Dust is one air contaminant that can be removed through certain physical processes that require the use of particle-collecting devices. The device needed depends on the types of dust found in the place.
In situations where wet dust is present, a combination of dry and wet collectors may be necessary. For combustible and reactive dust, however, Dualdraw.com says a dedicated wet collector will be more efficient.
Wet collectors can control harmful and combustible particles like gases through absorption. According to an online article, in this process, gaseous pollutants are transferred from the air into a contacting liquid, such as water.
Different types of gas absorption devices can be used for this purpose. Each has its strength, such as high collection efficiency, higher liquid flow rates, lowered resistance to airflow, and reduced cross-sectional area.
In terms of general advantages, the following can be expected:
- Affordable initial cost
- High collection efficiency, especially when it comes to small particles
- Works in high temperatures
- Allows for simultaneous removal of particles and gases
- No particle re-entrainment
Uses and Applications
Wet collectors are often used in industries where production causes the release of gaseous toxins in the air. These include factories producing fertilizers and glass products. Chemical plants, as well as rendering plants, also use these devices for removing odor. Areas with flammable gases also prefer these devices to an electrostatic precipitator, regardless of the amount present.
Special uses or benefits may also be found in wet collectors, especially the spray types. The conveying system of this device may find isolation valves, additional controls, and fire suppression unnecessary. Moreover, the need for air makeup systems and high-efficiency particulate airs filters may also be eliminated.
Each method for air-pollution controls is unique. This also holds true for the device or combination of devices used. Like with wet collector devices, these are suitable for removing gaseous particles that can be harmful to health and the environment.