A biological device for treating urban sewage and its treatment method

Abstract

The invention relates to a biological device for treating municipal sewage and a treatment method of the biological device. The biological device comprises a first SBR (Sequencing Batch Reactor), a middle water tank, a second SBR, a restrain reactor and a self-control cabinet, wherein the first SBR, the middle water tank and the second SBR are connected in sequence; the self-control cabinet is electrically connected with the first SBR, the middle water tank, the second SBR and the restrain reactor respectively; municipal sewage is connected with a water inlet pipe of the first SBR through a first water inlet pump. The biological device disclosed by the invention has the advantages that the structure is simple, the design is reasonable, effluent quality reaches the standard, the operation is simple, manual operation errors can be effectively reduced, the time utilization rate is high, the maintenance cost is low, and the like.

Description

technical field [0001] The invention relates to the technical field of sewage biological treatment, in particular to a biological device and a treatment method for treating urban sewage. Stable and guaranteed to meet the sewage discharge standards and other advantages. Background technique [0002] my country has a shortage of water resources and serious water pollution. With the acceleration of industrialization and urbanization, the total amount of wastewater discharge in various regions has also shown a continuous growth trend. However, the traditional sewage treatment technology consumes a lot of energy and is no longer suitable for the current sustainable development needs of energy conservation and environmental protection. . my country's "Urban Sewage Treatment Plant Pollutant Discharge Standard" (DB11 / 890-2012) promulgated in 2012 requires that the effluent water quality of all sewage units should be less than 2.5mg / L for ammonia nitrogen, less than 15mg / L for total ...

AI Technical Summary

Problems solved by technology

The effluent quality of the existing sewage treatment plant does not meet the A-level discharge standard and needs to be upgraded

The existing urban sewage treatment has problems of high energy consumption, poor effluent stability, and some effluent nitrogen and phosphorus cannot meet the standards. Therefore, how to reduce water treatment energy consumption and reduce treatment costs while achieving efficient nitrogen and phosphorus removal is crucial to the realization of future sewage treatment concept plants. Fertilizer factory, energy factory and water source factory have important research significance

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