Installation And Operating Principle - Graf KLARO Easy Notice D'installation

3. Installation and operating principle

The wastewater treatment system operates according to the SBR process. A precise description of the
process can be found in the operating logbook accompanying the switch cabinet of the wastewater treat-
ment system.
The system fundamentally consists of a preliminary cleaning/compensation tank and a SBR basin (four-
tank systems each include two preliminary cleaning/compensation tanks and two SBR basins).
The connection for feeding between the preliminary cleaning/sludge storage tank and the SBR basin
passes through the end faces at the tops of the tanks. The feed lifter is attached directly to the connecting
pipe.
The sludge return is attached to the dome shafts. It passes into the preliminary cleaning/sludge storage
tank on an incline.
Preliminary cleaning/sludge
storage tank
Feed lifter
Figure 1: Two-tank system with mini tank dome, without sampler.
Bottom tank connection
Preliminary cleaning tank
Figure 2: Four-tank system with maxi tank dome, without sampler.
3. Installation and operating principle
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SBR tank
Aerator diffuser
Bottom tank connection
SBR reactor
Clear water
Excess sludge lifter
lifter