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公开(公告)号:US20210387886A1
公开(公告)日:2021-12-16
申请号:US17417485
申请日:2019-07-12
申请人: ORGANO CORPORATION
发明人: Hiro YOSHIKAWA , Yudai SUZUKI , Masahiro EGUCHI
IPC分类号: C02F9/00
摘要: Provided is a sterilization method for a water system, the sterilization method being capable of suppressing the production amount of a nitrosamine compound while exhibiting a sufficient sterilization effect in precursor-containing water that contains a nitrosamine compound precursor. In the sterilization method for a water system, a stabilizing composition containing a bromine-based oxidizing agent or a chlorine-based oxidizing agent and a sulfamic acid compound is added to the precursor-containing water that contains the nitrosamine compound precursor.
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公开(公告)号:US20170044029A1
公开(公告)日:2017-02-16
申请号:US15306647
申请日:2015-02-17
申请人: ORGANO CORPORATION
发明人: Toru NAKANO , Yudai SUZUKI , Hiro YOSHIKAWA
CPC分类号: C02F1/441 , B01D61/025 , B01D61/04 , B01D61/145 , B01D61/58 , B01D65/02 , B01D2311/04 , B01D2311/12 , B01D2311/2649 , B01D2321/02 , B01D2321/04 , B01D2321/162 , B01D2321/164 , B01D2321/168 , B01D2321/18 , C02F1/442 , C02F1/444 , C02F1/766 , C02F2101/30 , C02F2209/06 , C02F2305/02 , B01D2311/18
摘要: This filtration treatment system is provided with a membrane filtration device as a prefiltration treatment device for removing insoluble components from the water to be treated containing organic substance, a reverse osmosis membrane treatment device for subjecting the prefiltration-treated water to reverse osmosis membrane treatment, and a chemical agent supply pipe for supplying a chemical agent into the membrane filtration device, wherein the chemical agent contains a sulfamic acid compound, and a bromine-based oxidizing agent or the reaction product of a bromine compound with a chlorine-based oxidizing agent, or, contains the reaction product of a sulfamic acid compound with a bromine-based oxidizing agent or with the reaction product of a bromine compound with a chlorine-based oxidizing agent.
摘要翻译: 该过滤处理系统具有膜过滤装置,作为从含有机物质的被处理水中除去不溶成分的预处理装置,对经过预处理的水进行反渗透膜处理的反渗透膜处理装置,以及 用于向膜过滤装置供给化学试剂的化学试剂供给管,其中所述化学试剂含有氨基磺酸化合物和溴系氧化剂或溴化合物与氯系氧化剂的反应产物,或 含有氨基磺酸化合物与溴系氧化剂的反应产物,或溴化合物与氯系氧化剂的反应产物。
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