Chlorine Demand Determination via Bromide Accelerated Oxidation
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Solution Overview
Problem
Current methods for determining chlorine demand in pool and spa water are time-consuming, typically requiring eight to twenty-four hours for incubation, which delays the maintenance of adequate chlorine levels for sanitation.
Innovation Solution
A method involving a test water sample with contaminants, a source of chlorine, and a source of bromide, heated to oxidize contaminants rapidly, allowing for the determination of residual chlorine content within thirty minutes, thereby reducing incubation time and enabling quicker assessment of chlorine needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional incubation method is used to determine chlorine demand, then measurement accuracy is improved, but time consumption increases significantly (8-24 hours)
Solution Approach 1:
The patent changes the chemical parameters by introducing bromide ions and adjusting pH to create a more reactive environment. This accelerates the oxidation reactions between chlorine and contaminants, reducing the incubation time from 8-24 hours to just 30 minutes while maintaining measurement accuracy through controlled experimental conditions
Solution Approach 2:
Bromide ions serve as an intermediary substance that facilitates the oxidation process. The bromide reacts with chlorine to form bromine, which then oxidizes the contaminants more rapidly. This intermediary mechanism accelerates the overall reaction rate without compromising the accuracy of chlorine demand determination
2Productivity
If incubation time is reduced to 30 minutes, then productivity is improved, but measurement precision may deteriorate
Solution Approach 1:
By changing chemical parameters (adding bromide, adjusting pH) rather than simply reducing time, the patent achieves rapid oxidation that is both fast and complete. The modified chemical environment ensures that even in 30 minutes, the oxidation reactions reach sufficient completion for accurate measurement
Solution Approach 2:
The patent performs preliminary preparation by adding bromide and adjusting pH before the actual oxidation process. This preliminary action sets up optimal conditions that enable the oxidation to proceed rapidly and completely within the shortened 30-minute timeframe, ensuring both speed and accuracy
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 significantly reduces the time required to determine chlorine demand, allowing for timely adjustments to maintain recommended chlorine levels, ensuring effective sanitation of pool and spa water.
Implementation Method 1
heating the test water sample for a suitable time and temperature sufficient to substantially oxidize the at least one contaminant in the test water sample
Data Source
AI summary
Methods for determining chlorine demand in water are provided. One method comprises (a) providing a test water sample containing at least one contaminant and a source of chlorine and a source of bromide; (b) heating the test water sample for a suitable time and temperature sufficient to substantially oxidize the at least one contaminant in the test water sample; and (c) determining the content of residual chlorine present in the test water sample.