Synergistic Biocide Composition for Industrial Water Microbial Control
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Solution Overview
Problem
Industrial water systems face significant challenges with microbial growth and slime deposits, leading to costly control programs and process inefficiencies, with no single compound effectively addressing these issues.
Innovation Solution
A synergistic composition of hydantoin-stabilized hypochlorite and peracetic acid is used to inhibit microbial growth and slime deposits, providing enhanced bactericidal activity and reducing the need for high biocide levels, with hydantoin-stabilized hypochlorite generated on-site and peracetic acid applied separately to prevent antagonism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high levels of biocides are used to control microbial growth, then microbial control efficacy is improved, but corrosion and environmental impact worsen
Solution Approach 1:
The patent combines peracetic acid and hydantoin-stabilized hypochlorite into a synergistic composition where the two biocides work together to achieve enhanced microbial control at lower concentrations. This merging allows the system to maintain high efficacy while reducing the harmful effects associated with using high levels of a single biocide.
Solution Approach 2:
The invention uses a composite biocidal system comprising peracetic acid and hydantoin-stabilized hypochlorite. This composite approach leverages the complementary properties of both components to achieve superior performance with reduced dosage, thereby minimizing corrosion and environmental impact while maintaining effective microbial control.
2Ease of operation
If single biocidal compounds are used to control microorganisms, then application simplicity is improved, but control effectiveness worsens
Solution Approach 1:
The patent merges peracetic acid and hydantoin-stabilized hypochlorite into a single synergistic composition that can be applied together, maintaining application simplicity while achieving superior control effectiveness compared to using individual biocides alone.
3Reliability
If peracetic acid and hydantoin-stabilized hypochlorite are mixed, then synergistic bactericidal activity is improved, but composition stability worsens
Solution Approach 1:
The patent segments the biocidal system into two separate compositions: peracetic acid and hydantoin-stabilized hypochlorite. These can be stored and handled separately to maintain stability, then combined at the point of application to achieve synergistic bactericidal activity, thus resolving the contradiction between stability and efficacy.
Solution Approach 2:
The hydantoin compound acts as a stabilizing intermediary that allows hypochlorite to be stored in a stable form and then released to provide synergistic activity when combined with peracetic acid. This intermediary approach enables the system to maintain stability during storage while achieving enhanced bactericidal activity during use.
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 combination achieves a higher degree of bactericidal activity than individual components, allowing for reduced biocide usage, effective slime control, and minimal corrosion or environmental impact, addressing the unmet need in industrial water systems.
Implementation Method 1
hydantoin-stabilized halide or halogen-based hydantoin
Implementation Method 2
peracetic acid and a composition comprising hydantoin-stabilized halide or halogen-based hydantoin
Data Source
AI summary
The present invention provides a composition and method for inhibiting the growth of microorganisms in industrial water systems. Methods employing the composition comprising halogen-based hydantoin or hydantoin-stabilized halogen in combination with peracetic acid demonstrate synergistic control of microbial growth, particularly control of slime deposition.