How Does a Pool Filtration System Work?

Swimming pool filtration can be performed utilizing various technologies. These technologies work differently and use different filtration principles. Yet, with the most effective solution, chemical consumption is reduced, and more than 99 % of unwanted particles are removed. This ultimately delivers cleaner, clearer, and safer water. Let us dive into the details of how a commercial pool filtration system works.

The conventional sand filter within swimming pool filtration is the most utilized technology due to its relatively low price. Yet, as this solution was developed approximately 150 years ago, it is not durable or sustainable. As sand filters come with a large pore structure, they often fail to provide adequate and effective cleaning without employing flocculant chemicals. Additionally, the sand in the filter must be replaced every 3-5 years due to erosion. To supersede this outdated technology, new modern commercial pool filters have been developed. One of these industrial pool filters is ceramic membranes. As ceramic membranes possess an extremely small pore structure, they deliver effective and thorough cleaning with a minimal need for chemicals without compromising water quality and safety. Moreover, they can go on and on without replacement. Click here to learn more about sand filters vs. membrane technology.

The Details of Commercial Pool Filters

Utilizing our refined, state-of-the-art commercial pool filters, the LiqTech commercial pool filtration system is an automated solution, which can be operated remotely. Click here to learn more about how a commercial pool filtration system is operated. The pool filtration system automatically monitors flow, temperature, pressure, and pressure drop. This data can be read anywhere, anytime, meaning that you can operate your pool and spa area from home, on the go, or wherever you may be. Click here to learn more about ceramic membranes.

Commercial Pool Filtration Principle Liqtech

Dirty Water In – Clean Water Out

Dirty pool water is pumped into the ceramic membranes through a feedwater inlet during filtering operation. The ceramic membranes are designed as a dead-end design with several parallel flow channels. This design ensures that no contaminated water can pass through the filter, making up a mechanical barrier against micro-organisms. The porous pool filter will retain particles, bacteria, and protozoa, while clean water permeates its surface.

The ceramic membranes operate within microfiltration and remove all harmful elements, including bacteria, viruses, protozoa, crypto, and other hazardous elements.

The ceramic membranes are made of silicon carbide, which provides unique advantages such as unmatched flux, excellent thermal properties, and robustness. Click here to learn more about silicon carbide.

Due to a compact design, one membrane has a filtration area of 7 m2 for a Ø146 x 800 mm membrane. This compact design makes the ceramic membranes ideal for system installation or upgrades in limited spaces or difficult access as a whole water filtration system can fit through a standard doorway.

Once cleaned by the membranes, the clean pool water will flow out of the feedwater outlet.

As the ceramic membranes operate, they will eventually get fouled as particles and biomass accumulate on the surfaces. To remove fouling, the membranes are cleaned with backwash. Click here to learn more about how ceramic membranes are cleaned.

Frequent backwashing of the ceramic membranes can help reduce chloramines and trihalomethanes, which will deliver a healthier pool environment, causing less skin and eye irritation and lowering the risk of illnesses such as allergy and asthma.

And not only is membrane technology effective in delivering cleaner water, but it is also a sustainable solution.

Ceramic membranes can deliver:

  • 30 % reduction in chemical use
  • 40 % reduction in combined chlorine
  • 40 % reduction in pool water turbidity
  • 40 % reduction of trihalomethanes
  • 70 % reduction in water consumption for backwash

It is thus a cost-effective solution to ensure safe, clean, and clear water. We have commercial pool filter cases, where the payback time has been as low as three years.

Dirty water in, clean water out. It is as simple as that.

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