Sludge separator with subsequent infiltration
In an infiltration plant the wastewater cleans the existing soil by flowing through the natural soils and spreading through the ground to the groundwater.that is, the sewage is filtered through the soil layers. In the transition between the dispersion layers (macadam) and the underlying soil layers a biofilm is formed, where a biological reduction of organic matter and contaminants occur before the wastewater reaches groundwater.
Traditional infiltration with sparge and macadam
The most common type of subsequent purification to sludge separators is traditional infiltration, which is built by spreader tubes and macadam
Constructed infiltration with infiltration modules
Works as a regular infiltration facility, but the biological purification occurs in the infiltration module. This option is usually used when it is difficult to get macadam or when the location of the plant makes it impossible to carry heavy masses.
In case of extra purification of phosphorus
When the requirements for reduction of phosphorus are high or when laying a soil bed, the plant must be supplemented with phosphorus precipitation. The precipitate takes place in the sludge separator and is flow controlled. After the precipitation, the wastewater is led to an infiltration or a soil bed for further treatment.