‐ultrafiltration hybrid system

Abstract

BACKGROUND: The effect of process parameters of a hybrid process integrating adsorption and ultrafiltration in a single system was investigated for bisphenol A (BPA) removal from water. The styrene-divinylbenzene-based, macroporous Purolite MN 202 and Dowex Optipore L493 polymeric adsorbents were employed for adsorption of BPA from water while a ZW-1 model submerged ultrafiltration module was applied in the hybrid system to separate the fine adsorbent particles from treated water.RESULTS: According to the results obtained using Dowex Optipore L493, the optimum operating conditions to reach minimum BPA concentration in the treated water were found to be: adsorbent concentration 0.5 g-adsorbent L −1 -solution, replacement rate of saturated and fresh adsorbents 9 mL min −1 , permeate flow rate 3 mL min −1 , and polymeric adsorbent particle size range 50-100 m. CONCLUSION: The adsorption-ultrafiltration hybrid system is considered as a promising treatment process for removal of BPA from water using highly crosslinked polymeric adsorbents Purolite MN 202 and Dowex Optipore L493.

Adsorption of raw and treated by membranes fermentation brines from table olives processing for phenolic compounds separation and recovery

“…Irreversible adsorption in carbon may be given by adsorbate bonding to specific functional groups on the active sites of the adsorbent or by oxidative polymerization of phenolic compounds onto the surface . Nevertheless, polymeric adsorbents have feasible regeneration under mild conditions and the most commonly used ones are based on polystyrene adsorbents crosslinked with divinylbenzene …”

“…25 Nevertheless, polymeric adsorbents have feasible regeneration under mild conditions and the most commonly used ones are based on polystyrene adsorbents crosslinked with divinylbenzene. 30,31 In the present work, adsorption of phenols in FTOP effluents has been studied with nonionic polymeric resin. Samples of both raw FTOP wastewater and FTOP effluents after membrane filtration (ultrafiltration and nanofiltration) were subjected to adsorption.…”

Synthesis of Graphene Oxide as an Adsorbent for the Removal of Bisphenol A

“…ln q e = ln K f + 1 n ln C e (9) Where n and Kf are the Freundlich constants for the intensity and capacity of adsorption, respectively. Based on the slope and intercept of the linear plot for the experimental data ln qe versus ln Ce, the n and Kf values could can be calculated.…”

“…Bisphenol A (BPA) is a chemical that disrupts the endocrine function and has estrogenic activity, interfering with the reproductive system of animals and humans even at low concentrations [6,7]. BPA is an antioxidant, which is non-biodegradable and highly resistant to chemical degradation, so that its high concentrations could be found in surface water and industrial wastewater [8,9]. BPA is released into the environment during various manufacturing processes and through leaching from final products [10,11].…”

International Trade Regulations on BPA: Global Health and Economic Implications

“…BPA concentrations in surface water vary considerably depending on the location and sampling period, and are mostly below 0.08-12.5 μg L−1 (Flint et al, 2012;İpek et al, 2014). BPA exposure was estimated to be associated with 12,404 cases of childhood obesity and 33,863 cases of newly incident coronary heart disease, with estimated social costs of $2.98 billion in 2008.…”