Combined technology of functional antibacterial agent enhancement, non-backflow multistage AO process and ecological consumption

• Main Authors: ZHOU XINCHENG, CHEN DONG, HUANG BIN, MAO LINQIANG, TAO QINFENG, ZHANG WENYI
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2017
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a combined technology of functional bacterial agent enhancement, non-backflow multistage AO process and ecological consumption. The technology is provided in order to solve the problems that concentration of pollutants such as COD (chemical oxygen demand), TP (total phosphorus), TN (total nitrogen), ammonia nitrogen, nitrate nitrogen and the like in wastewater of developed regions in the south is higher than that of urban wastewater, wastewater treated with traditional urban wastewater treatment technologies such as A/O, SBR, BAF and the like cannot meet the national emission standard, and especially, up-to-standard discharge of TN and TP is difficult to realize. A denitrifying phosphorus-accumulating bacterial agent B8 is added to a collecting tank, and capacity of the multistage AO technology for treating rural domestic wastewater is improved, so that the level-A emission standard of discharge standard of pollutants for municipal wastewater treatment plant (GB 18918-2002) is met. The