WETLANDS: PRINCIPLE OF PURIFICATION

Private wetlands, municipal wetlands, farm wetlands

Constructed wetlands purify domestic sewage from remote hamlets as reliably as wastewater from smaller municipalities and farming.

The terms “constructed wetland” and “reed bed” are usually used interchangeably. The principle is simple: solids in the wastewater need to be discharged first (septic tank), then the water runs through a soil filter of several granular substrates. On the grains surface microorganisms grow, developing colonies decomposing the organic pollution load. The rhizome of the inserted plants is hollow which keeps the filter permanently open for oxygen. The roots keep the substrate permeable. This all happens beneath the reed bed’s surface. The purifying process is odorless, even in permafrost and extreme hot and dry periods.