Countertop water filtration system .pdf
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Anything other than water molecules is defined by law
as “contaminant” (EPA) Some of them are are
harmful, while others are harmless.
Drinking water always has some amount of
contaminants, they does not necessarily indicate that
the water poses a health risk, but they may be harmful
if consumed at certain levels. The following are
general water contaminants types are:
- Physical contaminants impact the physical
appearance of drinking water: sediment from soil
erosion in river water, organic particles, etc.
- Most known chemical contaminants are man-made,
but in addition to pesticides, salts and metals they also
includes toxins produced by bacteria.
- Organisms in water are biological contaminants:
viruses, bacteria, parasites, and protozoan.
- Radiological contaminants are represented by
elements that can emit ionizing radiation: cesium,
plutonium and uranium.
Household water filters help to remove or reduce
chlorines, heavy metals, hydrogen sulfide and so on.
Although water filters are not always an end-solution
in the removal of bacteria, most of them inhibit further
development of bacteria, algae and fungiviruses. UV
units and sub-micron filters can reduce
microorganisms amount to the safe level.
Colorless, clear, and odorless water may not have the
right quality. Use of a household activated carbon
filter makes drinking water safer, but it is not always
sufficient for treating water from an unknown source.
You need to test even natural spring water to drink it safely.
Countertop water filtration system removes biological contamination. However, this definition does
not include physical and chemical contaminants such as the ones water filters remove. This is why
water filtration and water purification systems are often used in conjunction – filter eliminates
unwanted chemical contamination and purifier removes biological threats.
Water purification removes physical, chemical, biological and radiological contaminants from
water. The goal is to produce water for human consumption, pharmacological, chemical, medical,
and other applications. The most used methods are filtration and distillation; in industrial
applications also used flocculation, chlorination, and ultraviolet light radiation.
Water filtration systems supply you with safer and healthier water without dangerous amount of
contaminants, bacteria and viruses. Water filtering and purification make the water cleaner and
healthier, reduces chemical impurities, bacteria and viruses amount and even prevent scale build-up
in your appliances.