Physicochemical biofilm coupled switchable efficient sewage purification treatment system

• Main Authors: SUN YONGLI, ZHENG XINGCAN, LI JIAJU, SUI KEJIAN, YANG MIN, LI PENGFENG, YAN XIUQIN
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2021
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a physicochemical biofilm coupled switchable efficient sewage purification treatment system. The system is formed by sequentially connecting an adjusting tank, a three-dimensional combined grid, an efficient primary sedimentation tank system, a biological denitrification system and a novel cloth filter, the efficient primary sedimentation tank system comprises an efficientprimary sedimentation tank, a coupling filter tank and an efficient primary sedimentation tank dosing device, the coupling filter tank is coupled to the outer wall of the efficient primary sedimentation tank, the efficient primary sedimentation tank dosing device is communicated with the efficient primary sedimentation tank, the biological denitrification system comprises a suspended filler nitrification tank, a suspended filler denitrification tank and a suspended filler denitrification tank dosing device, the suspended filler nitrification tank is communicated with the suspended filler denitrification tank, and the