General • Inspections

Oily Water Separator Maintenance

This procedure outlines the quarterly maintenance steps for the Oily Water Separator, including start-up, inspection, cleaning, operational checks, and troubleshooting. It ensures the equipment is maintained according to guidelines, focusing on the separator's specific parts and operations.

Foothills RNG Facility

04/11/2025

Oily Water Separator Maintenance

Inspection and Maintenance

Check Rotary Pipe Oil Skimmer for proper operation and adjust as required.

Pass
Flag
Fail

Check sludge accumulation in bottom of VTC tank and drain sludge ports as required.

Check effluent quality for any decrease indicating coalescing tubes need cleaning.

Pass
Flag
Fail

Inspect inlet chamber periodically for sludge accumulation and remove as required.

Check sediment buildup in the separation chamber and remove when 3 to 4 inch accumulation is reached.

Ensure Delta-Tubes are not floating and are properly secured.

Pass
Flag
Fail

Adjust Weir Plate to maintain proper water level and oil skimming rates.

Yes
No
N / A

Cleaning Delta-Tubes

Remove grating and take out Delta-Tubes for cleaning.

Steam clean or pressure wash Delta-Tubes using biodegradable cleaning detergents.

Yes
No
N / A

Inspect Delta-Tubes for degradation and replace modules as required.

Pass
Flag
Fail

Start-Up Procedure

Ensure effluent chamber is filled to the top of the effluent weir.

Prime all separator chambers with clean water before introducing waste stream.

Ensure effluent chamber is filled to the top of the effluent weir.

Yes
No
N / A

Source: Foothills RNG Facility (Community Member)