100–520 m³/h Rotary Screen Filter for Wastewater Treatment

Product introduction of 100–520 m³/h Rotary Screen Filter

The 100–520 m³/h rotary screen filter is a large flow wastewater pretreatment device used for continuous removal of suspended solids in municipal and industrial treatment systems. It is constructed with a compact and reliable mechanical structure and equipped with a rotating drum featuring wedge shaped grid surfaces. The system operates by allowing wastewater to pass through the screen while retaining solid matter, reducing up to 30%–60% of suspended load. It is suitable for small, medium, and large scale wastewater facilities requiring stable hydraulic performance, reduced maintenance demand, and improved efficiency in downstream treatment processes.

Working principle

Wastewater enters the rotary screen filter and is distributed evenly onto a rotating drum equipped with a wedge grid surface. As the drum rotates, water passes through the grid openings while suspended solids are retained on the surface.

The retained solids are continuously removed through gravity and mechanical discharge, ensuring uninterrupted operation. The filtered water flows out for further treatment stages.

This process achieves continuous solid liquid separation, reduces pollutant load, and improves efficiency of downstream biological and advanced treatment systems.

Product Parameter Table

Water inlet pipe	DN250
Water outlet pipe	DN300
Washing pipe	DN25
Treating Capacity by Grid Gap
0.25 mm	100 m³/h
0.5 mm	180 m³/h
0.75 mm	243 m³/h
1.0 mm	306 m³/h
1.5 mm	397 m³/h
2.5 mm	520 m³/h
Diameter of drum	610 mm
Length of drum	1830 mm
Power	0.75 kW

Main Features

• High capacity rotary drum design supports stable operation under large flow wastewater conditions
• Wedge grid drum surface provides excellent hydraulic characteristics and efficient solid liquid separation performance
• Compact mechanical structure reduces installation space requirements in municipal and industrial treatment facilities
• Continuous operation capability allows uninterrupted screening and stable pretreatment performance over long periods
• High reliability design minimizes mechanical failure risk and ensures consistent wastewater processing efficiency
• Effective removal of suspended solids reduces downstream biological treatment load significantly and improves overall efficiency

Application Scenarios

• Municipal wastewater treatment plants for primary screening and load reduction before biological treatment
• Industrial wastewater systems in food, textile, paper, and chemical processing industries
• Large scale sewage treatment facilities requiring stable high flow pretreatment performance
• Surface water intake systems for protecting downstream filtration and treatment equipment
• Combined industrial and municipal wastewater networks requiring continuous solid removal

FAQ

1. What is the main function of this rotary screen filter?
It removes suspended solids from wastewater during pretreatment stages.

2. How much load reduction can it achieve?
It can reduce approximately 30% to 60% of suspended solids load.

3. Is it suitable for large flow applications?
Yes, it is designed for high capacity flow ranging from 100 to 520 m³/h.

4. Does it require complex maintenance?
No, it has a simple structure with high reliability and low maintenance needs.

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