Planar biofiltration system

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Solution Overview

Problem

Existing biofiltration systems lack the use of natural substrates, promote the use of fertilizers that interfere with microbial development, are often hydroponic and dependent on constant water flow, are not modular, and lack three-dimensional configurations which lead to deformation issues.

Innovation Solution

A planar biofiltration system comprising three-dimensional structures made of polyethylene or polypropylene filled with a substrate, covered by a hydrophilic fabric that allows uniform watering and air passage, with modular design and natural substrates to promote microorganism growth, and includes a watering system with an exudative tube to prevent obstruction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If natural substrates are used to promote microorganism growth, then air purification effectiveness is improved, but system complexity and manufacturing difficulty increase

Engineering Contradiction:
Improveair purification effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system is divided into modular panels that can be independently manufactured and assembled. Each panel contains a substrate layer with microorganisms, allowing the complex biofiltration function to be segmented into manageable units that reduce overall system complexity while maintaining purification effectiveness

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A hydrophilic fabric is introduced as an intermediary layer between the substrate and the external environment. This fabric facilitates water distribution and air passage while protecting the delicate substrate-microorganism system, thereby maintaining purification effectiveness without requiring direct complex interaction between all system components

Inventive Principle:
Principle #24Intermediary (Mediator)

2Duration of action of moving object

If fertilizers are used to support plant growth, then plant development is improved, but microbial development is hindered

Engineering Contradiction:
Improveplant developmentVSAvoidmicrobial development
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The system changes the chemical parameters of the substrate environment by using natural, fertilizer-free substrates. This parameter change creates an environment that is favorable for microbial development while still supporting plant growth through alternative nutrient pathways, thereby resolving the contradiction between plant development and microbial development

Inventive Principle:
Principle #35Parameter changes

3Duration of action of moving object

If hydroponic systems with constant water flow are used, then plant growth is maintained, but resource consumption increases

Engineering Contradiction:
Improveplant growth maintenanceVSAvoidresource consumption
Core Design Contradiction:
Duration of action of moving objectVSLoss of energy

Solution Approach 1:

The hydrophilic fabric serves itself by automatically distributing water through capillary action without requiring external pumping systems. The fabric's inherent properties enable it to draw and distribute water uniformly across the substrate, maintaining plant growth while eliminating the energy-consuming constant water flow requirements of traditional hydroponic systems

Inventive Principle:
Principle #25Self-service

4Ease of manufacture

If non-modular structures are used, then assembly simplicity is maintained, but adaptability and ease of installation decrease

Engineering Contradiction:
Improveassembly simplicityVSAvoidadaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The system is segmented into standardized modular panels that can be easily manufactured individually and then assembled in various configurations. This segmentation maintains manufacturing simplicity for each unit while providing great adaptability for different installation locations and requirements through modular assembly

Inventive Principle:
Principle #1Segmentation

5Quantity of substance

If two-dimensional planar structures are used, then material usage is reduced, but deformation and structural stability worsen

Engineering Contradiction:
Improvematerial usageVSAvoidstructural stability
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The system transitions from a two-dimensional planar structure to a three-dimensional panel structure with internal chambers and layered components. This dimensional change provides structural rigidity and stability while maintaining efficient material usage through the optimized three-dimensional arrangement of substrate, fabric, and support elements

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

The system effectively exposes the rhizosphere to contaminated air, facilitating contaminant removal by microorganisms, reduces resource consumption, and allows for the creation of modular, three-dimensional structures that maintain functionality, enhancing air purification in urban environments and buildings.

Implementation Method 1

A hydrophilic fabric that closes the sides and the base of the first three-dimensional structure

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

A second three-dimensional structure made of polyethylene, polypropylene or any other stable material with support or gripping elements depending on the subsequent placement thereof, secured to the assembly formed by the first three-dimensional structure and the hydrophilic fabric covering the base and sides of the first three-dimensional structure

Methodology Applied
Scientific EffectAir passage through porous structure: Porosity

Data Source

PatentEP2835173B1Planar biofiltration system
Publication Date: 2019.08.14 DOMINGUEZ ROJAS OSCAR
  • EP2835173B1 patent drawingFigure 1~2
  • EP2835173B1 patent drawingFigure 3~4
  • EP2835173B1 patent drawingFigure 5

AI summary

A system comprising a first three-dimensional structure (1) that is filled with a substrate, a hydrophilic fabric (3) that closes the sides and the base of the first three-dimensional structure (1), a second three-dimensional structure (2) secured to the assembly formed by the first three-dimensional structure (1) and the hydrophilic fabric (3) covering the base and sides of the first three-dimensional structure, resulting in a planar system which has high substrate ventilation, is modular, made of three-dimensional structures that do not deform, can be suspended when used, can be covered with different materials and attachments, and, most importantly, promotes contact between the rhizosphere and the air and therefore promotes its detoxification and biofiltration function.