14
Operation manual
ACO Clara
This chapter provides information on the checking process and describes
the state in which the plant is in good technical and operating condition.
The troubleshooting is described in the following chapter, Chapter 7.
The procedure for the performance of individual activities is described in
following chapters.
Perform all activities in accordance with the occupational
safety instructions described in Chapter 2.
6.4
Description of individual checks and maintenance work
Visual check of plant
6.4.2 Aeration in activation tank
If properly aerated, air bubbles with a size of ca. 3-10 mm occur in whole
area of water surface in the activation tank. If the activated sludge is in
good condition, no surplus foam is developed. The level of the activation
tank must not be filled up with too great a volume of foam.
6.4.1 Check of blower function
The blower is in continuous operation. For that reason any
breakdown is a fault state.
The blower can be checked simply by a listening test of whether the engi-
ne is producing a sound. Whether the aeration of the activation tank is
occurring can be checked visually.
List of maintenance tasks and checks
Interval
Activity
Description
Chapter
daily
Check of blower function
Engine sound is heard, visual check of aeration of activation tank 6.4.1
weekly
Visual check of plant
Aeration in activation tank
6.4.2
Function of air-lift pumps
6.4.3
Water level of sedimentation tank, inlet pipe
6.4.4
Water level of final sedimentation tank
6.4.5
Quality of treated water
6.4.6
2 weeks
Check of activated sludge
Sedimentation test
6.4.7
monthly
Check of blower filter
As per manual for blower
9
Check of treated water
Sampling; water must be clear and without smell
6.4.8
4 months
Discharging of condensate water from aeration system
6.4.9
Check of lamellas in blower, only AC 30-60 and AC 38-76
As per manual for blower
9
if needed
Removal of surplus sludge
As per result of sedimentation test
6.4.10
Discharge of storage tank
As per sedimentation test
6.4.11
Cleaning of walls of tanks
6.4.12
Cleaning of air-lift pumps
6.4.13
18 months
Replacement of lamellas/membranes
As per manual for blower
9
in blower, no for AC 48-96 and AC 60-120
5-8 years
Replacement of aeration elements
As per visual check of aeration in activation tank
6.4.14
Changing of bearings in blower, no for AC 19-38 and AC 24-48
Authorized company
Any blower breakdown longer than 24 hours
will seriously damage the activated sludge.
Содержание ClarA 19-38
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Страница 29: ...29 Operation manual ACO Clara 3000 h 27 5mm DT 4 25 No 27 5mm 28mm DT 4 40 No 28mm xxxx H E F G ...
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Страница 36: ...36 Operation manual ACO Clara PRESSURE p p VACUUM OFF O 0 OFF A C 1 C 2 B ...
Страница 37: ...37 Operation manual ACO Clara D 75 mm H 170 mm No 909568 No D xxxx H p VACUUM PRESSURE p F D 1 D 2 E ...
