Electrolytic method and cell for sterilizing water
First Claim
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1. A method for electrolytically sterilizing or disinfecting water comprising the following steps:
- (a) obtain an aqueous electrolytic solution;
(b) introduce the electrolytic solution into an electrolytic cell, when provided, wherein said electrolytic cell comprises;
(i) an anode, wherein the electrolytic surface of said anode comprises a Group VIII metal or a compound thereof;
(ii) an anode area comprising a chamber at said anode;
(iii) a cathode, wherein the electrolytic surface of said cathode comprises a conducting meterial;
(iv) a cathode area comprising a chamber at said cathode;
(v) at least one inlet for introducing an electrolytic solution, when provided, into said cell;
(vi) an outlet for allowing aqueous effluent from said anode to exit said electrolytic cell;
(vii) an outlet for allowing aqueous effluent from said cathode to exit said electrolytic cell;
(viii) sealing means positioned between said anode and said cathode for sealing said cell; and
(ix) flow restricting means comprising a barrier positioned between said anode and said cathode, said barrier comprising aperture means, said aperture means being large but smaller in total cross-sectional area than either said anode or said cathode, said barrier thereby comprising at least one flow restricing body portion which extends into said cell for restrictively allowing the electrolytic solution to flow between said anode and said cathode through said aperture means;
(c) withdraw aqueous effluent from said anode area of said electrolytic cell; and
(d) introduce the aqueous anode effluent into the contaminated water to be treated.
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Abstract
Electrolytic cell and low-voltage method for sterilizing water. The electrolytic cell of the invention contains a cathode and an anode which produce oxidants to effect sterilization of contaminated water. The anode is made of a Group VIII metal or compound thereof which acts as a catalyst to produce oxidants. In the method of the invention, a salt solution is introduced into the electrolytic cell, oxidants are produced in solution, and the anode effluent stream is introduced directly into the water to be treated.
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Citations
21 Claims
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1. A method for electrolytically sterilizing or disinfecting water comprising the following steps:
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(a) obtain an aqueous electrolytic solution; (b) introduce the electrolytic solution into an electrolytic cell, when provided, wherein said electrolytic cell comprises; (i) an anode, wherein the electrolytic surface of said anode comprises a Group VIII metal or a compound thereof; (ii) an anode area comprising a chamber at said anode; (iii) a cathode, wherein the electrolytic surface of said cathode comprises a conducting meterial; (iv) a cathode area comprising a chamber at said cathode; (v) at least one inlet for introducing an electrolytic solution, when provided, into said cell; (vi) an outlet for allowing aqueous effluent from said anode to exit said electrolytic cell; (vii) an outlet for allowing aqueous effluent from said cathode to exit said electrolytic cell; (viii) sealing means positioned between said anode and said cathode for sealing said cell; and (ix) flow restricting means comprising a barrier positioned between said anode and said cathode, said barrier comprising aperture means, said aperture means being large but smaller in total cross-sectional area than either said anode or said cathode, said barrier thereby comprising at least one flow restricing body portion which extends into said cell for restrictively allowing the electrolytic solution to flow between said anode and said cathode through said aperture means; (c) withdraw aqueous effluent from said anode area of said electrolytic cell; and (d) introduce the aqueous anode effluent into the contaminated water to be treated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An electrolytic cell for sterilizing or disinfecting water comprising:
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(a) an anode, wehrein the electrolytic surface of said anode comprises a Group VIII metal or a compound thereof; (b) an anode area comprising a chamber at said anode; (c) a cathode, wherein the electrolytic surface of said cathode comprises a conducting material; (d) a cathode area comprising a chamber at said cathode; (e) at least one inlet for introducing an electrolytic solution, when provided, into said cell; (f) at least one outlet for allowing effluent to exit said cell; (g) sealing means positioned between said anode and said cathode for sealing said cell; and (h) flow restricting means comprising a barrier positioned between said anode and said cathode, said barrier comprising aperture means, said aperture means being large but smaller in total cross-sectional area than either said anode or said cathode, said barrier thereby comprising at least one flow restricting body portion which extends into said cell for restrictively allowing the electrolytic solution to flow between said anode and said cathode through said aperture means. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification