Iranian Firm Produces Nanofilters to Improve Dust Absorption in Power Plants

An air filter is a tool used to protect power plant parts from damage by dust particles, pollution and other harmful particles in the air. Nanofibers with less thickness and more specific surface area than normal fibers have many applications in filtration, and electrospinning is one of the important and effective processes in the production of nanofibers made from synthetic and natural polymers.

Electrospun fibers are used to improve the filter’s performance and efficiency. This technology, while increasing the efficiency of dust absorption, does not cause a large pressure drop. Electrospun fibers have a diameter of less than 100 nm and cover the surface of the filter paper uniformly. The material of these nano fibers is usually polyamide.

Improvement of filtration efficiency by reducing the size of the holes, increasing the lifespan of the filter by using surface filtration and using nano fibers made of polyamide are ammong the most important features of this filter.

The product was manufactured with the support of the Nanotechnology Innovation Council of the Iranian Vice- Presidency for Science, Technology and Knowledge-Based Economy and by the knowledge-based ‘Stareh Taban Pak’ company in Anzali Free Zone in Northern Iran.

Also earlier this year, an Iranian knowledge-based company produced an air purifier equipped with nanotechnology filters which, in addition to removing airborne dust and microbes, has the ability to remove more than 99 percent of particles.

The company has used two types of fiber filters containing nanoparticles and zeolite carbon filter in its air purifier that has given the device the ability to remove toxic gases and suspended particles.

Experiments show that the performance of the company's ultrasonic antimicrobial system can reduce the microbial load by 100 times.

Using two ultrasound systems and nanofilters, the device can remove more than 99 percent of suspended particles.

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