WehoPuts miniature treatment plant

Wastewater batch accumulation

Wastewater is directed into the storage tank without separate pre-treatment or deposition. From the storage tank, the wastewater is pumped into the process tank. Once the wastewater level in the process tank reaches the start-up level, the purifi cation process starts.

Aerating and chemical feed

The compressor in the machine room aerates the wastewater. Aerating promotes biological decomposition and the oxidation of nitrogen compounds into nitrate. At the end of the aerating phase, a chemical is added into the wastewater. Phosphorus compounds are separated from the wastewater using the chemical.

Nitrogen removal and settling

Aerating is stopped and sludge slowly settles to the bottom of the process tank. The purifi ed, nutrient-free water gathers on top. The nitrate-form nitrogen is reduced to nitrogen gas.

Purified water purging and residue sludge treatment

After settling, the purifi ed water is then discharged. Residue sludge is regularly transferred to the sludge bag. Sludge may be composted with other household waste.

In larger models, surplus sludge accumulates in the treatment plant during the cleaning process and is purged regularly. The treatment plant alerts to the need for purging.