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6. Inspection, maintenance and desludging
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DOKK5110E 15.04.2020
6.3 Half-yearly maintenance
General maintenance (legally required)
Have maintenance performed on the wastewater treatment plant by a specialist company
on a half-yearly basis . The following work is to be performed and recorded in the
operations logbook :
•
Inspection of the operations logbook and determination of regular operation
(target/actual comparison).
•
Function check of the important plant components (mechanical, electrical-technical, other),
checking in particular for the formation of bubbles and the pumping function of the air
lifters
•
Function check of the control unit and the alarm function
•
Maintenance of the compressor
•
Optimisation of the operation parameters on the basis of inspection results from the SBR
and outflow, if necessary in consultation with Premier Tech.
Warning:
Disconnect the wastewater treatment plant from the power supply before you
continue with the measures described below.
•
Check whether the functions of the calmed inlet, aeration devices, and clearwater lifter are
impacted by damaging substances. Substances that are damaging to functions should be
removed each time that maintenance is performed.
•
Check the volume of sludge and have the sludge removed by the operator if necessary.
Information about measuring sludge volume and desludging
see next chapter!
•
General cleaning maintenance, e.g. removal of sediment deposits
•
Inspection of the structural condition of the plant
•
Checking that aeration and deaeration is sufficient
•
Checking the concentration of oxygen in the SBR basin (SBR reactor)
•
Entering the maintenance results in the operations logbook