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Case Study

ASMia, a specialist in sewage and process fluid handling, faced a challenge: outdated lobe blowers were limiting the efficiency of oxidation processes at their Mortara plant. The solution was a full upgrade to Robuschi’s Robox Screw screw compressors, a move that delivered measurable gains in energy efficiency, process control, and operational simplicity.

The Mortara facility, owned by A.S. Mortara (a publicly held company), treats up to 108,000 tons of hazardous and non-hazardous liquid waste annually—equivalent to the output of 86,000 people. It handles civil wastewater and industrial waste from sectors including chemical, pharmaceutical, and food & beverage. With over 20 European Waste Catalogue codes authorized, the plant requires high adaptability and precision in its operations.

Get the complete technical breakdown and operational insights from ASMia’s deployment of Robox Screw compressors.
Robox Screw for the Treatment of Industrial Waste Case Study

Why Robox Screw Was the Right Fit

1. Process Optimization and Flexibility

Robox Screw compressors replaced legacy Robox Evolution lobe blowers. Each oxidation tank now has a dedicated blower, allowing for individual oxygen control. This shift eliminated inefficiencies from shared air distribution and enabled tighter control over oxidation parameters.

2. Energy Efficiency

Initial monitoring showed a 15–20% reduction in power consumption. This was achieved without compromising performance, thanks to the compressors’ ability to operate at 600 mbar with flow rates between 1,670 and 1,860 m³/h.

3. Noise Reduction

Located near residential areas, the Mortara plant needed quiet operation. Robox Screw units are enclosed in soundproof casings, keeping noise emissions below 70 dBA—meeting local standards and improving working conditions.

4. Maintenance and Lifecycle Cost

Robox Screw compressors offer simplified maintenance and autonomous operation. ASMia reported time and resource savings, and a favorable lifecycle cost (LCC) evaluation based on investment, reliability, and safety.

5. Future-Proofing

With six units installed, ASMia plans to implement ammonia-based air regulation, replacing oxygen monitoring. This will further enhance energy savings and process control.

FAQs

They offer higher pressure capabilities, better control over air distribution, and lower energy consumption due to their screw configuration.