Sorption of tetrabromobisphenol A from solution onto MIEX resin: Batch and column test

Tang, Yongchun; Li, Shuyan; Zhang, Yunhai; Yu, Shuili; Martikka, Mikko

doi:10.1016/j.jtice.2014.04.008

Cited by 23 publications

(12 citation statements)

References 44 publications

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“…These results follow directly from the mechanism of ion exchange as shown by Liu et al for bentazone [75] and discussed in the next section for DOM. In contrast to the previous results, removal of tetrabromobisphenol A by MIEX resin decreased as pH increased [79], which is not expected since tetrabromobisphenol A is neutral at pH<7.5 and negatively charged at pH>7.5. The contradictory results for tetrabromobisphenol A could be due to low solubility and analytical error at acidic pH [80].…”

Section: Synthetic Organic Chemicalscontrasting

confidence: 99%

Removal of Dissolved Organic Matter by Magnetic Ion Exchange Resin

Boyer

2015

Curr Pollution Rep

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This article provides a state-of-the-art review on the uses of magnetic ion exchange (MIEX) resin in drinking water and wastewater treatment, with emphasis on removal of dissolved organic matter (DOM) from drinking water and wastewater, regeneration efficiency, removal of inorganic and synthetic organic chemicals, comparison with other anion exchange resins, and integration with other physical-chemical processes. Through laboratory jar tests, pilot plant tests, and full-scale installations for a variety of drinking water sources, MIEX resin can achieve 30-80 % removal of dissolved organic carbon (DOC), which is often higher than alum or ferric coagulation. In addition, MIEX resin has been shown to remove hydrophilic, transphilic, and hydrophobic fractions of DOM and a wide range of molecular weight fractions of DOM. As a result, MIEX pretreatment results in substantial reductions in the formation of trihalomethanes and haloacetic acids upon chlorination. MIEX resin can achieve bromide removal in the range of 10-50 %, with higher bromide removal in waters with low DOC, low alkalinity, and low sulfate. However, there are commercially available anion exchange resins that are more selective for bromide than MIEX resin. MIEX resin has been investigated in combination with coagulation, activated carbon adsorption, membrane separation, lime softening, and ozonation. MIEX pretreatment has been shown to reduce downstream chemical requirements and improve the operation of downstream processes. This is most evident for coagulation and ozonation where the coagulant dose can be reduced by 50-75 % and the ozone concentration can be increased by 40-65 %. In general, MIEX pretreatment shows minor reductions in membrane fouling. Future research should continue to investigate the integration of MIEX treatment with other processes.

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Section: Synthetic Organic Chemicalscontrasting

confidence: 99%

Removal of Dissolved Organic Matter by Magnetic Ion Exchange Resin

Boyer

2015

Curr Pollution Rep

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“…At pH 6, the predominant form is the molecular form. It contains two aromatic rings which are rich in delocalized pielectrons and form strong cation-pi electron interactions with the quaternary ammonium ions of the MIEX resin (Tang et al, 2014;Zhang et al, 2013;Qu et al, 2008). d. Cations were not specified.…”

Section: Discussionmentioning

confidence: 99%

A preliminary batch study of sorption kinetics of Cr(VI) ions from aqueous solutions by a magnetic ion exchange (MIEX®) resin and determination of film/pore diffusivity

et al. 2016

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A magnetic ion exchange resin was tested for the removal of Cr(VI) ions from aqueous solutions in a batch reactor at different resin dosages (0.5-1.5 g L -1 ), pH values (2-10), temperatures (25 o C-55 o C) and initial concentrations of Cr(VI) (0.11 -2.12 mmol L -1 or 5.7-110 mg L -1 ). The experimental data were evaluated using kinetic models based on the rate controlling steps relevant to pseudo-first order or pseudo-second order reactions or diffusion through fluid film or pores of the MIEX resin beads. Fast uptake of Cr(VI) ions by MIEX resin facilitates the attainment of equilibrium within 60 minutes. The sorption process is strongly dependent on the initial pH of the solution with maximum occurring at pH 4-6. The sorption of Cr(VI) at equilibrium increases with the increase in initial concentration according to the Langmuir isotherm, with a maximum sorption capacity of 93 mg g -1 on MIEX resin.Relatively low activation energy of 43 kJ mol -1 at a high initial concentration of 1 mmol L -1 Cr(VI) suggests a mixed chemical-diffusion controlled process, supported by the agreement of the sorption results with the homogeneous particle diffusion model with a film diffusivity of D f = 1 × 10 -9 m 2 s -1 and a pore diffusivity of D p = 8 × 10 -13 m 2 s -1 .

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“…The selection was based on the NOM average occurrence in surface water (2 -15 mg L -1 ) and in an attempt to avoid saturation of the IOC adsorbents [32,33]. Furthermore, according to several reports, the presence of high HA concentrations can hinder the adsorption uptake of targeted pollutants due to the effect of not only competitiveness, but also steric crowding (pore blockage) [32,35,37,46,47,53,62]. Fig.…”

Section: Adsorption In the Presence Of Humic Acidmentioning

confidence: 99%

Single and multi-component adsorptive removal of bisphenol A and 2,4-dichlorophenol from aqueous solutions with transition metal modified inorganic–organic pillared clay composites: Effect of pH and presence of humic acid

Ortiz-Martínez

Reddy

Cabrera-Lafaurie

et al. 2016

Journal of Hazardous Materials

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Pillared clay based composites containing transition metals and a surfactant, namely MAlOr-NaBt (Bt=bentonite; Or=surfactant; M=Ni(2+), Cu(2+)or Co(2+)), were prepared to study selectivity and capacity toward single and multiple-component adsorption of bisphenol A (BPA) and 2,4-diclorophenol (DCP) from water. Tests were also performed to account for the presence of natural organic matter in the form of humic acid (HA). Equilibrium adsorption capacities for single components increased as follows: NaBt

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Sorption of tetrabromobisphenol A from solution onto MIEX resin: Batch and column test

Cited by 23 publications

References 44 publications

Removal of Dissolved Organic Matter by Magnetic Ion Exchange Resin

Removal of Dissolved Organic Matter by Magnetic Ion Exchange Resin

A preliminary batch study of sorption kinetics of Cr(VI) ions from aqueous solutions by a magnetic ion exchange (MIEX®) resin and determination of film/pore diffusivity

Single and multi-component adsorptive removal of bisphenol A and 2,4-dichlorophenol from aqueous solutions with transition metal modified inorganic–organic pillared clay composites: Effect of pH and presence of humic acid

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