Medium-Chain Peracid Treatment for Recirculating Water Biofilms
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Solution Overview
Problem
Existing water treatment methods struggle to effectively inhibit biofilm formation in industrial and commercial systems, as biocides have difficulty penetrating and removing biofilms, leading to reduced production efficiency and increased costs due to excessive dosages.
Innovation Solution
Employing peracid compositions comprising short and medium chain peracids to sanitize water systems, effectively reducing both planktonic and sessile microorganisms, including biofilms, without the use of biocides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical biocides are used to control biofouling, then microbial growth is reduced, but the cost increases and excessive dosages are required due to poor penetration into biofilms
Solution Approach 1:
The invention changes the chemical parameters of the biocide by using peracids with specific molecular structures (short and medium chain lengths) that alter their penetration capability into biofilms. This allows effective biofilm control at lower dosages compared to traditional biocides, resolving the contradiction between control effectiveness and dosage quantity.
Solution Approach 2:
The invention employs a composite approach by combining peracids with different chain lengths (short and medium) to create a synergistic effect. This composite peracid formulation enhances penetration into biofilms while maintaining cost-effectiveness, addressing both the effectiveness and dosage concerns simultaneously.
2Reliability
If excessive biocide dosages are applied to control biofouling, then microbial growth is suppressed, but the operational cost increases
Solution Approach 1:
By optimizing the peracid molecular structure parameters (chain length), the invention achieves superior biofilm inhibition efficiency that reduces the total quantity of biocide needed, thereby lowering operational costs while maintaining reliable biofilm control.
Solution Approach 2:
The peracid compositions provide a cost-effective alternative to expensive traditional biocides. The shorter-lived peracid molecules decompose into harmless byproducts, eliminating the need for high dosages and reducing long-term operational costs while maintaining effective biofilm inhibition.
3Reliability
If traditional biocides are used to kill planktonic microbes, then solution microbial growth is controlled, but sessile microbes in biofilms remain unaffected
Solution Approach 1:
The peracid compositions exhibit different properties for different microbial states: they effectively kill planktonic microbes in the bulk solution while simultaneously penetrating and inhibiting sessile microbes in biofilms. This local quality differentiation allows the single formulation to address both microbial populations, resolving the adaptability contradiction.
Solution Approach 2:
The composite peracid system combines the advantages of short-chain peracids (effective against planktonic microbes) and medium-chain peracids (enhanced biofilm penetration capability). This composite approach provides versatile control over both suspended and attached microorganisms, eliminating the limitation of traditional single-mode biocides.
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 peracid compositions provide a cost-effective solution by significantly reducing microbial populations, achieving at least a 50% reduction in microbial growth, thereby maintaining system efficiency and reducing operational downtime.
Implementation Method 1
The peracid compositions provide a cost-effective solution by significantly reducing microbial populations, achieving at least a 50% reduction in microbial growth
Data Source
AI summary
The present disclosure describes a process for the use of peracid compositions to eliminate and/or control the growth of undesirable bacteria, including contaminating bacteria, in water systems is disclosed. Beneficially, the peracid compositions and methods of use of the same are effective in reducing or eliminating both planktonic and sessile bacterial contamination.