What are the guidelines for using a compressor in the pump discharge of a lift station?
More information with specs on compressed air to reduce H2S
- Example is Xylem MCD 250 which provides an airflow of 11.5 m3/h under 2.4 bar of pressure.
In practice and based on different tests, XYLEM delivers the following treatment rates:
- 100 liters of air per m3 of pipe per hour and with D < 150 mm
- 150 liters of air per m3 of pipe per hour for D >150 mm and max D = 250 to 300 mm.
- !!! Beyond 250-300 mm, efficiency of compressor is unreliable.
Compressor discharge pressure must be at least 0.5 bar greater than the pumps’ average TDH.
To avoid accelerated wear and tear, compressor should not be used for more than 15 min/h; this is a crucial parameter.
Given your 3000 meter-long discharge, I doubt that compressed air will be an adequate solution. It might be better to look at reactive agent using commercial-grade ThioBox by KLEARIOS which enables you to limit the amount used.