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1. 发明专利

JP2010207785A Wastewater treatment method and wastewater treatment apparatus 有权
标题翻译：废水处理方法和废水处理装置
公开(公告)号：JP2010207785A
公开(公告)日：2010-09-24
申请号：JP2009060017
申请日：2009-03-12
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： TOYODA SAYURI , OKAMOTO YOSHIHIRO
IPC分类号： C02F3/34 , C02F3/12
CPC分类号： Y02W10/15
摘要： PROBLEM TO BE SOLVED: To provide a wastewater treatment method and a wastewater treatment apparatus for solving the problem of a conventional technology utilizing anammox bacteria and efficiently treating wastewater having organic matters and ammonia nitrogen without leaving nitrate in treated water. SOLUTION: The wastewater treatment method for cleaning raw water containing the organic matters and the ammonia nitrogen includes: a process A which is an organic matter decomposing process of introducing the raw water to a bacteria tank for performing aerobic treatment by bacteria practically under absence of protozoa, performing bacteria treatment, biodegrading the organic matters in the wastewater by the bacteria, and removing increased bacteria by solid-liquid separation treatment; a process B of oxidizing a part of ammonia nitrogen in the treated water obtained in the process A into nitrite nitrogen by ammonia oxidizing bacteria under an aerobic condition; and a process C of denitrifying the treated water containing the nitrite nitrogen oxidized in the process B and the ammonia nitrogen which is not oxidized into the nitrite nitrogen in the process B inside a denitrification tank under an anaerobic condition by autotrophic denitirifying bacteria. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种废水处理方法和废水处理装置，用于解决使用氨氧化菌的常规技术的问题，并有效地处理具有有机物质和氨氮的废水，而不会在处理水中离开硝酸盐。解决方案：用于清洁含有有机物和氨氮的原水的废水处理方法包括：方法A，其是将原水引入细菌罐的有机物分解过程，以进行实际上由细菌进行的有氧处理不存在原生动物，进行细菌处理，细菌对废水中的有机物进行生物降解，并通过固液分离处理除去细菌; 在有氧条件下，通过氨氧化细菌将在方法A中获得的处理水中的一部分氨氮氧化成亚硝酸盐氮的方法B; 以及在厌氧条件下通过自养脱硝细菌使含有方法B中被氧化的亚硝酸盐氮的处理水脱氮的方法C和在厌氧条件下的反硝化池内的方法B中未被氧化成亚硝酸盐氮的氨氮。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2010036074A Organic wastewater treatment method 有权
标题翻译：有机废水处理方法
公开(公告)号：JP2010036074A
公开(公告)日：2010-02-18
申请号：JP2008199669
申请日：2008-08-01
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： TOYODA SAYURI , OKAMOTO YOSHIHIRO
IPC分类号： C02F3/12 , C02F3/34 , C02F11/00 , C02F11/14
CPC分类号： Y02W10/15
摘要： PROBLEM TO BE SOLVED: To provide a simple and economical organic wastewater treatment method which can more reduce the amount of surplus sludge than the conventional method without deteriorating the water quality of treated water discharged in the final stage to enable a reduction of cost for surplus sludge treatment. SOLUTION: In the organic wastewater treatment method having a sludge solubilization process where a part of sludge solid-liquid separated in a settling tank is extracted and solubilized in activated sludge treatment and the solubilized sludge is returned again into an aeration tank to be subjected to purification treatment, sludge in the amount 1-3 times that of sludge propagated by organic matter treatment in the aeration tank is extracted from the settling tank and the extracted sludge is treated with acid and alkali in parallel or series in the sludge solubilization process, and then, when the treated sludge is returned into the aeration tank, a volume ratio of the amount of the acid-treated sludge to that of the alkali-treated sludge is adjusted to 1:1 to 1:6. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种简单经济的有机废水处理方法，其可以比常规方法更多地减少剩余污泥的量，而不会降低在最后阶段排出的处理水的水质，以降低成本用于多余的污泥处理。解决方案：在具有污泥溶解过程的有机废水处理方法中，将沉淀池中分离的一部分污泥固液萃取并溶解在活性污泥处理中，将溶解的污泥再次返回到曝气池中进行净化处理，从沉淀池中提取曝气池中通过有机物处理传播的污泥的1-3倍的污泥，并将提取的污泥与酸和碱平行或串联在污泥溶解过程中进行处理然后将处理过的污泥返回到曝气池中时，酸处理污泥的量与碱处理污泥的体积比调整为1:1〜1:6。版权所有（C）2010，JPO＆INPIT

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