Patent ID: 7361263
Filing Date: 2008-04-22
Classification: C02F

Abstract:
1. A water treatment method comprising: applying water to be treated, including a pharmaceutical drug of at least one of a sterilant, anticancer drug, and antibiotic, into storage means storing water to be treated; applying current to a pair of electrodes for electrolysis of said water to be treated to decompose or alter at least a portion of a chemical structure of said pharmaceutical drug in said water to be treated applied into said storage means for eliminating or reducing at least one of a bactericidal action, disinfection, carcinogenicity, cytotoxicity, mutagenicity, teratogenicity, spermatoxicity, and antibacterial activity of said pharmaceutical drug; and separating solid precipitates and sludge generated by electrolysis of said pharmaceutical drug or a substance other than the pharmaceutical drug included in said water to be treated from said pair of electrodes by removing solid precipitates and sludge from said storage means, wherein said water to be treated includes halide ions; said step of applying water to be treated includes the step of adjusting an amount of said water to be treated applied to said storage means by controlling opening/closure of an inlet valve through which the water to be treated that flows into said storage means passes and an output valve through which the water discharged from said storage means passes; and in said step of separating solid precipitates and sludge, said solid precipitates and sludge are removed by opening a drain valve with which a drain opening at the bottom of said storage means is provided.