Boron removal from aqueous solutions by adsorption — A review

Guan, Zhimin; Lv, Jia-Fei; Bai, Peng; Guo, Xianghai

doi:10.1016/j.desal.2015.12.026

Cited by 194 publications

(88 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Alternative technologies for boron removal have been proposed, including adsorption, ion exchange, liquid–liquid extraction, electrodialysis, and precipitation coagulation. [4a,b,14] Among these alternatives, adsorption has emerged as the most promising technology due to its low cost, excellent selectivity, and operational simplicity …”

Section: Pseudo‐second‐order Rate Model Parameters For Experiments Pementioning

confidence: 99%

“…Adsorption‐based technologies for boron removal from aqueous solutions primarily rely on boron‐selective resins, which are typically made from polymers bearing boron chelating moieties (e.g., polyol groups). [4c,15] Other materials have also been explored for boron adsorption, including activated carbons and metal oxides, but their performance is often inferior to that of polymeric resins because they typically lack the boron‐specific polyol functional groups . High‐performance adsorbents must possess—at a minimum—excellent selectivity, large capacities, fast adsorption rates, long‐term stability, and reusability.…”

Section: Pseudo‐second‐order Rate Model Parameters For Experiments Pementioning

confidence: 99%

See 1 more Smart Citation

Functionalized Porous Aromatic Frameworks as High‐Performance Adsorbents for the Rapid Removal of Boric Acid from Water

et al. 2019

View full text Add to dashboard Cite

This study demonstrates that functionalized, highly porous polymers are promising for the adsorptive capture of boric acid, a neutral contaminant that is difficult to remove from seawater using conventional reverse osmosis membranes. Appending N‐methyl‐d‐glucamine (NMDG) to the pore walls of high‐surface‐area porous aromatic frameworks (PAFs) yields the adsorbents PAF‐1‐NMDG and P2‐NMDG in a simple two‐step synthesis. The boron‐selective PAFs demonstrate adsorption capacities that are up to 70% higher than those of a commercial boron‐selective resin, Amberlite IRA743, and markedly faster adsorption rates, owing to their higher NMDG loadings and greater porosities relative to the resin. Remarkably, PAF‐1‐NMDG is able to reduce the boron concentration in synthetic seawater from 2.91 to <0.5 ppm in less than 3 min at an adsorbent loading of only 0.3 mg mL−1. The boron adsorption rate constants of both frameworks, determined via a pseudo‐second‐order rate model, represent the highest values reported in the literature—in most cases orders of magnitude higher than those of other boron‐selective adsorbents. The frameworks can also be readily regenerated via mild acid/base treatment and maintain constant boron adsorption capacities for at least 10 regeneration cycles. These results highlight the numerous advantages of PAFs over traditional porous polymers in water treatment applications.

show abstract

Section: Pseudo‐second‐order Rate Model Parameters For Experiments Pementioning

confidence: 99%

Section: Pseudo‐second‐order Rate Model Parameters For Experiments Pementioning

confidence: 99%

Functionalized Porous Aromatic Frameworks as High‐Performance Adsorbents for the Rapid Removal of Boric Acid from Water

et al. 2019

View full text Add to dashboard Cite

show abstract

“…These results are consistent with previous studies. [20][21][22] Figure 2 shows XRD patterns of Al, Ni, and NA11. These demonstrate that Al, Ni, and NA11 have structures similar to gibbsite, β-Ni(OH) 2 , and nickel hydroxide, respectively.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Interaction between Borate Ions and Nickel–Aluminum Complex Hydroxide for Purification of Wastewater

Ogata

Nagai

Toda

et al. 2019

CHEMICAL & PHARMACEUTICAL BULLETIN

View full text Add to dashboard Cite

A new mixed metal hydroxide adsorbent (NA11, molar ratio Ni-Al 1 : 1) was prepared and its physicochemical properties (specific surface area, amount of hydroxyl group, scanning electron microscopy images, X-ray diffraction analysis, elemental distribution, and binding energy) were studied. In addition, the amount of borate ion adsorbed using several adsorbents, including NA11, was evaluated in this study. The specific surface area of and amount of hydroxyl group in NA11 was greater than those of the other studied adsorbents. The amount of borate ion adsorbed showed similar trends to those of the specific surface area and number of hyrdroxyl groups, which indicated that the adsorption mechanism of borate ion was related to the specific surface area and the amount of hydroxyl group. After adsorption, the binding energy of boron B(1s) peaked, and the sulfur peak intensity S(2s) and S(2p) reduced. These results suggest that ion exchange between borate and sulfate ions was one of the adsorption mechanisms. Equilibrium adsorption was reached within 6 h in the case of NA11. These data were fitted into a pseudo-second-order model (r 0.813-0.998). The solution pH affected the capacity of NA11 for adsorbing borate ion from aqueous solution. It was found that adsorbance was greatest at pH 10. Adsorption isotherm data were fitted to both the Freundlich (r 0.986-0.994) and Langmuir (r 0.997-0.999) isotherm equations. Collectively, it is suggested that NA11 is prospectively useful for the adsorption of borate ion from aqueous solutions.

show abstract

“…(considering cell growth). The lower effect of CO2 addition on B biosorption studies could be associated with the high solubility of the B complexes in moderately-acidic solutions (Guan et al, 2016). Hence, differences in B removal can be only associated with H+ competition for the active sites on the surface adsorption process.…”

Section: Co2 Supplymentioning

confidence: 99%

Influence of organic matter and CO2 supply on bioremediation of heavy metals by Chlorella vulgaris and Scenedesmus almeriensis in a multimetallic matrix

Saavedra

Muñoz

Taboada

et al. 2019

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

This research evaluated the influence of organic matter (OM) and CO2 addition on the bioremediation potential of two microalgae typically used for wastewater treatment: Chlorella vulgaris (CV) and Scenedesmus almeriensis (SA). The heavy metal (HM) removal efficiencies and biosorption capacities of both microalgae were determined in multimetallic solutions (As, B, Cu, Mn, and Zn) mimicking the highest pollutant conditions found in the Loa river (Northern Chile). The presence of OM decreased the total biosorption capacity, specially in As (from 2.2 to 0.0 mg/g for CV and from 2.3 to 1.7 mg/g for SA) and Cu (from 3.2 to 2.3 mg/g for CV and from 2.1 to 1.6 mg/g for SA), but its influence declined over time. CO2 addition decreased the total HM biosorption capacity for both microalgae species and inhibited CV growth. Finally, metal recovery using different eluents (HCl, NaOH, and CaCl2) was evaluated at two different concentrations. HCl 0.1 M provided the highest recovery efficiencies, which supported values over 85% of As, 92% of Cu, and ≈ 100% of Mn and Zn from SA. The presence of OM during the loaded stage resulted in a complete recovery of As, Cu, Mn, and Zn when using HCl 0.1 M as eluent.

show abstract

Boron removal from aqueous solutions by adsorption — A review

Cited by 194 publications

References 100 publications

Functionalized Porous Aromatic Frameworks as High‐Performance Adsorbents for the Rapid Removal of Boric Acid from Water

Functionalized Porous Aromatic Frameworks as High‐Performance Adsorbents for the Rapid Removal of Boric Acid from Water

Evaluation of the Interaction between Borate Ions and Nickel–Aluminum Complex Hydroxide for Purification of Wastewater

Influence of organic matter and CO2 supply on bioremediation of heavy metals by Chlorella vulgaris and Scenedesmus almeriensis in a multimetallic matrix

Contact Info

Product

Resources

About