Filtering Device for Micro/Nano Plastic Separation
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Solution Overview
Problem
Micro/nano plastic particles and persistent organic pollutants in water bodies pose ecological risks due to their small size and widespread presence, which existing technologies fail to effectively capture and purify.
Innovation Solution
A filtering device with a housing, blocking member, and screening member that utilizes natural energies or electrical machinery to split and classify impurities by size, allowing for automatic purification and safe deployment in environments with living organisms, while enabling reuse and minimizing ecological harm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional filtering methods are used, then larger impurities can be removed, but micro/nano plastic particles smaller than 5 millimeters cannot be effectively captured
Solution Approach 1:
The filtering device is divided into multiple filtering components with different pore sizes arranged in sequence. The first filtering component captures larger particles, while subsequent components with progressively smaller pores capture micro/nano plastic particles. This segmentation allows the device to handle multiple size ranges effectively without requiring a single complex high-precision filter.
Solution Approach 2:
Different regions of the filtering device have different filtering characteristics. The first filtering component has larger pores suitable for macro particles, while the second and third components have progressively smaller pores for micro and nano particles. This local differentiation of filtering properties enables efficient capture across multiple size scales.
2Productivity
If high-pressure filtration is used to improve purification speed, then processing efficiency increases, but energy consumption and potential damage to living organisms increase
Solution Approach 1:
The filtering device utilizes periodic wave actions (such as ocean waves or controlled water waves) to drive the filtration process. The waves periodically move water through the filtering components, enabling purification without continuous high-pressure input. This periodic natural action reduces energy consumption and gentler forces protect living organisms in the water.
3Reliability
If multiple filtering stages are added to capture particles of different sizes, then purification effectiveness improves, but device complexity and maintenance difficulty increase
Solution Approach 1:
Multiple filtering components with different pore sizes are merged into a single integrated device structure. The first, second, and third filtering components are arranged in sequence within one housing, allowing simultaneous multi-stage filtration. This merging approach achieves effective multi-size particle capture while maintaining a unified, manageable device structure.
Solution Approach 2:
The filtering device is designed to perform multiple functions within a single system: capturing macro particles, micro plastic particles, and nano plastic particles simultaneously. The universal design allows one device to handle various impurity sizes that would otherwise require separate filtering systems, simplifying deployment and maintenance.
4Adaptability or versatility
If the filtering device is deployed in open water environments with living organisms, then ecological purification is achieved, but the risk of harming aquatic life increases
Solution Approach 1:
The filtering device incorporates dynamic wave-driven flow patterns rather than static high-pressure filtration. The natural wave motion dynamically adjusts water flow through the filters, creating gentler conditions that reduce the risk of harming living organisms while maintaining effective particle capture. This dynamic approach adapts to natural water environments.
Solution Approach 2:
The filtering components act as intermediaries that selectively capture particles while allowing water and living organisms to pass through. The porous structures of the filtering components mediate between the need to capture micro/nano plastics and the need to protect aquatic life, enabling purification without direct harm to organisms.
Data Source
AI summary
The disclosure provides a filtering device comprising a housing, a blocking member and a screening member. The housing includes a body, an inlet end and an outlet end. The housing forms an accommodation space. The inlet end and the outlet end are respectively formed at two ends of the accommodating space. The inlet end is capable of receiving fluid. The blocking member is capable of splitting the fluid into a plurality of fluids and collecting the non-fluid composition of the secondary fluid having a first size. The screening member is disposed between the inlet end and the blocking member, and the screening member is configured to receive the secondary fluid to limit the non-fluid composition having a second size of the secondary fluid to the screening member. After the secondary fluid passes through the shield and the screening member, the secondary fluid is output from the outlet end.