Biodegradable Hydroponic Growth Rods for Pot-Free Root Recycling

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Solution Overview

Problem

Existing hydroponic systems using injection moulded plastic pots with stone wool generate significant plastic waste and separation of plant roots and growth medium is inefficient, leading to environmental issues and resource wastage.

Innovation Solution

A hydroponic system utilizing elongated growth medium rods made of biodegradable, water and air permeable sheet material, such as biodegradable fibers, which can be recycled with plant roots and growth medium, eliminating the need for plastic pots and stone wool.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If injection moulded plastic pots with stone wool are used, then plant support and structure are provided, but plastic waste increases and environmental harm occurs

Engineering Contradiction:

Improvestructural supportVSAvoidplastic waste

Core Design Contradiction:

StrengthVSObject-generated harmful factors

Solution Approach 1:

The patent changes the material parameters from non-biodegradable plastic to biodegradable materials (paper, cardboard, textile, or bioplastics), transforming the end-of-life characteristics while maintaining structural functionality during plant growth

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The growth medium container is designed to be discarded together with the plant roots and growth medium as a single unit, eliminating the need for separation and enabling comprehensive recycling or composting of organic materials

Inventive Principle:

Principle #34Discarding and recovering

2Quantity of substance

If plastic pots with stone wool are used, then growth medium is retained, but separation of plant roots and growth medium becomes inefficient

Engineering Contradiction:

Improvegrowth medium retentionVSAvoidseparation efficiency

Core Design Contradiction:

Quantity of substanceVSEase of operation

Solution Approach 1:

The container, growth medium, and plant roots are merged into a single integrated unit that can be removed and processed together, eliminating the complex separation process required in traditional systems

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If traditional hydroponic systems are used, then nutrient delivery is achieved, but system clogging occurs from growth medium debris

Engineering Contradiction:

Improvenutrient deliveryVSAvoidsystem clogging

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The biodegradable container breaks down into organic matter that benefits the growth medium, while the contained structure prevents excessive debris release that would cause system clogging

Inventive Principle:

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

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

Reduces plastic waste, facilitates efficient recycling of growth medium, and minimizes clogging risks in hydroponic systems by using biodegradable materials that maintain system functionality.

Implementation Method 1

water and air permeable sheet material

Methodology Applied

Scientific EffectPermeation: Permeation

Implementation Method 2

absorb water and dissolved nutrients

Methodology Applied

Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS20260047536A1Hydroponic system, and a process for producing a hydroponic system

Publication Date: 2026.02.19 ELLEPOT AS

AI summary

Hydroponic systems for growing plants, and a corresponding process for line production of the hydroponic systems are provided.