Wastewater Treatment PM VSD Oil Free Screw Blower

A wastewater treatment blower is a key piece of equipment that provides continuous, stable, and oil-free compressed air for aeration tanks, oxidation ditches, MBR membrane tanks, and more. The SPVC series Wastewater Treatment PM VSD Oil Free Screw Blower adopts twin-screw internal compression technology, delivering pulsation-free, constant-pressure, and 100% oil-free clean air. Compared with roots blowers, it offers more stable pressure, lower noise, and complete oil-free operation, preventing lubricating oil leaks from poisoning activated sludge microorganisms. It is designed for 24/7 continuous operation in wastewater treatment plants, with a pressure range of 0.4-0.8bar perfectly matching the requirements of fine bubble diffusers and membrane aeration systems.

Key Advantages for Wastewater Treatment

100% Oil-Free – Protects Microbial Health.

Dry-type oil-free twin-screw airend with TUV Class 0 certification. Even in the event of an accidental leak, no oil film will enter the aeration tank, preventing microorganism die-off and effluent quality violations.

Low Pressure High Flow – Optimized for Aeration. 

Wastewater treatment aeration commonly uses 0.4-0.8bar, and the SPVC series achieves its highest efficiency in this pressure range. Compared to roots blowers, it can increase air supply by 15-20% under the same power consumption.

30% Energy Saving vs. Roots Blower – Drastically Reduces Electricity Cost. 

Aeration typically accounts for 50-70% of a wastewater treatment plant's electricity bill. The high efficiency of twin-screw internal compression, combined with the IE5 permanent magnet motor, delivers significant power savings at common aeration pressures. Typically, the equipment investment is recovered within 12-24 months.

Ultra-Low Noise – Meets Environmental and Community Requirements. 

Wastewater treatment plants are often located near residential areas. Fully enclosed soundproof cover + custom silencer, noise ≤72dB(A), which is 15-20dB lower than roots blowers, avoiding noise complaints.

24/7 Continuous Operation Capability – High Reliability.

Cooling system designed for 52℃ ambient temperature, copper tube radiator, and independent oil pump forced lubrication. Key bearings are SKF, and the airend design life exceeds 100,000 hours, suitable for year-round uninterrupted operation in wastewater treatment plants.

IoT Smart Monitoring – Optimizes Aeration Control. 

Standard IoT module enables real-time monitoring of blower pressure, flow, power consumption, and running hours via mobile APP. It can automatically adjust speed based on dissolved oxygen (DO) signals, precisely controlling aeration volume and further saving 5-10% energy.

Technical Specifications

Exactly the same as the standard SPVC series. Below is a selection reference for common wastewater treatment applications:

Note: Precise selection based on aeration tank volume, water depth, and number of diffusers is available. Contact sales for a calculation sheet.

Wastewater Treatment Case Studies

A textile industrial park wastewater treatment plant using an oxidation ditch process originally used oil-lubricated fixed-speed screw blowers. Frequent oil leaks caused reduced sludge activity. After replacing with the SPVC-75A oil-free screw blower, the oil contamination problem was completely solved, and VSD control reduced dissolved oxygen fluctuation from ±0.3mg/L to ±0.05mg/L.

Certifications & Quality Assurance

● TUV Class 0 oil-free certification (ensures contamination-free aeration)

● CE certification (essential for export to Europe)

● ISO9001:2015 quality management system

● The factory is equipped with German KAPP grinding machines and CMM. Each blower undergoes an 8-hour simulated aeration test before shipment.

Comparison with Competitors (Wastewater Treatment)

Why choose SEIZE as your supplier for wastewater treatment blowers?

● 15 years of focus on energy-saving air compressors, two invention patents

● Free energy efficiency assessment for aeration systems and DO integration solutions

● Global service network, 24-hour response

● Customization supported (anti-corrosion coating, outdoor enclosures, etc.)

Packaging & Shipping

Moisture-proof wooden case packaging suitable for sea and land transport, with desiccant inside. Export documents include commercial invoice, packing list, certificate of origin, and CE certificate. Standard models ship within 15 days, customized models within 25-30 days.

Client Trust & Brand Endorsement

● Export countries: Germany, Brazil, India, Vietnam, Indonesia, South Africa, etc.

● Typical clients in wastewater treatment: Beijing Enterprises Water, OriginWater, Capital Water, Veolia (China)

● Customer testimonial: “SEIZE’s oil-free blower has been running in our wastewater plant for 18 months, saving over RMB 300,000 in electricity, and is almost maintenance-free. What we appreciate most is the low noise – no more complaints from nearby residents.” – Plant Manager, Jiangsu Wastewater Treatment Plant

FAQ for Wastewater Treatment

Q1：When this blower is used for aeration, will it have any adverse effects on activated sludge?  No. It delivers 100% oil-free air with no oil mist or vapor, and is non-toxic to microorganisms.

Q2：Wastewater treatment plants typically operate 24 hours a day. How long can this blower run continuously? The SPVC series is designed for continuous duty and can run year-round without interruption. We recommend replacing the air filter every 4,000 hours and checking gear oil every 8,000 hours.

Q3：What should be done if a fault occurs during the warranty period? We respond within 4 hours and arrive on-site within 24 hours. We have service networks in major cities across the country.

Customization & Process Flow

For special wastewater treatment needs, we offer the following customizations:

● Anti-corrosion coating (for industrial effluent containing sulfur, acids, or alkalis)

● Outdoor enclosure (IP55/IP65 with rain cover and heater)

● soundproof enclosure (meets residential nighttime noise standards)

Purchase Intent Q&A

Q: Where can I buy a Wastewater Treatment PM VSD Oil Free Screw Blower in China? You can contact SEIZE Compressor (Shanghai) Co., Ltd. directly. We are the original factory. Email: info@seize-air.com.

Q: What is the price for a wastewater treatment screw blower? Price depends on power, pressure, and customization requirements. As a China Manufacturer, we offer competitive factory prices. Please provide your aeration tank parameters for an accurate quotation.

Q: Do you provide installation and commissioning for overseas wastewater projects? Yes, we can dispatch engineers overseas for on-site installation and commissioning (additional cost). Remote video support is also available.