发明名称 |
NITRATE FORMING NITRIFICATION/DENITRIFICATION METHOD, METHOD FOR NITRIFYING/DENITRIFYING AMMONIA NITROGEN-CONTAINING LIQUID AND NITRATE FORMING NITRIFICATION/DENITRIFICATION EQUIPMENT |
摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a nitrification/denitrification method in which a nitrite forming nitrification reaction is carried out at all times even when a flow rate is fluctuated. <P>SOLUTION: An ammonia nitrogen-containing liquid P1 higher than the predetermined temperature is fed to a reaction tank 2 in which the diffusion and non-diffusion of air are repeated in a predetermined cycle. The diffusion time of air is changed according to the fluctuation of the flow rate of the ammonia nitrogen-containing liquid P1 so that the hydraulic residence time of the ammonia nitrogen-containing liquid to be diffused by air is not fluctuated substantially. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
申请公布号 |
JP2006289277(A) |
申请公布日期 |
2006.10.26 |
申请号 |
JP20050114707 |
申请日期 |
2005.04.12 |
申请人 |
TSUKISHIMA KIKAI CO LTD;GRONTMIJ NEDERLAND BV |
发明人 |
KONDO HIROMASA;NAKABAYASHI AKIRA;SHUKUNOBE AOI;TAKAHASHI MASAZUMI;VAN KEMPEN ROGIER NICOLAAS ANTONIUS |
分类号 |
C02F3/34;C02F3/20 |
主分类号 |
C02F3/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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