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Biological thickening device for reducing pollutants in coal chemical industry wastewater

A technology for coal chemical wastewater and biological enrichment, applied in the field of sewage treatment, can solve problems such as substandard effluent, treatment accidents, etc., and achieve the effect of saving oxygen supply, improving shock load resistance, and small footprint

Active Publication Date: 2013-06-19
哈尔滨工创环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effluent still contains some toxic organic residues, high-concentration ammonia nitrogen and suspended solids. If the aeration tank or biological filter is directly used, the effluent will not meet the standard due to the high pollutant load in the influent, resulting in a treatment accident.

Method used

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  • Biological thickening device for reducing pollutants in coal chemical industry wastewater
  • Biological thickening device for reducing pollutants in coal chemical industry wastewater
  • Biological thickening device for reducing pollutants in coal chemical industry wastewater

Examples

Experimental program
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specific Embodiment approach 1

[0013] Specific implementation mode one: combine Figure 1-Figure 5Explain, a kind of biological enrichment device for reducing coal chemical wastewater pollutants in this embodiment, the biological enrichment device includes at least one pool body 53, submersible sludge pump 24, distribution channel 2, first outlet weir 6, second Two outlet weirs 21, drainage pipes 22, branch pipes 27, aeration branch pipes 50, main aeration pipes 51, backflow defoaming water pumps 28, multiple agitators 17, multiple underwater thrusters 18 and multiple nozzles 52, pool body 53 is added with suspended filler 31, the bottom of the pool body 53 is closed, and the pool body 53 is divided into three areas and seven corridors by multiple partition walls 54; the three areas are anaerobic sedimentation area 1, inclined pipe Sedimentation zone 19 and return sludge zone 23, the seven corridors are the first longitudinal corridor 7, the first transverse corridor 8, the second longitudinal corridor 9, t...

specific Embodiment approach 2

[0016] Specific implementation mode two: combination figure 1 and image 3 Note that the submersible sludge pump 24 in this embodiment is fixed on the front wall in the return sludge area 23; the branch pipe 27 is equipped with a butterfly valve 29 and a check valve 30, and the check valve 30 is located between the return flow defoaming water pump 28 and the drain. Between the pipes 22 , a butterfly valve 29 is located between the backflow defoaming water pump 28 and the other end of the drain pipe 22 . Such setting can realize the effective control of returning sludge and water flow. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0017] Specific implementation mode three: combination figure 1 Note that the number of pool bodies 53 in this embodiment is two, and the two pool bodies 53 are arranged side by side and fixedly connected as one, and the two pool bodies 53 are arranged symmetrically with respect to the center line in the length direction of the two pool bodies. Such setting can improve the wastewater treatment efficiency. Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a biological thickening device for reducing pollutants in wastewater, and concretely relates to a biological thickening device for reducing pollutants in coal chemical industry wastewater to solve a problem that outlet water cannot reach the standard because of partial toxic organic matter residues, high concentration ammonia nitrogen and suspensions in the outlet water processed through present coal chemical industry wastewater processing technologies. The internal of the pool body of the device is divided into three zones and seven galleries by baffle walls; the three zones are an anaerobic precipitation zone, an inclined tube precipitation zone and a backflow sludge zone respectively, the seven galleries are a first longitudinal gallery, a first transverse gallery, a second longitudinal gallery, a second transverse gallery, a third longitudinal gallery, a fourth longitudinal gallery and a fifth longitudinal gallery respectively, an external biological thickening oxidation gallery comprises the first longitudinal gallery, the first transverse gallery, the second longitudinal gallery and the second transverse gallery, an internal biological thickening oxidation gallery comprises the third longitudinal gallery, the fourth longitudinal gallery and the fifth longitudinal gallery, and the biological thickening oxidation gallery comprises the external biological thickening oxidation gallery and the internal biological thickening oxidation gallery. The biological thickening device is used to reduce the pollutants in the coal chemical industry wastewater.

Description

technical field [0001] The invention relates to a biological enrichment device for reducing waste water pollutants, which belongs to the field of sewage treatment. Background technique [0002] At present, the treatment process of coal chemical wastewater at home and abroad is mainly composed of physicochemical and biochemical processes. The coal chemical wastewater after pretreatment is generally further treated by anoxic and aerobic biological treatment process (A / O treatment process) at home and abroad, but the wastewater contains some polycyclic and heterocyclic compounds, and the effluent is still It is difficult to meet emission standards. In order to solve the above problems, some new methods have appeared in recent years, such as membrane biological treatment process, fluidized bed treatment process, anaerobic biological treatment process, advanced oxidation technology treatment process and coagulation, adsorption treatment process, etc. Although there are new meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30
Inventor 韩洪军赵茜徐春艳张凌翰周飞祥
Owner 哈尔滨工创环保科技有限公司
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