JP2002086190A5 - - Google Patents

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Publication number
JP2002086190A5
JP2002086190A5 JP2000275825A JP2000275825A JP2002086190A5 JP 2002086190 A5 JP2002086190 A5 JP 2002086190A5 JP 2000275825 A JP2000275825 A JP 2000275825A JP 2000275825 A JP2000275825 A JP 2000275825A JP 2002086190 A5 JP2002086190 A5 JP 2002086190A5
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JP
Japan
Prior art keywords
calcium
fluorine
removing device
filter
calcium fluoride
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JP2000275825A
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Japanese (ja)
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JP2002086190A (en
JP4685224B2 (en
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Priority to JP2000275825A priority Critical patent/JP4685224B2/en
Priority claimed from JP2000275825A external-priority patent/JP4685224B2/en
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Publication of JP2002086190A5 publication Critical patent/JP2002086190A5/ja
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Publication of JP4685224B2 publication Critical patent/JP4685224B2/en
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また、フッ素除去装置として、粒状炭酸カルシウムを充填した塔を設け、ここにフッ素含有排水を流通することで、炭酸カルシウムをフッ化カルシウムに置換する形式のものが知られている。このようなフッ素除去装置を利用することもできる。さらに、粒状炭酸カルシウムではなく、砂などのろ材を充填しておき、排水に水酸化カルシウムや塩化カルシウムを添加した後にろ材充填槽に通流させることにより、このろ材の表面にフッ化カルシウムを晶析によって順次析出させて除去するものを採用することもできる。
As a fluorine removing device, there is known a type in which a column filled with granular calcium carbonate is provided, and calcium fluoride is replaced with calcium fluoride by flowing a fluorine-containing wastewater therethrough. Such a fluorine removing device can also be used. Further, instead of the particulate calcium carbonate in advance by filling a filter material such as sand, by flow through the filter ZaiTakashi Hama bath after addition of calcium or calcium chloride hydroxide effluent, the calcium fluoride to the surface of the filter medium It is also possible to employ one that is sequentially precipitated and removed by crystallization.

JP2000275825A 2000-09-12 2000-09-12 Waste water treatment method and waste water treatment equipment Expired - Lifetime JP4685224B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000275825A JP4685224B2 (en) 2000-09-12 2000-09-12 Waste water treatment method and waste water treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000275825A JP4685224B2 (en) 2000-09-12 2000-09-12 Waste water treatment method and waste water treatment equipment

Publications (3)

Publication Number Publication Date
JP2002086190A JP2002086190A (en) 2002-03-26
JP2002086190A5 true JP2002086190A5 (en) 2007-07-26
JP4685224B2 JP4685224B2 (en) 2011-05-18

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Family Applications (1)

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JP2000275825A Expired - Lifetime JP4685224B2 (en) 2000-09-12 2000-09-12 Waste water treatment method and waste water treatment equipment

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI449674B (en) 2004-12-14 2014-08-21 Kurita Water Ind Ltd Drainage treatment device and treatment method
JP4834993B2 (en) * 2004-12-27 2011-12-14 栗田工業株式会社 Waste water treatment apparatus and treatment method
JP4765308B2 (en) * 2004-12-14 2011-09-07 栗田工業株式会社 Nitrogen compound and inorganic ion-containing wastewater treatment apparatus and treatment method
JP4865211B2 (en) * 2004-12-15 2012-02-01 オルガノ株式会社 Waste water treatment apparatus and biological treatment method of waste water
CN103663843B (en) * 2012-09-06 2015-05-13 中国石油化工股份有限公司 Treatment method of p-aminodiphenylamine production device wastewater
CN103663846B (en) * 2012-09-07 2015-07-22 中国石油化工股份有限公司 Method for accumulating nitrite nitrogen by performing short-cut denitrification on p-aminodiphenyl amine production wastewater
EP2980584B1 (en) 2013-03-29 2018-09-12 Mitsubishi Electric Corporation Method for checking water quality, water quality checking device, and hot-water feeder system
CN104250053B (en) * 2013-06-27 2016-01-13 中国石油化工股份有限公司 A kind of process is containing the method for ammonia nitrogen mutual-amido two polyaniline factory effluent
WO2014207198A1 (en) * 2013-06-28 2014-12-31 Krüger A/S An apparatus for treating raw water by microbial nitrification
KR101951885B1 (en) * 2017-07-05 2019-02-25 (주)큐앤테크 Measurement method for mixed liquor suspended solids

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54108461A (en) * 1978-02-15 1979-08-25 Mitsui Miike Mach Co Ltd Method of denitrifying high concentration nitrogen contained waste water
JPS6054784A (en) * 1983-09-05 1985-03-29 Kurita Water Ind Ltd Treatment of organic waste water containing fluorine
JP2953835B2 (en) * 1991-11-07 1999-09-27 中部電力株式会社 Biological nitrification and denitrification equipment
JP3202510B2 (en) * 1994-11-21 2001-08-27 オルガノ株式会社 Equipment for treating wastewater containing nitrogen and fluorine
JP3870445B2 (en) * 1996-05-31 2007-01-17 栗田工業株式会社 Biological treatment equipment

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