What is a Biocide?
A biocide is a chemical substance or microorganism, which is intended to destroy, render harmless, or control potentially harmful organism. Biocides are defined as "a diverse group of poisonous substances used to control organisms that are harmful to human or animal health or cause damage to natural or manufactured products, including preservatives, insecticides, disinfectants, and pesticides."
When discussing biocides, it is important to distinguish between the biocidal active substance and the biocidal product. Biocidal active substances are mostly chemical compounds, but microorganisms can also be present (e.g. bacteria). Biocidal products contain one or more biocidal active substances as well as other non-active co-formulants that ensure the final product's effectiveness as well as the desired pH, viscosity, color, and odor, among other things.
What is the use of biocides and What are the advantages?
Microbiological activity control is an important activity in many commercial, manufacturing, and industrial process applications. Chemical biocides are critical for maintaining water conditions at all times in order to ensure systems are safe, well-maintained, and operate at peak efficiency.
This is possible with the use of carefully selected biocides in conjunction with dispersants. They are ideal for a wide range of environmental hygiene and industrial and process water treatment activities that necessitate effective microbiological activity control in water.
Biocides can be used for a variety of purposes, including:
2.Under slime deposits, bio-corrosion occurs
3.Excessive operation of cooling fans results in energy loss
4.Circulation pumps and inefficient heat exchangers
What are the advantages?
Biocides were created to be toxic to microorganisms like bacteria and mold. When the appropriate biocide is used in the appropriate concentration, it is usually effective, producing a quick result in parts of the system where metalworking fluid circulates well. When bacterial problems arise, biocides are easy to use, can sometimes compensate for system flaws, and are readily available.
Biocides that are common
1: The element chlorine (sodium hypochlorite)
Chlorine is one of the most commonly used biocides, owing to its low cost and ease of availability. While it is usually the cheapest option, due to its high volatile and oxidative state, it can be harsh on the metals used in piping systems. When not fed at the proper dosages, it has been shown to cause corrosion in domestic water piping and cooling tower systems. Chlorine can also produce NTM (trichloronitromethane), a carcinogenic byproduct.
2: Chlorine Dioxide
Chlorine dioxide is a chlorine-based molecule that is used in both domestic and process water treatment. Its ability to succeed in all types of makeup water makes it an appealing option. It has the ability to penetrate both the sessile and planktonic levels of the biofilm. While it is less aggressive than chlorine, its stability in hot water is not ideal. Another potential disadvantage is that the chemical may need to be produced on-site by a generator.
3: Stabilized Bromine
Stabilized bromine is used to disinfect cooling towers and is an excellent choice for spas and other environments with warmer water. Bromine is more expensive than chlorine, but it is more stable in warmer temperatures. It has a milder odor and is less irritating to the skin. It works in a wider pH range and dissolves slowly, allowing you to maintain water quality for a longer period of time.
Netsol Water are the experts for providing better treatment options for water and wastewater. We have wide range of products and we can customize many as per customer’s requirement. We can provide solutions that are trouble-free and cost-effective.