High-efficiency denitriding and dephosphorizing multi-stage AO+SBR (Anoxic/Oxic+ Sequencing Batch Reactor) sewage treating reaction tank and method

• Main Authors: LI WEIBO, ZHAO LEJUN, SHI ZHILI, LI GUOJIN, LI XIA, GUO SHUQIN
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a high-efficiency denitriding and dephosphorizing multi-stage AO+SBR sewage treating reaction tank and a sewage treating method. The reaction tank comprises a comprehensive pipe gallery chamber and a mud-water separating tank, wherein one side of the comprehensive pipe gallery chamber is provided with a first oxic tank, a first anoxic tank, a second oxic tank, a second anoxic tank, a third oxic tank, a third anoxic tank and a first SBR tank; the left side of the first oxic tank is provided with a first anaerobic tank and a first pre-anoxic tank; the other side of the comprehensive pipe gallery chamber is provided with a fourth oxic tank, a fourth anoxic tank, a fifth oxic tank, a fifth anoxic tank, a sixth oxic tank, a sixth anoxic tank and a second SBR tank; the left side of the fourth oxic tank is provided with a second anaerobic tank and a second pre-anoxic tank; the mud-water separating tank is communicated with the third anoxic tank and the sixth anoxic tank; the mud-water separat