SOLID COMPOSITION FOR TREATING WATER
Solid water treatment compositions are provided comprising (a) a halogen-containing source; (b) a boron-containing source; and (c) a polyphosphate-containing source. Methods for their use are also provided.
1 . A solid water treatment composition comprising (a) a halogen-containing source; (b) a boron-containing source; and (c) a polyphosphate-containing source.
2 . The solid water treatment composition of claim 1 , wherein the halogen-containing source comprises one or more of a halogenated triazinetrione, halogenated hydantoin, calcium hypochlorite and lithium hypochlorite.
3 . The solid water treatment composition of claim 1 , wherein the halogen-containing source comprises one or more of a trichloro-s-triazinetrione, sodium dichloro-s-triazinetrione and potassium dichloro-s-triazinetrione.
4 . The solid water treatment composition of claim 1 , wherein the halogen-containing source comprises trichloro-s-triazinetrione.
5 . The solid water treatment composition of claim 1 , wherein the boron-containing source comprises one or more of boric acid or boric oxide.
6 . The solid water treatment composition of claim 1 , wherein the polyphosphate-containing source comprises one or more of sodium hexametaphosphate, sodium polyphosphate, sodium tripolyphosphate and sodium pyrophosphate.
7 . The solid water treatment composition of claim 1 , wherein the halogen-containing source comprises trichloro-s-triazinetrione, the boron-containing source comprises boric acid and the polyphosphate-containing source comprises sodium hexametaphosphate.
8 . The solid water treatment composition of claim 1 , wherein the halogen-containing source is present in the composition in an amount of about 65 to about 98 weight percent, based on the total weight of the composition.
9 . The solid water treatment composition of claim 1 , wherein the halogen-containing source is present in the composition in an amount of about 85 to about 95 weight percent, based on the total weight of the composition.
10 . The solid water treatment composition of claim 1 , wherein the boron-containing source is present in the composition in an amount of about 0.2 to about 2.5 weight percent, based on the total weight of the composition.
11 . The solid water treatment composition of claim 1 , wherein the boron-containing source is present in the composition in an amount of about 0.5 to about 1.5 weight percent, based on the total weight of the composition.
12 . The solid water treatment composition of claim 1 , wherein the polyphosphate-containing source is present in the composition in an amount of about 1 to about 10 weight percent, based on the total weight of the composition.
13 . The solid water treatment composition of claim 1 , wherein the polyphosphate-containing source is present in the composition in an amount of about 4 to about 7 weight percent, based on the total weight of the composition.
14 . The solid water treatment composition of claim 1 , in the form of a tablet, puck or a stick.
15 . The solid water treatment composition of claim 1 , wherein the halogen-containing source is present in the composition in an amount of about 85 to about 95 weight percent, the boron-containing source is present in the composition in an amount of about 0.2 to about 2.5 weight percent, and the polyphosphate-containing source is present in the composition in an amount of about 1 to about 10 weight percent, based on the total weight of the composition.
16 - 25 . (canceled)
26 . A solid water treatment composition comprising (a) about 65 to about 98 weight percent of a N-halogenated compound; (b) a boron-containing source; and (c) a polyphosphate-containing source.
27 . The solid water treatment composition of claim 26 , wherein the N-halogenated compound comprises one or more of a halogenated triazinetrione or a halogenated hydantoin.
28 . The solid water treatment composition of claim 27 , wherein the N-halogenated compound comprises one or more of a trichloro-s-triazinetrione, sodium dichloro-s-triazinetrione and potassium dichloro-s-triazinetrione.
29 . The solid water treatment composition of claim 28 , wherein the N-halogenated compound comprises trichloro-s-triazinetrione.
30 . The solid water treatment composition of claim 26 , wherein the boron-containing source comprises one or more of boric acid or boric oxide.
31 . The solid water treatment composition of claim 26 , wherein the polyphosphate-containing source comprises one or more of sodium hexametaphosphate, sodium polyphosphate, sodium tripolyphosphate and sodium pyrophosphate.
32 . The solid water treatment composition of claim 26 , wherein the N-halogenated compound comprises trichloro-s-triazinetrione, the boron-containing source comprises boric acid and the polyphosphate-containing source comprises sodium hexametaphosphate.
33 . The solid water treatment composition of claim 26 , wherein the N-halogenated compound is present in the composition in an amount of about 85 to about 95 weight percent, the boron-containing source is present in the composition in an amount of about 0.2 to about 2.5 weight percent, and the polyphosphate-containing source is present in the composition in an amount of about 1 to about 10 weight percent, based on the total weight of the composition.
34 . A solid water treatment composition comprising (a) about 65 to about 98 weight percent of trichloro-s-triazinetrione, (b) a boron-containing source; and (c) a polyphosphate-containing source.
35 . The solid water treatment composition of claim 34 , wherein the boron-containing source comprises one or more of boric acid or boric oxide.
36 . The solid water treatment composition of claim 34 , wherein the polyphosphate-containing source comprises one or more of sodium hexametaphosphate, sodium polyphosphate, sodium tripolyphosphate and sodium pyrophosphate.
37 . The solid water treatment composition of claim 34 , wherein the boron-containing source comprises boric acid and the polyphosphate-containing source comprises sodium hexametaphosphate.
38 . The solid water treatment composition of claim 34 , wherein the trichloro-s-triazinetrione is present in the composition in an amount of about 85 to about 95 weight percent, the boron-containing source is present in the composition in an amount of about 0.2 to about 2.5 weight percent, and the polyphosphate-containing source is present in the composition in an amount of about 1 to about 10 weight percent, based on the total weight of the composition.
39 . A solid water treatment composition comprising from about 65 to about 98 weight percent trichloro-s-triazinetrione, from about 0.2 to about 2.5 weight percent boric acid, and from about 1 to about 10 weight percent sodium hexametaphosphate, based on the total weight of the composition.
40 . The solid water treatment composition of claim 39 , wherein the trichloro-s-triazinetrione is present in an amount of about 85 to about 95 weight percent.
41 . The solid water treatment composition of claim 39 , wherein the boric acid is present in an amount of about 0.5 to about 1.5 weight percent.
42 . The solid water treatment composition of claim 39 , wherein the sodium hexametaphosphate is present in an amount of about 4 to about 7 weight percent.