STUDY ON PERFORMANCE OF ANAMMOX FLUIDIZED BED REACTOR
ANAMMOX流化床反应器性能的研究

Denitrification with ammonium as direct electron donor is a new biological reaction which can remove ammonium and nitrite simultaneously. The performance of ANAMMOX (anaerobic ammonium oxidation) fluidized bed reactor for treatement of the anaerobic effluent from sludge digestion was studied. The results showed that the inhibitory effect of substrates could be avoided and the energy for aeration and chemical for neutralization could be saved.The average ammonium and nitrite volumetric loading rates were 428.83 and 464.91 mg(N)/(L·d), with maxima of 961.56 and 1125.00mg (N)/ (L·d), respectively. The average removal of ammonium and nitrite were 88.49% and 99.04%. Because of the low yield of ANAMMOX biomass, a long SRT(>100d) was needed. In order to operate the bioreactor properly, the growth condition of ANAMMOX biomass should be further studied.