Endogenous denitrification phosphate-removing/short-distance nitrated part anaerobic ammoxidation biomembrane technology for low C/N ratio city life sewage as well as apparatus thereof

• Main Authors: XU ZAIZHOU, GAO XINJIE, PENG YONGZHEN
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2018
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to an endogenous denitrification phosphate-removing/short-distance nitrated part anaerobic ammoxidation biomembrane technology for low C/N ratio city life sewage as well as an apparatus thereof, which belong to the field of sewage biological treatment. According to the invention, life sewage is introduced into SBR1, and is subjected to anoxic stirring, a carbon source in rawwater is fully used for denitrification, residual NO3<-> and NO2<-> which can be residual at last period are reduced to N2, a superfluous organic matter is absorbed and stored as an inner carbon source, then aeration is carried out, and aerobic phosphor absorption is carried out, a NH4<+>-N-containing supernatant is pumped to SBR2 through a first peristaltic pump, an intermittent-aeration intermittent-stirring mode is used for performing short distance nitration and anaerobic ammoxidation to remove the supernatant residual NH4<+>-N until the residual NH4<+>-N in SBR2 is oxidized to NO2 , then the supernatant in the SB