Monoalkali Metal Cyanurate Slurry for UV-Stabilized Chlorinated Water
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Solution Overview
Problem
Current methods for stabilizing chlorine in water against UV degradation, such as using cyanuric acid, face issues like slow dissolution, damage to pool surfaces, and operational challenges due to high viscosity and settling of monosodium cyanurate slurries, leading to ineffective UV stabilization and aesthetic and functional problems in chlorinated water systems.
Innovation Solution
A low-viscosity monoalkali metal cyanurate slurry and dry solid formulation that can be easily poured, dissolved, and dispersed in water, produced through methods involving cyanuric acid wetcake reaction with a monoalkali metal base, either with or without a solid-liquid separation step, resulting in smaller, spherical crystals that maintain stability and prevent settling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cyanuric acid is used to stabilize chlorine against UV degradation, then UV stabilization is improved, but dissolution time increases and pool surface damage occurs
Solution Approach 1:
The patent changes the chemical form of cyanuric acid from solid granules to a slurry formulation with controlled particle size (0.001-0.01 mm), which fundamentally alters the dissolution parameters and enables rapid dissolution while maintaining UV stabilization effectiveness
Solution Approach 2:
The invention creates a composite slurry material combining cyanuric acid with water and optional suspending agents, forming a stable emulsion that dissolves quickly and uniformly in pool water without the dissolution delays associated with solid granules
2Speed
If monosodium cyanurate slurry is used to improve dissolution speed, then dissolution speed is improved, but viscosity increases and settling occurs
Solution Approach 1:
The patent optimizes the particle size parameter to 0.001-0.01 mm and controls the solids concentration in the slurry to 10-50%, which prevents excessive viscosity and settling while maintaining rapid dissolution performance
Solution Approach 2:
The invention introduces suspending agents as intermediary substances that stabilize the slurry formulation, preventing particle aggregation and settling while maintaining the low viscosity and rapid dissolution characteristics needed for effective chlorine stabilization
3Reliability
If solid cyanuric acid granules are used, then UV stabilization is achieved, but aesthetic appearance deteriorates due to undissolved piles
Solution Approach 1:
The patent changes the physical form from solid granules to fine particle slurry (0.001-0.01 mm), which eliminates the aesthetic problem of undissolved piles while maintaining effective UV stabilization through rapid and complete dissolution
4Reliability
If cyanuric acid is added to stabilize chlorine, then UV degradation is prevented, but operational challenges increase due to vacuum operation restrictions
Solution Approach 1:
The invention changes the delivery form from solid granules that interfere with vacuum operation to a liquid slurry formulation that can be easily pumped and applied without restricting vacuum operations, thereby maintaining UV protection while improving operational flexibility
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 solution provides a practical, inexpensive, and efficient chlorine stabilizer that dissolves quickly and evenly in water, preventing UV degradation and minimizing damage to pool surfaces, while being easy to handle and use, thus enhancing the operational efficiency and aesthetics of chlorinated water systems.
Implementation Method 1
A low-viscosity monoalkali metal cyanurate slurry and dry solid formulation that can be easily poured, dissolved, and dispersed in water
Implementation Method 2
produced through methods involving cyanuric acid wetcake reaction with a monoalkali metal base
Implementation Method 3
for stabilizing chlorinated water to sunlight decomposition... chlorine will quickly disappear because of ultra violet (UV) light-induced photolytic degradation
Data Source
AI summary
The invention includes a composition for stabilizing chlorinated water to sunlight decomposition, and methods of preparing compositions. The composition is a slurry composition of a monoalkali metal cyanurate, of low viscosity. Two methods of preparing the slurry are described, in which cyanuric acid or cyanuric acid wetcake is mixed with a monoalkali metal base. One method dry blends cyanuric acid or cyanuric acid wetcake with a monoalkali metal base. The invention also describes a method of preparing a dry, solid monoalkali metal cyanurate.