ANAFIT.CS is a reliable and very effective method for the cleaning of heavily mineralised wastewater from the industrial production process in the food industry. It is based on the anaerobic contact sludge process and combines three consecutive steps into an effective unit.
In the methane reactor a distribution system of stainless steel lances evenly blows gas into the supplied mixture of mud and water. Without moving parts suffering from wear and tear the mixture is constantly agitated and kept liquid. Here, both the calcium carbonate and the pollutant concentration are removed by precipitation and hence the COD is drastically reduced. At the same time, energy-rich biogas is produced in the methane reactor. This creates positive pressure through which about 90% of the gas is discharged in this step already.
In the subsequent closed degassing stage the mixture of water and sludge settles again. An agitator and a blower remove the remaining 10% of the produced biogas, which is not only an important resource, but would also disrupt the operational processes in the third stage.
The thickener, as the final stage of purification, separates the liquid and solid components of the discharged mixture and feeds the thickened sludge back into the methane reactor as valuable biomass. There it goes through the process again in order to produce more biogas. Once enough sludge has been collected in the methane reactor, excess solids are removed at this point.