Rotary Drum Screen For Wastewater Treatment
High-Efficiency Mechanical Screening Equipment for Municipal & Industrial Wastewater Pretreatment
The RSM Series Rotary Drum Screen is an advanced mechanical screening system designed to efficiently remove suspended solids, fibers, plastics, organic matter, and other coarse contaminants from municipal and industrial wastewater. As one of the most critical pieces of pretreatment equipment, it helps protect downstream pumps, biological treatment systems, and dewatering equipment while significantly improving overall plant performance.
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Product Introduction
RSM Series Rotary Drum Screen Manufacturer - Improve Wastewater Pretreatment Efficiency with Reliable Solid-Liquid Separation
The RSM Series Rotary Drum Screen is an advanced mechanical screening system designed to efficiently remove suspended solids, fibers, plastics, organic matter, and other coarse contaminants from municipal and industrial wastewater. As one of the most critical pieces of pretreatment equipment, it helps protect downstream pumps, biological treatment systems, and dewatering equipment while significantly improving overall plant performance.
Featuring a continuously rotating drum, automatic spray cleaning system, and fully enclosed stainless steel construction, the RSM Series provides stable, energy-efficient, and low-maintenance operation for 24/7 wastewater treatment facilities.
BioCell designs and manufactures customized rotary drum screens for various treatment capacities, screen apertures, and installation requirements, serving customers worldwide with reliable wastewater screening solutions.
What Is the RSM Series Rotary Drum Screen?
The RSM Series Rotary Drum Screen is a device that continuously and effectively removes suspended solids from water. It is mainly used in wastewater pretreatment or industrial screening processes. In some wastewater treatment applications, filtration can remove 30% to 60% of organic or inorganic suspended solids, significantly reducing the processing load on subsequent stages.
Compared with conventional bar screens, the RSM Series offers:
● Higher solids removal efficiency
● Better protection of downstream equipment
● Reduced maintenance frequency
● Lower operating costs
● Continuous automatic operation
● Compact installation footprint
It is suitable for both new wastewater treatment plants and retrofit projects.
How Does the RSM Rotary Drum Screen Work?
The RSM Series operates through a fully automatic and continuous screening process.
Step 1 – Wastewater Inlet: Wastewater enters the inlet chamber and flows evenly across the rotating drum screen.
Step 2 – Solid-Liquid Separation: Water passes through the precision screen openings while suspended solids, fibers, plastics, leaves, and debris remain on the drum surface.
Step 3 – Drum Rotation: The rotating drum continuously transports captured solids toward the discharge end.
Step 4 – Automatic Screen Cleaning: High-pressure spray nozzles clean the screen surface from the outside, maintaining maximum screening efficiency.
Step 5 – Screenings Discharge: Collected solids are discharged automatically into a container, screw conveyor, or compactor for further handling.
Step 6 – Clean Water Outlet: Screened wastewater flows to downstream biological or physical treatment processes.
Key Features & Benefits
● Compact structure, minimizing space required for the same throughput;
● Drum surface made of wedge-shaped bars for optimal hydraulic characteristics;
● Optional gaps: 0.25, 0.5, 0.75, 1.0, 1.5, 2.5 mm, etc.;
● Built-in water flushing system for continuous or intermittent drum surface cleaning;
● Optional materials: Stainless steel SS304 or SS316L.
Technical Specifications
| Gap (mm) | 0.25 | 0.5 | 0.75 | 1.0 | 1.5 | 2.5 |
Drum Diameter (mm) |
Drum Length (mm) |
Power (kW) |
| Model | Reference Water Flow Rate (m³/h) | ||||||||
| RSM3560 | 13 | 24 | 33 | 41 | 53 | 62 | 350 | 600 | 0.25 |
| RSM610 | 31 | 57 | 78 | 96 | 125 | 146 | 610 | 610 | 0.55 |
| RSM1220 | 66 | 114 | 156 | 193 | 249 | 293 | 610 | 1220 | 0.75 |
| RSM1830 | 94 | 178 | 234 | 288 | 374 | 439 | 610 | 1830 | 0.75 |
| RSM81830 | 151 | 275 | 377 | 463 | 601 | 706 | 800 | 1830 | 1.10 |
Note: Custom specifications are available based on project requirements.
Typical Applications
The RSM Series Rotary Drum Screen is widely used in municipal and industrial wastewater treatment systems.
| Municipal Wastewater Treatment |
● Wastewater treatment plants (WWTP) ● Pumping stations ● Combined sewer overflow systems |
| Food & Beverage Industry |
● Dairy processing ● Breweries ● Beverage manufacturing ● Fruit and vegetable processing ● Seafood processing |
| Paper & Pulp Industry |
● Fiber recovery ● Process water screening ● Paper mill wastewater treatment |
| Textile Industry |
● Dyeing wastewater ● Printing wastewater ● Textile finishing plants |
| Chemical & Pharmaceutical Industry |
● Chemical wastewater pretreatment ● Pharmaceutical process water |
| Slaughterhouses & Meat Processing |
● Blood and tissue removal ● Organic solids separation |
| Aquaculture |
● Fish farms ● Recirculating Aquaculture Systems (RAS) ● Hatcheries |
| Other Industrial Applications |
● Landfill leachate treatment ● Sugar processing ● Palm oil mills ● Starch processing ● Industrial process water recycling |
Optional Configurations
To meet different customer requirements, BioCell provides a wide range of optional configurations:
● SS316 Stainless Steel Construction
● Wedge Wire Drum Screen
● Fine or Coarse Screen Apertures
● Variable Frequency Drive (VFD)
● Explosion-Proof Motor
● Automatic Control Cabinet (PLC + HMI)
● Integrated Screw Conveyor
● Screenings Compactor
● Customized Inlet & Outlet Connections
● Remote Monitoring Interface
Why Choose BioCell?
Your Trusted Wastewater Pretreatment Equipment Partner
BioCell specializes in manufacturing high-performance wastewater treatment equipment for global municipal and industrial customers.
Our Advantages
● Experienced engineering and R&D team
● Advanced CNC manufacturing facilities
● Strict quality control system
● ISO-compliant production process
● Global project experience
● Customized design and engineering
● OEM & ODM manufacturing services
● Fast delivery and responsive after-sales support
We are committed to delivering reliable, energy-efficient, and cost-effective wastewater pretreatment solutions that maximize operational performance and reduce lifecycle costs.
Quality Assurance
Each RSM Series Rotary Drum Screen undergoes comprehensive quality inspections before shipment, including:
● Raw material verification
● Precision machining inspection
● Welding quality inspection
● Drum balance testing
● Motor and gearbox testing
● Spray system testing
● Continuous operation testing
● Factory Acceptance Test (FAT)
This rigorous quality control ensures dependable performance and long-term reliability.
Frequently Asked Questions
Q1: What is a rotary drum screen used for?
A: A rotary drum screen is used in wastewater treatment plants to remove suspended solids, fibers, plastics, organic matter, and other debris before biological or secondary treatment processes.
Q2: How does the RSM Series improve wastewater treatment efficiency?
A: By removing coarse and fine solids at the pretreatment stage, the RSM Series reduces the load on downstream equipment, minimizes pump blockages, protects biological treatment systems, and improves overall treatment efficiency.
Q3: What screen opening sizes are available?
A: BioCell offers screen apertures ranging from 0.25 mm to 10 mm, depending on the application and solids removal requirements.
Q4: What materials are available?
A: The standard material is SS304 stainless steel, while SS316 stainless steel is recommended for corrosive environments such as seawater, chemical plants, and high-chloride wastewater.
Q5: Can the equipment be customized?
A: Yes. We provide customized treatment capacities, drum dimensions, screen types, motor brands, electrical systems, and installation configurations according to your project specifications.
Q6: Does the screen require manual cleaning?
A: No. The RSM Series is equipped with an automatic high-pressure spray cleaning system that continuously removes accumulated solids from the drum surface during operation.
Q7: What maintenance is required?
A: Routine maintenance includes checking the gearbox, bearings, spray nozzles, seals, and electrical components. Thanks to its modular design, maintenance is straightforward and downtime is minimized.
Q8: Can BioCell provide complete wastewater pretreatment systems?
A: Yes. In addition to the RSM Series Rotary Drum Screen, BioCell also supplies:
● MBBR Integrated Wastewater Treatment Systems
● MBBR Bio Media
● Media Retention Screens
● Coarse Bubble Diffusers
● Screw Press Sludge Dewatering Machines
● Shaftless Screw Conveyors
These products can be integrated into a complete wastewater pretreatment solution tailored to your project.
Request A Free Quote Today
Looking for a Reliable Rotary Drum Screen Manufacturer?
Whether you are designing a new wastewater treatment plant or upgrading an existing facility, BioCell's RSM Series Rotary Drum Screen provides dependable solids separation, long service life, and low operating costs for a wide range of municipal and industrial applications.
Our engineering team is ready to help you select the right model based on your flow rate, wastewater characteristics, installation conditions, and treatment goals. Contact BioCell today to receive:
● Free technical consultation
● Customized equipment recommendations
● CAD drawings and layout support
● Competitive factory pricing
● Product catalogs and technical datasheets
● Fast quotation within 24 hours
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