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ATTENTION!
Never mix acids and alkali!
All pipes and connections must be rinsed well with water after being cleaned with
acid before cleaning with alkali and the other way around!
Follow the warning and safety instructions of the chemicals used!
Protective gloves and glasses are to be used during all cleaning operations!
Initial concentration
solution
Citric acid or Chlorine
Citric acid
Target cleaning
fluid concentration
Mixing ratio
Water / Citric acid
Chlorine
Target cleaning
fluid concentration
Mixing ratio
Water / Chlorine
5%
0,25%
2 l
/ 105 ml
40 l / 2,1 l
160 l / 8,4 l
10%
0,25%
2 l
/ 83 m
40 l / 1,66 l
160 l / 6,64 l
15%
0,25%
2 l / 69 ml
40 l / 1,38 l
160 l / 5,52 l
20%
0,25%
2 l
/ 25 ml
40 l / 0,5 l
160 l / 2,0 l
25%
0,25%
2 l
/20 ml
40 l / 0,4 l
160 l / 1,6 l
30%
1%
2 l
/ 69 ml
40 l / 1,38 l
160 l / 5,52 l
0,25%
2 l
/ 17 ml
40 l / 0,34 l
160 l / 1,36 l
granulate
1%
2 l
/ 20 g
40 l / 400 g
160 l / 1,6 kg
Tab.: Examples for different initial concentration and mixing ratio
11.7 Bio reactor
The bio reactor itself needs no periodic cleaning. The removal of the sludge is done by the sludge pump
(when installed) which is controlled by the AQUALOOP control unit.
However, the bio rector can be checked by sight and by smell.
AQUALOOP works with an aerated moving bed principle. If a strong odor is noticed e.g. like sulfuric
(rotten egg) the aeration process may not be operating correctly or the system may be overloaded and
the biological treatment doesn’t work in the correct manner. Check the aeration and perhaps increase
the aeration setting. (The dissolved oxygen content shall be > 3 mg/litres with a range up to 6 mg/litres.)
The AQUALOOP system treated outflow should be clear like tap water. If the effluent is not clear please
check the tightness of all membrane station connections (chap.9.1).
Should the bio reactor need cleaning the tank sludge will be discharged by the sludge pump – this
process can start manually in the test mode (Chap. 7.2.2, Menu 4).
