With the continuous acceleration of urbanization, sewage treatment has become a link that cannot be ignored in urban construction. As an important facility to treat sewage, sewage treatment plant plays a key role. In the sewage treatment process, the grating is an important equipment for removing solid impurities in the sewage. This paper will focus on several types of grates in sewage plants: coarse grates, fine grates, filter grates and chemical grates, and discuss their application and advantages in sewage treatment.

First, FRP coarse grille

Fiberglass coarse grille is a device used to remove large solid impurities from sewage. It is usually made of glass fiber reinforced plastic, which has excellent corrosion resistance and high strength characteristics. The structural design of the coarse grid enables it to effectively trap large particles of solid waste, such as branches, plastic bags, etc., to prevent these impurities from causing damage to subsequent treatment equipment.

In the sewage treatment plant, the coarse grille is often the first barrier for sewage to enter the treatment system. By using coarse grilles, large particles of impurities can be prevented from entering the subsequent processing unit, thus protecting the normal operation of the subsequent processing equipment. In addition, the self-cleaning performance of the coarse grille also reduces the frequency of maintenance and cleaning in the process of continuous sewage treatment, reducing operating costs.

Two, glass steel grille

Fiberglass grille is a device used to remove small solid impurities from sewage. It is usually composed of a fine grid plate, which can trap small impurities in the sewage, such as suspended solids, sand and so on. The design of the fine grid enables it to effectively improve the purification effect of sewage when treating sewage and ensure that the discharged water quality meets environmental protection standards.

Fine grating plays an important role in sewage treatment. It can effectively remove fine particles in sewage and prevent the impact of these impurities on subsequent treatment units and biological treatment systems. At the same time, the structure of the fine grid is compact and occupies less space, which is suitable for sewage treatment plants with limited space.

Three, glass steel filter grille

Fiberglass filter grille is a device that combines grille and filter functions. It uses a fine filter mesh to remove both solid impurities and suspended solids in sewage. The filter grating plays a fine filtration role in the sewage treatment process and improves the purity of the treated water quality.

The application of filter grates is particularly important in wastewater treatment plants that require higher water quality requirements. By using the filter grating, the small particles and suspended matter in the sewage can be further reduced, ensuring that the discharged water is cleaner and reducing the impact on the natural environment.

Four, glass steel chemical grille

FRP chemical grille is a kind of equipment specially used in the chemical industry. Chemical grilles are usually made of corrosion-resistant fiberglass materials, which can operate normally in harsh environments such as strong acids and alkali. The design of the chemical grid enables it to effectively remove solid impurities and organic matter in chemical wastewater and protect environmental safety.

Chemical grille plays an irreplaceable role in chemical wastewater treatment. Chemical wastewater usually contains a lot of organic matter and high concentration of solid waste, which puts forward higher requirements for treatment equipment. FRP chemical grilles can adapt to complex chemical environments, maintain stability, and effectively remove harmful components in sewage.

Conclusion: The application of FRP grilles plays an important role in sewage treatment plants. Coarse grille, fine grille, filter grille and chemical grille respectively for different sewage characteristics and treatment requirements, effectively remove solid waste and harmful components in sewage, improve the purification effect of treated water. The excellent properties of FRP grates, such as corrosion resistance, high strength, and compact structure, make them indispensable equipment in sewage treatment plants. With the continuous progress of science and technology, it is believed that FRP grilles will continue to play an important role in the future sewage treatment field and contribute to urban environmental protection and sustainable development.