
Trevi's Smart scrubber for Ethylene Oxide
Trevi’s Ethylene Oxide (EtO) water scrubber revolutionizes EtO abatement by replacing sulfuric acid with water as the scrubbing liquid. This game-changing innovation eliminates safety concerns, reduces operational costs, and simplifies waste disposal with non-acidic, biodegradable by-products. The compact design saves space while the smart design prevents any catalyst loss.

High performance
Achieve 99.9999% EtO removal efficiency

Low OPEX
Reduce operational costs by up to 75%

Safety first
No need for hazardous acid storage and disposal

Small footprint
Save space with our compact design

Trevi’s Smart wet scrubber (SwEtO)
Principle
Smart scrubbing transfers EtO from the gas phase to the water liquid phase with a subsequent hydrolysis of EtO into ethylene glycol on a solid catalyst. Water is used instead of sulfuric acid as a scrubbing liquid.
Application
- Waste gases with low to very high
concentrations of EtO. - Waste gases with low to very high gas flows
(>50,000 cfm).

Key Benefits
Flexible / Robust
- Operates at ambient temperature without fuel heating
- Can handle very high EtO concentrations
- Tolerates variable gas flows
- Low risk of instrumentation failure compared to combustion systems
Efficient / Reliable
- No warm-up time — immediate availability
- Automated liquid management in liquid phase (<1 hr changeover)
- <4 hrs/month operating labor
- Option to rework existing acid scrubbers to Trevi’s Smart wet scrubber
Safety
- No need for acid handling, storage and disposal
- IECEx hazardous area compliant



Realisations
Trevi has implemented more than 110 Scrubber systems across the world for sterilization facilities and chemical plants. After extensive research and a successful pilot test, we successfully converted a 3-stage Acid wet scrubber into 3-stage Smart scrubber in Thailand. The scrubber now operates using only water as scrubbing liquid, while maintaining the same high removal efficiency.
Speak to an expert
Fill in the form and one of Trevi’s specialists will contact you to discuss your specific EtO removal needs.
