INTERNAL-CIRCULATION AERATION ANAMMOX-MEMBRANE BIOREACTOR

• Main Authors: PENG, PEIYUAN, CHEN, JING, JUNG, WEONJIN, WANG, YUECHAO
• Format: Patent
• Language: Chinese; English; French
• Published: 19.12.2013
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Disclosed is an internal-circulation aeration Anammox-membrane bioreactor, comprising a continuous stirred-tank anaerobic reactor, a membrane component, and a gas internal circulation device. The anaerobe grows in an even and suspended manner in the continuous stirred-tank anaerobic reactor, and to-be-treated waste water containing high ammonia nitrogen and nitrite enters the continuous stirred-tank anaerobic reactor; the anaerobe is evenly and fully mixed with the pollutants in intake water; the ammonia nitrogen and nitrite in the waste water are removed by the Anammox bacteria and are subject to solid-liquid separation by the membrane component; the anaerobe is held in the reactor, to prevent the anaerobe growing in a suspended manner from flowing out of the continuous stirred-tank anaerobic reactor. In the foregoing treatment process, nitrogen generated during the reaction of the Anammox bacteria is used as an anaerobic gas source; the nitrogen generated in the anaerobic reactor is delivered to a membrane