Adsorption properties of fly ash–clay composites from Central European localities: Case study
Source abstract
Abstract
In this study, composite adsorbents were prepared as mixtures of aluminosilicates from Central European deposits (clinoptilolite and bentonite) and two types of fly ash from Czech operations that differed in fuel type and combustion temperature. The composites were tested for the adsorption of individual toxic cations (cadmium (Cd 2+ ) and caesium (Cs +)) and anions (arsenate (AsO 4 3−) and chromate (CrO 4 2−)) and for cation–anion co-adsorption in appropriate model solutions under laboratory conditions. The clay–fly ash combinations were more selective for cation adsorption, with an efficiency of about 80% or higher, and unsuitable for anion adsorption, with a maximum efficiency of 30% for AsO 4 3− and <20% for CrO 4 2−. In the co-adsorption systems, the co-adsorption of all tested ions was more efficient than the adsorption of individual ions—by >20%, on average, for Cd 2+, Cs + and AsO 4 3− and by about 6% for Cr. Because the composite sorbents combined the properties of both components, they exhibited variability in active adsorption sites for effective cation and anion binding. The co-adsorption efficiency was up to 50% higher than that of the adsorption of any single kind of ion.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Coal and Its By-products · Recycling and utilization of industrial and municipal waste in materials production · Waste Management and Environmental Impact
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Removal of Cd(II), Cu(II), and Pb(II) by adsorption onto natural clay: a kinetic and thermodynamic study10.3906/kim-2004-82 ↗
2. A review on the utilization of fly ash10.1016/j.pecs.2009.11.003 ↗
3. Fly ash-based adsorbent for adsorption of heavy metals and dyes from aqueous solution: a review10.1016/j.jmrt.2021.07.140 ↗
4. Fly ash properties, characterization, and applications: a review10.1016/j.jksus.2021.101536 ↗
5. Comparison of arsenate, chromate and molybdate binding on schwertmannite: Surface adsorption vs anion-exchange10.1016/j.jcis.2012.07.008 ↗
6. Cleaning produced water: a study of cation and anion removal using different adsorbents10.1016/j.jece.2019.103006 ↗
7. Potential of fly ash utilisation in India10.1016/S0360-5442(01)00065-2 ↗
8. Effect of surface area and physical–chemical properties of graphite and graphene-based materials on their adsorption capacity towards metronidazole and trimethoprim antibiotics in aqueous solution10.1016/j.cej.2020.126155 ↗
9. Environmental-friendly montmorillonite-biochar composites: facile production and tunable adsorption-release of ammonium and phosphate10.1016/j.jclepro.2017.04.050 ↗
10. Adsorption of cesium on minerals: a review10.1007/BF02219872 ↗
11. The HighScore suite10.1017/S0885715614000840 ↗
12. Sorption of AsV on aluminosilicates treated with FeII nanoparticles10.1016/j.jcis.2006.06.054 ↗
13. Modified aluminosilicates as low-cost sorbents of as(III) from anoxic groundwater10.1016/j.jhazmat.2008.09.088 ↗
14. Use of waste ceramics in adsorption technologies10.1016/j.clay.2016.02.016 ↗
15. Waste brick dust as potential sorbent of lead and cesium from contaminated water10.3390/ma12101647 ↗
16. Adsorption properties of waste building sludge for environmental protection10.3390/min11030309 ↗
17. Mechanism of chromate adsorption on Fe-modified coccrete slurry waste10.1016/j.colsurfa.2022.129650 ↗
18. Effect of precursor particle size on the densification and crystallization behavior of mullite10.1111/j.1151-2916.1993.tb03802.x ↗
19. The toxicity of cadmium and resulting hazards for human health10.1186/1745-6673-1-22 ↗
20. Utilization of Fly ash for sustainable environment management
21. Arsenate and Chromate retention Mechanisms on Goethite. 2. Kinetic Evaluation using a Pressure-jump Relaxation Technique10.1021/es950654l ↗
22. Role of point of zero charge in the adsorption of cationic textile dye on standard biochars from aqueous solutions: selection criteria and performance assessment10.21926/rpm.2202010 ↗
23. A feasibility of Indian fy ash-bentonite as an alternative adsorbent composite to sand-bentonite mixes in landfill liner10.1016/j.envpol.2020.114811 ↗
24. A critical review of clay-based composites with enhanced adsorption performance for metal and organic pollutants10.1016/j.jhazmat.2019.02.003 ↗
25. Bentonite hydrochar composite for removal of ammonium from Koi fish tank10.1016/j.clay.2015.08.022 ↗
26. Environmental performance of eco-design strategies applied to the building sector
27. Comparative uptake study of toxic elements from aqueous media by the different particle-size-fractions of fly ash10.1016/j.jhazmat.2010.07.095 ↗
28. Biosorption of cesium by native and chemically modified biomass of marine algae: Introduce the new biosorbents for biotechnology applications10.1016/j.jhazmat.2004.08.022 ↗
29. Mechanisms of chromate adsorption on boehmite10.1016/j.jhazmat.2014.05.067 ↗
30. Comparison of the experimental results with the Langmuir and Freundlich models for copper removal on limestone adsorbent10.1007/s13201-019-1061-2 ↗
31. The pH dependent surface charging and points of zero charge. X. Update10.1016/j.cis.2023.102973 ↗
32. Application of cellulose-clay composite biosorbent toward the effective adsorption and removal of chromium from industrial wastewater10.1021/ie201349h ↗
33. Managing Natural Resources through Sustainable Environmental Actions: a Cross-Sectional Study of 138 Countries10.3390/su132212475 ↗
34. Preparation of granular X-type zeolite/ activated carbon composite from elutrilithe by adding pitch and solid SiO210.1016/j.matchemphys.2014.06.051 ↗
35. Bifunctional CO oxidation over Mn-mullite anchored Pt sub-nanoclusters via atomic layer deposition10.1039/C7SC05486F ↗
36. Malát · 1973
37. Thermodynamics of Solvation of Ions. Part 5-Gibbs Free Energy of Hydration at 298.15 K. J. Chem. Soc10.1039/FT9918702995 ↗
38. Equilibrium, kinetic and thermodynamic study of Pb2+ removal from aqueous solution by waste brick dust10.1016/j.colsurfa.2021.127939 ↗
39. Physical and compaction behaviour of clay soil–fly ash mixtures10.1007/s10706-013-9632-8 ↗
40. Langmuir isotherm and its application in ion-exchange reactions10.1016/0923-1137(93)90054-J ↗
41. Effect of particle size and surface area on the adsorption of albumin-bonded bilirubin on activated carbon10.1016/j.carbon.2010.06.011 ↗
42. Metabolism and toxicity of arsenic: a human carcinogen
43. Adsorption of 137Cs on montmorillonite and illite: effect of charge compensating cation, ionic strength,concentration of Cs, K and fulvic acid10.1346/CCMN.1997.0450213 ↗
44. Carcinogenicity of chromium and chemoprevention: a brief update10.2147/OTT.S139262 ↗
45. Elimination of selected anions and cations from water by means of the Donnan dial