Why Use Potassium Monopersulfate Disinfectants in Aquaculture?

What Is Potassium Monopersulfate Disinfectant?

Potassium monopersulfate disinfectant is an inorganic compound with the chemical formula 2KHSO-5·KHSO4·K2·SO4. It is a strong oxidizing agent commonly used in chemical reactions as a catalyst or oxidizing agent.

Why Can Potassium Monopersulfate Disinfectant Be Used as a Disinfectant in Aquaculture?

Its use as a disinfectant in aquaculture is mainly due to the following advantages:

• Strong oxidizing property: Potassium monopersulfate disinfectant is a strong oxidizing agent that can effectively kill bacteria, viruses, and fungi. It exerts its disinfecting action by destroying the cell membranes and internal structures of microorganisms through oxidation reactions.

• Broad-spectrum bactericidal property: Its strong oxidative property provides it with a wide range of microbial killing effects, including pathogenic and other harmful microorganisms.

• Chemical stability: Under appropriate conditions, potassium monopersulfate disinfectant has good chemical stability and does not easily decompose, making it convenient for storage and use.

• Efficient cleaning capability: It can decompose organic matter and dirt, enhancing disinfection effects while eliminating odors.

• Low toxicity: Compared to some strong oxidizers, potassium monopersulfate disinfectant has relatively lower toxicity to the environment and animals, but attention to dosage and operational safety is still required when using it.

In the aquaculture industry, potassium monopersulfate disinfectant is often used for water disinfection, and cleaning and disinfection of equipment and sites. When used correctly, it can effectively reduce the proliferation of pathogens, maintain a hygienic breeding environment, reduce disease incidence, and improve aquaculture efficiency.

Disinfection Mechanism of Potassium Monopersulfate Disinfectant

Oxidative Destruction

• Cell membrane destruction: Potassium monopersulfate disinfectant decomposes in water to generate sulfate ions (SO₄²⁻) and hydroxide ions (OH⁻). These oxidative substances can attack and destroy the lipid bilayer of microbial cell membranes, increasing their permeability or causing rupture, ultimately leading to cell death.

• Protein Denaturation: The active oxygen substances in potassium monopersulfate disinfectant can oxidize the proteins inside microorganisms, altering their structure and function, leading to the inactivation of their enzyme systems and other key proteins, thereby inhibiting growth or causing death.

Destruction of Genetic Material

Oxidation of DNA and RNA: The oxidizers in potassium monopersulfate disinfectant can react with the genetic material (DNA and RNA) of microorganisms, causing damage and mutations that prevent their reproduction and growth.

Oxidative Decomposition of Organic Matter

Oxidation of dirt and organic matter: Potassium monopersulfate disinfectant can effectively oxidize and decompose organic matter and dirt in the water, reducing the nutrients available for microbial growth, thereby lowering contamination sources.

Release of Active Oxygen Substances

In water, potassium monopersulfate disinfectant decomposes to produce sulfate radicals (SO₄•⁻) and hydroxyl radicals (OH•). These active oxygen substances have strong oxidative properties that attack and destroy key molecules of microorganisms, thereby effectively disinfecting them.