Filtration Module Self-Cleaning via Gaseous Bubbles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing membrane filtration systems face challenges with clogging and reduced effectiveness due to solid buildup on membranes, which complicates cleaning and leads to inefficiencies, especially in submerged membrane filtration systems treating large volumes of fluid, as they often require partial or full disassembly for maintenance and can result in less efficient pump operation.
Innovation Solution
The filtration module incorporates an elongated tubular enclosure assembly with a removable hatch and a header system that uses gaseous bubbles to dislodge debris from fiber membranes, allowing for effective cleaning without full disassembly, enhancing self-cleaning capabilities and reducing downtime for maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If membrane filtration systems are used to treat large volumes of fluid, then filtration capacity is improved, but debris buildup on membranes increases causing clogging and reduced effectiveness
Solution Approach 1:
The system performs self-cleaning through gasification that occurs naturally within the filtration module. Gas bubbles form and rise through the membrane, automatically dislodging debris without requiring external intervention or system shutdown, enabling the system to maintain its own effectiveness continuously
Solution Approach 2:
The invention utilizes gasification (pneumatic principle) where gas bubbles are introduced to scour the membrane surface. The rising gas bubbles create hydraulic action that lifts and removes accumulated debris, preventing clogging while maintaining filtration capacity for large volume treatment
2Productivity
If traditional membrane filtration modules are designed for high capacity, then productivity is improved, but cleaning requires partial or full disassembly causing extended downtime
Solution Approach 1:
The system cleans itself continuously during operation through internal gasification. The gas bubbles automatically scour the membrane surface without requiring system shutdown or human intervention, eliminating maintenance downtime while preserving high filtration capacity
Solution Approach 2:
The gasification-based cleaning operates continuously throughout the filtration process. Useful cleaning action occurs simultaneously with filtration, ensuring the membrane remains effective without interruption to the filtration capacity
3Ease of operation
If gasification is used to clean membranes, then ease of operation is improved, but pump efficiency may be reduced
Solution Approach 1:
The gasification process utilizes the system's own operational conditions to generate cleaning action. The gas bubbles are generated within the existing fluid flow, using the system's own energy to perform cleaning without requiring additional external energy input or compromising pump efficiency
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 configuration effectively reduces debris buildup on fiber membranes, improves filtration efficiency, and minimizes the need for human intervention, particularly during sludging events, by utilizing confined gaseous bubbles to scrub and lift debris, thereby maintaining high filtration performance and reducing maintenance downtime.
Implementation Method 1
supplying gaseous bubbles at a first end of the elongated tubular member, such that the gaseous bubbles flow from the first end of the elongated tubular member over at least a portion of the fiber membranes toward a second end of the elongated tubular member, thereby dislodging at least some of the filtered debris
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An enclosure assembly configured to receive a plurality of fiber membranes configured to filter fluid may include an elongated tubular member including an elongated wall extending between first and second ends, and a removable hatch coupled to opposing side edges of the elongated wall, thereby forming a hollow enclosure having an interior. The interior of the elongated tubular member may be configured to receive a plurality of fiber membranes configured to filter fluid.