When it comes to wastewater treatment, one size does not fit all. Different types of wastewater require different treatment approaches.
There are several types of wastewater ban screens available on the market, each with its own advantages and disadvantages. It’s important to choose the right type of screen for your particular operation to ensure optimal performance and efficiency.
Common Wastewater Mechanical Screens
The most common wastewater mechanical screens are bar screens, coarse screens, fine screens, and microstrainers.
Bar screens are typically used to remove large objects from the wastewater stream, such as rags, sticks, and stones. They are also sometimes used to remove floating debris, such as leaves and grass clippings. Bar screens can be made from a variety of materials, including stainless steel, plastic, and aluminum.
Coarse screens can remove medium-sized objects from the wastewater stream, such as grit, sand, and small stones. They are usually made from stainless steel or plastic.
Fine screens help remove small objects from the wastewater stream, such as hair, lint, and paper fibers. They are usually made from stainless steel or plastic.
A microstrainer is a type of fine screen that can remove very small objects from the wastewater stream, such as bacteria and viruses. Microstrainers are usually made from stainless steel or plastic.
Difference Between Wastewater Screening and Filtering
Wastewater screening is the process of removing solid materials from sewage. Wastewater filtering is the process of removing dissolved materials from sewage. Both processes are important for ensuring that sewage is properly treated before it is discharged into the environment.
You would use filtering if you wanted to remove dissolved materials, such as metals or nutrients, from the sewage. A typical wastewater filter is a screen filter. A screen filter has a series of screens with progressively smaller openings. The sewage flows through the screens and the dissolved materials are trapped on the screens.
How Often Should You Replace Your Wastewater Screens?
The frequency with which you need to replace your wastewater screens depends on several factors, including the type of screen, the material it’s made from, the wastewater flow rate, and the pollution level in the wastewater. In general, stainless steel screens should be replaced every one to two years, while plastic screens should be replaced every three to five years.
You may need to replace your screens more frequently if the wastewater flow rate is high or if the level of contamination is particularly high.
To extend the life of your screens, it’s important to clean them regularly. Depending on the type of screen, you may be able to clean them with a power washer, a brush, or a hose. You can also clean them with a chemical cleaner, such as bleach or acid.
In conclusion, you have several options for wastewater screens. Make sure to choose the right type of screen for your operation and to clean and replace it regularly. Doing so will help ensure optimal performance and efficiency.
Categorised in: Sewage Systems