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 />
2.5 Functional description<br />
The purification process is controlled fully<br />
automatically by the control unit. A purification<br />
cycle lasts approx. 8 hours and is<br />
completed with the discharge of the purified<br />
water. The purification process is<br />
based on microorganisms which purify the<br />
sewage during the treatment phase.<br />
1. Introduction of the black water<br />
(total domestic sewage)<br />
The entire domestic sewage reaches the<br />
preliminary sedimentation chamber. There<br />
the heavy parts sink to the bottom and form<br />
a layer of sludge. The sewage sludge remains<br />
in the preliminary sedimentation<br />
chamber, consolidates and has to be disposed<br />
off on reaching the maximum intake<br />
capacity.<br />
2. Filling the aeration chamber (feeding)<br />
The aeration chamber is filled with the sewage<br />
from the preliminary sedimentation<br />
chamber. A defined sewage volume is led<br />
via the feed syphon from the preliminary<br />
sedimentation chamber into the aeration<br />
chamber.<br />
3. Sewage treatment phase<br />
(normal, economy and holiday phase)<br />
Inside the aeration chamber, the sewage is<br />
vortexed with short aerator blasts (diaphragm<br />
pipe aerator). Thanks to an intermittent<br />
aeration, oxygen gets into the sewage<br />
and microorganisms receive oxygen<br />
for nutrient decomposition. In the process,<br />
activated sludge is generated. The metabolism<br />
of these microorganisms purifies<br />
the sewage.<br />
As a rule, the treatment phase lasts approx.<br />
six hours. Beyond that, the plant regulates<br />
itself according to its feeding rate. The sewage<br />
treatment then proceeds in line with<br />
the “normal phase”, “economy phase” or<br />
“holiday phase”. (see point 6.1)<br />
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