Quick Answer
Purification and filtration are often used interchangeably, but purification involves a broader range of methods to remove contaminants, including chemical disinfection and distillation, whereas filtration specifically refers to the removal of particles through a physical barrier.
Understanding Purification and Filtration
Purification is a critical aspect of water treatment, particularly in survival situations where access to safe drinking water may be limited. The goal of purification is to remove all contaminants, including bacteria, viruses, and chemicals, to produce water that is safe to consume. This can be achieved through various methods, such as boiling, chemical disinfection, and distillation.
Filtration Techniques
Filtration is a popular method for removing particulate matter and contaminants from water. A well-designed filter can remove up to 99.99% of particles as small as 0.2 microns, making it an effective means of purifying water. For example, a Sawyer Mini water filter can remove bacteria, viruses, and parasites from water, making it a reliable option for outdoor enthusiasts. When selecting a filter, it’s essential to consider the type of contaminants present in the water source and the filter’s ability to remove them.
Comparison of Filtration and Other Purification Methods
While filtration is an effective method for removing particulate matter, it may not be sufficient to remove all contaminants, particularly viruses and chemicals. In such cases, additional purification methods, such as chemical disinfection or distillation, may be necessary. For example, using a 1% bleach solution to disinfect water can kill up to 99.9% of bacteria and viruses, while distillation involves boiling water and then collecting the condensed steam, which is free from many contaminants.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.