Segmented Bioreactor for Waste Methane Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current waste treatment methods, such as storage centers and methanization processes, are either too slow or limited in their ability to treat diverse waste types, and existing methane production methods are inefficient in terms of time and flexibility.
Innovation Solution
A process utilizing a combination of large and small enclosures for anaerobic degradation, where weakly and strongly organic waste are separated and treated, with a liquid fraction from one enclosure introduced into another to enhance degradation and methane production, allowing for accelerated waste breakdown and flexible treatment of various waste types without prior mechanical treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If waste is stored in a storage center for natural degradation, then all waste types can be accepted without pre-treatment, but the degradation time is excessively long (at least thirty years)
Solution Approach 1:
The waste treatment system is segmented into multiple enclosures (first enclosure for weakly organic waste, second enclosure for highly organic waste) with different retention times and degradation conditions. This allows simultaneous treatment of diverse waste types at different degradation rates, reducing overall treatment time while maintaining versatility in waste acceptance.
Solution Approach 2:
The system performs preliminary action by pre-composting highly organic waste in the second enclosure before final stabilization in the first enclosure. This accelerated pre-treatment phase reduces the overall degradation time from thirty years to less than three years while maintaining the ability to accept all waste types.
2Loss of time
If methanization is used to accelerate degradation, then degradation time is reduced, but not all waste types can be treated
Solution Approach 1:
The system segments waste treatment into two pathways: highly organic waste undergoes accelerated methanization in the second enclosure, while weakly organic waste is treated in the first enclosure. This segmentation allows the system to treat all waste types while accelerating degradation of suitable materials through methanization.
Solution Approach 2:
The first enclosure serves multiple functions: it accepts all waste types including those unsuitable for methanization, provides long-term stabilization, and receives liquid fractions from the second enclosure. This multi-functionality enables universal waste treatment while maintaining accelerated degradation capabilities.
3Device complexity
If a single anaerobic cell is used for methanization, then the process is simple, but it can only treat waste of similar quality (household waste and ordinary industrial waste)
Solution Approach 1:
The single anaerobic cell is segmented into two distinct enclosures with different functions: the first enclosure for weakly organic waste and the second for highly organic waste. This segmentation increases waste type adaptability while keeping each individual enclosure relatively simple in design.
Solution Approach 2:
The system merges two different waste treatment approaches (long-term stabilization and accelerated methanization) into a single integrated system. The enclosures are connected through liquid fraction transfer, combining multiple functions while maintaining operational simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach accelerates waste degradation and methane production, enabling faster and more flexible treatment of diverse waste types, reducing treatment time to less than three years and optimizing methane recovery for energy production.
Implementation Method 1
During a degradation operation, a liquid fraction generated in at least one first enclosure is introduced into at least one second enclosure
Data Source
Figure 1
AI summary
The invention relates to a method for processing waste and for producing methane that comprises filling a chamber with waste in which the latter undergoes an anaerobic degradation. According to the invention, the method is substantially characterised in that a large chamber and a small chamber are respectively filled with slightly organic waste and with highly organic waste, and in that a liquid fraction generated by the degradation of waste in the large chamber is fed into the small chamber. The invention also relates to a plant adapted for implementing the method according to the invention.