Hydroseeding Substrate Using Digestate Solids for Sustainable Propagation

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Solution Overview

Problem

Traditional plant propagation materials like peat moss and wood mulch pose environmental concerns due to non-renewability and sustainability issues, while direct application of animal manure as fertilizer leads to environmental pollution and health risks, and existing composts are heavy and expensive.

Innovation Solution

A hydroseeding substrate comprising primary solids from anaerobic digesters, bentonite clay, and water-dispersible polymers, and a dissolvable fertilizer package using anaerobic digester solids in a polyvinyl alcohol film, offering nutrient-rich solutions for plant growth and soil conditioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional materials like peat moss and wood mulch are used for plant propagation, then soil quality enhancement and plant growth promotion are achieved, but environmental sustainability and renewability deteriorate

Engineering Contradiction:

Improveplant growth promotionVSAvoidenvironmental sustainability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent transforms animal manure through anaerobic digestion, changing its physical and chemical parameters from a raw, polluting substance into a stabilized, nutrient-rich solid byproduct that is safe for plant propagation while maintaining environmental sustainability

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts harmful animal manure waste, which causes pollution and health risks when directly applied, into a beneficial plant propagation medium through anaerobic digestion, turning a harmful substance into a valuable resource

Inventive Principle:

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

2Quantity of substance

If animal manure is directly applied as fertilizer, then nutrient availability is improved, but environmental pollution and health risks worsen

Engineering Contradiction:

Improvenutrient availabilityVSAvoidenvironmental pollution and health risks

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

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

Solution Approach 2:

The patent introduces anaerobic digestion as an intermediary process between animal manure and plant propagation, using microorganisms to transform the manure into a safe, stabilized form that retains nutrients without the harmful properties of raw manure

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If existing composts are used for plant propagation, then soil conditioning is achieved, but weight and cost increase

Engineering Contradiction:

Improvesoil conditioningVSAvoidcompost weight

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent changes the moisture content parameter of the digestate through controlled drying processes, reducing weight while preserving the soil conditioning properties essential for plant propagation

Inventive Principle:

Principle #35Parameter changes

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

Provides a renewable, lightweight, and environmentally friendly alternative to traditional materials, enhancing soil structure, water retention, and nutrient availability, while reducing environmental impact and health risks.

Implementation Method 1

a dissolvable fertilizer package using anaerobic digester solids in a polyvinyl alcohol film

Methodology Applied

Scientific EffectDissolution:

Implementation Method 2

Anaerobic digestion has been utilized for waste treatment and energy production for many years. This process involves the breakdown of organic materials by microorganisms in the absence of oxygen, producing biogas and a nutrient-rich byproduct known as digestate

Methodology Applied

Scientific EffectAnaerobic digestion: Anaerobic Digestion

Data Source

PatentUS20260096503A1Plant propagation medium and methods of making and using it

Publication Date: 2026.04.09 JS INVENTION FACTORY LLC

AI summary

The present disclosure provides a hydroseeding substrate comprising primary solids from an anaerobic digester, a cover composition comprising bentonite clay and a water-dispersible polymer or starch, and a surface-treated hydroxypropyl methyl cellulose (HPMC). The primary solids may comprise fibrous solids from dairy, poultry, hog, or cattle waste. The water-dispersible polymer may include one or more cellulose derivatives. The surface-treated HPMC may be present in an amount of 0.1 to 20 weight percent of the substrate. The hydroseeding substrate may further include a fertilizer and a soil adjuvant. The disclosure also provides a method of producing a dissolvable fertilizer package and the resulting package, comprising a dried mixture of primary solids from an anaerobic digester and nutrients contained within a tube formed from a polyvinyl alcohol film that is 85-90% hydrolyzed.