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1. 发明专利

JP2011224466A Metal ion-containing wastewater treatment method 有权
标题翻译：含金属废水处理方法
公开(公告)号：JP2011224466A
公开(公告)日：2011-11-10
申请号：JP2010096656
申请日：2010-04-20
申请人： Nippon Steel Corp , Nittetsu Kankyo Engineering Kk , 新日本製鐵株式会社 , 日鉄環境エンジニアリング株式会社
发明人： SHINOZAKI TAKAYUKI , TOYODA HIROYOSHI , MORIKAZU SHINGO , HIRATA SHOICHI
IPC分类号： C02F1/74 , C01G49/02 , C02F1/52
摘要： PROBLEM TO BE SOLVED: To provide a metal ion-containing wastewater treatment method which can efficiently separate dissolved iron and the like from the beginning of start-up, is easy in sludge treatment, and suppresses increase of equipment cost and running cost, in treatment of wastewater mainly containing dissolved iron.SOLUTION: The metal ion-containing wastewater treatment method includes a treatment system for treating raw water mainly containing dissolved iron, and a preparation system of δ-FeO(OH) for generating fine crystal particles of δ-FeO(OH) used in the treatment system. The treatment system has a reaction process for performing the oxidation treatment of the raw water in a reaction tank to generate metal hydroxides including iron hydroxides, and a separation process for settling and separating the iron hydroxides in a settling tank. When the treatment system is started up, an alkali agent and an oxidizing agent are added to an iron-based reagent containing divalent iron and they are mixed and reacted to generate the fine crystal particles of δ-FeO(OH) in the preparation system of δ-FeO(OH). The fine crystal particles are immediately added into the reaction tank to be used as an oxidation catalyst, and oxidative treatment in the reaction process is performed by air oxidation.
摘要翻译：要解决的问题：为了提供从启动开始就可以有效地分离溶解铁等的含金属离子的废水处理方法，污泥处理容易，抑制了设备成本和运行成本的增加，主要处理含有溶解铁的废水。解决方案：含金属离子的废水处理方法包括用于处理主要含有溶解铁的原水的处理系统，以及用于产生δ-FeO（OH）的细晶粒子的δ-FeO（OH）的制备系统在治疗系统中。处理系统具有对反应罐中的原水进行氧化处理以产生包括氢氧化铁的金属氢氧化物的反应方法和用于在沉降槽中沉淀和分离氢氧化铁的分离方法。当处理系统启动时，将碱剂和氧化剂加入到含有二价铁的铁基试剂中，并将其混合并反应，以在制备体系中产生δ-FeO（OH）的细晶粒子 δ-的FeO（OH）。立即将微细晶体颗粒加入到反应槽中以用作氧化催化剂，并通过空气氧化进行反应过程中的氧化处理。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2008119655A Organic waste water treatment method and chemical used for this method 有权
标题翻译：有机废水处理方法和化学方法
公开(公告)号：JP2008119655A
公开(公告)日：2008-05-29
申请号：JP2006309240
申请日：2006-11-15
申请人： Nittetsu Kankyo Engineering Kk , 日鉄環境エンジニアリング株式会社
发明人： OKAMOTO YOSHIHIRO , HIRATA SHOICHI
IPC分类号： C02F3/12 , C02F11/06
CPC分类号： Y02W10/15
摘要： PROBLEM TO BE SOLVED: To provide a simple and economical organic waste water treatment method using activated sludge which can greatly reduce the amount of generated surplus sludge to reduce cost required for treatment of the surplus sludge without deteriorating the quality of treated water released at the final stage, and can minimize increase in a treatment system area and treatment time. SOLUTION: In the organic waste water treatment method for purifying organic waste water using activated sludge, a part of bacteria composing the activated sludge used for purification treatment is oxidatively decomposed at a treatment temperature of 100-250°C under a container pressure of 0.1-4.0 MPa by adding an oxidizing agent to perform sterilization or lysis, thereby the purification treatment is carried out while inhibiting the growth of bacteria in the activated sludge in a purification process. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供使用活性污泥的简单经济的有机废水处理方法，其可以大大减少产生的剩余污泥的量以降低处理剩余污泥所需的成本，而不会降低释放的处理水的质量在最后阶段，可以最大限度地减少治疗系统面积和治疗时间的增加。解决方案：在使用活性污泥净化有机废水的有机废水处理方法中，构成用于净化处理的活性污泥的一部分细菌在100-250℃的处理温度下在容器压力下氧化分解通过添加氧化剂进行灭菌或裂解，从而在净化处理中抑制活性污泥中的细菌生长的同时进行纯化处理。版权所有（C）2008，JPO＆INPIT

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