4 Common Water Filtration Technologies

Water filtration technology is something we rely upon to have instant access to clean drinking water. Water filtration is the process of removing or reducing the concentration of impurities and microorganisms from contaminated water and making it safe to drink. Water purification removes all kinds of suspended particles, parasites, bacteria, algae, viruses, fungi, and a variety of other undesirable chemical and biological contaminants.

In this article, we’re going to cover some water filtration technologies that can purify the water to extremely low levels, while others remove a wider array of unwanted particles. In some cases when nonpotable water is heavily contaminated, a combination of a few filtration technologies, including a water filtration bottle, is necessary.

Let’s look at some of the major water filtration technologies:

Electrodeionization [EDI] 

According to Wikipedia, “Electrodeionization is a water treatment technology that utilizes electricity, ion exchange membranes and resin to deionize water and separate dissolved ions from water.”

How does it work?

First, the use of the EDI module is needed. Water enters the EDI, where an applied current forces ions to move through the resins and across the membranes. These ions are then grouped into concentrated streams, which are next being recycled or alternatively put to drain. The ionized water after this treatment is safe to drink.

Ion  Exchange

Ion Exchange, as the name suggests, is the exchange of ions between ionized particles in the contaminated water with ion exchangers such as H+ and OH- ions. The process is reversible and the original state can be regenerated by washing through excess ions. 

How does it work?

Ion exchange involves passing the non-potable water through beads of ion exchange resins where the ions in solution travel into the beads. 

Deionization beads are either cationic or anionic and exchange either H+ ions for cations (e.g. Na+, Ca2+, and Al3+) or OH- ions for anions (e.g. Cl-, NO3- and SO42-). The hydrogen ion from the cation exchanger unites with the hydroxyl ion of the anion exchanger to form pure water.

Once the packs are exhausted, they can be regenerated by washing through with an excess of desirable ions using strong acids and bases.  

Ultraviolet [UV] Light

Ultraviolet light is used in water filtration bottle as a method to kill and completely remove any impurifications and microorganisms by disrupting their DNA, effectively preventing replication. Ultraviolet light is the water purification technology used in our  UV water bottle cap.

How does it work?

UV radiation disrupts DNA and RNA enzymes at low doses while breaking down large organic molecules into smaller ionized components in the water filtration bottle. Ultraviolet can also remove any chlorine and chloramine contaminants from the water in the UV light water bottle.

Treatment of water with UV light is used to photo-oxidize organic impurities and micro-organisms. 

UV light purification is the most convenient water treatment - as available in CrazyCap UV light water bottle. It can not only purify water at home, in the gym, or at the office but with 5x crazy purification in the cap, it can even treat water from the lakes or rivers - perfect for your next trip.

Reverse Osmosis [RO]

Reverse Osmosis is a water purification process that uses a partially permeable membrane to remove ions, unwanted molecules and larger particles from drinking water.”

Reverse osmosis is a cost-effective way to remove impurities from non-potable water with the use of a semi-absorbent membrane. 

How does it work?

This technology involves pumping the non-potable water and passing it through the RO membrane under pressure in a cross-flow application.

Reverse osmosis technology is often used at homes where the municipal water is not safe to drink as it’s the most budget-friendly water purification system that treats larger volumes of water.

Reverse Osmosis uses membranes made from thin-film polyamide which can treat a wide range of pH waters.

It’s important to pretreat the non-potable water before applying Reverse Osmosis technology to protect the membranes from oxidizing elements such as chlorine.

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