Carrier for retaining anammox group, anammox group adherent and wastewater treatment apparatus

摘要

Problem to be solved: to provide an anammox group holding carrier, an anammox group attachment, and a wastewater treatment apparatus capable of shortening the start period and improving the rate of nitrogen treatment.Average cell diameter is 700 μ More than μ A plurality of cells 12 which are less than m and a diameter of μ An ammox group of group support carrier 10 having a communication hole 14 communicating the cells 12 and having a porosity of 85% or more to 95% or less.An amoxx group of adherents adhering to the amoxx group for supporting the ammox group is attached to the amoxx group, and the anoxx group adherents are disposed in the waste water treatment tank.Diagram