What are Bacteria?

Bacteria MorphologyBacteria refers to a wide range of microorganisms which include coliform, cyanbacteria (algae), staphylococcus, legionella pneumophila (Legionaires’ disease), shigella dysenteriae (Dysentery), and escherichia coli (E. coli). Bacteria are some of the first forms of life to develop and can be found in almost every habitation the planet.

Is There Bacteria in My Water?

Giardia in Drinking Water

Testing for specific types of bacteria is time-consuming and costly. Instead, organizations like the EPA and local water providers will test for Coliform bacteria, as it is an indicator that a water supply could be contaminated.

How To Remove Bacteria From Your Drinking Water?

There are multiple ways to disinfect drinking water. These are ultraviolet disinfection, continuous chlorination, shock chlorination, and distillation. Ultraviolet (UV) disinfection uses natural radioactive light to damage the DNA in microbes, preventing them from reproducing. Continuous chlorination disinfects using chlorine, however it will add a taste and odor to the water, not to mention trihalomethanes (THMs) can form when the chlorine interacts with organic matter present in the water. Shock chlorination uses chlorine as well, however this is a temporary solution. Distillation is the method of boiling water until it turns into steam, then re-condensing the steam back into water which kills any organism in the process. However distillation requires a lot of energy and time when compared with other purification methods.

Ultraviolet Systems Ceramic Filter Cartridges & Candles MAF-14EP Under Sink System

Look for this seal:

NSF 55 Certified


NSF/ANSI Standard 55: Ultraviolet Microbiological Water Treatment Systems
Overview: This standard establishes requirements for point-of-use (POU) and point-of-entry (POE) ultraviolet systems and includes two optional classifications. Class A systems (40,000 uwsec/cm2) are designed to disinfect and/or remove microorganisms from contaminated water, including bacteria and viruses, to a safe level. Class B systems (16,000 uw-sec/cm2) are designed for supplemental bactericidal treatment of public drinking water or other drinking water, which has been deemed acceptable by a local health agency.

Sources of Information on Bacteria

Ultraviolet Purification

The foregoing information was compiled from the the links listed above.