Title:
ANAEROBIC DIGESTION PROCESS MONITORING SYSTEM AND ANAEROBIC DIGESTION PROCESS MONITORING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/079773
Kind Code:
A1
Abstract:
Provided is an anaerobic digestion process monitoring system that highly accurately predicts the amount of biogas produced even when the activity of anaerobic microorganisms within a digestion tank varies. The present invention comprises: a first sensor (4) that measures the amount of organic waste matter entering a digestion tank (2) and outputs load data pertaining to the result of measurement; a second sensor (5) that measures the state of a fermentation liquid inside the digestion tank (2) and outputs fermentation liquid state data pertaining to the result of measurement; a pre-treatment unit (12) that obtains, from the load data and the fermentation liquid state data, estimated activity index data indicating the level of activity of the anaerobic microorganisms by using a first estimation model; and a gas production amount prediction unit (13) that obtains a biogas production amount prediction value from the load data, the fermentation liquid state data, and the estimated activity index data by using a second estimation model.
Inventors:
AKETAGAWA KYOHEI (JP)
KATSUMATA NORIAKI (JP)
KATSUMATA NORIAKI (JP)
Application Number:
PCT/JP2022/037772
Publication Date:
April 18, 2024
Filing Date:
October 11, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
C02F11/04; B09B3/65; C02F3/28
Foreign References:
| JP2013204031A | 2013-10-07 | |||
| JP2005152851A | 2005-06-16 | |||
| JP2008178827A | 2008-08-07 | |||
| JP2009160497A | 2009-07-23 | |||
| JPS58216799A | 1983-12-16 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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