The invention belongs to the field of treatment and regeneration of urban
sewage, and provides a quick starting method for a technology for simultaneous
denitrification and COD removal under the condition of normal-temperature and low-C / N
sewage. The method comprises the steps as follows: firstly inoculating some mature CANON
sludge, and enabling the CANON
sludge to perform
biofilm culturing on
volcanic rock filtering material, and quickly constructing an aerobiotic AOB and
anammox oriented
microbial system; then reducing the inflowing water
substrate concentration and adjusting the
aeration and
hydraulic retention time, so as to improve the
nitrogen removal load, and realize the high-load stable operation of the CANON technology under the condition of a medium
ammonia nitrogen substrate; finally adding an organic
carbon source into the inflowing water, performing heterotrophy for the growth of
denitrifying bacteria, and controlling the temperature, free
ammonia,
aeration and other conditions, so as to optimize the aerobiotic AOB,
anammox and
denitrifying bacteria coexisted micro-environment, and successfully start an SNAD technology. According to the invention, the difficult problems that a large amount of organic carbon sources are required to be added for biological
denitrification in the long term and the cost is prodigious are solved, and a method is provided for starting of the SNAD technology under the condition of normal-temperature and low-C / N simulated
wastewater.