Function

The process: Safe for the environment - safe in use.

Pre-filtration

First, the grey water from showers and bathtubs enters a filter which retains coarser particles such as textile fluff, hairs, etc. The filter is cleaned automatically and the residues are fed into the waste water drain.

2-stage biological treatment

In stage 1, the water is treated under supply of atmospheric oxygen. Micro-organisms adhering to the surface of the carrier material introduced into the tanks of stages 1 and 2 break down the biodegradable content of the water. After several hours, the water is pumped to stage 2, where it undergoes the same treatment for a second time.

Sediment disposal

The sediments generated during the biological treatment are automatically removed and drained into the sewer.

UV disinfection

In the final stage, the water is disinfected by using an UV lamp and stored in the process water tank until its reuse. It can be re-used as high-quality process water according to the hygiene specifications of the EU Bathing Water Directive.
The cleaning process is approved by the German TÜV!

Pressure pump

The pressure pump supplies the recycled water to the consumers (i.e. for toilet flushing) and supports the automatic filter flushing.

The automatic drinking water back-up on demand

If insufficient process water is available, the automatic drinking water back-up fills the storage tank up to a certain level that ensures the supply of the consumers. If the system is combined with a rain water harvesting system, this water would be used first instead of drinking water.