Three-Dimensional Filter Network for Sludge and Algae Removal

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Solution Overview

Problem

Existing pond filters face challenges such as high costs due to complex geometries, clogging issues, and reduced filtration efficiency, especially when dealing with sludge and floating algae, which affect water quality and biodiversity.

Innovation Solution

A filter unit composed of interconnected longitudinal and transverse elements forming a three-dimensional network with adjustable pore sizes and materials, allowing for improved filtration efficiency and flexibility in design, suitable for both water and gas filtration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional filters are used to remove algae and sludge, then water quality improves, but the filters clog easily and require frequent cleaning

Engineering Contradiction:
Improvefiltration effectivenessVSAvoidcleaning frequency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The filter element is divided into multiple filter layers with different pore sizes arranged in sequence. The coarse filter layer (larger pores) is positioned first to capture large particles like sludge and algae, while subsequent fine filter layers (smaller pores) progressively filter smaller particles. This segmentation prevents rapid clogging of the entire filter by distributing the filtration load across multiple layers with different capture capabilities.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the filter element have different pore sizes tailored to specific filtration needs. The coarse filter layer has larger pores optimized for capturing large debris, while the fine filter layer has smaller pores for capturing finer particles. This local differentiation of filter properties allows each region to perform its specialized function efficiently, extending overall filter life.

Inventive Principle:
Principle #3Local quality

2Quantity of substance

If pyramid-shaped filter blocks with octagonal elements are used, then filtration capacity increases, but manufacturing costs increase by 50% or more

Engineering Contradiction:
Improvefiltration capacityVSAvoidmanufacturing cost
Core Design Contradiction:
Quantity of substanceVSEase of manufacture

Solution Approach 1:

The filter element uses a rectangular parallelepiped shape with standard geometric dimensions that can be manufactured using conventional cutting and shaping methods. This universal, simple geometry allows the same manufacturing processes to be used for different filter sizes and configurations, eliminating the need for specialized pyramid-shaped molds and octagonal element production, thereby significantly reducing manufacturing costs while maintaining adequate filtration capacity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The filter element is designed as an inexpensive, easily replaceable component with simple geometry that can be mass-produced at low cost. Rather than investing in expensive, complex pyramid-shaped filter blocks, the invention uses affordable rectangular filters that can be readily replaced when needed, reducing both initial investment and long-term operational costs.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Strength

If filter foam elements are glued or welded together, then structural integrity is achieved, but mechanical connection becomes difficult and costly

Engineering Contradiction:
Improvestructural integrityVSAvoidconnection complexity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The filter element integrates the support structure and filter medium into a single unified component. The three-dimensional network structure provides inherent mechanical strength while the entire element can be manufactured as one piece or easily assembled using simple mechanical connections, eliminating the need for complex gluing or welding processes and reducing manufacturing complexity.

Inventive Principle:
Principle #5Merging (Combining)

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

Enhances filtration performance by controlling filtration speed and capacity, reducing clogging and operational costs, while maintaining ecological harmlessness and effectiveness in removing sludge and algae from water.

Implementation Method 1

a plurality of longitudinal and transverse elements 1, 5 made of at least one filter material permeable to the fluids that are connected to one another in such a way that a network with a plurality of meshes 20 through which the fluids can enter the filter unit and come into contact with the filter material forming the network

Methodology Applied
Scientific EffectPhysical filtration: Filter (physical)

Data Source

PatentEP2268134B1Filter network
Publication Date: 2012.06.20 IFE INNOVATIVE FORSCHUNGS UNDENTWICKLUNGS GMBH & CO KG
  • EP2268134B1 patent drawingFigure 1
  • EP2268134B1 patent drawingFigure 2~3
  • EP2268134B1 patent drawingFigure 4~5

AI summary

The present invention relates to a filter unit for cleaning fluids, filter systems comprised of a plurality of said filter units, and the use of the filter unit or of the filter systems for filtering sludge and floating algae from water, or for purifying gases.