Blowers
HMT blowers provide a reliable and continuous supply of air for aeration processes in wastewater treatment systems. Designed for stable airflow, low noise, and energy-efficient operation, these blowers support consistent biological treatment performance.
Robust construction and precision engineering ensure long service life with minimal vibration and maintenance. Optimized airflow control helps reduce energy costs while maintaining effective oxygen transfer.
HMT blowers are widely used in STP, ETP, MBR, SBR, and MBBR systems. Their reliable performance ensures optimal operating conditions for hollow fiber membrane-based biological treatment processes.
High-Efficiency Blowers for Wastewater Management
Hollowbrane Membrane Technologies (HMT)
In wastewater treatment, particularly for Membrane Bioreactors (MBR) and aerobic digestion, the blower is the "heart" of the system. HMT blowers are engineered to provide consistent airflow for membrane scouring and biological aeration, ensuring optimal dissolved oxygen levels while minimizing energy consumption.
Core Technical Overview
HMT offers three primary blower technologies tailored to specific plant scales and operational requirements:
- Side Channel Blowers: Ideal for small-scale decentralized plants and shallow tanks.
- Rotary Lobe (Roots) Blowers: The industry standard for durability and constant volume at varying pressures.
- High-Speed Turbo Blowers: Designed for large-scale municipal plants seeking maximum energy efficiency and low noise.
Technical Specifications Table
| Feature | Side Channel (SC Series) | Rotary Lobe (RL Series) |
|---|---|---|
| Flow Rate Range | 50 – 2,000 m³/h | 100 – 15,000 m³/h |
| Discharge Pressure | Up to 700 mbar | Up to 1,000 mbar |
| Drive Type | Direct Drive | Belt or Direct Drive |
| Cooling Method | Air Cooled | Air / Water Cooled |
| Noise Level | 65 – 75 dB(A) | 75 – 85 dB(A)* |
| Energy Efficiency | Moderate | Standard |
| Maintenance | Low (Oil-free) | Regular (Oil & Filters) |
Performance & Material Standards
- Housing: High-grade GG20/GG25 Cast Iron for vibration dampening and thermal stability.
- Rotors: Precision-machined tri-lobe or twin-lobe profiles to minimize pulsation and backflow.
- Bearings: Heavy-duty spherical roller bearings with a minimum L10 life of 50,000 hours.
- Sealing: Specialized labyrinth or mechanical seals to prevent oil contamination of the process air (crucial for membrane longevity).
- Motor: IE3/IE4 High-Efficiency motors, IP55 rated, Class F insulation.
Integrated Control Features (HMT Smart-Flow)
To optimize the interaction between the blower and the Hollowbrane membranes, our systems include:
- VFD Integration: Real-time adjustment of airflow based on Dissolved Oxygen (DO) sensor feedback.
- Thermal Protection: PT100 sensors on bearings and discharge ports to prevent overheating.
- Surge Protection: Automated pressure relief valves and bypass loops.
Why it matters: Excessive aeration can damage the microbial flocs, while insufficient aeration leads to membrane fouling. HMT blowers are calibrated to maintain the "sweet spot" of $2.0 - 3.0$ mg/L of DO.
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