IN GENERAL
BP EUROTREAT FBR is biological device for purification of waste water with submerged carrier of biomass and it is using for purification of sanitary sewerage and industrial waste water.
It consists of three parts:
Device for purification of waste watter is using biofilm technology. Biofilm is complex heterogenic matrix of microbs who is affixed on submerged biomass carriers.
This tipe of biological device is resistant on unequal hidraulic and organic load during day time, week or month and it needs less surface for placement.
Waste watter is comming in to container for reciving whitch is consist from two or tree chambers. First and second chamber is primary precipitation tank and place for keeping extra activated sludge who is generated in process of purification, unless separate tank is not used in this purposse.
Second chamber is buffer tank in whitch is pump for transporting waste water in to bioreactor. In bioreactor are paced submerged biomass carriers with colonies of microorganisms. Biomass carriers are made from polyethylene, resistant on adverse impacts of waste watter and it is not bio degradable, and it have specific surface of 100-300m²/m³.
Form of biomass carrier enable great mixing of reactor content. Microorganisms are converting organic disolved polutants from waste water in to sediment and mineral matters. This process is mainly done by aerobic microorganisms. Oxigen is pumping in to the water by compressors thru membranic aerators who are fixed on bottom of tank below biomass carriers. After treatment waste water is gravitationaly flowing in to the secondary tank. In this container excess of active sludge is separated from layer of purified water. From this container purified water is relising in to recipient and settled sludge is transporting by pump in to tank for sludge or in primary precipitator.
Guaranteed outlet parameters are: BOD5 25mg/l, COD 125mg/l
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