BIOLOGICAL WASTEWATER CLEANING

The system consists of primary and secondary processing.

For the primary treatment we use a single chamber or a two chamber septic tank.

For the Secondary treatment we use a tank with biological treatment system with active mud.

Description of system operation

Sewage enters the Monothalami or Bipohalamic septic tank.

They are then led by natural flow to the tank with a biological treatment system, which operates with active mud, where with the help of aerobic microorganisms and oxygenation the consumption of the organic load of the wastewater is achieved with the production of active sludge (biomass).

The wastewater is then led naturally into the conical reservoir, a sedimentation section, where due to calm the natural separation of biological sludge and treated water is achieved.

Excess mud must be removed when it forms in the assembly.

The biological sludge returns to the ventilation section of the main tank, while the clean water is led through an overflow system to the disinfection device via a chlorine tablet.

After disinfection the water is led to the final underground device.

SYSTEM MAINTENANCE

The maintenance in the tanks is done with inspection and any emptying every year.