Compositions and methods for water treatment
First Claim
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1. A method for treating water contaminated with algae, suspended solids, or toxic heavy metal compounds, said method comprising the steps:
- (a) adding to the water a soluble metal salt flocculent in a quantity of between 5-100 milligrams per liter of the water;
(b) adding to the water 50-2000 milligrams of coccolithic calcium carbonate per liter of water; and
(c) forming a floc including said algae, suspended solids, or toxic heavy metal compounds in said water at a pH of at least about 7.0.
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Abstract
Materials and methods relating to water treatment processes are described. More specifically, the process is non-toxic and is useful for the removal of algae, other suspended solids, or contaminants in surface waters or in potable water treatment. Coccolithic calcium carbonate can be used in combination with a flocculent such as aluminum chloride to obtain the desired results.
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11 Claims
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1. A method for treating water contaminated with algae, suspended solids, or toxic heavy metal compounds, said method comprising the steps:
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(a) adding to the water a soluble metal salt flocculent in a quantity of between 5-100 milligrams per liter of the water; (b) adding to the water 50-2000 milligrams of coccolithic calcium carbonate per liter of water; and (c) forming a floc including said algae, suspended solids, or toxic heavy metal compounds in said water at a pH of at least about 7.0. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for forming a floc in water, said process comprising
(a) providing water having a culture of algae growing therein; -
(b) adding to the water 50-2000 milligrams coccolithic calcium carbonate per liter of water; (C) adding to the water a soluble metal salt flocculent in a quantity of between 5-100 milligrams per liter of water; and
(d) forming a floc including said algae in said water at a pH of at least about 7.0. - View Dependent Claims (11)
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Specification