WO2019075048A1 - Asphalt surface cleaning composition with bitumen rehardening and method - Google Patents
Asphalt surface cleaning composition with bitumen rehardening and method Download PDFInfo
- Publication number
- WO2019075048A1 WO2019075048A1 PCT/US2018/055196 US2018055196W WO2019075048A1 WO 2019075048 A1 WO2019075048 A1 WO 2019075048A1 US 2018055196 W US2018055196 W US 2018055196W WO 2019075048 A1 WO2019075048 A1 WO 2019075048A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- asphalt
- bacteria
- softened
- bitumen
- composition
- Prior art date
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 63
- 239000000203 mixture Substances 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 22
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 22
- 241000894006 Bacteria Species 0.000 claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 7
- 239000003607 modifier Substances 0.000 claims abstract description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000004060 metabolic process Effects 0.000 claims description 4
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
- 229960001922 sodium perborate Drugs 0.000 claims description 2
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 2
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims 1
- 230000001804 emulsifying effect Effects 0.000 claims 1
- 239000004021 humic acid Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000008262 pumice Substances 0.000 claims 1
- SOBHUZYZLFQYFK-UHFFFAOYSA-K trisodium;hydroxy-[[phosphonatomethyl(phosphonomethyl)amino]methyl]phosphinate Chemical compound [Na+].[Na+].[Na+].OP(O)(=O)CN(CP(O)([O-])=O)CP([O-])([O-])=O SOBHUZYZLFQYFK-UHFFFAOYSA-K 0.000 claims 1
- 239000010410 layer Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- -1 fuels and oils Chemical class 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241000194108 Bacillus licheniformis Species 0.000 description 1
- 241000194107 Bacillus megaterium Species 0.000 description 1
- 241000194103 Bacillus pumilus Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 241000589540 Pseudomonas fluorescens Species 0.000 description 1
- 241000589776 Pseudomonas putida Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011538 cleaning material Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/40—Products in which the composition is not well defined
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/24—Mineral surfaces, e.g. stones, frescoes, plasters, walls or concretes
Definitions
- This invention concerns removal of hydrocarbons asphalt paving and treatment of the effects of such spills on the asphalt pavement.
- Bitumen begins to oxidize and harden when exposed to atmospheric oxygen, which occurs during mixing with aggregate, storage, transport to the roadway area, and laying of the asphalt.
- chemical oxidizers and other additives in the hot mix asphalt batch process to achieve the desired hardness of bitumen for a particular use or geographic area. After laying, bitumen will continue to harden on the roadway, particularly on the roadway surface.
- Microbes have also been identified by those skilled in the art, for their ability to increase the viscosity (hardness) of bitumen particularly, but is not believed to be known to have been used in an asphalt cleaning composition for that purpose.
- the hardened layer near the surface of asphalt paving is known to protect the roadway from damage.
- the layer of protection is compromised as the hydrocarbons penetrate into deeper layers of the roadway.
- Softening of the interior asphalt layers leads to deformation of the roadway by vehicles, a loss of binding ability of the bitumen, and eventually a loss of the aggregates and the creation of potholes.
- the present invention comprises a composition and method for removing spills of hydrocarbons on asphalt as having the ability to reharden and re-oxidize the surface layers of the asphalt, through a combination of bacteria metabolism and chemical oxidizers.
- bacteria metabolize the lighter fractions of hydrocarbons, e.g. fuels and oils, they also have been found by the present inventors to metabolize the softened surface bitumen, oxidizing it and increasing its viscosity. After the softened surface bitumen is metabolized, the bacteria cease further activity and die off to be self-limiting in their activity.
- the Drawing comprises a chart which lists formula in percentages by weight.
- An effective bacteria for use in practicing the invention is a blend of Pseudomonas and Bacillus bacterial strains.
- the specific bacteria used to consume chain hydrocarbons and oxidize long chain hydrocarbons are Pseudomonas putida, Pseudomonas fluorescens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, Bacillus subtills.
- bacteria can be obtained from Envera, a company in West Chester, PA that specializes in the isolation, large scale production, stabilization and product formulation of microgranisms.
- the company has isolated bacteria known to utilize hydrocarbons as a food source.
- the bacteria chosen for the present invention were selected based on their ability to harden asphalt surfaces, increasing viscosity via oxidation.
- the hardening action is due to the conversion of lower weight hydrocarbons to high modecular weight oxygenated compounds, as well as the polymerization of unsaturated compounds.
- microbes described are assisted in breaking down the short-chain hydrocarbons by the chemical oxidizers and surfactants also forming a part of the composition according to the invention.
- Oxidation occurs naturally in binders when asphalt pavement ages and is exposed to atmospheric oxygen. Groups of molecules that are polar and contain oxygen are formed and begin to associate into other molecular groups, increasing the viscosity of the bitumen.
- Oxidizers in the present invention assist with the re-introduction of oxygen to the upper layers of damaged asphalt pavements.
- Surfactants emulsify the smaller chain hydrocarbons, allowing faster metabolism by microbial action.
- the chemical oxidizers employed in the cleaning composition which in traditional use, have only been applied during the hot mix phases to achieve desired hardness for a particular grade of asphalt, re-oxidize softened bitumen through chemical reaction and re-polymerization, particularly when used in conjunction with bacteria and with the assistance of absorbent cleaning materials also used in the composition of the invention.
- Absorbents are also used which pull away lighter fractions of hydrocarbons and other volatiles and sequester them in the surface. After application of the cleansing composition of this invention on damaged surface layers of asphalt pavement roadways, the hardening action was found to occur in hydrocarbon-damaged asphalt but not in undamaged asphalt.
- a preferred formula for cleaning composition is shown in the accompanying chart (% by weight).
- the ingredients are in the form of powders blended together in a mixer, which can be applied to a contaminated area. Alternatively, a water based form of the composition can be sprayed on the surface.
- Modifiers - Attapulgite, Styrene Butadiene Styrene, Bentonite, Calcium Carbonate, Fly Ash).
- Modifiers chemically change the composition and condition of bitumen damaged from contaminants (such as: oil, diesel, gasoline, or other hydrocarbon-based fluids).
- Contaminants can act as a solvent that softens the binder of asphalt to cause premature damage and degradation of the asphalt surface.
- the composition of the invention may include with modifiers and/or other polymers modifiers to harden the bitumen surface. Through contact with the modifying agents, this solution utilizes a chemical reaction to harden the damaged bitumen toward a condition more consistent with its original condition, potentially producing an even harder surface structure, in order to prevent further damage and degradation caused by the contaminants.
- the chemical oxidizers increase the viscosity of bitumen as polar hydroxyl, carbonyl, and carboxylic groups are formed, which result in larger and more complex molecules that make bitumen harder and less flexible.
- the softening points of oxidized grades of bitumen are much higher than those of other grades.
- Microbes - (ingredient: Bacteria)
- Microorganisms or bacteria aid in the removal of contaminants through bioremediation. Bacteria in the composition oxidize hydrocarbons on the asphalt surface through metabolic processes as they utilize hydrocarbons as a food source, resulting in an increase in viscosity (hardness) of the surfaces damaged by the hydrocarbon contamination.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
A composition for removing spillage on asphalt paving of hydrocarbon substances which includes modifiers, chemical oxidizers and bacteria which metabolizes both the spillage and a softened top layer of asphalt paving to aid in rehardening the surface of the mat while not metabolizing the underlying asphalt paving unaffected by the spillage.
Description
ASPHALT SURFACE CLEANING COMPOSITION WITH BITUMEN REHARDENING
AND METHOD
CROSS REFERENCE TO RELATED APPLICATION
This application claims the benefit of provisional application no. 62/570,131 filed on October 10, 2017.
FIELD OF THE INVENTION
This invention concerns removal of hydrocarbons asphalt paving and treatment of the effects of such spills on the asphalt pavement.
BACKGROUND OF THE INVENTION
Asphalt roadways commonly use bitumen to bind aggregates together in pavement systems. Bitumen begins to oxidize and harden when exposed to atmospheric oxygen, which occurs during mixing with aggregate, storage, transport to the roadway area, and laying of the asphalt. Those skilled in the art have also employed chemical oxidizers and other additives in the hot mix asphalt batch process to achieve the desired hardness of bitumen for a particular use or geographic area. After laying, bitumen will continue to harden on the roadway, particularly on the roadway surface.
Microbes have also been identified by those skilled in the art, for their ability to increase the viscosity (hardness) of bitumen particularly, but is not believed to be known to have been used in an asphalt cleaning composition for that purpose.
The hardened layer near the surface of asphalt paving is known to protect the roadway from damage. When the upper layers of asphalt pavement is exposed to spills of hydrocarbons, the layer of protection is compromised as the hydrocarbons penetrate into deeper layers of the
roadway. Softening of the interior asphalt layers leads to deformation of the roadway by vehicles, a loss of binding ability of the bitumen, and eventually a loss of the aggregates and the creation of potholes.
SUMMARY OF THE INVENTION
The present invention comprises a composition and method for removing spills of hydrocarbons on asphalt as having the ability to reharden and re-oxidize the surface layers of the asphalt, through a combination of bacteria metabolism and chemical oxidizers. As the bacteria metabolize the lighter fractions of hydrocarbons, e.g. fuels and oils, they also have been found by the present inventors to metabolize the softened surface bitumen, oxidizing it and increasing its viscosity. After the softened surface bitumen is metabolized, the bacteria cease further activity and die off to be self-limiting in their activity.
DESCRIPTION OF THE DRAWING
The Drawing comprises a chart which lists formula in percentages by weight.
DETAILED DESCRIPTION
In the following detailed description, certain specific terminology will be employed for the sake of clarity and a particular embodiment described in accordance with the requirements of 35 USC 112, but it is to be understood that the same is not intended to be limiting and should not be so construed inasmuch as the invention is capable of taking many forms and variations within the scope of the appended claims.
An effective bacteria for use in practicing the invention is a blend of Pseudomonas and Bacillus bacterial strains. The specific bacteria used to consume chain hydrocarbons and oxidize
long chain hydrocarbons are Pseudomonas putida, Pseudomonas fluorescens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, Bacillus subtills.
These bacteria can be obtained from Envera, a company in West Chester, PA that specializes in the isolation, large scale production, stabilization and product formulation of microgranisms. The company has isolated bacteria known to utilize hydrocarbons as a food source.
Research has shown that these bacteria can have an influence on asphalt viscosity and have been known to either soften or harden asphalt, depending on the bacteria present. The bacteria chosen for the present invention were selected based on their ability to harden asphalt surfaces, increasing viscosity via oxidation. The hardening action is due to the conversion of lower weight hydrocarbons to high modecular weight oxygenated compounds, as well as the polymerization of unsaturated compounds.
The microbes described are assisted in breaking down the short-chain hydrocarbons by the chemical oxidizers and surfactants also forming a part of the composition according to the invention.
That is, hardening is accelerated by other components used in the composition of the invention. Oxidation occurs naturally in binders when asphalt pavement ages and is exposed to atmospheric oxygen. Groups of molecules that are polar and contain oxygen are formed and begin to associate into other molecular groups, increasing the viscosity of the bitumen.
Oxidizers in the present invention assist with the re-introduction of oxygen to the upper layers of damaged asphalt pavements.
Surfactants emulsify the smaller chain hydrocarbons, allowing faster metabolism by microbial action. Furthermore, the chemical oxidizers employed in the cleaning composition, which in traditional use, have only been applied during the hot mix phases to achieve desired hardness for a particular grade of asphalt, re-oxidize softened bitumen through chemical reaction and re-polymerization, particularly when used in conjunction with bacteria and with the assistance of absorbent cleaning materials also used in the composition of the invention.
Absorbents are also used which pull away lighter fractions of hydrocarbons and other volatiles and sequester them in the surface. After application of the cleansing composition of this invention on damaged surface layers of asphalt pavement roadways, the hardening action was found to occur in hydrocarbon-damaged asphalt but not in undamaged asphalt.
A preferred formula for cleaning composition is shown in the accompanying chart (% by weight).
The ingredients are in the form of powders blended together in a mixer, which can be applied to a contaminated area. Alternatively, a water based form of the composition can be sprayed on the surface.
1. Modifiers - (ingredients - Attapulgite, Styrene Butadiene Styrene, Bentonite, Calcium Carbonate, Fly Ash).
Modifiers chemically change the composition and condition of bitumen damaged from contaminants (such as: oil, diesel, gasoline, or other hydrocarbon-based fluids). Contaminants can act as a solvent that softens the binder of asphalt to cause premature damage and degradation of the asphalt surface. The composition of the invention may include with modifiers and/or other polymers modifiers to harden the bitumen surface. Through contact with the modifying agents,
this solution utilizes a chemical reaction to harden the damaged bitumen toward a condition more consistent with its original condition, potentially producing an even harder surface structure, in order to prevent further damage and degradation caused by the contaminants.
2. Chemical Oxidizers - (ingredients -Sodium Percarbonate, Sodium Perborate, Sodium Tripolyphosphate, Trisodium Phosphate)
The chemical oxidizers increase the viscosity of bitumen as polar hydroxyl, carbonyl, and carboxylic groups are formed, which result in larger and more complex molecules that make bitumen harder and less flexible. The softening points of oxidized grades of bitumen are much higher than those of other grades.
3. Microbes - (ingredient: Bacteria)
Microorganisms or bacteria aid in the removal of contaminants through bioremediation. Bacteria in the composition oxidize hydrocarbons on the asphalt surface through metabolic processes as they utilize hydrocarbons as a food source, resulting in an increase in viscosity (hardness) of the surfaces damaged by the hydrocarbon contamination.
Chart follows on separate page:
Claims
1. A composition for removal of hydrocarbon spills on asphalt paving said composition containing bacteria which metabolizes asphalt on a top layer of asphalt which has been softened by exposure to said hydrocarbon spill by a spill thereon, and which does not consume unsoftened asphalt paving so that said bacteria dies out after such softened asphalt has been completely removed or consumed.
2. The composition according to claim 1 further including one or more modifiers acting to harden the surface of said softened asphalt surface.
3. The composition according to claim 2 further including one or more chemical oxidizers which act to increase the viscosity of the bitumen in said asphalt powered by forming polar hydroxide, carbonyl or carboxylic groups that result in larger and more complex molecules that make bitumen in said asphalt pavement harder and less flexible.
4. The composition according to claim 3 further including a surfactant emulsifying small chain hydrocarbons allowing faster metabolism by said bacteria.
5. A composition for removal of spillage of hydrocarbon substances on asphalt paving and treating the softening effect on the surface of the asphalt paving comprising a mixture of the following materials of a percentage by weight:
Pumice - 20-25%
Bentonite - 30-40%
Ground Trisodium Phospaht - 1-5% Calcium carbonate - 20-25%
Bacteria which metabolizes softened asphalt but not unsoftened asphalt - 1-5%
Sodium Perborate - 1-5%
Humic Acid - 1-5%
Syntetic Iron Oxide - 1-5%
Sodium tripolyphosphate - 1-5%
6. A method of cleaning up a hydrocarbon spillage on asphalt paving comprising applying a mixture of modifiers, chemical oxidizers, and bacteria which act to metabolize the surface of said asphalt paving which has been softened by said spillage but does not metabolize unsoftened asphalt below said softened top surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/819,410 US11208615B2 (en) | 2017-10-10 | 2020-03-16 | Asphalt surface cleaning composition with bitumen rehardening and method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762570131P | 2017-10-10 | 2017-10-10 | |
| US62/570,131 | 2017-10-10 | ||
| US201816154086A | 2018-10-08 | 2018-10-08 | |
| US16/154,086 | 2018-10-08 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US16/819,410 Continuation US11208615B2 (en) | 2017-10-10 | 2020-03-16 | Asphalt surface cleaning composition with bitumen rehardening and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019075048A1 true WO2019075048A1 (en) | 2019-04-18 |
Family
ID=66101113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2018/055196 WO2019075048A1 (en) | 2017-10-10 | 2018-10-10 | Asphalt surface cleaning composition with bitumen rehardening and method |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2019075048A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5399350A (en) * | 1990-04-05 | 1995-03-21 | Nurture, Inc. | Proteinaceous oil spill dispersant |
| US20050028839A1 (en) * | 2003-08-07 | 2005-02-10 | Macquoid Malcolm | Method for cleaning fluid spills using biodegradable absorbent material and for transporting the same |
| WO2006126057A1 (en) * | 2005-05-23 | 2006-11-30 | Van Der Vijver, Brian | A bioremediation product for use in the biodegradation of liquid hydrocarbons |
| US20120083412A1 (en) * | 2009-10-05 | 2012-04-05 | Dairy Manufacturers, Inc. | Composition and Method for Delivery of Substances in a Dry Mode Having a Surface Layer |
| US20160244347A1 (en) * | 2013-03-15 | 2016-08-25 | Janet Angel | Composition and Methods of Use |
-
2018
- 2018-10-10 WO PCT/US2018/055196 patent/WO2019075048A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5399350A (en) * | 1990-04-05 | 1995-03-21 | Nurture, Inc. | Proteinaceous oil spill dispersant |
| US20050028839A1 (en) * | 2003-08-07 | 2005-02-10 | Macquoid Malcolm | Method for cleaning fluid spills using biodegradable absorbent material and for transporting the same |
| WO2006126057A1 (en) * | 2005-05-23 | 2006-11-30 | Van Der Vijver, Brian | A bioremediation product for use in the biodegradation of liquid hydrocarbons |
| US20120083412A1 (en) * | 2009-10-05 | 2012-04-05 | Dairy Manufacturers, Inc. | Composition and Method for Delivery of Substances in a Dry Mode Having a Surface Layer |
| US20160244347A1 (en) * | 2013-03-15 | 2016-08-25 | Janet Angel | Composition and Methods of Use |
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