Wastewater first contact with the filter medium, a porous substance that is usually cheap effect an

A trickling filter is a type of biological filter where water flows continuously tubular membranes over a porous surface, such as peat, plastic or rocks, and a thick layer of mud to capture clear biological pollutants. The name is a misnomer, since it is technically no filtering or straining it, but the mud is able to collect and reduce the amount of waste in the water. A trickling filter is generally used before more advanced machine activated forms of wastewater treatment. The three parts are the trickling filter support, the distribution system and the underdrain system, which combine to help purify the water.
Wastewater is constantly produced by a set of human actions, such as using the bathroom or wash the dishes. This water must be purified so that it can return the system to be reused for other water needs.

A biofilter is a process of purification of wastewater first meeting, and it works to produce sludge and trickling water.
Wastewater first contact with the filter medium, a porous substance that is usually cheap effect and has a large specific surface area. If the material is fragile or easily clogged, it will not be used as a filter medium, because the water will be trapped or destroy the surface of the filter. Where the waste water running on this surface, the surface will begin to accumulate sludge of all pollutants. After a while, the mud will be thick enough that it blocks oxygen from entering

the sludge layer. This allows the mud to absorb

additional pollutants.
A distribution system of the second part of the construction of a bacterial bed, but it is the first portion of water encounters. Distribution systems to carry water from different sources for the filter media. An efficient distribution system is capable of distributing uniformly the surface of the wastewater in the medium. This means sprinklers are commonly used, so the water can spray in all directions.
After the water passes tubular membranes through the mud, he met the third part of the trickling filter, the underground drainage system. There are normally two arms of this system. One arm is able to take the water after its passage through the mud, so that it can pass additional processing machines or other methods. The other arm is excess sludge - and all the pollutants it carries with it - which moves the bottom of the filter.