Does Bleach Kill Protozoa?

Microorganisms are bacteria, molds, fungi, protozoa and algae, among others. Bleach kills illness-causing microorganisms by attacking the proteins that make up the bacteria, algae, etc. This causes the proteins to unfold and break apart which leads to the death of the microorganism.

What disinfectant kills protozoa?

Since protozoa are relatively large micro- organisms, they are easier to filter out than bacteria and viruses. Drinking water is disinfected to destroy or inactivate the micro-organisms that are not filtered out. Chlorine is the most common disinfectant in the world. It can work against Giardia but not Cryptosporidium.

How do you kill protozoa in water?

To kill or inactivate Cryptosporidium and Giardia, water should be kept at a rolling boil for one minute (at elevations above 6500 feet, boil for three minutes). Water should then be allowed to cool, stored in a clean sanitized container with a tight cover, and refrigerated [31,85].