| 摘要 |
<p>The present invention enables slime control by adding an optimal oxidant in a paper pulp manufacturing process for which the stock material is used paper, which includes a considerable amount of reducing substances and dissolved organic matter, thus preventing decomposition of inorganic chlorine bactericide and exerting high bactericidal efficacy with less of the inorganic bactericide added. An inorganic bactericide generated from hypochlorous acid (salt) and ammonium salt and chlorous acid (salt) are added to an aqueous system for a paper pulp manufacturing process for which the stock material is used paper. The inorganic bactericide generated from hypochlorous acid (salt) and ammonium salt is added after the chlorous acid (salt) has been added. Alternatively, the chlorous acid (salt) is added further upstream in the manufacturing process than the addition of the inorganic bactericide generated from hypochlorous acid (salt) and ammonium salt.</p> |
