Anaerobic treatment apparatus and operation method of anaerobic treatment apparatus
By applying periodic external forces like vibration or pulsation to anaerobic treatment tanks, short-circuit flows are suppressed, ensuring fluidity and improving treatment efficiency by preventing channel formation and maintaining microbial concentration.
WO2026134204A1PCT designated stage Publication Date: 2026-06-25SUMITOMO HEAVY IND LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SUMITOMO HEAVY IND LTD
- Filing Date
- 2025-12-16
- Publication Date
- 2026-06-25
AI Technical Summary
Technical Problem
Anaerobic treatment tanks using carriers or granules face issues with short-circuit flows due to biofilm adhesion and microbial growth, leading to decreased fluidity and treatment efficiency.
Method used
Applying a periodic external force, such as vibration or pulsation, directly to the contents of the anaerobic treatment tank to suppress or eliminate short-circuit flows by locally loading the carrier or granule layer, ensuring fluidity and improving treatment efficiency.
Benefits of technology
The application of external forces effectively prevents the formation of short-circuit channels, maintains fluidity, and enhances treatment efficiency by maintaining a high concentration of anaerobic microorganisms.
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Smart Images
Figure JP2025043865_25062026_PF_FP_ABST
Abstract
The present invention addresses the problem of providing an anaerobic treatment apparatus and an operation method of the anaerobic treatment apparatus capable of suppressing occurrence of a short-circuit flow or eliminating the short-circuit flow in an anaerobic treatment tank, securing fluidity in the anaerobic treatment tank, and improving treatment efficiency when performing anaerobic treatment using the anaerobic treatment tank that holds a carrier or granules. In order to solve the problem, provided are: an anaerobic treatment apparatus provided with an anaerobic treatment tank for holding a carrier or granules, and an external force application mechanism for applying a periodic external force to the content in the anaerobic treatment tank; and an operation method of the anaerobic treatment apparatus. According to the present invention, formation of a short-circuit flow passage in the anaerobic treatment tank can be suppressed, the short-circuit flow passage can be collapsed, and the occurrence of the short-circuit flow in the anaerobic treatment tank can be suppressed or the short-circuit flow can be eliminated. That is, fluidity in the anaerobic treatment tank can be secured and treatment efficiency can be improved.
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