Palm Frond Sand Fixing Agent for Wind Erosion Control

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Solution Overview

Problem

Existing methods for controlling desertification, such as mechanical sand barriers and desert bio-mulching, are costly, labor-intensive, and lack long-term ecological benefits, failing to effectively stabilize sandy areas against wind and rainfall erosion.

Innovation Solution

A sand fixing agent composed of poly-(acrylamide) grafted carboxymethyl cellulose and a carbon alkanal, derived from waste date palm fronds, is used to increase the cohesion and hydrophobic properties of sand, preventing movement by wind and rainfall.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical sand barrier is used to block wind and fix sand, then sand fixation effectiveness is improved, but transportation convenience and cost are worsened

Engineering Contradiction:

Improvesand fixation effectivenessVSAvoidtransportation convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent replaces mechanical sand barriers with a chemical sand fixing agent comprising a copolymer of polyacrylamide grafted carboxymethyl cellulose and carbon alkanal. This chemical agent is applied by mixing with sand rather than transporting and installing mechanical structures, thereby improving transportation convenience while maintaining sand fixation effectiveness through enhanced sand particle cohesion and wind resistance.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If mechanical sand barrier is used to block wind, then sand fixation is improved, but cost and ecological benefits are worsened

Engineering Contradiction:

Improvesand fixation effectivenessVSAvoidcost and ecological benefit

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent changes the fundamental parameter from mechanical structure to chemical composition. The sand fixing agent uses specific chemical components (copolymer ratio, carbon alkanal content) to achieve sand fixation through molecular bonding and hydrophobic effects, eliminating the need for expensive mechanical barrier manufacturing and installation while providing ecological benefits through chemical stabilization that integrates with the natural environment.

Inventive Principle:

Principle #35Parameter changes

3Duration of action of stationary object

If desert shrub plant is used for bio-mulching, then long-term ecological restoration is improved, but investment of manpower and cost are worsened

Engineering Contradiction:

Improvelong-term ecological restorationVSAvoidinvestment of manpower and cost

Core Design Contradiction:

Duration of action of stationary objectVSEase of manufacture

Solution Approach 1:

The patent applies sand fixing agent to sand particles in advance to create stabilized sand structures before wind erosion occurs. This preliminary chemical treatment forms a protective coating on sand grains that prevents wind pickup and erosion immediately, eliminating the need for ongoing manual irrigation and protection of young shrubs, thereby reducing manpower investment while achieving both immediate and long-term ecological restoration.

Inventive Principle:

Principle #10Preliminary action

4Duration of action of stationary object

If desert shrub plant is used for bio-mulching, then ecological restoration is improved, but survival rate and growth speed are worsened

Engineering Contradiction:

Improveecological restorationVSAvoidsurvival rate and growth speed

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The patent introduces sand fixing agent as an intermediary substance between the sand particles and the environment. This chemical mediator stabilizes the sand structure through copolymer networking and hydrophobic interactions, creating a protective matrix that supports shrub establishment by preventing sand movement and water loss, thereby improving shrub survival rate and growth speed while maintaining long-term ecological restoration benefits.

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

The sand fixing agent effectively stabilizes sand grains, enhancing cohesion and resistance to wind and rainfall, as demonstrated by increased compression and shear strength, and is more cost-effective and ecologically beneficial than existing methods.

Implementation Method 1

The sand fixing agent includes poly-(acrylamide) grafted carboxymethyl cellulose and a carbon alkanal... increasing the cohesion of sand... increased cohesion between individual sand particles

Methodology Applied

Scientific EffectCohesion: Cohesion

Implementation Method 2

treating the copolymer with a carbon alkanal to provide the sand fixing agent... enhancing cohesion and resistance to wind and rainfall

Methodology Applied

Scientific EffectHydrophobicity: Hydrophobe

Data Source

PatentUS11807793B1Sand fixing agent

Publication Date: 2023.11.07 KING FAISAL UNIV

AI summary

A sand fixing agent derived from palm tree frond comprises poly-(acrylamide) grafted carboxymethyl cellulose and a carbon alkanal.