Title:
An incineration disposal method of raw sludge, and sewage disposal equipment
Document Type and Number:
Japanese Patent JP5976152
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To certainly and stably prevent exhaust gas passage form clogging and generation of damage and bending due to adhesion or accumulation of incineration ash on the inner surface of the exhaust gas passage at the outlet side of an incinerator when the dewatered sludge from sewage containing phosphorus is subjected to incineration process with a flow incinerator at 840 to 900°C.SOLUTION: In an incineration processing method for sewage sludge in which dewatered sludge containing excess sludge is subjected to an incineration process with a flow incinerator, the component of the dewatered sludge to be incineration with the flow incinerator is adjusted so that an X1 value calculated by the following formula (1) with respective contents of Na, K, Ca, Mg, Al, Fe and a content of P in the dewatered sludge supplied to the flow incinerator is 1.0 or more, and furthermore, incineration ash is collected so that phosphorus component in the incineration ash is reused. X1={Na(mol)+K(mol)+Ca(mol*2)+Mg(mol*2)+Al(mol*3)+Fe(mol*3)}/P(mol*3)(1)
Inventors:
Hiroki Oe
Yoichi Kashihara
Masato Hadano
Katsuzo Nakazawa
Hiroshi Nagaizumi
Tetsuo Hayashi
Michiaki Masashi
Kazuyoshi Terakashi
Toshiki Kobayashi
Takada Maki
Yoichi Kashihara
Masato Hadano
Katsuzo Nakazawa
Hiroshi Nagaizumi
Tetsuo Hayashi
Michiaki Masashi
Kazuyoshi Terakashi
Toshiki Kobayashi
Takada Maki
Application Number:
JP2015042846A
Publication Date:
August 23, 2016
Filing Date:
March 04, 2015
Export Citation:
Assignee:
Tsukishima Techno Maintenance Service Co., Ltd.
Tsukishima Machinery Co., Ltd.
Tsukishima Machinery Co., Ltd.
International Classes:
C02F11/06; B01D11/02; B09B3/00; C02F3/12
Domestic Patent References:
| JP2010012425A | ||||
| JP2010036107A | ||||
| JP52113565A | ||||
| JP2000063829A | ||||
| JP2011220668A | ||||
| JP10029882A | ||||
| JP11342378A | ||||
| JP55002790A | ||||
| JP7251141A | ||||
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| JP2009207982A | ||||
| JP2004298739A | ||||
| JP2002174416A |
Foreign References:
| WO2013175632A1 | ||||
| US4216012 | ||||
| WO2011025440A1 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi
Yasuhiko Murayama
Tadashi Takahashi
Suzuki Mitsuyoshi
Yasuhiko Murayama