CA1293463C - Liquid cleaner containing viable microorganisms - Google Patents
Liquid cleaner containing viable microorganismsInfo
- Publication number
- CA1293463C CA1293463C CA000527059A CA527059A CA1293463C CA 1293463 C CA1293463 C CA 1293463C CA 000527059 A CA000527059 A CA 000527059A CA 527059 A CA527059 A CA 527059A CA 1293463 C CA1293463 C CA 1293463C
- Authority
- CA
- Canada
- Prior art keywords
- composition
- detergent
- microorganisms
- abrasive
- viable microorganisms
- 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.)
- Expired - Fee Related
Links
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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
-
- 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
- C11D3/381—Microorganisms
-
- 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
- C11D17/0013—Liquid compositions with insoluble particles in suspension
Abstract
ABSTRACT OF THE DISCLOSURE
A cleaning composition which comprises a stable suspension of abrasive particles and viable microorganisms in a water solution containing a detergent.
A cleaning composition which comprises a stable suspension of abrasive particles and viable microorganisms in a water solution containing a detergent.
Description
~934 LIOUID CLEANER_ CON~AINING VIABLE MICROORGANISMS
BACKGROUND OF THE INVENTION
Abrasive cleaners have long been utilized for cleaning. These products possess a physical "cutting"
activity that is most effective in removing stubborn stains, deposits, and scum from fixtures, sinks, toilet bovls, and other surfaces. These products are particularly useful in cleaning toilets, sinks, and other surfaces which are then rinsed with the water and discharged to the sewer collection system; holding tanks, or septic systems. Almost universally, these products are highly alkaline or acidic, causing potential damage to beneficial microorganisms in the collection lines, sewer, septic systems, or holding tanks.
In many applications this hostility to microbial activity is clearly a disadvantage.
Milder detergent products, on the other hand, which cause only minimal harm to microbial activity are generally useful only for light-duty cleaning applications including minor deposits of grease and dirt, but not including heavy mineral deposits, stains or particulates tightly adhering to fixtures, sinks, toilet bowls or other surfaces.
It is apparent that both commonly used types of cleaners such as highly alkaline, highly acidic, or milder detergent products suffer deficiencies, i.e., detrimental effect on drains, collection systems, and waste treatment systems or poor cleansing activity.
'~ rn/ !
~93~63 It is apparent that a product with strong surface cleansing properties that also actually increases microbial activity would actually extend benefits to include cleaner drain lines, and improved waste degradation. There has been a longstanding need for a product which provides the benefit of strong cleaning capabilities and actually seeds the waste collection and treatment system to improve its microbial activity instead of inhibiting activity.
SUMMARY OF THE INVENTION
The present invention comprises a stable suspension of abrasive particles and viable microorganisms or bacterial spores in a water solution containing a detergent. This composition has the advantage of being a good surface cleaning agent, and a good deep scouring agent, along with providing the beneficial effect of bacterial action to aid in sewage treatment.
DETAILED DESCRIPTION OF THE INVENTION
The composition of the present invention comprises a stable suspension of an abrasive and viable microorganisms in an aqueous detergent solution. This cleaning composition will improve the microbial activity in a waste collection or treatment system.
Abrasive particles in this case are of hydrophobic silica, however, any number of other abrasive materials, i.e., alumina and silicas such as clay, diatomaceous earth can be used as long as the pH of the suspension is stabilized within the range of about 5.0 -9Ø In general the particle size range for the abrasive is from about 100 to 325 mesh. The abrasive component provides deep scouring and cleaning. The abrasive is held in suspension by a thickener. The abrasive material is generally present in a concentration of about 2 to 20 weight percent of the composition.
Bentone EW, a water-dispersable clay manufactured by N.L. Chemicals I rac~ r7ark ~Z93463 may be used as a thickener, however, other thickeners well known to the art could also be used. The main purpose of the thickener is to keep the abrasive particles in suspension. Examples of such thickeners include many hydrophilic organic clay minerals.
The purpose of the detergent is for surface cleaning. Any suitable detergent or mixture of detergents may be used which are compatable with the other components of the composition. Typical detergents include non-ionic surfactants such as the Triton* series by Rohm ~ Haas, Igepal series by GAF, and Poly-Tergent B300* and B500* by Union Carbide all of which are nonylphenoxy polyethoxyethanol. The detergent is present in a concentration of about 1 to 20 weight percent of the composition.
Any viable microorganisms, or mixtures thereof, capable of surviving in the intended environment, and having the ability of degrading or promoting degradation of .
municipal type waste may be used with the composition of the present invention. Suitable types of organisms would includa strains of Bacillus, Pseudomonas, Arthrobacter, Enterobacter, Citrobacter and Corvnebacter. Bacillus genus is preferred because it not only has excellent waste degrading abilities but also produces a protected spore form. A preferred bacterial component includes two strains of Bacillus subtilis specifically adapted for high production of extracellular enzymes, particularly proteases, amylases, and cellulases. Such strains are common in waste treatment products.
It should be understood that bacteria of suitable mi~robial strains generally Bacillus subtilis may be specifically developed for the degradation of sanitary waste. Benefits include grease removal from drains and collection systems as well as improved degradation in treatment systems including but not limited to septic systems.
-* trade-mark rn/~l 1~93~63 The composition of the present invention must be maintained at a relatively neutral pH in order to insure proper conditions for bacteria to germinat~e and actively degrade organics. The neutral pH also is beneficial to minimize skin irritation. Preferred pH activity range of product is between about 6.0 and 8.0, however, a range of about 5.0 to 9.0 would be acceptable. Product itself may have a wider pH range if bacteria are in spore form.
A suitable concentration level of viable microorganisms is about 1.0 x 107/ml., however, much lower concentrations could be effecti~e in improving waste treatment depending on type of system to which it was introduced and amount of material used in cleaning. An operable concentration range for the microorganisms is from about 1 x 106/ml. to 1 x 109/ml. A preferred concentration is about > 5 x 106.
The following publications illustrate a variety of microorganisms which may be suitable for use in the present invention.
Technical Bulletin and Lab Report Liquid Live Microorganisms from Stero Products, P.O. Box 7269, San Antonio, TX 78285 Bryan, A.C., "How Enzymes Improve Sludge Digestion".
Public Works, 1969 ~1952), p. 83.
Ro~inson, R.R., "Enzymes Give Good Results in Sewage Treatment Plant". Public Works, (1954), pp. 85, 116.
Corder, W.A., "Controlling a Grease Problem".
ha~E Sew. Works, ~1955), pp. 102, 42.
Chambers, J.V., "Improving Waste Removal Performance Reliability of a Waste Treatment System T~rough Bioaugmentation". Proc. 36th Ind. Waste Conf., Perdue University, West Lafayette, Inc. (1981).
Young, J.C., and Clark, J.W., "Second Order Equation for BODI'. J. Sanit. Ena. Div., Proc. Am. Soc. Civ.
Enq., ~1965), pp. 91, SAl, 4232.
; ~l rn/
31~9;~
Hand, Coleen, "Bacteria Cleaning Tanks for Navy", Landmark News Service in Roanoke Times & World News, April 30, 1984, p.2.
Haner, Steve, "Va. Firm's Mutant 'Bugs' Could Be an Answer to Toxic Wastesl', Associated Press, i Washinqton Business, November 29, 1982, p. 44.
Hyde, C.S. 1981. "The Growing Business of Bacterial Cultures'l. BioCvcle. 6: p. 25-27.
"Superbugs Soothe Sewage System". Engineering News Review. ENR. 1981 6: p. 28-29.
Tamborini, S.M., Richardson, D.S., and Horsfall, F.L.
"A New Treatment for Biodegradable Waste". 40th Annual Meeting, International Water Conference, Oct. 30-Nov. 1. Pittsburgh, Pennsylvania. 1979.
Garner, C.l "Bacterial Supplementation Aids Wastewater Treatment". Public Works. 111 (3): 1980. p. 71-72.
Mazer, ~aig and Grenning, "Use of Bacteria to Reduce Clogging of Sewer Lines by Grease in Municipal Sewage", Bioloqical Control of Water Pollution.
ed. Tourbier and Piersow (University of Penna.
PressO, 1976), Chapter 28.
"Bacteria Solve Problems Created by Prisonersl', Public Works, June, 1982.
Bower, G.C., "Bacteria: Their Role in the Sewage Treatment Process'l, Proceedings of Chesapeake Water Poll. Cont. Assn., 1972.
Clean That Sewer System With Bugs", Environmental Science & Technoloav, October 1979.
Gardner, C., "Bacterial Supplementation Aids Wastewater Treatment", Public Works Ma~azine, March, 1980.
Gasner, L.L., "Microorganisms for Waste Treatment", in Micro~ial Technoloqy, 2nd Ed., Vol. II, Ed. by Peppler, H.J. and Pearlman, D. Academic Press, Inc.
1978. Chapter 10.
rn/
~3~6~
"Grease-Eaters Clear Sewers", Enqineering N~ws-Record, September 9, 1982, p. 12.
Grubbs, R.B., "Biotechnology is Taking its Place in Wastewater Treatment", Presented at Innovative and Alternative "Emerging" Technology Seminars, Sponsored by U.S. Environmental Protection Agency and Water and Wastewater Equipment Manufacturers, 1981.
Grubbs, R.B., "Bioaugmentation, What It Can and Cannot Do", 9th Engineering Foundation Conference on Environmental Engineering in the Food Processing Industry, 1979.
Grubbs, R.B., "Reducing Energy Needs Through Biotechnology", 5th Annual Convention of the Hawaii Water-Pollution Control Association, 1983.
Grubbs, R.B., "Value of Bioaugmentation for Operations and Maintenance of Wastewater Treatment Facilities", Symposium Proceedings of Wastewater Treatment Plant O & M conference sponsored by U.S. Bnvironmental Protection Agency, 1979.
Kirkup, R.A., and Nelson, L.R. "City Fights Grease and Odor Problems in Sewer System", Public Works Maqazine, October, 1977.
The operating and preferred concentration ranges for the ingredients of the present invention are as follows in weight percent:
Operatina Ranae Preferred Ranqe Abrasive 2-20% 2-6~
Detergent 1-20% 3-7%
Thickener 0.5-5% 1-2%
Antisettling Agent 0.5-5% 1-2%
Microorganisms1 x 106/ml-l x 109/ml >5x106 Water Balance Balance The following example illustrates one embodiment of the present invention. The percentages are in weight percent of the water except for the microorganisms which are defined by their concentration by number.
i~3 rn/
3~63 EXAMPLE
Into 1100 gallons tap water are added the following nutrients:
9.6 oz. yeast extract 29 ozO dextrose 9.6 oz. ammonium sulfate 40 oz. monosodium phosphate 2.2 lbs. sodium chloride This water mixture is sterilized for 30 minutes at 15 pounds pressure and 250 degrees F. The water mixture is cooled and inoculated with two selected strains of Bacillus subtilis.
One comprises a strain selected for protease production and is designated Series 300 available from Sybron Chemicals Inc. The other comprises a strain selected for amylase production and is designated Series 200 available from Sybron Chemicals Inc. The bacteria is allowed to grow for 2~ hours with aeration at 88F. ~Concentration o~ spores should be about ~ 1 x 107/ml.).
To the bacterial culture are added 0.5% perfume, and 5.0% nonionic surfactant (2.75% Poly-Tergent B300 and 2.25% Poly-Tergent B500), and 100 mg mint green dye by Hercules.
by weight of an antisettling agent (rheological additive MPA 1075* which is an olefinic polymeric complex available from N.L. ChemicaIs) is mixed into the water with high speed agitation for 2-4 hours to form a suspension.
the antisettling agent aids in enhancing the stability of the suspension. 2% by weight of hydrophillic organic clay mineral (i.e., Bentone EW*), as a thickening agent, is then mixed into the water at high speed. After a viscosity of about 1000-1500 cps is developed, 5% by weight of 160 mesh hydrophobic silica is mixed into the water until a ; homogeneous liquid mixture is formed.
:
* trade-mark rn/
1~3~63 This product has been used effectively to clean toilets. In one embodiment the product is squeezed out of a container onto a toilet brush or directly onto the side of the commode. The product is then scoured against the surface with the brush. Once the surface is clean, the product is flushed down the commode where the organisms are taken through the system to the final place of treatment. Here they help degrade sanitary waste, thereby increasing the action of the treatment system, i.e., septic tank, holding tank, etc. Once the organisms are diluted into water containing organics, they germinate and commence degradation of waste. They tend to adhere to the sidewalls of the entire collection system, forming a thin coating on all the pipes and the treatment vessel. This layer continues to grow and slough off new organisms into the system, thus, increasing the activity and helping to keep the piping and vessels free of grease and particulates. This product has been used with success in many types of collection and treatment systems including institutions, boats, city lines, etc. It also eliminates the need for chlorine containing cleaners that kill activity in treatment systems. The shelf life of the product is about two years ; if stored at temperatures between 33 and 110F.
:' While the invention has been described in detail with respect to specific embodiments thereof, it will be understood by those skilled in the art that variations and modifications may be made without departing fror ehe essential features thereof.
BACKGROUND OF THE INVENTION
Abrasive cleaners have long been utilized for cleaning. These products possess a physical "cutting"
activity that is most effective in removing stubborn stains, deposits, and scum from fixtures, sinks, toilet bovls, and other surfaces. These products are particularly useful in cleaning toilets, sinks, and other surfaces which are then rinsed with the water and discharged to the sewer collection system; holding tanks, or septic systems. Almost universally, these products are highly alkaline or acidic, causing potential damage to beneficial microorganisms in the collection lines, sewer, septic systems, or holding tanks.
In many applications this hostility to microbial activity is clearly a disadvantage.
Milder detergent products, on the other hand, which cause only minimal harm to microbial activity are generally useful only for light-duty cleaning applications including minor deposits of grease and dirt, but not including heavy mineral deposits, stains or particulates tightly adhering to fixtures, sinks, toilet bowls or other surfaces.
It is apparent that both commonly used types of cleaners such as highly alkaline, highly acidic, or milder detergent products suffer deficiencies, i.e., detrimental effect on drains, collection systems, and waste treatment systems or poor cleansing activity.
'~ rn/ !
~93~63 It is apparent that a product with strong surface cleansing properties that also actually increases microbial activity would actually extend benefits to include cleaner drain lines, and improved waste degradation. There has been a longstanding need for a product which provides the benefit of strong cleaning capabilities and actually seeds the waste collection and treatment system to improve its microbial activity instead of inhibiting activity.
SUMMARY OF THE INVENTION
The present invention comprises a stable suspension of abrasive particles and viable microorganisms or bacterial spores in a water solution containing a detergent. This composition has the advantage of being a good surface cleaning agent, and a good deep scouring agent, along with providing the beneficial effect of bacterial action to aid in sewage treatment.
DETAILED DESCRIPTION OF THE INVENTION
The composition of the present invention comprises a stable suspension of an abrasive and viable microorganisms in an aqueous detergent solution. This cleaning composition will improve the microbial activity in a waste collection or treatment system.
Abrasive particles in this case are of hydrophobic silica, however, any number of other abrasive materials, i.e., alumina and silicas such as clay, diatomaceous earth can be used as long as the pH of the suspension is stabilized within the range of about 5.0 -9Ø In general the particle size range for the abrasive is from about 100 to 325 mesh. The abrasive component provides deep scouring and cleaning. The abrasive is held in suspension by a thickener. The abrasive material is generally present in a concentration of about 2 to 20 weight percent of the composition.
Bentone EW, a water-dispersable clay manufactured by N.L. Chemicals I rac~ r7ark ~Z93463 may be used as a thickener, however, other thickeners well known to the art could also be used. The main purpose of the thickener is to keep the abrasive particles in suspension. Examples of such thickeners include many hydrophilic organic clay minerals.
The purpose of the detergent is for surface cleaning. Any suitable detergent or mixture of detergents may be used which are compatable with the other components of the composition. Typical detergents include non-ionic surfactants such as the Triton* series by Rohm ~ Haas, Igepal series by GAF, and Poly-Tergent B300* and B500* by Union Carbide all of which are nonylphenoxy polyethoxyethanol. The detergent is present in a concentration of about 1 to 20 weight percent of the composition.
Any viable microorganisms, or mixtures thereof, capable of surviving in the intended environment, and having the ability of degrading or promoting degradation of .
municipal type waste may be used with the composition of the present invention. Suitable types of organisms would includa strains of Bacillus, Pseudomonas, Arthrobacter, Enterobacter, Citrobacter and Corvnebacter. Bacillus genus is preferred because it not only has excellent waste degrading abilities but also produces a protected spore form. A preferred bacterial component includes two strains of Bacillus subtilis specifically adapted for high production of extracellular enzymes, particularly proteases, amylases, and cellulases. Such strains are common in waste treatment products.
It should be understood that bacteria of suitable mi~robial strains generally Bacillus subtilis may be specifically developed for the degradation of sanitary waste. Benefits include grease removal from drains and collection systems as well as improved degradation in treatment systems including but not limited to septic systems.
-* trade-mark rn/~l 1~93~63 The composition of the present invention must be maintained at a relatively neutral pH in order to insure proper conditions for bacteria to germinat~e and actively degrade organics. The neutral pH also is beneficial to minimize skin irritation. Preferred pH activity range of product is between about 6.0 and 8.0, however, a range of about 5.0 to 9.0 would be acceptable. Product itself may have a wider pH range if bacteria are in spore form.
A suitable concentration level of viable microorganisms is about 1.0 x 107/ml., however, much lower concentrations could be effecti~e in improving waste treatment depending on type of system to which it was introduced and amount of material used in cleaning. An operable concentration range for the microorganisms is from about 1 x 106/ml. to 1 x 109/ml. A preferred concentration is about > 5 x 106.
The following publications illustrate a variety of microorganisms which may be suitable for use in the present invention.
Technical Bulletin and Lab Report Liquid Live Microorganisms from Stero Products, P.O. Box 7269, San Antonio, TX 78285 Bryan, A.C., "How Enzymes Improve Sludge Digestion".
Public Works, 1969 ~1952), p. 83.
Ro~inson, R.R., "Enzymes Give Good Results in Sewage Treatment Plant". Public Works, (1954), pp. 85, 116.
Corder, W.A., "Controlling a Grease Problem".
ha~E Sew. Works, ~1955), pp. 102, 42.
Chambers, J.V., "Improving Waste Removal Performance Reliability of a Waste Treatment System T~rough Bioaugmentation". Proc. 36th Ind. Waste Conf., Perdue University, West Lafayette, Inc. (1981).
Young, J.C., and Clark, J.W., "Second Order Equation for BODI'. J. Sanit. Ena. Div., Proc. Am. Soc. Civ.
Enq., ~1965), pp. 91, SAl, 4232.
; ~l rn/
31~9;~
Hand, Coleen, "Bacteria Cleaning Tanks for Navy", Landmark News Service in Roanoke Times & World News, April 30, 1984, p.2.
Haner, Steve, "Va. Firm's Mutant 'Bugs' Could Be an Answer to Toxic Wastesl', Associated Press, i Washinqton Business, November 29, 1982, p. 44.
Hyde, C.S. 1981. "The Growing Business of Bacterial Cultures'l. BioCvcle. 6: p. 25-27.
"Superbugs Soothe Sewage System". Engineering News Review. ENR. 1981 6: p. 28-29.
Tamborini, S.M., Richardson, D.S., and Horsfall, F.L.
"A New Treatment for Biodegradable Waste". 40th Annual Meeting, International Water Conference, Oct. 30-Nov. 1. Pittsburgh, Pennsylvania. 1979.
Garner, C.l "Bacterial Supplementation Aids Wastewater Treatment". Public Works. 111 (3): 1980. p. 71-72.
Mazer, ~aig and Grenning, "Use of Bacteria to Reduce Clogging of Sewer Lines by Grease in Municipal Sewage", Bioloqical Control of Water Pollution.
ed. Tourbier and Piersow (University of Penna.
PressO, 1976), Chapter 28.
"Bacteria Solve Problems Created by Prisonersl', Public Works, June, 1982.
Bower, G.C., "Bacteria: Their Role in the Sewage Treatment Process'l, Proceedings of Chesapeake Water Poll. Cont. Assn., 1972.
Clean That Sewer System With Bugs", Environmental Science & Technoloav, October 1979.
Gardner, C., "Bacterial Supplementation Aids Wastewater Treatment", Public Works Ma~azine, March, 1980.
Gasner, L.L., "Microorganisms for Waste Treatment", in Micro~ial Technoloqy, 2nd Ed., Vol. II, Ed. by Peppler, H.J. and Pearlman, D. Academic Press, Inc.
1978. Chapter 10.
rn/
~3~6~
"Grease-Eaters Clear Sewers", Enqineering N~ws-Record, September 9, 1982, p. 12.
Grubbs, R.B., "Biotechnology is Taking its Place in Wastewater Treatment", Presented at Innovative and Alternative "Emerging" Technology Seminars, Sponsored by U.S. Environmental Protection Agency and Water and Wastewater Equipment Manufacturers, 1981.
Grubbs, R.B., "Bioaugmentation, What It Can and Cannot Do", 9th Engineering Foundation Conference on Environmental Engineering in the Food Processing Industry, 1979.
Grubbs, R.B., "Reducing Energy Needs Through Biotechnology", 5th Annual Convention of the Hawaii Water-Pollution Control Association, 1983.
Grubbs, R.B., "Value of Bioaugmentation for Operations and Maintenance of Wastewater Treatment Facilities", Symposium Proceedings of Wastewater Treatment Plant O & M conference sponsored by U.S. Bnvironmental Protection Agency, 1979.
Kirkup, R.A., and Nelson, L.R. "City Fights Grease and Odor Problems in Sewer System", Public Works Maqazine, October, 1977.
The operating and preferred concentration ranges for the ingredients of the present invention are as follows in weight percent:
Operatina Ranae Preferred Ranqe Abrasive 2-20% 2-6~
Detergent 1-20% 3-7%
Thickener 0.5-5% 1-2%
Antisettling Agent 0.5-5% 1-2%
Microorganisms1 x 106/ml-l x 109/ml >5x106 Water Balance Balance The following example illustrates one embodiment of the present invention. The percentages are in weight percent of the water except for the microorganisms which are defined by their concentration by number.
i~3 rn/
3~63 EXAMPLE
Into 1100 gallons tap water are added the following nutrients:
9.6 oz. yeast extract 29 ozO dextrose 9.6 oz. ammonium sulfate 40 oz. monosodium phosphate 2.2 lbs. sodium chloride This water mixture is sterilized for 30 minutes at 15 pounds pressure and 250 degrees F. The water mixture is cooled and inoculated with two selected strains of Bacillus subtilis.
One comprises a strain selected for protease production and is designated Series 300 available from Sybron Chemicals Inc. The other comprises a strain selected for amylase production and is designated Series 200 available from Sybron Chemicals Inc. The bacteria is allowed to grow for 2~ hours with aeration at 88F. ~Concentration o~ spores should be about ~ 1 x 107/ml.).
To the bacterial culture are added 0.5% perfume, and 5.0% nonionic surfactant (2.75% Poly-Tergent B300 and 2.25% Poly-Tergent B500), and 100 mg mint green dye by Hercules.
by weight of an antisettling agent (rheological additive MPA 1075* which is an olefinic polymeric complex available from N.L. ChemicaIs) is mixed into the water with high speed agitation for 2-4 hours to form a suspension.
the antisettling agent aids in enhancing the stability of the suspension. 2% by weight of hydrophillic organic clay mineral (i.e., Bentone EW*), as a thickening agent, is then mixed into the water at high speed. After a viscosity of about 1000-1500 cps is developed, 5% by weight of 160 mesh hydrophobic silica is mixed into the water until a ; homogeneous liquid mixture is formed.
:
* trade-mark rn/
1~3~63 This product has been used effectively to clean toilets. In one embodiment the product is squeezed out of a container onto a toilet brush or directly onto the side of the commode. The product is then scoured against the surface with the brush. Once the surface is clean, the product is flushed down the commode where the organisms are taken through the system to the final place of treatment. Here they help degrade sanitary waste, thereby increasing the action of the treatment system, i.e., septic tank, holding tank, etc. Once the organisms are diluted into water containing organics, they germinate and commence degradation of waste. They tend to adhere to the sidewalls of the entire collection system, forming a thin coating on all the pipes and the treatment vessel. This layer continues to grow and slough off new organisms into the system, thus, increasing the activity and helping to keep the piping and vessels free of grease and particulates. This product has been used with success in many types of collection and treatment systems including institutions, boats, city lines, etc. It also eliminates the need for chlorine containing cleaners that kill activity in treatment systems. The shelf life of the product is about two years ; if stored at temperatures between 33 and 110F.
:' While the invention has been described in detail with respect to specific embodiments thereof, it will be understood by those skilled in the art that variations and modifications may be made without departing fror ehe essential features thereof.
Claims (12)
1. A cleaning composition which comprises a stable suspension of abrasive particles and viable microorganisms capable of degrading or promoting degradation of sanitary waste in a water solution containing a detergent.
2. The composition of claim 1 in which the microorganisms are present in a concentration of about 1 x 106/ml. to 1 x 109/ml.
3. The composition of claim 1 in which the pH of the composition is maintained in the range of about 5.0 to 9Ø
4. The composition of claim 1 in which the microorganism includes at least one organism from the group consisting of Bacillus, Pseudomonas, Arthrobacter, Enterobacter, Citrobacter, and Corynebacter.
5. The composition of claim 1 in which the microorganism comprises at least one strain of Bacillus subtilis.
6. The composition of claim 1 which includes a thickener.
7. The composition of claim 6 which includes an antisettling agent.
8. A cleaning composition which comprises stable suspension of abrasive material and viable microorganisms capable of degrading or promoting degradation of sanitary waste in a water solution containing a detergent with the concentration of the microorganisms being in a range of about 1 x 106/ml. to 1 x 109/ml., said composition having a pH in the range of about 5.0 to 9Ø
9. The composition of claim 8 in which the microorganism includes at least one organism from the group consisting of Bacillus, Pseudomonas, Arthrobacter, Enterobacter, Citrobacter, and Corynebacter.
10. A cleaning composition which comprises a stable suspension of abrasive particles and viable microorganisms capable of degrading or promoting degradation of sanitary waste in a water solution containing a detergent having the following composition in weight percent:
Abrasive 2-20%
Detergent 1-20%
Microorganisms 1 x 106/ml. to 1 x 109/ml.
Water Balance
Abrasive 2-20%
Detergent 1-20%
Microorganisms 1 x 106/ml. to 1 x 109/ml.
Water Balance
11. A cleaning composition which comprises a stable suspension of abrasive particles and viable microorganisms capable of degrading or promoting degradation of sanitary waste in a water solution containing a detergent having the following composition in weight percent:
Abrasive 2-6%
Detergent 3-7%
Microorganisms 1 x 106/ml. to 1 x 109/ml.
Water Balance
Abrasive 2-6%
Detergent 3-7%
Microorganisms 1 x 106/ml. to 1 x 109/ml.
Water Balance
12. A cleaning composition which comprises a stable suspension of abrasive particles and viable microorganisms capable of degrading or promoting degradation of sanitary waste in a water solution containing a detergent having the following composition in weight percent:
Abrasive 2-20%
Detergent 1-20%
Thickener 0.5-5%
Antisettling Agent 0.5-5%
Microorganisms 1 x 106/ml. to 1 x 109/ml.
Water Balance
Abrasive 2-20%
Detergent 1-20%
Thickener 0.5-5%
Antisettling Agent 0.5-5%
Microorganisms 1 x 106/ml. to 1 x 109/ml.
Water Balance
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US841,926 | 1986-03-20 | ||
| US06/841,926 US4655794A (en) | 1986-03-20 | 1986-03-20 | Liquid cleaner containing viable microorganisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1293463C true CA1293463C (en) | 1991-12-24 |
Family
ID=25286072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000527059A Expired - Fee Related CA1293463C (en) | 1986-03-20 | 1987-01-09 | Liquid cleaner containing viable microorganisms |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4655794A (en) |
| EP (1) | EP0245560B1 (en) |
| JP (1) | JPS62225597A (en) |
| KR (1) | KR950013222B1 (en) |
| AU (1) | AU6640686A (en) |
| CA (1) | CA1293463C (en) |
| DE (1) | DE3669327D1 (en) |
| DK (1) | DK605986A (en) |
| NO (1) | NO864970L (en) |
Families Citing this family (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US2528403A (en) * | 1949-07-15 | 1950-10-31 | Max H West | Septic tank treatment of sewage |
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| US4600522A (en) * | 1982-01-22 | 1986-07-15 | At&T Technologies, Inc. | Detergent cleaning composition |
-
1986
- 1986-03-20 US US06/841,926 patent/US4655794A/en not_active Expired - Lifetime
- 1986-12-10 NO NO864970A patent/NO864970L/en unknown
- 1986-12-10 DE DE8686309599T patent/DE3669327D1/en not_active Expired - Fee Related
- 1986-12-10 AU AU66406/86A patent/AU6640686A/en not_active Abandoned
- 1986-12-10 EP EP86309599A patent/EP0245560B1/en not_active Expired - Lifetime
- 1986-12-16 DK DK605986A patent/DK605986A/en not_active Application Discontinuation
- 1986-12-22 JP JP61304029A patent/JPS62225597A/en active Pending
-
1987
- 1987-01-09 CA CA000527059A patent/CA1293463C/en not_active Expired - Fee Related
- 1987-02-04 KR KR1019870000932A patent/KR950013222B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US4655794A (en) | 1987-04-07 |
| AU6640686A (en) | 1987-09-24 |
| KR870009010A (en) | 1987-10-22 |
| NO864970D0 (en) | 1986-12-10 |
| EP0245560A1 (en) | 1987-11-19 |
| DE3669327D1 (en) | 1990-04-12 |
| DK605986A (en) | 1987-09-21 |
| DK605986D0 (en) | 1986-12-16 |
| EP0245560B1 (en) | 1990-03-07 |
| JPS62225597A (en) | 1987-10-03 |
| NO864970L (en) | 1987-09-21 |
| KR950013222B1 (en) | 1995-10-26 |
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