Pre-impregnation approach to encapsulate radioactive liquid organic waste in geopolymer
Source abstract
Abstract
The pre-disposal management of Radioactive Liquid Organic Waste (RLOW) is hampered by its challenging physico-chemical properties. In this work, a straightforward conditioning option based on RLOW impregnation on absorbing materials and followed by encapsulation in a stable geopolymeric matrix is proposed, avoiding onerous pre-treatments and the use of surfactants. Recycled materials have been investigated as adsorbent and geopolymer precursors to foster process sustainability. Relevant properties have been studied to ascertain the waste acceptance criteria accomplishment: materials compatibility, RLOW loading factor and bleeding, microstructure, compressive strength, leaching and thermal stability. This approach is promising, although some criticalities remain unsolved.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Nuclear materials and radiation effects · Chemical Synthesis and Characterization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (63)
Show source-provided references
1. Greenberg · 2013
2. Technical and social problems of nuclear waste10.1002/wene.289 ↗
3. 2007
4. 2017
5. 2009
6. 2009
7. 1992
8. 2004
9. Steam-assisted pyrolysis system for decontamination and volume reduction of radioactive organic waste10.1080/18811248.2007.9711526 ↗
10. Incineration of radioactive organic liquid wastes by underwater thermal plasma10.1088/1742-6596/406/1/012002 ↗
11. Wet-oxidation of spent organic waste tributyl phosphate/diluents10.1023/A:1013218920183 ↗
12. Fenton and Fenton-like wet oxidation for degradation and destruction of organic radioactive wastes
13. Immobilization of low and intermediate level of organic radioactive wastes in cement matrices10.1016/j.jhazmat.2011.04.036 ↗
14. Treatment of organic-contaminated industrial wastes using cement-based stabilization/solidification - I. Microstructural analysis of cement-organic interactions10.1177/0734242X9100900103 ↗
15. A review of solidification/stabilization interferences10.1016/0956-053X(94)90134-1 ↗
16. Effect of oil contaminated aggregates on cement hydration
17. Action and distribution of organic solvent contaminations in hydrating cement: time-resolved insights into solidification of organic waste10.1021/es015528y ↗
18. Cement-based stabilization/solidification of oil refinery sludge: leaching behavior of alkanes and PAHs10.1016/j.jhazmat.2007.02.032 ↗
19. Solidification–stabilization of organic and inorganic contaminants using portland cement: a literature review10.1139/a06-004 ↗
20. Stabilization/solidification of hazardous and radioactive wastes with alkali-activated cements10.1016/j.jhazmat.2006.05.008 ↗
21. Application of geopolymer in stabilization/solidification of hazardous pollutants: a review10.3390/molecules27144570 ↗
22. Rahman · 2014
23. Geopolymers10.1007/BF01912193 ↗
24. Geopolymer technology: the current state of the art10.1007/s10853-006-0637-z ↗
25. Activating solution chemistry for geopolymers, in
26. Natural pozzolan based geopolymers: a review on mechanical, microstructural and durability characteristics10.1016/j.conbuildmat.2018.09.191 ↗
27. Solidification/stabilization (S/S) of high viscosity organics in geopolymers10.1016/j.jnucmat.2022.153979 ↗
28. Geopolymer assembly by emulsion templating: emulsion stability and hardening mechanisms10.1016/j.ceramint.2018.03.079 ↗
29. Geopolymers and related alkali-activated materials10.1146/annurev-matsci-070813-113515 ↗
30. The comparison between alkali-activated slag (Si + Ca) and metakaolin (Si + Al) cements10.1016/j.cemconres.2010.03.020 ↗
31. A brief introduction on the research status and future prospects on geopolymer concrete10.1088/1755-1315/508/1/012124 ↗
32. Incorporation of organic liquids into geopolymer materials - A review of processing, properties and applications10.1016/j.ceramint.2020.11.239 ↗
33. Dispersion phenomena in high viscosityimmiscible fluid systems and application of static mixers as dispersion devices in such systems10.1080/00986448208911047 ↗
34. Solidification/stabilisation of liquid oil waste in metakaolin-based geopolymer10.1016/j.jnucmat.2015.04.036 ↗
35. Stabilization /solidification of waste containing heavy metals and hydrocarbons using OPC and land tras cement10.12911/22998993/92926 ↗
36. Emulsification of low viscosity oil in alkali-activated materials10.1016/j.cemconres.2022.106963 ↗
37. 3D structure of oil droplets in hardened geopolymer emulsions10.1111/jace.16142 ↗
38. B. Fournel, M. Faury, J. Delagrange, Use of surfactant molecules for nuclear decontamination, in: Proc. WM Symp., Tucson, 1999: pp. 1–11.
39. Lin · 1983
40. Liquides Organiques Radioactifs) Treatment by a Solidification Process Using NOCHAR Polymers
41. Encapsulating organic waste into grout matrices using polymeric absorbents and fibre reinforcement
42. Recent progress and future prospects of oil-absorbing materials10.1016/j.cjche.2018.09.001 ↗
43. Innovative and green pre-impregnation solution for the disposal of radioactive liquid organic waste
44. Clark · 1982
45. Design of sustainable geopolymeric matrices for encapsulation of treated radioactive solid organic waste10.3389/fmats.2022.1005864 ↗
46. Geier · 1979
47. Standard and advanced separation: PUREX processes for nuclear fuel reprocessing, in: elsevier Inc. (Ed.)
48. Introduction to the reprocessing and recycling of spent nuclear fuels
49. Effect of foam density, oil viscosity, and temperature on oil sorption behavior of polyurethane10.1002/app.22426 ↗
50. NOCHAR, N910 Petro Bond, (2020). https://nochar.com/n910-petro-bond/.
51. UNI - Italian Standard Body, UNI 11193: Metodi di Prova Per La Qualificazione Dei Processi Di Condizionamento Per Manufatti Appartenenti Alla Categoria 2 (“Test Methods For the Qualification of Conditioning Processes For Category 2 product”, Document written in Italian.), (2006).
52. ISIN - National Inspectorate for Nuclear Safety and Radiation Protection, GUIDA TECNICA N. 33 Criteri di Sicurezza Nucleare e Radioprotezione Per La Gestione Dei Rifiuti Radioattivi (“TECHNICAL GUIDE No. 33 Nuclear safety and Radiation Protection Criteria For Radioactive Waste management”, Document written in Italian), 2023.
53. ANSI - American National Standards Institute, ANS - American Nuclear Society, ANSI/ANS-16.1-2019: Measurement of the Leachability of Solidified Low-Level Radioactive Wastes By a Short-Term Test Procedure, 2019.
54. Hach-Lange, LCI 400 - Chemical Oxygen Demand (COD) - DOC312.53.94030, 2019.
55. ISO - International Organization for Standardization, ISO 15705:2002 - Water quality — Determination of the Chemical Oxygen Demand Index (ST-COD) — Small-scale sealed-Tube Method, 2002. https://www.iso.org/standard/28778.html.
56. Lightweight mortar made with recycled polyurethane foam10.1016/j.cemconcomp.2010.07.017 ↗
57. Durability of lightweight masonry mortars made with white recycled polyurethane foam10.1016/j.cemconcomp.2012.07.006 ↗
58. Solidification and stabilization of spent TBP/OK organic liquids in a phosphate acid-based geopolymer10.1155/2020/8094205 ↗
59. Clayden · Org. Chem. · 201210.1093/hesc/9780199270293.001.0001 ↗
60. Effects of water or alkali solution immersion on the water uptake and physicomechanical properties of polyurethane10.1002/pen.24848 ↗
61. Preparation and characterization of membrane supports for microfiltration and ultrafiltration using kaolin (DD2) and CaCO310.1080/19443994.2015.1021998 ↗
62. Lightweight structural eco-mortars made with polyurethane wastes and non-Ionic surfactants10.1016/j.conbuildmat.2018.11.214 ↗
63. Cadarache lor (liquides organiques radioactifs) treatment by a solidification process using nochar polymers