Highly effective removal of phosphate from complex water environment with porous Zr-bentonite alginate hydrogel beads: Facile synthesis and adsorption behavior study
Source abstract
Abstract
Abstract The development of an effective phosphate removal strategy is still considered to be an important challenge in the field of wastewater remediation. In this study, novel alginate immobilized Zr-bentonite hydrogel beads were synthesized assisted by Zr-modification and Na2CO3 + HCl pore forming (abbreviated as NH-SA-ZrBT), that led to an enhancement in the specific surface area and porosity. The novel NH-SA-ZrBT adsorbent exhibited a high stability and adsorption selectivity for phosphate from complex water environments with various competitive anions, NaCl salinity and humic acid. The isotherm was fitted well by both Langmuir and Freundlich models, suggesting that the adsorption process was the chemisorption and the hydrogel beads could function through a variety of mechanisms. The maximum adsorption capacity of NH-SA-ZrBT for phosphate was calculated to be 63.61 mg/g at 25 °C by Langmuir model and had a high retention of 92.2% after five adsorption-desorption cycles. The kinetic data were better fitted by the pseudo-second model. Considering the zeta potential and XPS data before and after the phosphate adsorption, the adsorption mechanism was proposed to be a combination of electrostatic attraction, ligand exchange and inner sphere complexation. The present study demonstrates a new strategy for the fabrication of stable, separable and low-cost bentonite-containing hydrogel beads for phosphate removal from complex wastewater.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Phosphorus and nutrient management · Layered Double Hydroxides Synthesis and Applications · Parathyroid Disorders and Treatments
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (60)
Show source-provided references
1. Using Ca-Fe layered double hydroxide transformation to optimise phosphate removal from waste waters
2. Electrospinning composite nanofibers of polyacrylonitrile/synthetic Na-montmorillonite10.1016/j.jiec.2015.12.024 ↗
3. Efficient phosphate removal from water for controlling eutrophication using novel composite adsorbent10.1016/j.jclepro.2019.04.325 ↗
4. Performance and prospects of different adsorbents for phosphorus uptake and recovery from water10.1016/j.cej.2019.122566 ↗
5. Cost effectiveness of phosphorus removal processes in municipal wastewater treatment10.1016/j.chemosphere.2017.12.169 ↗
6. Eutrophication decrease: phosphate adsorption processes in presence of nitrates10.1016/j.jenvman.2017.05.026 ↗
7. Lanthanum compounds-modified rectorite composites for highly efficient phosphate removal from wastewater10.1016/j.clay.2020.105875 ↗
8. Influence of dissolved organic carbon on the efficiency of P sequestration by a lanthanum modified clay10.1016/j.watres.2015.07.003 ↗
9. Adsorption of phosphate ions from aqueous solution by modified bentonite with magnesium hydroxide Mg(OH)210.1016/j.clay.2017.01.021 ↗
10. Preparation of polyaminated Fe3O4@chitosan core-shell magnetic nanoparticles for efficient adsorption of phosphate in aqueous solutions10.1016/j.jiec.2019.11.033 ↗
11. Size modulation of zirconium-based metal organic frameworks for highly efficient phosphate remediation10.1021/acsami.7b10024 ↗
12. A novel lanthanum-modified bentonite, Phoslock, for phosphate removal from wastewaters10.1016/j.clay.2009.09.009 ↗
13. Characterizing preferential adsorption of phosphate on binary sorbents of goethite and maghaemite using in situ ATR-FTIR and 2D correlation spectroscopy
14. NaLa (CO3)2 hybridized with Fe3O4 for efficient phosphate removal: Synthesis and adsorption mechanistic study
15. Simultaneous removal of ammonium and phosphate by alkaline-activated and lanthanum-impregnated zeolite10.1016/j.chemosphere.2016.08.110 ↗
16. Effective phosphate adsorption by Zr/Al-pillared montmorillonite: Insight into equilibrium, kinetics and thermodynamics10.1016/j.clay.2014.12.002 ↗
17. Investigating binding characteristics of cadmium and copper to DOM derived from compost and rice straw using EEM-PARAFAC combined with two-dimensional FTIR correlation analyses10.1016/j.jhazmat.2017.10.022 ↗
18. Preparation of PVA hydrogel beads and adsorption mechanism for advanced phosphate removal10.1016/j.cej.2013.09.045 ↗
19. Magnetite nanoparticles supported on organically modified montmorillonite for adsorptive removal of iodide from aqueous solution: optimization using response surface methodology10.1016/j.scitotenv.2017.09.324 ↗
20. Jarnthong · 2017 · 020014
21. Hydrothermally synthesized lanthanum carbonate nanorod for adsorption of phosphorus: material synthesis and optimization, and demonstration of excellent performance
22. Needle-like Mg-La bimetal oxide nanocomposites derived from periclase and lanthanum for cost-effective phosphate and fluoride removal: characterization, performance and mechanism10.1016/j.cej.2019.122963 ↗
23. Fabrication of metal ions cross-linked alginate assisted biocomposite beads for selective phosphate removal10.1016/j.jece.2017.02.005 ↗
24. Adsorption as a technology to achieve ultra-low concentrations of phosphate: research gaps and economic analysis10.1016/j.wroa.2019.100029 ↗
25. Use of a La (III)-modified bentonite for effective phosphate removal from aqueous media10.1016/j.jhazmat.2014.03.023 ↗
26. Arsenate and phosphate removal from water using Fe-sericite composite beads in batch and fixed-bed systems10.1016/j.jiec.2016.12.008 ↗
27. Effect of calcium ion on phosphate adsorption onto hydrous zirconium oxide10.1016/j.cej.2016.10.001 ↗
28. Effect of precipitation pH and coexisting magnesium ion on phosphate adsorption onto hydrous zirconium oxide10.1016/j.jes.2018.04.023 ↗
29. Amino-functionalized magnetic zirconium alginate beads for phosphate removal and recovery from aqueous solutions10.1002/app.46897 ↗
30. Phosphorus removal and recovery from water with macroporous bead adsorbent constituted of alginate-Zr4+ and PNIPAM-interpenetrated networks10.1016/j.ijbiomac.2018.12.269 ↗
31. Recovery of phosphate from calcium-containing aqueous solution resulting from biochar-induced calcium phosphate precipitation10.1016/j.jclepro.2017.07.042 ↗
32. Ultra-high capacity of lanthanum-doped UiO-66 for phosphate capture: Unusual doping of lanthanum by the reduction of coordination number10.1016/j.cej.2018.10.043 ↗
33. A comparative study on different metal loaded soybean milk by-product ‘okara’ for biosorption of phosphorus from aqueous solution10.1016/j.biortech.2014.06.075 ↗
34. Phosphorus elimination from aqueous solution using ‘zirconium loaded okara’as a biosorbent10.1016/j.biortech.2014.07.069 ↗
35. Nanoporous sorbents for the removal and recovery of phosphorus from eutrophic waters: sustainability challenges and solutions10.1021/acssuschemeng.8b01809 ↗
36. Cationic and anionic dyes removal by low-cost hybrid alginate/natural bentonite composite beads: Adsorption and reusability studies10.1016/j.ijbiomac.2018.11.197 ↗
37. Al-intercalated acid activated bentonite beads for the removal of aqueous phosphate10.1016/j.scitotenv.2016.08.040 ↗
38. Porous synthetic hectorite clay-alginate composite beads for effective adsorption of methylene blue dye from aqueous solution10.1016/j.ijbiomac.2018.04.008 ↗
39. Alteration of fine fraction of bentonite from Kopernica (Slovakia) under acid treatment: a combined XRD, FTIR, MAS NMR and AES study10.1016/j.clay.2018.07.028 ↗
40. Fabrication of a biomass-based hydrous zirconium oxide nanocomposite for preferable phosphate removal and recovery10.1021/acsami.5b06098 ↗
41. Zinc release from Zn-Mg-Fe(III)-LDH intercalated with nitrate, phosphate and carbonate: the effects of low molecular weight organic acids10.1016/j.clay.2019.01.016 ↗
42. Highly porous zirconium-crosslinked graphene oxide/alginate aerogel beads for enhanced phosphate removal10.1016/j.cej.2018.10.033 ↗
43. Optimising the recovery and re-use of phosphorus from wastewater effluent for sustainable fertiliser development10.1016/j.watres.2016.02.038 ↗
44. Alginate-immobilized bentonite clay: adsorption efficacy and reusability for Cu(II) removal from aqueous solution10.1016/j.biortech.2013.12.056 ↗
45. Zirconium-loaded magnetic interpenetrating network chitosan/poly(vinyl alcohol) hydrogels for phosphorus recovery from the aquatic environment10.1016/j.apsusc.2017.06.201 ↗
46. MgFe2O4-biochar based lanthanum alginate beads for advanced phosphate removal10.1016/j.cej.2019.123305 ↗
47. Activation of natural halloysite nanotubes by introducing lanthanum oxycarbonate nanoparticles via co-calcination for outstanding phosphate removal10.1039/C8CC10314C ↗
48. Advanced phosphate removal by La–Zr–Zn ternary oxide: Performance and mechanism10.1016/j.jallcom.2019.152745 ↗
49. Hydrated lanthanum oxide-modified diatomite as highly efficient adsorbent for low-concentration phosphate removal from secondary effluents10.1016/j.jenvman.2018.10.059 ↗
50. Selective phosphate removal from water and wastewater using sorption: process fundamentals and removal mechanisms10.1021/acs.est.9b05569 ↗
51. Removal of phosphate from wastewater by modified bentonite entrapped in Ca-alginate beads
52. Adsorption of phosphate from aqueous solution by hydroxy-aluminum, hydroxy-iron and hydroxy-iron–aluminum pillared bentonites10.1016/j.jhazmat.2010.02.086 ↗
53. Research on the characteristics of red mud granular adsorbents (RMGA) for phosphate removal10.1016/j.jhazmat.2009.11.098 ↗
54. Removal of phosphate from natural waters using innovative modified bentonites10.1016/j.clay.2012.04.020 ↗
55. A novel bentonite-humic acid composite material Bephos™ for removal of phosphate and ammonium from eutrophic waters10.1016/j.cej.2013.03.064 ↗
56. Systematic screening of layered double hydroxides for phosphate removal and mechanism insight10.1016/j.clay.2019.03.030 ↗
57. Modification of zero valent iron nanoparticles by sodium alginate and bentonite: Enhanced transport, effective hexavalent chromium removal and reduced bacterial toxicity10.1016/j.jhazmat.2019.121822 ↗
58. High efficient coagulant simply by mechanochemically activating kaolinite with sulfuric acid to enhance removal efficiency of various pollutants for wastewater treatment
59. Preparation and characterization of zirconia-loaded lignocellulosic butanol residue as a biosorbent for phosphate removal from aqueous solution10.1016/j.apsusc.2016.06.107 ↗
60. Strong adsorption of phosphate from aqueous solution by zirconium-loaded Ca-montmorillonite