---
title: "Venturi scrubber"
description: "A Venturi scrubber is a high-energy wet scrubber that atomises scrubbing liquid into a high-velocity throat where the liquid droplets intercept and trap fine particulate. The cleaned gas-and-droplet stream then passes to a downstream cyclonic separator that knocks out the wet droplets."
canonical_url: "https://sylio.co/glossary/venturi-scrubber"
last_updated: "2026-06-28T02:29:34.087Z"
---

A **Venturi scrubber** is a high-energy wet scrubber that atomises scrubbing liquid into a high-velocity throat where the liquid droplets intercept and trap fine particulate. The cleaned gas-and-droplet stream then passes to a downstream cyclonic separator that knocks out the wet droplets.

## Applications

- Blast-furnace gas cleaning (after the [dust catcher](/glossary/dust-catcher), before wet ESP)
- Hazardous-waste incinerator off-gas
- Chemical and pharmaceutical process exhaust where sticky aerosols defeat dry collection
- Pulp-and-paper recovery-boiler vent-stack scrubbing

## Sonic-horn relevance

Venturi scrubbers themselves are continuously wetted and rarely benefit from acoustic cleaning. However, the *upstream* dust catcher and the *downstream* sludge handling hoppers do — [sonic horns](/glossary/sonic-horn) at those points prevent the sludge bridging that interrupts scrubber operation.

## Related terms

- [Dust catcher](/glossary/dust-catcher)
- [Wet ESP (WESP)](/glossary/wet-esp)
- [Electrostatic precipitator](/glossary/electrostatic-precipitator)