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  • January 09, 2026

Gardner Denver Elmo Rietschle 2BH1 Series Side Channel Blowers: Environmental Industry Applications

Gardner Denver Elmo Rietschle 2BH1 series side channel blowers are widely used in environmental protection scenarios such as sewage treatment, landfill leachate treatment, industrial wastewater DAF (Dissolved Air Flotation), waste gas treatment, and dust control. Their advantages include oil-free compression, high differential pressure, and long-term durability.

Typical Application Cases

1. Aeration for Medium-Sized Integrated Sewage Treatment

  • Case: A community’s 1500 tons/day integrated sewage treatment project used the 2BH1300 (2.2kW) for the aeration system.

  • Results: Stable continuous aeration, COD removal rate >85%, 27% energy saving compared to traditional blowers, and maintenance interval extended to 8,000 hours.

2. Landfill Leachate Treatment & Gas Supply

  • Case: A waste transfer station leachate system adopted the 2BH1400 for biochemical tank aeration and DAF units.

  • Results: High resistance to humidity and corrosion. The oil-free design prevents secondary pollution. COD dropped from 50,000mg/L to under 300mg/L.

3. Industrial Wastewater Pre-treatment (DAF)

  • Case: An electroplating plant’s DAF system was equipped with a 2BH1500 blower to provide high-pressure air.

  • Results: Efficient separation of heavy metals and suspended solids. Flotation efficiency increased by 30% while energy consumption dropped by 15%.

4. Desulfurization and Denitrification (Waste Gas Treatment)

  • Case: A small thermal power plant used the 2BH1600 to replace traditional Roots blowers for transporting reaction gases.

  • Results: Compatible with VFD frequency control, saving 872,000 kWh annually. Desulfurization efficiency reached 95% with noise reduced by 10dB(A).

5. Dust Collection and Gas Circulation

  • Case: A cement plant dust collection system utilized 2BH1 series blowers for gas circulation and dust pneumatic conveying.

  • Results: High differential pressure significantly improved the dust capture rate. The oil-free compression design eliminated secondary pollution. System efficiency increased by 30%, and energy consumption was reduced by 15%.

Selection Guide Tables

Application ScenarioRecommended ModelCore Advantages
Small/Medium Sewage Treatment2BH1300 / 1400Moderate power, high energy efficiency, suitable for 24/7 operation.
High-load Leachate / DAF2BH1500 / 1600High differential pressure, corrosion resistance, oil-free design.
Waste Gas / Dust TreatmentFull Series CompatibleVFD adjustable, low noise, easy maintenance.

Selection Tips:

  1. Scale Matching: Choose 2BH1300 for small projects; 2BH1600 or above for large scales.

  2. Frequency Control: Prioritize VFD models to adjust speed based on load and save energy.

  3. Corrosion Protection: For harsh environments, opt for stainless steel or ceramic coating.


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