The invention provides a low-carbon deep
denitrification treatment process for high-
ammonia-
nitrogen wastewater, and relates to the field of
wastewater treatment. The treatment process comprises the following steps that high-
ammonia-
nitrogen wastewater serves as wastewater to be treated, an
airlift reflux integrated
sewage treatment device is selected, the device comprises an
aerobic reaction chamber and an
anaerobic reaction chamber, the
aerobic reaction chamber is an
ammonia oxidizing
bacteria area, the
anaerobic reaction chamber is an anaerobic
ammonia oxidizing bacteria area,
ammonia oxidizing bacteria and anaerobic
ammonia oxidizing bacteria are subjected to partitioned culture, and the ammonia oxidizing
bacteria and the anaerobic ammonia oxidizing
bacteria are separated; inoculating strain
sludge, and treating the anaerobic ammonia oxidation granular
sludge with an external
electric field, wherein the intensity of the
electric field is 50-100V / m; the carbon-
nitrogen ratio is controlled to be 1: (2-3); the initial
hydraulic retention time is 90-120 min, the water
inlet flow is 6-10 m < 3 > / h, and the
reflux ratio is controlled to be 190%-210%; after one week of operation, the
hydraulic retention time is adjusted to be 30-60 min, the water
inlet flow is 5-8 m < 3 > / h, and the
reflux ratio is controlled to be 250%-300%. The high-ammonia-nitrogen
animal husbandry wastewater is treated by adopting the process disclosed by the invention, the removal rate is high, green low-carbon treatment is realized, a high-ammonia-nitrogen wastewater cooperative
treatment system is constructed, and the limitation of a traditional
nitrification and
denitrification nitrogen removal technology is broken through.