Integrated deep nitrogen and phosphorus removal device

Abstract

The invention relates to the field of sewage treatment, and discloses an integrated deep nitrogen and phosphorus removal device. The device mainly comprises a sewage inlet, a fluidization area, a water outlet channel, a dosing area, an air floatation area, a scum collection area, an air floatation device, a water outlet, an emptying port, a backwashing water inlet and a scum discharge port. The integrated device is high in total nitrogen and total phosphorus removal rate, short in retention time, compact in arrangement, small in occupied area, convenient to operate, free of secondary addition of an organic carbon source and suitable for removal of total nitrogen and total phosphorus in advanced sewage treatment.

Description

technical field [0001] The invention belongs to the field of sewage treatment equipment, in particular to deep nitrogen and phosphorus removal equipment. Background technique [0002] The main reason for the formation of water eutrophication is that nitrogen, phosphorus and other elements are discharged into the surface water with slow flow rate and long renewal period, which causes a large number of aquatic organisms such as algae to grow and reproduce, and the rate of organic matter production far exceeds the consumption rate. Accumulation, the process of destroying the balance of aquatic ecology. [0003] In recent years, due to the rapid development of industry and agriculture, nitrogen and phosphorus pollution in my country's natural water bodies has gradually accumulated, and water eutrophication has occurred, especially in lakes and reservoirs. According to the "2020 China Ecological Environment Bulletin" issued by the Ministry of Ecology and Environment, 29% of lake...

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Problems solved by technology

[0005] In view of the above problems, the present invention develops a new type of integrated deep nitrogen and phosphorus removal device, which is difficult to limit the removal of nitrogen and phosphorus in traditional sewage and wastewater treatment and the consumption of chemicals (such as: carbon source and phosphorus removal agent) is too high These two problems have led to the development of an efficient and zero-carbon integrated deep nitrogen and phosphorus removal equipment, which has the advantages of good water discharge effect, small footprint, low operating cost, and high degree of automation.

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