CA2251923A1 - Cleansing contaminants from a heterogeneous material using a sorption agent - Google Patents
Cleansing contaminants from a heterogeneous material using a sorption agentInfo
- Publication number
- CA2251923A1 CA2251923A1 CA002251923A CA2251923A CA2251923A1 CA 2251923 A1 CA2251923 A1 CA 2251923A1 CA 002251923 A CA002251923 A CA 002251923A CA 2251923 A CA2251923 A CA 2251923A CA 2251923 A1 CA2251923 A1 CA 2251923A1
- Authority
- CA
- Canada
- Prior art keywords
- sorption agent
- heterogeneous material
- cleansing
- contaminants
- gravel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
There is described a process for cleansing contaminants, such as oil, PCB, PAH, heavy metals and the like, from a heterogeneous material, such as sand, gravel, earth, oil gravel, asphalt, drill borings ("kaks") and the like. More specifically the invention relates to a process comprising the steps: i) that a sorption agent is added to the material, and that the material and the sorption agent are mixed/kneaded sufficiently for a considerable portion of the contamination to be extracted from the material and absorbed by the sorption agent, and that ii) thereafter the sorption agent is separated from the material on the basis of specific gravity/particle size by means of an applied flow of gas, so that the sorption agent is led with the flow and can be collected in a separate fraction.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO961511A NO961511D0 (en) | 1996-04-17 | 1996-04-17 | Contaminated pulp cleaning method |
NO961511 | 1996-04-17 | ||
PCT/NO1997/000099 WO1997038805A1 (en) | 1996-04-17 | 1997-04-16 | Cleansing contaminants from a heterogeneous material using a sorption agent |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2251923A1 true CA2251923A1 (en) | 1997-10-23 |
CA2251923C CA2251923C (en) | 2006-07-04 |
Family
ID=36648532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002251923A Expired - Fee Related CA2251923C (en) | 1996-04-17 | 1997-04-16 | Cleansing contaminants from a heterogeneous material using a sorption agent |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2251923C (en) |
-
1997
- 1997-04-16 CA CA002251923A patent/CA2251923C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2251923C (en) | 2006-07-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20140416 |
|
MKLA | Lapsed |
Effective date: 20140416 |