Title:
非晶質けい酸カルシウム水和物による排水処理システム
Document Type and Number:
Japanese Patent JP5931534
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a waste water treatment system developing decoloration and disinfection effect and further denitrification effect along with an excellent dephosphorization effect with respect to waste water obtained by treating organic sewage such as barn sewage, and a method for utilizing a recovered substance.SOLUTION: A waste water treatment system includes a treatment tank into which a slurry of CSH and raw water are introduced, a neutralization and denitrification tank into which the liquid drawn out of the treatment tank is introduced, and a solid-liquid separation tank into which the slurry drawn out of the treatment tank is introduced. A precipitate taking in phosphorus or phosphorus and a coloring component is formed in the treatment tank and the slurry containing the precipitate is drawn out of the treatment tank to be guided to the solid-liquid separation tank while a precipitate-containing solid component (used CSH) is recovered in the solid-liquid separation tank and the nitrate nitrogen contained in the liquid is removed as nitrogen gas in the solid-liquid separation tank and the liquid is neutralized by carbon dioxide.
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| JPH05309358 | TREATMENT OF TAP WATER |
Inventors:
Yasuo Tanaka
Yasuhiro Yamashita
Kiyomi Sugimoto
Teruaki Hasegawa
Takeshi Akito
Nobutaka Minowa
Yasuhiro Yamashita
Kiyomi Sugimoto
Teruaki Hasegawa
Takeshi Akito
Nobutaka Minowa
Application Number:
JP2012070682A
Publication Date:
June 08, 2016
Filing Date:
March 27, 2012
Export Citation:
Assignee:
National Institute for Agricultural and Food Industry Research Organization
Chiba
Taiheiyo Cement Co., Ltd.
Onoda Chemical Co., Ltd.
Chiba
Taiheiyo Cement Co., Ltd.
Onoda Chemical Co., Ltd.
International Classes:
C02F1/58; B01J20/10; C02F3/28; C02F3/34; C05F3/00
Domestic Patent References:
| JP1218691A | ||||
| JP2009285636A | ||||
| JP2009285635A | ||||
| JP2006281001A | ||||
| JP2004276021A | ||||
| JP2164492A | ||||
| JP2010260015A | ||||
| JP2006051466A | ||||
| JP2011092811A | ||||
| JP58086499A | ||||
| JP2013027809A |
Foreign References:
| US20100284881 |
Attorney, Agent or Firm:
Hiroshi Chiba