Integrated anaerobic, anoxic and aerobic conversion combined wastewater treatment device

Abstract

The invention provides an integrated anaerobic, anoxic and aerobic conversion combined wastewater treatment device. The integrated anaerobic, anoxic and aerobic conversion combined wastewater treatment device comprises a tank body, wherein the inner part of the tank body is divided into an anaerobic region, an aerobic region and an anoxic region which are mutually separated; the regions are internally provided with an anaerobic water inlet pipe, an aerobic water inlet pipe and an anoxic water inlet pipe respectively; each water inlet pipe is provided with an anaerobic water inlet valve; a filtering layer is arranged at the upper part of each region; overflowing weirs are arranged above the filtering layers; water discharging pipes are arranged at the outer sides of the overflowing weirs; the water discharging pipe of the anaerobic region is communicated with the anaerobic water inlet pipe; an anaerobic and anoxic communicating pipe is connected between the overflowing weir of the anaerobic region and the aerobic region; the water discharging pipe of the aerobic region is communicated with the anaerobic water inlet pipe; an anoxic and aerobic communication pipe is connected betweenthe overflowing weir of the anoxic region and the aerobic region. According to the device provided by the invention, one tank body is internally provided with the anaerobic region, the aerobic regionand the anoxic region; the combination and the combined application of all the regions can realize independent anaerobic, aerobic and anoxic reaction and the combination of various reaction forms, soas to be adaptive to the requirements of different water quality; the water quality of output water is stable.

Description

technical field [0001] The invention relates to a device for anaerobic or anaerobic treatment of wastewater, which belongs to the technical field of wastewater treatment. Background technique [0002] In the prior art, the treatment of wastewater generally adopts anaerobic, anoxic and aerobic reactions. Anaerobic means in a non-oxidized state, the anaerobic reaction is used for phosphorus-releasing bacteria, which can change the biodegradability of sewage. Anoxic refers to the oxidation state lacking oxygen, and the anoxic reaction is used for denitrification and denitrification of nitrate and nitrite. Aerobic means that oxygen is sufficient to be used by aerobic microorganisms, and aerobic reactions are used for nitrification and aerobic activated sludge to remove BOD. Usually, anaerobic, anoxic and aerobic combined reactions are used to purify wastewater. [0003] Anaerobic, anoxic and aerobic reactions to sewage can be combined in the following ways: [0004] 1. The t...

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Problems solved by technology

The anaerobic, anoxic and aerobic process (A2 / O process) mostly adopts the structure of the reaction pool, which occupies a large area and has low treatment efficiency.

[0008] However, at present, there is no equipment that can perform multiple combined treatments on wastewater, so that it can realize any combination of anaerobic treatment, anoxic treatment and aerobic treatment according to the required process, so as to improve the treatment efficiency and effect

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