Isothiazolone-Based Algicidal Agent for Cooling Water Systems
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Solution Overview
Problem
Algae generation in cooling water systems subjected to antimicrobial treatment with chlorosulfamic acid (salt) is not effectively removed, even with increased concentrations, as existing methods fail to distinguish and address the unique characteristics of algae distinct from slime.
Innovation Solution
Incorporating an isothiazolone-based compound into the cooling water system, in conjunction with a chlorine-based oxidizing agent and sulfamic acid compound, to create a synergistic algicidal effect, with a residual chlorine concentration of 0.5 mg-Cl2/L or more and an isothiazolone addition amount of 0.1 to 1,000 mg/L, effectively targeting and removing algae.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chlorosulfamic acid (salt) concentration is increased to remove algae, then antimicrobial effect is improved, but algae removal effectiveness deteriorates
Solution Approach 1:
The patent combines chlorosulfamic acid (salt) with isothiazolone-based compound to create a composite treatment solution. The chlorosulfamic acid provides antimicrobial action while the isothiazolone-based compound provides algicidal action, achieving both functions simultaneously without compromising either effect.
Solution Approach 2:
The patent introduces a new chemical parameter (isothiazolone-based compound) to the treatment system, changing the chemical composition from a single-agent system to a multi-agent system. This parameter change enables effective algae removal while maintaining the antimicrobial properties of the original chlorosulfamic acid treatment.
2Reliability
If chlorosulfamic acid (salt) is used for antimicrobial treatment, then bacterial control is improved, but algae generation control deteriorates
Solution Approach 1:
The treatment solution merges chlorosulfamic acid (salt) for bacterial control with isothiazolone-based compound for algae control. This combination allows the system to address multiple harmful factors (bacteria and algae) simultaneously, with each component targeting its specific organism type without interfering with the other's effectiveness.
Solution Approach 2:
The patent applies different chemical properties to different targets: chlorosulfamic acid (salt) is optimized for antimicrobial action against bacteria, while isothiazolone-based compound is optimized for algicidal action against algae. Each component exhibits its specialized function in the same water system, achieving localized effectiveness for each organism type.
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 of chlorosulfamic acid (salt) and isothiazolone-based compounds ensures effective killing and removal of algae in cooling water systems, enhancing antimicrobial and algicidal properties, particularly in industrial, kitchen, and air conditioning systems, by distinguishing and addressing the unique characteristics of algae.
Implementation Method 1
an algicidal effect can be synergistically obtained by the use of a chlorosulfamic acid (salt) together with an isothiazolone-based compound
Data Source
AI summary
An antimicrobial and algicidal agent for cooling water system contains an antimicrobial agent and an isothiazolone-based compound that effectively kill and remove the algae grown in the cooling water system.