GB2503456A - A method of processing contaminated geological material - Google Patents
A method of processing contaminated geological material Download PDFInfo
- Publication number
- GB2503456A GB2503456A GB1211333.8A GB201211333A GB2503456A GB 2503456 A GB2503456 A GB 2503456A GB 201211333 A GB201211333 A GB 201211333A GB 2503456 A GB2503456 A GB 2503456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contaminated
- processing
- blended
- zeolitic
- contaminated material
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000004035 construction material Substances 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000012615 aggregate Substances 0.000 claims abstract description 5
- 239000002689 soil Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 3
- 239000004568 cement Substances 0.000 claims abstract description 3
- 239000011521 glass Substances 0.000 claims abstract description 3
- 239000004571 lime Substances 0.000 claims abstract description 3
- 238000010408 sweeping Methods 0.000 claims abstract description 3
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000011236 particulate material Substances 0.000 claims description 2
- 239000002956 ash Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000000356 contaminant Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012358 sourcing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Soil Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A method of processing a contaminated material comprises the step of blending a quantity of the contaminated material, a zeolitic material and filler in a mixer to form a blended construction material. The contaminated material maybe geological material such as drill cuttings, contaminated soil, road sweepings, gully sucking dredging or glass cathode ray tubes. In use, the contaminated material is encapsulated by the zeolitic material. The filler may be at least of one pulverized fuel ash, cement, aggregate, lime or water
Description
MATERIAL PROCESSING
Field of the Invention
* 5 The present invention relates to material processing, in particular to processing a contaminated geological material to form a blended construction material.
* Background of the Invention
A form of contaminated geological material comprises drill cuttings. Drill * I cuttings are a waste byproduct created when a well, such as an oil well or gas well, is drilled. During ground drilling, excavated rock fragments are transported * from the borehole to the surface through use of a drilling fluid that circulates up from the drill bit. It is known for drill cuttings to contain lead and other heavy metals, and to contain contaminants such as oil or industrial chemicals. *
***. : A problem exists in the disposal of contaminated geological material. The specific method of disposal of drill cuttings from an individual site is based on the * type and size of the drill cuttings, the type of the drilling fluid and the location of the borehole. However, in a typical method the drill cuttings are separated from
S -
the drilling fluid at the site of the drilling. The drilling fluid may then be recycled and reused, and the drill cuttings may then be discharged to the sea bed, injected into a well or treated and buried in landfill. The overall procedure involves several processes and is expensive. In addition, there exists the issue of sourcing * appropriate disposal sites for ongoing use. Further, there exists an * * 25 environmental concern arising from the potential for leakage of hazardous contaminants into the ecosystem and drinking-water supply.
Similar problems are encountered with the disposal of other forms of contaminated geological waste, such as waste soil. Other types of contamihated * material that are problematic to dispose of include lead glass cathode ray tubes * * .30 and dredgings. * P72851 *
Brief Description of the Drawings
For a better understanding of the invention and to show how the same may be carried into effect, there will now be described by way of example only, specific embodiments, methods and processes according to the present invention with reference to the accompanying drawings in which: -Figure I shows steps in a method of processing a contaminated material to form a blended construction material, and Figure 2 shows a schematic of a method of processing a contaminated io material to form a blended construction material.
Detailed Description of the Embodiments
There will now be described by way of example a specific mode * S S * contemplated by the inventor. In the following description numcrous specific *5'*** is details are set forth in order to provide a thorough understanding. It will be apparent however, to one skilled in the art, that the present invention may be practiced without limitation to these specific details. In other instances, well known methods and structures have not been described in detail so as not to * *5 * S
unnecessarily obscure the description. *5S * 20
Figure 1 The present application relates to material processing. Contaminated * material is utilized in the formation of a blended construction material. The production of a commodity containing contaminated material, which is otherwise problematic and expensive to dispose of, provides for economic and * environmental benefits.
A method 101 of processing a contaminated geological material to form a * blended construction material is illustrated in Figure 1. At step 102, contaminated geological material is received. Filler material is received at 103, and a zeolitic material is received at step 104. II is to be appreciated that steps * 102, 103 and 104 may be performed in any order, and it is further to be * *:* appreciated that any of these steps may be combined with any one or both of the other steps. At step 105, the contaminated geological material filler material and zeolitic material are blended in a mixer to form a blended construction material. Preferably, but optionally, the blended construction material is graded at step 106. This may be performed by any suitable method.
There will now be described a specific embodiment of method 101.
At step 102, contaminated geological material comprising drill cuttings is received. The drill cuttings may be oil based and/or water based drill cuttings.
In an example, the contaminated geological material* consists only of drill cuttings. Typically, drilling cuttings are dewatered in a settling tank and heat treated to remove moisture and some contaminants such as hydrocarbons. In an example, the drilling cuttings material is introduced into the process with a 5% or less moisture content, and with a 20mm or less particle size. * * *
At step 103, a zeolitic material in powder form is received at step 104. In * 15 an example the zeolitic material is a zeolite based catalytic powder. The r. powder may have a particle size up to 300 pm.
At step 104, a filler material comprising at least one of pulverised fuel ash: * .. cement, aggregate, lime and water, is received. Suitable filler material, and the ratios of filler components thereof, is used in proportion relative to the type of contaminated material received. Other suitable types of filler component may be used.
* At step 105, the received contaminated geological material comprising drill cuttings, the received filler material and the received zeolitic material received are blended in a volumetric mixer, to form a blended constructions material. It is to be understood that the blending process may comprise a single blending stage or a plurality of blending stages. For example, in a first blending stage, * relatively dry materials are blended together, and in a second blending stage, relatively wet material is added.
The resultant blended construction material is a coarse particulate material. However, it is to be appreciated the particle size of the resultant blended construction material will vary according to the particle size(s) of the received contaminated material and the particle size(s) of the filler material. In an example, the resultant blended construction material has a particle size of 20mm or less.
Beneficially, in the blended construction material, the drill cuttings are encapsulated by the zeolitic material. The encapsulation of the contaminated geological material prevents the leakage of contaminants from the blended construction material. This allows the blended construction material to be used in a variety of applications.
The resultant blended construction material may be used as recycled aggregate, for example for road base foundation work and concrete products.
* . At step 106, the blended construction material is graded by particle size.
The resultant blended construction material of this specific embodiment is similar to an aggregate, such as crushed concrete, and may be used in some S applications as an equivalent material.
* ....
It is to be appreciated that the method of processing a contaminated *: material to form a blended construction material may utilize other types of contaminated geological materials, for example contaminated soils, road : sweepings, gully suckings, dredgings, glass cathode ray tubes.
Figure 2 Figure 2 shows a schematic 201 of a method of processing a * contaminated geological material to form a blended construction material.
A volumetric mixer 202 has a first inlet 203, a second inlet 204 and a third inlet 205. It is to be appreciated that the volumetric mixer 202 may have further inlets. Each of the inlets allows metered delivery of material into the volumetric mixer 202. This allows a known quantity of contaminated geological material 207, a known quantity of filler material 208 and a known quantity of zeolitic material 209 to be separately delivered into the volumetric mixer 202 and blended. The relative proportions of material introduced into the mixing * * chamber will vary according to the type and properties of the contaminated material to be processed. . The volumetric mixer 202 also has an outlet 206, through which the resultant blended construction material 210 is dispensed. The metered delivery of material into volumetric mixer 202 advantageously facilitates both quantity control and quality control, allowing for a predetermined quantity of blended construction material to be produced and assisting the consistency of batches of the resultant blended construction material from the same source material components; In an embodiment, the volumetric mixer 202 is a mobile vehicle volumetric mixer-This advantageously allows the blended construction material to be -produced on site. In an embodiment, the volumetric mixer 202 has a material * storage receptacle associated with each inlet This beneficially inhibits any * undesirable leakage of hazardous contaminants from the contaminated geological material of other source material components.
* .* . * By turning contaminated material into a blended construction material as described herein, a problematic waste material is turned into a useful commodity that may be used as a substitute material. The invention therefore beneficially changes a waste product into a commercial and useful product, solving disposal problems, reducing landfill and being generally environmentally advantageous. *ea
* .20 -
Claims (12)
- * --6-Claims 1. A method of processing a contaminated material, said method comprising: blending a quantity of said contaminated material, a quantity of a zeolitic material and a quantity of a filler material in a mixer, to form a blended construction material.
- 2. A method of processing a contaminated material as claimed in claim 1, wherein said mixer is a volumetric mixer.
- 3. A method of processing a contaminated material as claimed in claim 1 or claim 2, wherein said contaminated material is a contaminated geological material.S * S * * ** ** 15
- 4. A method of processing a contaminated material as claimed in claim 3, wherein said contaminated geological material comprises drill cuttings.*
- 5. A method of processing a contaminated material as claimed in any preceding claim, wherein said contaminated material comprises: contaminated soil, road sweepings, gully suckings, dredgings, glass cathode raytubes.*
- 6. A method of processing a contaminated material as claimed in any preceding claim, wherein, in said blended construction material, said contaminated material is encapsulated by said zeolitic material.
- 7. A* method of processing a contaminated material as claimed in any preceding claim, wherein said filler material comprises at least one of: * pulverised fuel ash, cement, aggregate, lime, water.
- 8. A method of processing a contaminated material as claimed in any preceding claim wherein said blended construction material is a coarse particulate material.
- 9. A method of processing a contaminated material as claimed in any preceding claim further comprising the step of performing a size grading process on the blended construction material.
- 10. A blended construction material comprising a zeolitic material, formed from performing the method of any of claims ito 9.
- 11. A blended construction material as claimed in claim 101 wherein, in* * said blended construction material, said contaminated material is encapsulated * * * * **. . . * by said zeolitic material.*.. ..: *:
- 12. A method of processing a contaminated material substantially as described herein with reference to the accompanying Figures. * S. * *
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1211333.8A GB2503456A (en) | 2012-06-25 | 2012-06-25 | A method of processing contaminated geological material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1211333.8A GB2503456A (en) | 2012-06-25 | 2012-06-25 | A method of processing contaminated geological material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201211333D0 GB201211333D0 (en) | 2012-08-08 |
| GB2503456A true GB2503456A (en) | 2014-01-01 |
Family
ID=46704244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1211333.8A Withdrawn GB2503456A (en) | 2012-06-25 | 2012-06-25 | A method of processing contaminated geological material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2503456A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2520634A (en) * | 2013-11-26 | 2015-05-27 | Greenworld Ip Ltd | Materials processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2184095C1 (en) * | 2001-08-07 | 2002-06-27 | Кнатько Василий Михайлович | Blend for detoxification and lithification of domestic and industrial wastes, bottom sediments, sludges, and oil-polluted grounds |
| RU2199569C1 (en) * | 2001-11-23 | 2003-02-27 | Кнатько Василий Михайлович | Mixture for detoxification and lithification of drilling sludges and oil- polluted grounds |
| US20070015948A1 (en) * | 2005-07-15 | 2007-01-18 | Newpark Canada Inc. | Stabilization of waste material |
| CN1944324A (en) * | 2006-10-19 | 2007-04-11 | 上海大学 | Method for treating city ditch mud |
| WO2008000087A1 (en) * | 2006-06-29 | 2008-01-03 | Engineered Drilling Solutions Inc. | Method of disposing of drill cuttings in roads |
| RU2387688C1 (en) * | 2009-01-15 | 2010-04-27 | Владимир Иванович Матыцын | Modified curing composition for hardening mineralised drilling sludge ("мос"-1) |
-
2012
- 2012-06-25 GB GB1211333.8A patent/GB2503456A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2184095C1 (en) * | 2001-08-07 | 2002-06-27 | Кнатько Василий Михайлович | Blend for detoxification and lithification of domestic and industrial wastes, bottom sediments, sludges, and oil-polluted grounds |
| RU2199569C1 (en) * | 2001-11-23 | 2003-02-27 | Кнатько Василий Михайлович | Mixture for detoxification and lithification of drilling sludges and oil- polluted grounds |
| US20070015948A1 (en) * | 2005-07-15 | 2007-01-18 | Newpark Canada Inc. | Stabilization of waste material |
| WO2008000087A1 (en) * | 2006-06-29 | 2008-01-03 | Engineered Drilling Solutions Inc. | Method of disposing of drill cuttings in roads |
| CN1944324A (en) * | 2006-10-19 | 2007-04-11 | 上海大学 | Method for treating city ditch mud |
| RU2387688C1 (en) * | 2009-01-15 | 2010-04-27 | Владимир Иванович Матыцын | Modified curing composition for hardening mineralised drilling sludge ("мос"-1) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2520634A (en) * | 2013-11-26 | 2015-05-27 | Greenworld Ip Ltd | Materials processing |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201211333D0 (en) | 2012-08-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |