Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564

Liu, Haining; Ye, Xiushen; Li, Quan; Kim, Tae-Hoon; Qing, Binju; Guo, Min; Ge, Fei; Wu, Zhijian; Lee, Kangtaek

doi:10.1016/j.colsurfa.2009.03.045

Cited by 72 publications

(32 citation statements)

References 47 publications

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“…Solvent extraction was another widely used process for removing boron which was stated to be effective in high concentration streams and utilized more for production of boric acid rather than removal from aqueous streams (10,11). The most extensively used technique for boron removal is ion exchange with strong base anion exchange resins (9,(12)(13)(14)(15)(16). These resins are effective for boron removal, but besides boron, all other species are removed, resulting in a very high regeneration cost (9).…”

Section: Introductionmentioning

confidence: 99%

Use of Specifically Tailored Chelating Polymers for Boron Removal from Aqueous Solutions by Polymer Enhanced Ultrafiltration

Doğanay

Özbelge

Bıçak

et al. 2011

Separation Science and Technology

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Two selective functional polychelatogens, namely hydroxyethylaminoglycerol functioned poly(glycidylmethacrylate (PNS) and Poly(4-Vinyl-1,3-dioxalan-2-one-co-vinyl acetate) (COP) were synthesized and utilized in polymer-enhanced ultrafiltration (PEUF) to remove boron from the aqueous solution. The effect of operating parameters on boron retention was investigated. PNS was synthesized in three molecular weights to observe the effect of molecular weight in borate retention. Increase in pH increased boron retention for all of the synthesized polymers. Decrease in loading resulted in an enhancement in retention values when COP, medium (PNSM) and the low molecular weight of PNS (PNSL) were used. No significant change was observed in the permeate flux with COP (41 L/ m 2 Á h), PNSL (48 L/m 2 Á h) and PNSM (47 L/m 2 Á h). However, a decrease in the loading led to a decrease in the permeate flux for high molecular weight PNS (PNSH). Conformational changes in the polymer structure were examined using dynamic and static light-scattering. Retention results for all of the polymers were found to be remarkably higher than the literature, when polyvinyl alcohol was used as the chelating agent. Satisfactory retention results were obtained using both PNSL (R: $54%) and PNSM (R: $57%), showing that PEUF can be employed effectively for borate removal using the specifically tailored polymers.

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Section: Introductionmentioning

confidence: 99%

Use of Specifically Tailored Chelating Polymers for Boron Removal from Aqueous Solutions by Polymer Enhanced Ultrafiltration

Doğanay

Özbelge

Bıçak

et al. 2011

Separation Science and Technology

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“…This functional group exhibits a high selectivity towards boron due to the presence of ve hydroxyl groups allowing for the coordination of boron to form a stable complex. [5][6][7][8][9][10][11][12] A review of various strategies for the preparation of alternative polymer-based adsorbents and their performance evaluation was published recently. 3 Various polymer-based adsorbents have been developed for boron removal from solution using various polymerisation routes.…”

Section: Introductionmentioning

confidence: 99%

Tuning N-methyl-d-glucamine density in a new radiation grafted poly(vinyl benzyl chloride)/nylon-6 fibrous boron-selective adsorbent using the response surface method

2015

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A new adsorbent containing boron-selective groups was prepared by radiation induced grafting of vinyl benzyl chloride (VBC) onto nylon-6 fibers followed by functionalisation with N-methyl-D-glucamine (NMDG). The density of glucamine loaded in the adsorbent was tuned by optimisation of the reaction parameters such as NMDG concentration, reaction temperature, reaction time and degree of grafting using response surface methodology (RSM) employing Box-Behnken design (BBD). The optimum parameters for achieving the maximum glucamine density (1.7 mmol g À1 ) in the adsorbent are 10.6%, 81 C, 47 min and 121% for the NMDG concentration, reaction temperature, reaction time and degree of grafting (DG), respectively. The deviation between the optimum experimental and predicted glucamine density is found to be 1.2% suggesting the reliability of RSM in predicting the yield and optimising the functionalisation reaction parameters. The chemical composition, morphology and structure of the NMDG-containing fibrous adsorbent were studied using Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The thermal properties were determined using differential scanning calorimetry (DSC) and the thermal stability was evaluated by thermogravimetric analysis (TGA). Considering the physico-chemical properties of the fibrous adsorbent and the preliminary results of boron adsorption, it can be suggested that this adsorbent is a promising candidate for boron removal.

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“…Although it is an important micronutrient for plants, animals, and humans, it can also be toxic at certain levels. Boron can cause disease in the nervous systems of animals1 and high concentrations in drinking water can be toxic to human being 2. A few ppm of boron present in irrigation water can be toxic for some crops 1.…”

Section: Introductionmentioning

confidence: 99%

“…A few ppm of boron present in irrigation water can be toxic for some crops 1. In addition to boron mines, the main anthropogenic sources of water soluble boron compounds in aqueous environment are wastewater containing detergents, fertilizer and insecticide productions, and other industrial effluents 2, 3. There are several processes stated for boron removal from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

“…Polymer supported chelating resins with vicinal diol groups are reported as efficient for boron removal, but these resins are instable in harsh chemical environments 7. An adsorption capacity of 1.15 mmol g −1 was reported for a hybrid gel with boron‐chelating groups prepared using (3‐glycidoxypropyl)trimethoxysilane and N ‐methylglucamine (MG) 2. Maximum boron adsorption capacity obtained with N ‐MG‐type cellulose derivative (1.1 mmol g −1 ) were same as the commercially available N ‐MG‐type polystyrene resin 8.…”

Section: Introductionmentioning

confidence: 99%

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Boron removal by glucamine‐functionalized hydrogel beads in batch fashion

Ersan

Pinarbasi

2011

J of Applied Polymer Sci

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In this study, poly(hydroxypropyl methacrylate) gel beads were synthesized, then it was functionalized to yield glucamine carrying hydrogel beads as a sorbent for boron uptake. The batch-mode sorption studies were performed to obtain the optimum resin concentration and pH for boron removal. The results showed that percent of boron removal increased with increasing amount of resin and reached 98% at 12 mg-resin/mL-solution. The boron removal did not effected much with the change of pH between 4 and 9. The boron adsorption isotherm is in good accordance with the Langmuir and Freundlich equations. The equilibrium adsorption amount of boron is 13.5 mmol g À1 at optimum conditions which is 5 to 50 times higher than the other boron selective adsorbents recorded in literature. Desorption studies showed that 100% elution is possible with HCl. As a conclusion the glucamine carrying hydrogel beads can be effectively used for uptake of boron from aqueous solutions because of their high boron adsorption capacity and reusability.

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Boron adsorption using a new boron-selective hybrid gel and the commercial resin D564

Cited by 72 publications

References 47 publications

Use of Specifically Tailored Chelating Polymers for Boron Removal from Aqueous Solutions by Polymer Enhanced Ultrafiltration

Use of Specifically Tailored Chelating Polymers for Boron Removal from Aqueous Solutions by Polymer Enhanced Ultrafiltration

Tuning N-methyl-d-glucamine density in a new radiation grafted poly(vinyl benzyl chloride)/nylon-6 fibrous boron-selective adsorbent using the response surface method

Boron removal by glucamine‐functionalized hydrogel beads in batch fashion

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