Well Water Purification

Due to the increasing encroachment of industrial society, the widespread pollution being spewed out by factories 24/7 , it is now necessary for all those using well water for their water supply to install a water well purification system to remove harmful, and even potentially fatal, pollutants from the water.  Put simply, no matter where you live – you are constantly exposed to water pollutants and need to find ways to eliminate them.

Types of water well purification systems

There are many different types of well purification systems but not every system is suited for every type of pollution.

That’s the purpose of this article, to give you some basic information regarding the various systems and technologies used for water well purification systems.  From there on in, the rest is up to you, we won’t be addressing budget considerations or possible future developments but we are sure that using the information provided here, you’ll be able to make an informed decision.

Testing your water

Step one is to get your well water tested by a certified laboratory.  In order to know which type of water well purification system you need, you must know which pollutants appear in your water and their density.  Without taking this preliminary step, any choice for a water well purification will be a shot in the dark.

Reverse Osmosis

Reverse Osmosis is by far the most common form of water well purification systems and also the most well known.

Most filtration systems include a reverse osmosis stage which is often used to reduce excess concentrations of calcium or sodium and other water suspended particles.  Reverse osmosis will also remove above permitted levels of lead and, according to some sources, prevent infections from water borne parasites.

Reverse osmosis has two main drawbacks: 

  • It can also filter out vital trace elements which, unless replaced, can be detrimental to your health.
  • The system works using a series of membranes.  According to the particle density of your water, these membranes need to be changed.  This isn’t a cheap process and many reverse osmosis systems also include a pre-filtration system to remove particles.

Ion Exchange water well purification

These water well purification systems use a membrane or bead shaped resin to achieve a balance in mineral content and the pH level of the water.  They can also reduce lead, copper or cadmium content by up to 99%!   Ion exchange resins cannot remove chlorine concentrations and are often used with an activated charcoal filter to remove excess levels of chlorine.

GAC, Carbon Block, Resins and Activated Aluminum

Well water purification systems such as these are used to reduce chemical concentration, chlorine for example. The carbon block is especially effective as it manages purify almost 100% of the water.  Special resins are utilized to remove chemicals such as THM’s and MTBE as they are not affected by carbon.

Even though carbon can be used to effectively remove fluoride compounds, activated aluminum is far more efficient and widely used.  One drawback of this system is that activated aluminum can only be used on a one tap.  A “whole house” water purifier is by and large used for household wide purification and fluoride elimination.

Particle Filtration

This water well purification method makes use of extremely absorbent materials to catch and remove impurities. This system does not, however, remove the essential minerals and salts from the water.   In areas where there is a danger of solid particle contaminants (asbestos fibers, cysts, parasites etc.) this type of system will, if maintained properly, perform a more than adequate job.

So, there we have it! Hopefully, you will be able to use the information here in order to evaluate your water well purification needs and make a final decision as to the best water well purification system to provide you with fresh, unpolluted water.

Further reading: Drinking Water Standards

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