CARRIER ELEMENT FOR PURIFICATION OF WATER

摘要

It is described a carrier element for microorganisms attached in the form of a biofilm, used for biological treatment of water or wastewater, The carrier element angle (1) is 40 to 80 degrees off of the horizontal line or plane (2) that runs through the open area of the carrier. The height (4) of the carrier element is 7 - 20 mm. The width (5) of the carrier element is 15 - 50 mm. The carrier element has internal partition walls (3) providing a protected biofilm surface area of 400 - 950 m2/m3 of carrier elements, the carrier element has a void volume (pore volume) of at least 75 %, more preferred 80 %, most preferred 85 %; and the carrier element has a density of 0.90 to 1.45.