High efficiency filter with built-in activated carbon layer

High efficiency filter with built-in activated carbon layer– this is a seemingly simple name. But behind it lies a whole world of engineering solutions and practical difficulties. Many people believe that if there is coal, the filter automatically becomes effective. This is a misconception. In fact, the key to high performance is a combination of the right type of carbon, its optimal concentration, thoughtful filter design and, of course, understanding the specifics of the air being purified. We have collected the experience gained in the development and production of air purifiers and will share it.

Understanding the Role of Activated Carbon in Filtration

Activated carbon is more than just carbon. It is a material with a huge surface area, which allows it to adsorb a wide range of contaminants: odors, volatile organic compounds (VOCs), gases, some bacteria and viruses. Its effectiveness directly depends on the activation method - on temperature, chemical reagents used in the processing process. Different types of coal work better with different pollutants. For example, carbon activated using special reagents is better suited for removing ammonia, and carbon with high porosity and micropores is better for removing odors.

Don't underestimate the importance of choosing the type of coal. We had experience working with different suppliers, and the 'cheapest' coal was not always the most effective. Often time and resources had to be spent testing different samples to find the best option for a particular application. This may seem excessive, but the quality of the final product directly depends on it.

Filter design and carbon layer distribution

Even the highest quality carbon will not be able to perform if it is incorrectly positioned in the filter design. It is not only the quantity of coal that is important, but also its distribution. Optimally, this is a uniform layer that provides maximum contact area with air. But this is not always possible, especially with limited space. Often compromises must be made by placing carbon filters in separate sections or layers of the filtration system. This creates additional maintenance difficulties, but allows an acceptable level of cleaning to be achieved.

We have developed a filter design in which the carbon layer is located in front of the main coarse filter. This removes large particles of contaminants, extending the life of the carbon filter and increasing its efficiency. Some manufacturers use carbon only as a secondary filter, which, as a rule, does not provide sufficient air purification.

Adsorption Problems and Humidity Effects

Activated carbon is an adsorbent, and adsorption is a process that is highly dependent on air humidity. At high humidity, the adsorption capacity of coal decreases. This is because water competes with contaminants for access to active sites on the surface of the coal. Therefore, when designing air purifiers for wet rooms, it is necessary to take this factor into account and use special materials that are resistant to moisture.

For example, in production areas with high humidity, we recommend using carbon filters with the addition of special hydrophobic polymers that improve their adsorption properties. We conducted tests with different additives and came to the conclusion that this can significantly increase the efficiency of air purification even at high humidity.

Practical application examples

Our activated carbon filter has proven success in a variety of applications, from air purification in manufacturing facilities to odor removal in healthcare facilities and VOC removal in office environments. One of the interesting projects is air purification in a chemical laboratory. There a wide range of hazardous gases and vapors must be removed. We used special carbon, activated using high-temperature treatment, and achieved a significant reduction in the concentration of harmful substances.

Another example is air purification in a server room. There it is important not only to remove dust and particles, but also to prevent the formation of odors that could damage the equipment. We have developed a filter with a carbon layer that effectively adsorbs odors and does not affect the temperature and humidity of the air in the room.

Filter maintenance and replacement

Regular maintenance and timely replacement of filters is the key to effective operation of the air purifier. The service life of a carbon filter depends on the intensity of its use and the concentration of pollutants in the air. On average, the carbon filter needs to be replaced every 6-12 months. A sign of filter wear is a deterioration in the quality of air purification or the appearance of unpleasant odors.

We recommend visual inspection of the filter at least once a month. If the filter is very dirty or begins to emit an unpleasant odor, it must be replaced. It is also important to follow the rules for disposing of used filters, as they may contain hazardous substances. In ?Tianjin Tongchang Junqi Cleaning Equipment Co.,Ltd. We offer filter replacement and recycling services.

Conclusions and prospects

High efficiency filter with built-in activated carbon layeris an effective solution for purifying air from a wide range of pollutants. But to achieve maximum efficiency, it is necessary to take into account many factors: type of coal, filter design, air humidity and application features. We are constantly working to improve our filters and develop new technologies to offer our customers the most advanced and effective air purification solutions. We actively cooperate with research institutes, such as the Air Conditioning Research Institute of the China Institute of Building Sciences, to develop new materials and technologies. More detailed information about our products and services can be found on our website:https://www.tcfilter-group.ru.