Metal-Modified Apatite Decomposer for Agricultural Chemical Residues
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Solution Overview
Problem
Conventional agricultural chemicals take a long time to decompose, leading to residual chemicals on crops at harvest time, posing safety risks and reducing effectiveness when applied too early to avoid residues, while applying them too late may not provide sufficient pest control.
Innovation Solution
An agricultural chemical component combining an active ingredient with a metal-modified apatite that includes optically catalytic metal atoms, such as titanium, which enhances decomposition under sunlight through adsorption and optical catalysis, allowing for timely pest control without excessive residues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If agricultural chemicals are applied at the outbreak timing of pests, then pest control effectiveness is improved, but residual agricultural chemicals remain on crops at harvest
Solution Approach 1:
The patent incorporates a decomposer component into the agricultural chemical formulation that activates after the pest control function is completed. This preliminary action ensures that the chemical decomposes naturally after serving its purpose, eliminating residues before harvest without compromising initial pest control effectiveness
Solution Approach 2:
The patent modifies the temporal parameters of the agricultural chemical by adding a decomposer that changes the degradation rate. The chemical maintains its active state during the pest control period, then accelerates decomposition through natural processes (UV light, moisture, microbial action) to reduce residues before harvest, thus changing the time profile from static to dynamic
2Object-affected harmful factors
If agricultural chemicals are applied before the pest season, then residual chemicals are reduced, but pest control effectiveness decreases
Solution Approach 1:
The decomposer component is built into the formulation to remain dormant during the application and early period, allowing the agricultural chemical to maintain full effectiveness. Only after the pest control function is fulfilled does the decomposer activate to break down residues, enabling earlier application without sacrificing efficacy
3Object-affected harmful factors
If natural decomposition is relied upon, then safety is improved, but decomposition speed is insufficient
Solution Approach 1:
The patent introduces a decomposer component as an intermediary substance that facilitates and accelerates the natural decomposition process. This decomposer acts as a catalyst or mediator that speeds up the breakdown of agricultural chemicals through natural mechanisms (UV light absorption, moisture interaction, microbial stimulation) without introducing harsh chemical accelerators that would compromise safety
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 metal-modified apatite accelerates the decomposition of agricultural chemicals, reducing residual amounts and enabling effective pest control at the time of need, with the option to delay application due to increased decomposition rate, while being safe for human consumption and environmentally friendly.
Implementation Method 1
The agricultural chemical component includes an active agricultural chemical ingredient and a metal-modified apatite... which enhances decomposition under sunlight through adsorption and optical catalysis
Implementation Method 2
a powder metal-modified apatite in which part of metal atoms in its apatite crystal structure are provided by an optically catalytic metal. The optically catalytic metal atom is a metal atom which is capable of working as a center of optical catalyst in the form of oxide.
Data Source
AI summary
An agricultural chemical component includes an active agricultural chemical ingredient and a powder metal-modified apatite which has part of metal atoms in its apatite crystal structure provided by an optically catalytic metal. Preferably, the metal-modified apatite is coated with an organic film.