Industrial spray application guide
Aeration and Air-Stripping Spray Nozzles
Air stripping spray nozzles create gas–liquid contact for aeration and transfer of volatile compounds within a designed treatment system. Spray nozzles can increase liquid surface area in aeration or air-stripping equipment. In contaminant removal, volatile compounds move from water to an air stream; the resulting off-gas may require collection and treatment.
Engineering focus
What the spray system must accomplish
Transfer depends on contaminant properties, temperature, gas/liquid ratio and available interfacial area. Scaling, solids, drift and off-gas compliance must be addressed in the system design.
Inputs required before selection
- Treatment objective and target compounds
- Water flow, temperature and chemistry
- Airflow, vessel geometry and contact arrangement
- Off-gas treatment, scaling and maintenance plan
- Connection, installation space and maintenance access
- Required documentation, test method and acceptance criteria
Comparison
Practical nozzle starting points
| Nozzle approach | Useful starting condition | What to verify |
|---|---|---|
| Full-cone spray | Broad liquid distribution in open contact zones | Review droplet fall, drift and collection |
| Hollow-cone spray | High interfacial area with lower central density | Check wall wetting and gas interaction |
| Packed-column distributor | Uniform liquid loading over packing | Confirm distribution and fouling resistance |
Review method
How to move from requirement to a defensible selection
- Define the process envelope. Record normal, minimum, maximum and upset conditions rather than one nominal point.
- Choose the spray function. State whether the job is coverage, impact, atomization, evaporation, gas–liquid contact, washing or cooling.
- Check distribution in the real geometry. Review spacing, overlap, obstructions, wall contact, drainage and access.
- Validate materials and maintenance. Consider corrosion, erosion, solids, filtration, cleaning and replacement intervals.
- Set an acceptance test. Use an observable measure such as coverage, flow, temperature profile, pressure, droplet data or process result.
Related applications
Technical references
These sources define process or system context. Product suitability still requires project-specific engineering review.
- U.S. EPA — A Citizen’s Guide to Air Stripping
- U.S. EPA — Engineering Bulletin: Air Stripping of Aqueous Solutions
Last technical review: 31 July 2026
RFQ checklist
Send the operating data, not just a nozzle name
Include the application, fluid, flow, pressure, temperature, spray distance, connection, material preference, drawings and acceptance criteria.
Air-Stripping Nozzle Selection Check
For air stripping spray nozzles, confirm liquid flow, available pressure, basin or tower geometry, gas rate, water chemistry and the required mass-transfer duty. Air stripping spray nozzles must be assessed with off-gas handling, drainage, fouling risk, materials and the complete treatment-system design.