Waste Water Treatment Plant (WTP).
Waste water treatment will help you to get pure water from waste water. These types of plants can be used home, office purpose and business places. This is very good idea that waste water can be refined and it can be reusable. If you think for our earth it is the best way to help to me and us.
# Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface. The settled and floating materials are removed and the remaining liquid may be discharged or subjected to secondary treatment.
# Secondary treatment removes dissolved and suspended biological matter. Secondary treatment is typically performed by indigenous, water-borne micro-organisms in a managed habitat. Secondary treatment may require a separation process to remove the micro-organisms from the treated water prior to discharge or tertiary treatment.