Multi-Layer Offset Grid Filtration for Hazardous Liquid Containment

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Solution Overview

Problem

Current systems for hazardous liquid and waste water collection and containment are inadequate in separating contaminants from water, leading to environmental pollution and inefficiencies in water reuse, particularly in vehicle washing and plant growing facilities, where contaminated water cannot be disposed of in municipal systems.

Innovation Solution

A modular cleaning system featuring a mat with a non-porous lower layer and multiple layers of offset grid-patterned plate layers that filter and separate contaminants from water, allowing for the reuse of cleaned water in plant growth and vehicle washing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional single-layer containment systems are used, then device complexity is reduced, but separation precision of contaminants from water deteriorates

Engineering Contradiction:
Improveseparation precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The containment system is divided into multiple functional layers including a geotextile layer for initial filtration, a geogrid layer for structural support and secondary filtration, and a non-porous barrier layer for complete containment. Each layer performs a specific separation function, progressively removing different types of contaminants from the water to achieve high separation precision without requiring a single complex component

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from horizontal filtration to vertical multi-layer filtration by stacking different material layers with complementary functions. This dimensional approach allows simultaneous performance of multiple separation tasks (filtration, support, containment) in a compact vertical profile, improving separation precision while managing device complexity through functional decomposition across layers

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

2Loss of time

If water is disposed in municipal waste water systems, then loss of time for water treatment is reduced, but object-affected harmful factors increase due to environmental pollution

Engineering Contradiction:
Improvetime for water treatmentVSAvoidenvironmental pollution
Core Design Contradiction:
Loss of timeVSObject-affected harmful factors

Solution Approach 1:

The system converts the harmful contaminated water into a beneficial resource by implementing on-site treatment through the multi-layer containment system. The geotextile and geogrid layers filter and separate contaminants, transforming the waste stream into reusable clean water that can be recirculated for irrigation and cleaning purposes, eliminating environmental pollution while reducing water treatment time

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The containment system separates and recovers clean water from contaminated runoff by filtering out oils, chemicals, and particulates through the geotextile and geogrid layers. The recovered clean water is stored and reused for plant irrigation and facility cleaning, while only the concentrated contaminants are disposed of, thereby reducing both treatment time and environmental harm

Inventive Principle:
Principle #34Discarding and recovering

3Productivity

If contaminated water is reused without treatment, then productivity is improved by reducing water consumption, but object-generated harmful factors increase due to recontamination

Engineering Contradiction:
Improvewater reuse efficiencyVSAvoidrecontamination risk
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The system performs preliminary treatment of contaminated water through the geotextile and geogrid filtration layers before the water is reused. This pre-filtration removes oils, chemicals, and particulates in advance, ensuring that the water reused for irrigation and cleaning meets quality standards, thereby maintaining high productivity while preventing recontamination of plants and facilities

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The geotextile and geogrid layers act as intermediary filtration media between the contaminated water source and the reuse application. These intermediate layers selectively remove harmful contaminants while allowing clean water to pass through, enabling safe water reuse that maintains productivity without introducing recontamination risks

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Effectively captures and separates contaminants from water, enabling the reuse of cleaned water for irrigation and cleaning in plant growing facilities and vehicle washing, reducing environmental pollution and water waste.

Implementation Method 1

a plate layer comprising at least two layers of runners arranged in a grid, the grid of each successive layer of the at least two layers is offset at an angle with respect to the grid of a previous layer of the at least two layers

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

contaminants within the liquid collects within the grids of the at least two layers

Methodology Applied
Scientific EffectTrapping: Absorption (physical)

Data Source

PatentUS11661367B2Waste and/or hazardous liquid containment and collection system
Publication Date: 2023.05.30 DECHARD ALBERT
  • US11661367B2 patent drawing
  • US11661367B2 patent drawing
  • US11661367B2 patent drawing

AI summary

A liquid cleaning and watering system for living plants rests on a surface covered by a non-porous material. A plate layer covering the non-porous layer has two or more layers, each layer having runners arranged in a grid. The grid of each successive layer is offset at an angle with respect to the grid of a previous layer. An upper layer covers the plate layer and has a plurality of holes for the passage of liquids into the liquid cleaning system. As the living plants are watered or cleaned, excess liquids containing water and oils that were excreted by the living plants enter the liquid cleaning system through the holes, the liquid traverses the grid layers, flowing towards a drain. Contaminants within the liquid collect within the grid of the layers of the plate layer for later disposal.