Thermal desorption system and method for oil-contaminated soil and gravel using microwave indirect irradiation
US-10518303-B2 · Dec 31, 2019 · US
Remediation of contaminated particulate materials
US10016795B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10016795-B2 |
| Application number | US-201314098028-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 5, 2013 |
| Priority date | Dec 13, 2012 |
| Publication date | Jul 10, 2018 |
| Grant date | Jul 10, 2018 |
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- Title
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Abstract
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A process for the remediation of contaminated particulate materials by the addition of an environmentally benign, carbonaceous fuel source in low concentration to enable or enhance smoldering combustion. The process may be applied to both in situ and ex situ treatments. In an ex situ smoldering process for the remediation of contaminated particulate materials in a continuous manner, contaminated feed is introduced near the top of a treatment unit and treated product emerges near the bottom. A smoldering front is maintained in the unit, fed by the fuel in the contaminated particulate material and a supply of combustion-supporting gas, such as air.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for the application of smoldering combustion to remediate contaminated particulate materials, comprising: introducing up to 10 weight percent of a solid additive into a contaminated particulate material to enable or enhance smoldering combustion, wherein the solid additive has a total organic carbon concentration of at least 25 weight percent, and wherein the solid additive comprises a soil conditioner comprising peat, leonardite, humalite, biochar, biosolids, compost, or combinations thereof; and initiating smoldering combustion in the contaminated particulate material. 2. A process according to claim 1 , wherein the additive enables a contaminated particulate material that is unable or only intermittently able to sustain smoldering combustion to consistently sustain smoldering combustion. 3. A process according to claim 1 , wherein the additive is mixed into the contaminated particulate material prior to or during transfer of the contaminated particulate material for ex situ smoldering treatment. 4. A process according to claim 3 , wherein the ex situ smoldering treatment occurs within the confines of a smoldering unit. 5. A process according to claim 3 , wherein the ex situ smoldering treatment occurs in an engineered mound or pit.
Assignees
Inventors
Classifications
- B09C1/06Primary
thermally · CPC title
In situ · CPC title
with additives · CPC title
of contaminated soil, e.g. by oil · CPC title
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- What does patent US10016795B2 cover?
- A process for the remediation of contaminated particulate materials by the addition of an environmentally benign, carbonaceous fuel source in low concentration to enable or enhance smoldering combustion. The process may be applied to both in situ and ex situ treatments. In an ex situ smoldering process for the remediation of contaminated particulate materials in a continuous manner, contaminate…
- Who is the assignee on this patent?
- Rockwell Gregory Paul, Barnes Bradley Scott, Mai Rainer Detlef, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B09C1/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 10 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).