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Integrated biological denitrification device and method for treating wastewater by using same

A biological denitrification and waste water technology, applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of many structures and complicated operation, and achieve low energy consumption and simple structure Effect

Active Publication Date: 2014-03-05
杭州仁弘环境科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide an integrated biological denitrification device and its method for treating wastewater, which solves the problems of many structures and complicated operation in the traditional biological denitrification process, and can realize the elimination of the anoxic pool in the traditional biological denitrification process, and the Stirring system and mixed liquid reflux system to realize the new biological treatment technology of simultaneous nitrification and denitrification of nitrogen in wastewater

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  • Integrated biological denitrification device and method for treating wastewater by using same
  • Integrated biological denitrification device and method for treating wastewater by using same
  • Integrated biological denitrification device and method for treating wastewater by using same

Examples

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Embodiment 1

[0025] Embodiment 1 A kind of integrated biological denitrification device

[0026] refer to figure 1, an integrated biological denitrification device, the biological denitrification device includes an aerobic reaction 1, a sedimentation tank 2, a waste water tank 8, an inlet pump 7, a blower 6, a sludge return pump 13 and an aerator 5, the The side of the aerobic reaction tank is respectively provided with a water inlet 3 and a water outlet 4, the bottom of the aerobic reaction tank is provided with a sludge return inlet 12, and the inner bottom of the aerobic reaction tank is provided with an aerator 5; The top of the tank is provided with a drain port 10, and the bottom end of the sedimentation tank is provided with a sludge return outlet 11; the water inlet 3 of the aerobic reaction tank is connected with the waste water tank 8 through the water inlet pump 7, and the water outlet 4 of the aerobic reaction tank is connected through the pipe The road is connected with the s...

Embodiment 2

[0028] The integrated biological denitrification device described in Example 1 is used for wastewater treatment. The suspended filler is a sphere made of polyethylene with a diameter of 50 mm. The diameter of the holes on the surface of the suspended filler is 10 μm to 10 mm. The diameter is 10μm~10mm, and the density of the suspended filler is 0.98g / cm 3 , the dosage of the suspended filler is 4kg / m 3 ; The aerator 5 is a ceramic microporous aerator, the upper half of the sedimentation tank 2 is a square tank, the lower half is an inverted conical tank, and the outlet diameter of the aerobic tank is DN15mm, no need to set a partition . The effective volume of the aerobic reaction tank is 8L, and the effective volume of the sedimentation tank is 2L.

[0029] Wastewater treatment method: First, feed 2-3L of clear water into the aerobic reaction tank, and turn on the blower for aeration, and then inoculate the remaining biological sludge from the urban sewage treatment plant i...

Embodiment 3

[0036] The integrated biological denitrification device described in Example 1 is used for waste water treatment, the effective volume of the aerobic reaction pool is 110L, and the 4 places of the water outlet are provided with a mesh partition 9, and the mesh partition 9 is fixed at the water outlet Located on the inner wall of the aerobic reaction tank, the pore diameter of the partition is 20mm, the suspension filler is made of polyethylene material with a diameter of 150mm, the diameter of the surface hole of the suspension filler is 1μm-20mm, and the diameter of the inner hole of the suspension filler is 10μm ~10mm, the density of the suspended filler is 0.98g / cm 3 , the dosage of the suspended filler is 5.2kg / m 3 ; The aerator 5 is a ceramic microporous aerator, the upper half of the sedimentation tank 2 is a square tank, and the lower part is an inverted conical tank.

[0037] The wastewater treatment method is the same as in Example 2. First, 28-36L of clear water is ...

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Abstract

The invention discloses an integrated biological denitrification device and a method for treating wastewater by using the same. The biological denitrification device comprises an aerobic reaction pond, a settling pond, a wastewater pond, a water inlet pump, a blast blower, a sludge reflux pump and an aerator, wherein suspended fillers are added into the aerobic reaction pond and are spheres or cylinders; holes which run through the surfaces are distributed on the surfaces and interior of the suspended fillers; the holes on the surfaces of the suspended fillers have the diameter of 1 micron to 20 mm; the holes in the suspended fillers have the diameter of 10 microns to 10 mm. The suspended fillers are filled, so that nitration and denitrification can be finished in the same aerobic reaction pond, an anaerobic pond, a stirrer in the anaerobic pond and an aerobic pond mixed liquid reflux pump system in the traditional A / O biological denitrification process are omitted, and the biological denitrification device has the advantages of simple structure, low energy consumption and the like. By virtue of the method for treating wastewater by using the biological denitrification device, the denitrification efficiency of about 75 percent can be obtained in the aerobic reaction pond.

Description

(1) Technical field [0001] The invention relates to a wastewater treatment device and a treatment method, in particular to an integrated biological denitrification device and a method for treating wastewater, which can remove various pollutants such as organic matter, organic nitrogen, ammonia nitrogen, and nitrate nitrogen, and are suitable for treating Industrial wastewater, urban sewage. (2) Background technology [0002] The traditional biological denitrification method mainly consists of nitrification reaction (the end product of nitrogen oxidation is nitrate) and denitrification reaction (the end product of nitrogen reduction is nitrogen gas). Nitrification requires oxygen and is an aerobic process; denitrification does not require oxygen and is an anoxic process. Therefore, generally speaking, the biological denitrification process is a biological denitrification technology that separates the nitrification reaction and the denitrification reaction in terms of time (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/00
Inventor 吴成强陈效张攀姚小波傅丹婷徐孟孟
Owner 杭州仁弘环境科技有限公司
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