CN-121990681-A - Sewage treatment device capable of adjusting liquid inlet distribution

CN121990681ACN 121990681 ACN121990681 ACN 121990681ACN-121990681-A

Abstract

The invention discloses a sewage treatment device capable of adjusting liquid inlet distribution. The anaerobic treatment device comprises an anoxic tank, an aerobic tank and a secondary sedimentation tank which are sequentially communicated, wherein a water inlet distribution channel is arranged on the water inlet side of the anoxic tank, one end of the water inlet distribution channel is communicated with the anoxic tank through a water inlet hole, the other end of the water inlet distribution channel is communicated with the aerobic tank through a pipeline, a plurality of groups of baffle tracks are arranged in the water inlet distribution channel along the length direction, a controlled water-proof baffle is arranged in each group of baffle tracks, the water-proof baffle divides the water inlet distribution channel into a plurality of sub water inlet distribution channels which are not communicated with each other, a water quality detection device is arranged at any end of the water inlet distribution channel, and a control device is used for controlling the opening or closing of each controlled water-proof baffle in the water inlet distribution channel according to the result of the water quality detection device so as to control the water inlet proportion entering the anoxic tank and the aerobic tank.

Inventors

SHI XIAOXUE
CHENG YUJIE
WANG JIANFEI
XU PENGFEI

Assignees

中冶华天南京工程技术有限公司
中冶华天工程技术有限公司

Dates

Publication Date: 20260508
Application Date: 20260331

Claims (3)

1. The sewage treatment device capable of adjusting liquid inlet distribution is characterized by comprising an anoxic tank, an aerobic tank and a secondary sedimentation tank which are sequentially communicated; a water inlet distribution channel is arranged on the water inlet side of the anoxic tank; One end of the water inlet distribution channel is communicated with the anoxic tank through a water hole communicated with the anoxic tank; A plurality of groups of baffle tracks are arranged in the water inlet distribution channel along the length direction, and a controlled water-proof baffle is arranged corresponding to each group of baffle tracks, and separates the water inlet distribution channel into a plurality of sub water inlet distribution channels which are not communicated with each other; a water quality detection device is arranged at any end of the water inlet distribution channel; And the control device is used for controlling the opening or closing of each controlled water isolation baffle in the water inlet distribution channel according to the result of the water quality detection device so as to control the water inlet proportion of the anoxic tank and the aerobic tank.
2. The sewage treatment apparatus with adjustable feed liquor distribution as claimed in claim 1, wherein a nitrifying liquor distribution channel is arranged at the end of the aerobic tank; One end of the nitrifying liquid distribution channel is communicated with the anoxic tank through a pipeline, and the other end of the nitrifying liquid distribution channel is communicated with the secondary sedimentation tank through a pipeline; A plurality of groups of baffle tracks are arranged in the nitrifying liquid distribution channel along the length direction, and a controlled water-proof baffle is arranged in each group of baffle tracks and divides the nitrifying liquid distribution channel into a plurality of sub nitrifying liquid distribution channels which are not communicated with each other; A nitrifying liquid detection device is arranged at any one end of the nitrifying liquid distribution channel; the control device is used for controlling the opening or closing of each controlled water-proof baffle in the nitrifying liquid distribution channel according to the result of the nitrifying liquid detection device so as to control the proportion of nitrifying liquid entering the anoxic tank and the secondary sedimentation tank.
3. The sewage treatment apparatus with adjustable liquid inlet distribution as set forth in claim 1, wherein a water outlet distribution channel is provided on the water outlet side of the secondary sedimentation tank; one end of the water outlet distribution channel is distributed to the anoxic tank through a water outlet return pipe, and the other end of the water outlet distribution channel is connected with the next treatment unit through a pipeline.

Description

Sewage treatment device capable of adjusting liquid inlet distribution Technical Field The invention relates to a sewage treatment device capable of adjusting liquid inlet distribution. Background In the current biological pool in actual operation, the concentration of COD, ammonia nitrogen, total nitrogen and the like in the inflow water is not constant, and the inflow water quantity also has partial fluctuation, so that a certain risk is caused for the actual operation of yielding water reaching standards, in the actual design, the design parameters are well defined, the change of the quality and the quantity of the inflow water is difficult to be dealt with, and the optimal configuration of the carbon nitrogen ratio in the inflow water is a difficult problem in operation. In actual operation, the sewage treatment effect has certain deviation, the conversion rate of ammonia nitrogen into nitrate nitrogen in an aerobic tank is also influenced by external factors such as temperature, carbon nitrogen ratio, dissolved oxygen and the like, the total nitrogen removal has a certain relationship with the reflux amount of nitrifying liquid, and how to flexibly configure nitrifying liquid reflux is the key of the total nitrogen removal effect. Finally, the denitrifying bacteria in the anoxic tank are autotrophic, high-concentration COD is not needed, the strain in the aerobic tank is heterotrophic, and COD with a certain concentration is needed, but the anoxic tank is at the front end, the COD concentration is higher, and the denitrifying bacteria are inhibited to a certain extent, so that how to allocate the COD concentrations in the anoxic tank and the aerobic tank is important in actual operation, and the removal effect of total nitrogen and COD is related. In actual operation, the water inlet concentration, the water inlet quantity and the nitrifying liquid reflux quantity are designed clearly, so that the water inlet concentration, the nitrifying liquid reflux quantity are difficult to change and the change of the water quality and the water quantity in actual operation is difficult to deal with, and therefore the problems of flexible configuration of the water inlet and the nitrifying liquid reflux quantity of an anoxic tank and an aerobic tank in a biological tank according to the actual operation condition and the like are needed to be solved. Disclosure of Invention In order to overcome the above-mentioned drawbacks, an object of the present invention is to provide a sewage treatment apparatus with adjustable liquid distribution. In order to achieve the purpose, the sewage treatment device with adjustable liquid inlet distribution comprises an anoxic tank, an aerobic tank and a secondary sedimentation tank which are sequentially communicated; a water inlet distribution channel is arranged on the water inlet side of the anoxic tank; One end of the water inlet distribution channel is communicated with the anoxic tank through a water hole communicated with the anoxic tank; a plurality of groups of baffle tracks are arranged in the water inlet distribution channel along the length direction, and each group of baffle tracks is internally provided with a controlled water-proof baffle which divides the water inlet distribution channel into a plurality of sub water inlet distribution channels which are not communicated with each other; a water quality detection device is arranged at any end of the water inlet distribution channel; And the control device is used for controlling the opening or closing of each controlled water isolation baffle in the water inlet distribution channel according to the result of the water quality detection device so as to control the water inlet proportion of the anoxic tank and the aerobic tank. Further, a nitrifying liquid distribution channel is arranged at the tail end of the aerobic tank; One end of the nitrifying liquid distribution channel is communicated with the anoxic tank through a pipeline, and the other end of the reflux liquid is communicated with the secondary sedimentation tank through a pipeline; a plurality of groups of baffle tracks are arranged in the nitrifying liquid distribution channel along the length direction, each baffle track is internally provided with a controlled water-proof baffle, and the water-proof baffle separates the reflux liquid into a plurality of sub nitrifying liquid distribution channels which are not communicated with each other; A nitrifying liquid detection device is arranged at any one end of the nitrifying liquid distribution channel; And the control device is used for controlling the opening or closing of each controlled water-proof baffle in the nitrifying liquid distribution channel according to the result of the reflux liquid detection device so as to control the proportion of the reflux liquid entering the anoxic tank and the secondary sedimentation tank. Further, a water outlet distribution channel is arranged on the water outlet si