UASB-SMFC coupling device with efficient nitrogen and phosphorus removal effect and use method thereof

• Main Authors: KURITA YUTA, CHEN LIZHENG, LIU HUA, FU SHIXIANG, ZHONG HUAN, DUAN XU, CHEN YULONG, WU QING, ZHANG QING, WANG FANGZHOU, LI JUNBO, ZHANG XUEJIN, LI XIAOYA
• Format: Patent
• Language: Chinese; English
• Published: 20.10.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to a UASB-SMFC coupling device with an efficient nitrogen and phosphorus removal effect and a use method thereof. A barrel of the UASB comprises an anaerobic zone, an anoxic zone and an aerobic zone which are sequentially distributed from bottom to top, and a three-phase separator with a gas phase output communicated with a biogas outlet of the barrel is arranged in the anoxic zone; a cathode and an anode in the SMFC are arranged in the cylinder and form a loop through an external resistor; an aeration device is arranged in the aerobic zone; a light source is arranged at the top of the inner cavity of the barrel; the anode adopts a carbon felt attached with electricity-producing bacteria and is arranged in the anaerobic sediment at the bottom of the cylinder body; the cathode is arranged above the aeration device, and a bacterial-algae symbiotic biological membrane is attached to the surface of the cathode. And the central control system compares the monitored voltage value with a set va