KESSEL-Kleinkläranlagen INNO-CLEAN® - Kessel Design
KESSEL-Kleinkläranlagen INNO-CLEAN® - Kessel Design
KESSEL-Kleinkläranlagen INNO-CLEAN® - Kessel Design
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2. General<br />
4. Sedimentation phase<br />
The treatment phase is followed by a 2-<br />
hour sedimentation phase. Any solids contained<br />
in the sewage as well as the activated<br />
sludge settle on the bottom of the tank<br />
and a clear water layer thus forms in the<br />
upper area, while a sludge layer made up of<br />
microorganisms forms on the bottom.<br />
5. Extracting the clear water<br />
(clear water extraction)<br />
Clear water now remains above this sludge<br />
layer and is fed via the air syphon for the<br />
clear water extraction into the preclarifier or<br />
infiltration plant.<br />
6. Repumping the activated sludge<br />
(sludge extraction)<br />
Excess activated sludge is pumped back<br />
into the preliminary sedimentation.<br />
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