Title:
使用済み衛生用品を用いたバイオガスの製造方法
Document Type and Number:
Japanese Patent JP7379076
Kind Code:
B2
Abstract:
Provided is a biogas production method that enables efficient production of a biogas from waste matter derived from used sanitary articles. This method is for producing a biogas using waste matter derived from used sanitary articles containing highly water-absorbent polymers, pulp fibers, synthetic resin materials, and excreta. This method comprises a crushing step (S1) for crushing used sanitary articles in an inactivation aqueous solution that can inactivate highly water-absorbent polymers, a forming step (S2) for separating highly water-absorbent polymers, pulp fibers, and synthetic resin materials from the inactivation aqueous solution containing the crushed used sanitary articles, to form a treatment liquid containing a decomposition product of the highly water-absorbent polymers and excreta, and a biogas production step (S3) for producing a biogas using the treatment liquid.
Inventors:
Takayoshi Konishi
Noritomo Kurita
Noritomo Kurita
Application Number:
JP2019191450A
Publication Date:
November 14, 2023
Filing Date:
October 18, 2019
Export Citation:
Assignee:
Unicharm Corporation
International Classes:
B09B3/70; B09B3/35; C02F11/04; C02F11/06
Domestic Patent References:
| JP2001327998A | ||||
| JP2018130697A | ||||
| JP2019177332A | ||||
| JP2018021282A |
Foreign References:
| WO2019124527A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mihashi
Hiroyuki Onoda
Takenori Okuno
Kenji Fujimoto
Shinji Mihashi
Hiroyuki Onoda
Takenori Okuno
Kenji Fujimoto