IT1247689B - Process for the solidification/stabilization of harmful and toxic waste using a cement/bentonite composition and product obtained - Google Patents
Process for the solidification/stabilization of harmful and toxic waste using a cement/bentonite composition and product obtainedInfo
- Publication number
- IT1247689B IT1247689B IT04802890A IT4802890A IT1247689B IT 1247689 B IT1247689 B IT 1247689B IT 04802890 A IT04802890 A IT 04802890A IT 4802890 A IT4802890 A IT 4802890A IT 1247689 B IT1247689 B IT 1247689B
- Authority
- IT
- Italy
- Prior art keywords
- toxic waste
- solidification
- harmful
- bentonite
- stabilization
- Prior art date
Links
- 229910000278 bentonite Inorganic materials 0.000 title abstract 3
- 239000000440 bentonite Substances 0.000 title abstract 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000010891 toxic waste Substances 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 title abstract 2
- 238000007711 solidification Methods 0.000 title abstract 2
- 230000008023 solidification Effects 0.000 title abstract 2
- 230000006641 stabilisation Effects 0.000 title abstract 2
- 238000011105 stabilization Methods 0.000 title abstract 2
- 239000004568 cement Substances 0.000 title 1
- 239000000654 additive Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000012615 aggregate Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000004035 construction material Substances 0.000 abstract 1
- 239000010789 controlled waste Substances 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 238000005243 fluidization Methods 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 239000011396 hydraulic cement Substances 0.000 abstract 1
- 230000003100 immobilizing effect Effects 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- 230000001988 toxicity Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
A solidification/stabilization process is described, said process having the aim of encapsulating harmful and toxic waste containing heavy metals, using a mixture composed of hydraulic cement, aggregate, bentonite and an additive having a combined action promoting fluidization and accelerating setting. The bentonite has the effect of immobilizing the pollutants by means of a dual absorption and iron-exchange action, whereas the use of the fluidizing/accelerating additive allows better control of the setting operation and the use of a smaller quantity of water resulting in an improved mechanical performance and an increase in the durability of the end product which may be disposed of in controlled waste tips for toxic waste with a low level of toxicity or which may be used as a construction material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT04802890A IT1247689B (en) | 1990-06-05 | 1990-06-05 | Process for the solidification/stabilization of harmful and toxic waste using a cement/bentonite composition and product obtained |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT04802890A IT1247689B (en) | 1990-06-05 | 1990-06-05 | Process for the solidification/stabilization of harmful and toxic waste using a cement/bentonite composition and product obtained |
Publications (3)
Publication Number | Publication Date |
---|---|
IT9048028A0 IT9048028A0 (en) | 1990-06-05 |
IT9048028A1 IT9048028A1 (en) | 1991-12-05 |
IT1247689B true IT1247689B (en) | 1994-12-30 |
Family
ID=11264049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT04802890A IT1247689B (en) | 1990-06-05 | 1990-06-05 | Process for the solidification/stabilization of harmful and toxic waste using a cement/bentonite composition and product obtained |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1247689B (en) |
-
1990
- 1990-06-05 IT IT04802890A patent/IT1247689B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
IT9048028A0 (en) | 1990-06-05 |
IT9048028A1 (en) | 1991-12-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950628 |