The main purpose of screens is to mechanically separate insoluble particles from wastewater. They perform the following functions:
- Working hours: MON-FRI 9:00 - 18:00
Sieves
Sieves
Screens are one of the key elements of mechanical wastewater treatment in wastewater treatment plants. They are used at the initial stage of treatment and are designed to remove solid impurities of various sizes. Such impurities include household garbage, organic residues, plastic, textiles and other inclusions that enter the wastewater.
The use of sieves allows you to significantly increase the efficiency of the entire cleaning system, preventing damage to equipment and reducing the load on subsequent technological processes.
Purpose of sieves
- retention of large and medium mechanical impurities;
- protection of pumps and pipelines from clogging;
- reducing the load on biological and chemical purification stages;
- increasing the efficiency of further water treatment.
The sieves have a relatively simple design, which ensures their reliability and efficiency.
The main elements are:
- frame - holds the entire structure;
- working surface - consists of holes or slots of a certain size;
- cleaning system - can be manual or automatic;
- Drive (if available) - provides movement of elements in mechanized sieves.
The size of the holes determines the degree of cleaning: the smaller the holes, the smaller the particles are retained.
Working principle
The principle of operation of sieves is to filter wastewater through holes or slots. The water passes through the sieve, and solid particles are retained on its surface.
Depending on the type of equipment, sieve cleaning can be carried out:
- manually (periodic garbage removal);
- mechanically (using scrapers or brushes);
- automatically (without human intervention).
The collected waste is transported for further disposal.
Classification of sieves
Sieves are classified according to several characteristics:
By degree of purification:
- coarse - for large particles;
- medium - for medium-sized particles;
- thin - for small impurities.
By method of operation:
- immobile;
- movable;
- automated.
Role in modern wastewater treatment plants
In modern wastewater treatment systems, screens are an essential element. They are integrated into automated systems, equipped with pollution level sensors and self-cleaning systems.
This increases the stability of the operation of treatment facilities, reduces the impact of the human factor, and improves the quality of water purification.
Screens play an important role in the wastewater treatment process, ensuring the primary removal of mechanical impurities. The operation of the entire treatment system depends on their efficiency. Despite the simplicity of the design, they remain an indispensable element of modern treatment facilities.