Formate-Enhanced Irrigation Water for Compacted Alkaline Soil

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Solution Overview

Problem

Hard irrigation water containing high concentrations of calcium ions and dissolved carbonates leads to alkaline soil conditions, soil compaction, reduced nutrient availability, and decreased water permeability, hindering crop growth and productivity.

Innovation Solution

Introduce formic acid and/or formate salts to irrigation water to form a formate-enhanced solution with concentrations ranging from 10 ppm to 10,000 ppm, which increases water flow, reduces soil compaction, and decreases calcium concentration by reacting with alkaline salts to form water-soluble formate salts, thereby improving soil permeability and nutrient uptake.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If hard irrigation water containing high concentrations of calcium ions and dissolved carbonates is used for irrigation, then irrigation water delivery is achieved, but soil compaction and reduced water permeability occur

Engineering Contradiction:

Improveirrigation water deliveryVSAvoidsoil compaction and reduced water permeability

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent converts the harmful effect of calcium carbonate accumulation (which causes soil compaction) into a beneficial process by introducing formic acid that reacts with calcium carbonate to form soluble calcium formate. This chemical transformation converts the harmful insoluble carbonate into a beneficial soluble formate salt, improving soil permeability while maintaining irrigation water delivery.

Inventive Principle:

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

Solution Approach 2:

The patent changes the chemical parameter of calcium carbonate (insoluble) to calcium formate (soluble) through chemical reaction with formic acid. This parameter change from insoluble to soluble state transforms the harmful accumulation into a beneficial dissolved form that improves soil water permeability and reduces compaction.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If formic acid and formate salts are added to irrigation water to improve soil permeability, then water flow and nutrient availability increase, but the complexity of the irrigation system increases

Engineering Contradiction:

Improvesoil permeability and nutrient availabilityVSAvoidirrigation system complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent introduces formic acid as an intermediary substance that mediates between the irrigation water and soil calcium carbonate. This intermediary chemical agent facilitates the transformation of harmful carbonates into beneficial formates, improving soil permeability and nutrient availability without requiring complex mechanical modifications to the irrigation system.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Duration of action of stationary object

If calcium carbonate accumulates in soil over time, then irrigation water application is maintained, but nutrient availability to plants decreases

Engineering Contradiction:

Improveirrigation water applicationVSAvoidnutrient availability

Core Design Contradiction:

Duration of action of stationary objectVSQuantity of substance

Solution Approach 1:

The patent converts the harmful accumulation of calcium carbonate (which blocks nutrient availability) into a beneficial process by reacting it with formic acid to form soluble calcium formate. This transformation maintains irrigation water application while simultaneously improving nutrient availability, as the soluble formate salts enhance soil permeability and nutrient uptake.

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

The method enhances soil permeability, reduces compaction, and increases nutrient availability, leading to improved crop health and productivity by increasing water infiltration and nutrient uptake.

Implementation Method 1

formic acid and/or a formate salt is introduced to irrigation water... reacting with alkaline salts to form water-soluble formate salts

Methodology Applied

Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

increase a flow rate of the irrigation water through the soil... improve water infiltration

Methodology Applied

Scientific EffectPermeation: Permeation

Data Source

PatentUS12466774B2Methods of increasing irrigation water and fertilizer delivery to soil using formic acid and formate salts, making a formate salt from carbon dioxide, and generating a carbon credit

Publication Date: 2025.11.11 DEERPOINT GROUP LLC

AI summary

A method of increasing delivery of irrigation water and optionally a fertilizer to a predetermined depth in soil containing agricultural crops is disclosed. The method includes introducing formic acid to irrigation water to form a formate-enhanced irrigation water having a formate concentration of from about 10 ppm to about 10,000 ppm, and distributing the formate-enhanced irrigation water to the soil in an amount sufficient to (i) increase a flow rate of the irrigation water through the soil, (ii) reduce a compaction of the soil, and/or (iii) reduce a calcium concentration in the soil. Methods of making a formate salt from carbon dioxide, a hydrogen source and an alkali metal, alkaline earth metal, or ammonia source and generating carbon credits are also disclosed.