Multi-membrane combined double-circulation bioreactor and multi-membrane combined double-circulation biological treatment system

• Main Authors: WU LIXIANG, WANG XIAOFEI, YUAN CHAO, ZHANG WANWEN, YANG FANGXIAN, HUANG ZEDA, LIANG JIANCHENG, TU FANGXIANG
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The utility model provides a multi-membrane combined double-circulation bioreactor and a multi-membrane combined double-circulation biological treatment system, and belongs to the technical field of wastewater treatment. The multi-membrane combined double-circulation bioreactor provided by the utility model is reasonable in structural arrangement and can realize double internal circulation, and when the multi-membrane combined double-circulation biological treatment system based on the multi-membrane combined double-circulation bioreactor is used for treating low-carbon-nitrogen-ratio organic wastewater, a carbon source and a phosphorus removal agent are not added, and an advanced treatment unit is not added; meanwhile, under the conditions of low energy consumption and low residual sludge yield, stable and efficient nitrogen and phosphorus removal effects can be realized; in addition, the suspended sludge amount and transmembrane pressure difference in the treatment process can be reduced, the reduction of m