Biocides and Effectiveness

Effectiveness of biocides against bacteria, fungi and algae

Biocide effectiveness against bacteria, fungi and algae:

Oxidizing Biocides

Chlorine (Cl2)

  • bacteria - excellent
  • fungi - good
  • algae - good

Usable pH-range 5 to 8.

Chlorine is a powerful oxidant and is used in bleaching and disinfectants, as well as an essential reagent in the chemical industry. As a common disinfectant, chlorine compounds are used in swimming pools to keep them clean and sanitary.

Chlorine Dioxide (ClO2)

  • bacteria - excellent
  • fungi - good
  • algae - good

Insensitive to pH.

As one of several oxides of chlorine - it is a potent and useful oxidizing agent used in water treatment and in bleaching.

Bromine

  • bacteria - excellent
  • fungi - good
  • algae - poor

Usable pH-range 5 to 10.

Bromine, like chlorine, is used in maintenance of swimming pools. It is also used in water purification compounds, disinfectants and insecticides.

Ozone

  • bacteria - excellent
  • fungi - good
  • algae - good

Usable pH-range 7 to 9.

Ozone is used to disinfect laundry in hospitals, food factories, care homes etc, to disinfect water in place of chlorine, deodorize air and objects, to kill bacteria on food or on contact surfaces, to sanitize swimming pools and spas, to kill insects ...

Non-Oxidizing Biocides

Carbamate 

  • bacteria - excellent
  • fungi - poor
  • algae - poor

Usable pH-range 5 to 9.

Used in insecticides.

Organobromide (DBNPA) 

  • bacteria - excellent
  • fungi - poor
  • algae - poor

Usable pH-range 6 to 8.5.

An effective fumigant.

Methylene bis(thiocyanate) (MBT)

  • bacteria - excellent
  • fungi - poor
  • algae - poor

Decomposes above pH 8.

Methylene bis(thiocyanate) is used as a microbiocide/microbiostat, fungicide/fungistat, algicide, and disinfectant.

Isothiazoline 

  • bacteria - excellent
  • fungi - good
  • algae - good

Insensitive to pH.

Triazine 

  • bacteria - no control
  • fungi - no control
  • algae - excellent

Usable pH-range 6 to 9.

Triazine compounds are often used as the basis for various herbicides.

Related Topics

  • Environment - Climate, meteorology, sun, wind and environmental resources

Related Documents

Matched Content

Tag Search

Search the Engineering ToolBox

- "Search is the most efficient way to navigate the Engineering ToolBox!"

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your SketchUp model with the Engineering ToolBox - SketchUp Extension/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

close