Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1990-06-19
1991-08-13
Silverman, Stanley S.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210709, 210724, 210747, 210749, 210906, C02F 158, C02F 152
Patent
active
050394274
ABSTRACT:
A method of treating lake water to remove suspended solids and to precipitate and inactivate phosphorus comprises adding aluminum hydroxide sulfate to the water in a concentration such that the pH of the water is maintained at a level of greater than 6.0 and precipitation of suspended solids and precipitation and inactivation of phosphorus occurs. This invention is advantageous in that it provides a method of removing suspended solids as well as precipitating and inactivating phosphorus in water while simultaneously preventing the solublizing of toxic amounts of aluminum into the water with subsequent detrimental effects to aquatic life.
REFERENCES:
patent: 4507206 (1985-03-01), Hughes
patent: 4818416 (1989-04-01), Eberhardt
patent: 4877524 (1989-10-01), Eberhardt
patent: 4882072 (1989-11-01), Eberhardt
Foy, R. H., "Phosphorus Inactivation In A Eutrophic Lake By The Direct Addition Of Ferric Aluminum Sulfate: Impact On Iron And Phosphorus," Fresh Water Biology FWBLAB, vol. 17, pp. 1-13 (Feb. 1987).
Foy, R. H., "Phosphorus Inactivation In A Eutrophic Lake By The Direct Addition Of Ferric Aluminum Sulfate: Changes in Phytoplankton Populations," Fresh Water Biology FWBLAB, vol. 17, pp. 1-13 (Feb. 1987).
Cooke, G. D., et al., "State-of-the-art Summary of Phosphorus Inactivation As A Lake Restoration Technique,", Proceedings of Workshop Of Algal Management And Control, Mar. 9-12, 1989, Pacific Grove, CA, Technical Report E-A 1-7 (May 1981).
Penz, E., et al., "New Technology For Nutrient Precipitation In Lakes,", Wasserwirtschaft-Wassertechnique, vol. 33, pp. 158-159 (May 1983).
Gibbons, M. V., et al., "Effects Of Multiphase Restoration, Particularly Aluminum Sulfate Application, On The Zooplankton Community Of A Eutrophic Lake in Eastern Washington,", Journal of Freshwater Ecology, vol. 2, pp. 393-404 (Apr. 1984).
Buergel, P. M. et al., "The Distribution And Accumulation Of Aluminum In Rainbow Trout Following A Whole-lake Alum Treatment," Journal of Freshwater Ecology, vol. 2, pp. 37-44 (Mar. 1983).
Knapp, S. M., et al., "Trout-Zooplankton Relationships In Medical Lake, Washington Following Restoration By Aluminum Sulfate Treatment," Journal of Freshwater Ecology, vol. 2, pp. 1-12, (Mar. 1983).
Norvell, W. A., "Feasibility Of Inactivating Phosphorus With Aluminum Salts In Ball Pond, CT, " Connecticut Agricultural Experiment Station Bulletin 806 (Sep. 1982).
Benedek, P., "Increasing The Degree Of Efficacy Of Wastewater Treatment," Gas-Wasserfach Wasser-Abwasser, vol. 122, pp. 572-581 (Dec. 1981).
Cooke, G. D., et al., "Change In Lake Trophic State And Internal Phosphorus Release After Aluminum Sulfate Application," Water Resources Bulletin, vol. 18, pp. 699-705 (Aug. 1982).
Kennedy, R. H., et al., "Control of Lake Phosphorus With Aluminum Sulfate: Dose Determination And Application Techniques," Water Resources Bulletin, vol. 18, pp. 389-395 (Jun. 1982).
Nyholm, N., et al., "Restoration of Lake Nakskov Indrefjord, Denmark, Using Algal Ponds To Remove Nutrients From Inflowing River Water," Progress in Water Technology, vol. 10, pp. 881-892 (1978).
Sonnichsen, T., "Toxicity of A Phosphate-Reducing Agent (Aluminum Sulfate) On The Zooplankton In The Lake Lyngby," Proceedings Of The 20th Congress, International Vereinigung Fur Theoretische Und Angewandte Limnologie, Copenhagen, Denmark (Aug. 8, 1977), vol. 20, pp. 709-713 (Sep. 1978).
Pagel, C. W., et al., "An Investigation Of The Effects Of Pulp And Paper Effluent On The Macrobenthic Community In Southern Lake Champlain, U.S.A., " in: Proceedings Of The 20th Congress, Internationale Vereinigung Fur Theoretische Und Angewandte Limnologie. Copenhagen, Denmark (Aug. 8, 1977), vol. 20, pp. 510-513.
Cooke, G. D., "Evaluation Of Aluminum Sulfate For Phosphorus Control In Eutrophic Lakes," NTIS Report PB-292 (Jan. 1979).
Cooke, G. D., et al., "Effects Of Diversion And Alum Application On Two Eutrophic Lakes," EPA Report 600/3-78-033 (Mar. 1978).
Cooke, G. D., et al., "Limnological And Geochemical Characteristics Of The Twin Lakes," in: North American Project-A Study Of U.S. Water Bodies, EPA Publication No. 600/3-77-086 (Jul. 1977).
Bulson, P. C., et al., "Removal And Inactivation Of Bacteria During Alum Treatment Of A Lake," Appl. Environ. Microbiol., vol. 48, pp. 425-430 (1984).
Zarini, S., et al., "Effects Produced By Aluminum In Fresh Water Communities Studied By Enclosure Method," Environ. Technol. Lett., vol. 4, pp. 247-256 (1983).
Canfield, C., et al., "Mother Nature As Sludge Thickener," Water Eng. & Mgmt., vol. 129, pp. 22-24 (1982).
"Alum Control Of Internal Phosphorus Loading In A Shallow Lake," Water Resources Bulletin, vol. 18, pp. 929-936 (1982).
"Lake Restoration: A Five-Year Evaluation Of The Mirror And Shadow Lakes; Project Waupaca, WI," (Available from NTIS as PB83-176578).
"The Influence Of Algal Growth And Other Ecological Factors And Reservoirs On The Production And Control Of Trihalo Methane Precursors," (Available from NTIS as PB83-140012).
"Preliminary Assessment Of Multiphase Restoration Efforts At Liberty Lake, WA," (Available from NTIS as PB82-188251).
"Acute and Chronic Effects Of Alum To Midge Larva (Diptera: Chironomidae)," Bulletin Environmental Contamination And Toxicology, vol. 27, pp. 59-67 (1981).
"Precipitation And Inactivation Of Phosphorus As A Lake Restoration Technique," (Available from NTIS as PB81-196511).
"The Application Of Limestone And LimeDust In Abatement Of Acidic Drainage In Centre County, PA,"(Available from NTIS as PB81-180515).
"The Effects Of Calcium, Alum And PH On The Removal Of Naturally Occurring Manganese By Rapid Sand Filtration," (Available from NTIS as PB80-135148).
General Chemical Corporation
McCarthy Neil M.
Silverman Stanley S.
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