The utility model provides a reaction device for treating high-
ammonia-
nitrogen low-carbon-
nitrogen-ratio
wastewater, which relates to the technical field of
denitrification and carbon reduction processes, and is characterized in that
hydrolysis acidification florae are enriched through a
hydrolysis acidifier, so that macromolecular organic matters which are chronic and difficult to degrade in the
wastewater are converted into micromolecular
volatile fatty acids; the biochemical performance of the
wastewater after hydrolytic acidification is obviously improved, an available substrate is provided for subsequent short-
cut denitrification flora, the additional
carbon source adding amount is effectively saved, a filler frame is arranged in the short-
cut denitrification / anaerobic
ammonia oxidation reactor, a filler string is hung on the filler frame and is used for growing an anaerobic
ammonia oxidation
biological membrane, and the anaerobic ammonia oxidation
biological membrane is used for treating the anaerobic ammonia oxidation
biological membrane in the short-
cut denitrification / anaerobic ammonia oxidation reactor. The
anaerobic ammonium oxidation bacteria consume
nitrite generated by the short-cut
denitrifying bacteria to complete denitrification, the
hydrolysis acidifier is communicated with the short-cut denitrification /
anaerobic ammonium oxidation reactor, and the hydrolysis
acidifier provides required volatile
fatty acid for the short-cut denitrification /
anaerobic ammonium oxidation reactor; a short-cut denitrification reaction and an anaerobic ammonia oxidation reaction are performed in the short-cut denitrification / anaerobic ammonia oxidation reactor, so that
nitrate and
ammonia nitrogen are synchronously removed, and finally, low-consumption
nitrogen and carbon removal of the wastewater with high
ammonia nitrogen and low
carbon nitrogen ratio can be realized.