7. Operation and maintenance
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7. Operation and maintenance
This wastewater treatment system is a fully aerated system without an anaerobic pre-treatment stage. It is
therefore absolutely essential that the control unit and compressor are not switched off – other than for
maintenance purposes by specialist staff.
Operating instructions 7.1
Basically only substances with the characteristics of domestic wastewater may enter the system.
Biocides, toxic substances or substances which are not biocompatible or biodegradable must not enter
the system because they cause biological process problems. The following are not permitted:
- rainwater from roofs and yards
- infiltration water (e.g. drainage water)
- liquid or solid residue from keeping animals
- commercial or agricultural wastewater, unless it is comparable to domestic wastewater
- chemicals, pharmaceuticals, mineral oils, solvents
- cooling water
- solids in the form of food waste, plastics and hygiene articles, coffee filters, bottle tops and
other domestic items
- milk and milk products
- water discharged from swimming pools
- large volumes of blood
If discharging larger volumes of grease or plant-based oils, we would recommend pre-cleaning the
wastewater containing the greases/oils in a grease separator upstream of the wastewater treatment sys-
tem (caution: faeces must not be allowed to enter the grease separator!).
The table below contains a list of substances which must not be disposed of in the wastewater treatment
system:
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