Waste water treatment method suitable for rural households based on natural methods

摘要

Waste water purificn. method, is suitable for households in rural areas. It includes a first purificn. stage of physical pretreatment. Coarse material carried in the fluid phase is sepd. by a detritus filter. This has two series-connected phyto-mechanical cleaning stages. In the second stage, the settled sewage arising is further purified by physical and biochemical means, using a reed bed system. The waste water then passes to the third stage, which is a sand filter, where further physical and biochemical purificn. takes place.