Zeolite Granule Moisture Control for Phased Pheromone Release
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Solution Overview
Problem
Existing methods face challenges in ensuring a uniform concentration and gradual release of pheromones from zeolite carrier granules over a predetermined period, as natural moisture content interferes with impregnation and environmental humidity fluctuations affect pheromone release.
Innovation Solution
Zeolite granules are first dried to a moisture content of less than 3% and then increased to 5-9% by weight with a diluted pheromone concentrate, allowing for controlled pheromone release independent of environmental humidity, with preferred moisture content between 7-8% for optimal pheromone absorption and distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If zeolite granules are used as carrier for pheromones, then the pheromones can be released over an extended period of time, but the natural water content of the zeolite impairs the impregnation and causes environmental humidity fluctuations to affect pheromone release
Solution Approach 1:
The patent changes the moisture content parameter of the zeolite granules from natural levels (typically 12-14%) to a controlled range of 5-9% by weight. This parameter modification allows the zeolite to absorb and retain the diluted pheromone concentrate more effectively while maintaining structural stability, thereby ensuring reliable and consistent pheromone release over the intended period without being adversely affected by environmental humidity fluctuations.
2Manufacturing precision
If the zeolite granules are dried to low moisture content, then the pheromone concentrate can be uniformly absorbed, but the pheromone release may be affected by environmental humidity
Solution Approach 1:
The patent optimizes the moisture content parameter to a specific range of 5-9% by weight, which balances two competing requirements: low enough moisture to allow uniform absorption of pheromone concentrate throughout the granule structure, yet high enough to provide a buffer against environmental humidity changes. This controlled moisture level creates an internal reservoir that releases pheromones steadily regardless of external humidity conditions.
3Duration of action of moving object
If the moisture content is increased to absorb more pheromone concentrate, then the pheromone release duration is extended, but the natural water content interferes with proper impregnation
Solution Approach 1:
The patent modifies the moisture content parameter from natural high levels (12-14%) to an optimized range (5-9% by weight). This reduction in moisture content improves impregnation quality by allowing better penetration and uniform distribution of the pheromone concentrate throughout the zeolite granule structure, while still maintaining sufficient moisture to enable gradual release over an extended period of at least three months.
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
This method enables a gradual and prolonged release of pheromones over three months or more, effectively attracting or deterring specific insect species without pheromone overdose, suitable for insect traps and confusion techniques in agricultural pest control.
Implementation Method 1
zeolite granules are impregnated with a diluted pheromone concentrate
Implementation Method 2
the release of the pheromones absorbed by the respective zeolite being intended to be extended over a corresponding period of time
Data Source
AI summary
The invention relates to a method for producing a granulate impregnated with a pheromone, wherein a zeolite granulate is impregnated with a diluted pheromone concentrate. In order to achieve a gradual release of pheromones, it is proposed that first the zeolite granulate is dried to a humidity content of less than 3% by weight, whereupon the humidity content of the zeolite granulate is again increased from 5 to 9% by weight by adding the diluted pheromone concentrate.