Prefiltratsioonina

Prefiltratsioonina, also known as prefiltration, is a process used in water treatment and filtration systems to remove large particles and debris from water before it enters the main filtration stage. This preliminary step is crucial for extending the lifespan of the primary filters and ensuring the overall efficiency of the water treatment process.

The primary goal of prefiltration is to protect the downstream filtration media, such as activated carbon or sand filters, from clogging and damage caused by large particles. By removing these particles, prefiltration helps maintain the permeability and effectiveness of the main filters, thereby prolonging their service life and reducing the frequency of maintenance and replacement.

Prefiltration can be achieved through various methods, including mechanical screening, sedimentation, and the use of coarse media filters. Mechanical screening involves passing water through a series of screens with progressively smaller mesh sizes to remove large particles. Sedimentation allows particles to settle out of the water over time, while coarse media filters use layers of gravel or sand to trap and remove larger impurities.

The design and configuration of the prefiltration system depend on the specific requirements of the water treatment application, including the type and concentration of contaminants present in the water source. Proper prefiltration ensures that the water entering the main filtration stage is of high quality, free from large particles, and ready for further treatment processes such as disinfection and chemical addition.