Device for realizing autotrophic nitrogen removal and synchronous phosphorus removal of municipal sewage through light induction

Abstract

The invention discloses a device for realizing autotrophic nitrogen removal and synchronous phosphorus removal of urban sewage through light induction. The device comprises a main reactor, an irradiation unit, a precipitation unit and a controller, the interior of the main reactor is divided into a first reaction zone and a second reaction zone by a baffle, the irradiation unit is connected to the first reaction zone and the second reaction zone, and the second reaction zone is connected with the precipitation unit. The method realizes stable and efficient synchronous nitrogen and phosphorus removal of urban sewage, especially urban sewage with low carbon nitrogen ratio, and is a technology urgently needed in the industry. Partition regulation and cooperation coexistence of aerobic ammonia oxidizing bacteria, anaerobic ammonia oxidizing bacteria and phosphorus-accumulating bacteria are achieved, and the device has the advantages of being simple in technological process, small in occupied area and low in manufacturing cost.

Description

technical field [0001] The invention relates to the field of sewage treatment devices, and more particularly, to a device for realizing autotrophic denitrification and synchronous dephosphorization of urban sewage by light induction. Background technique [0002] Water eutrophication refers to the rapid growth of algae and other plankton due to excessive nitrogen and phosphorus nutrients in the water, and the decrease of dissolved oxygen in the water, which in turn leads to the deterioration of water quality and the death of fish and other aquatic organisms, which seriously affects the environmental ecology. In order to deal with the eutrophication of water bodies, most of the water bodies have carried out sewage treatment, upgrading and transformation. However, the ratio of carbon to nitrogen in urban sewage is generally low, and the content of total nitrogen and total phosphorus in effluent is difficult to reach the standard. In order to meet the emission standards, most ...

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Problems solved by technology

[0005] In order to overcome the existing defects of high dosage of sewage treatment, high cost, and the accumulation of chemicals affecting the ecological system, the technical problem to be solved by the present invention is to propose a light-induced autotrophic denitrification and simultaneous dephosphorization device for urban sewage, which can Use less chemicals to achieve sewage purification treatment, reducing treatment costs

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