How to Choose a Bactericidal Algaecide for a Water Cooling System?

In water cooling system, especially in a cooling tower pool, due to the appropriate temperature and the slime minerals in the water providing nutrients, microorganisms reproduce rapidly. Microorganisms can make the water acidic and dirty, and the resulting biofilm accelerates the accumulation of scale and equipment corrosion, while seriously reducing the heat exchange efficiency of the cooler.

At this time, a bactericide is needed. Commonly used bactericides and algaecides in water cooling systems are generally divided into oxidizing bactericides and non-oxidizing bactericides. What are the characteristics of these two types of bactericides and how to choose them?

Oxidizing bactericides and algaecides are a kind of agent that inactivates the active enzymes in bacteria or directly oxidizes bacteria with its strong oxidizing properties, making the bacteria inactive. It can also be used as a disinfectant.

Common types of oxidizing fungicides and algaecides are:

1. Hypochlorous acid fungicides (such as chlorine, sodium hypochlorite, etc.)

2. Bromine and bromine compounds

3. Chlorine dioxide

4. Ozone

The principle of non-oxidizing fungicides and algaecides is not to kill bacteria by oxidation, but to act on a specific part of the microorganism in the form of a toxic agent, thereby destroying the cells or life parts of the microorganism to achieve the purpose of sterilization.

Common types of non-oxidizing fungicides and algaecides are:

1. Quaternary ammonium salts/quaternary phosphonium salts

2. Organic bromines?

3. Isothiazolinones

4. Chlorophenols

5. Organic aldehydes

6. Organic substances containing heavy metals

When choosing a fungicide, you need to consider:

1. The degree of microbial contamination of the water system and the type of bacteria;

2. The pH value range of water quality;

3. The content of ammonia nitrogen or organic impurities in the water, etc.

Zhengzhou Hoo Chemtec is the leading supplier for bactericidal algaecide in China. If you need , welcome to contact us.