The present invention discloses a rapid start-up process for shortcut
nitrification of
wastewater with high
ammonia nitrogen. First, according to the characteristics of shortcut
nitrification of
wastewater with high
ammonia nitrogen, the pH, temperature,
ammonia nitrogen concentration and dissolved
oxygen concentration are adjusted before water inlet to make the inlet load meet the requirements of microbial degradation. Then, strain NZ-AY1 is added, and the rapid start-up process for shortcut
nitrification is carried out under the conditions of high
ammonia nitrogen concentration, 30-33 °C, and pH 7.0-8.5. The strain is classified and named as
Geobacillus inquilinus ([[]] Parageobacillus toebii ) NZ-AY1, which has been deposited in the China General
Microbiological Culture Collection Center. In this process, the
ammonia nitrogen removal efficiency can reach over 95%, the ammonia oxidation efficiency can reach 87% to 95%, and the ability to
resist various shock loads is strong, making it more stable in the
treatment system. At the same time, the
rapid expansion culture process of the strain is also disclosed, which has the advantages of simple operation, short
production cycle and low production cost, has practical application value, and broad market prospects.