Patent ID: 11919790
Assignee: SHANDONG JIANZHU UNIVERSITY
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. An anaerobic-anoxic/oxic-self-carbon source adaptive reactor (anaerobic-AO-SACR) combined advanced nitrogen removal system for high ammonia-nitrogen wastewater comprising:
an adjusting pool, an anaerobic reactor, an AO reactor, a sedimentation pool, an intermediate pool and a SACR which are communicated in sequence through pipelines;
an outlet of the adjusting pool is communicated with an inlet of the intermediate pool through a pipeline, and the pipeline is provided with a water pump for adjusting the flow;
the AO reactor is divided into an anoxic zone and an aerobic zone, and is provided with a nitrification liquid reflux pump for a part of nitrification liquid obtained by separation of sludge and water in the sedimentation pool to return to the anoxic zone and a sludge reflux pump for a part of sludge obtained by separation of sludge and water in the sedimentation pool to return to the anoxic zone;
the intermediate pool is provided with a water quality testing device;
the SACR is provided with a pH tester, a DO tester, an ORP tester, an aerator and an agitator;
the SACR is configured to:
after wastewater entering the SACR from the intermediate pool, the wastewater first undergoes anoxic agitation, when a pH value of the wastewater changes from increasing to decreasing, a pre-denitrification of the wastewater in the SACR is over;
after T hours, agitation is stopped, and aerated nitrification is started; when a pH value of the pre-denitrificated wastewater in the SACR changes from decreasing to increasing, and DO increasing, a nitrification of the pre-denitrificated wastewater in the SACR is over;
at this time, aeration is closed, agitation is continued, endogenous denitrification is started, and a change of ORP in the SACR is observed; when the ORP in the SACR decreasing, the denitrification of the nitrificated wastewater in the SACR is over;
and at this time, agitation is closed, and sedimentation and drainage are carried out;

further comprising a PLC controller, wherein the PLC controller is respectively in communication connection with the water quality testing device, the pH tester, the DO tester, the ORP tester, the aerator and the agitator.