Biological treatment device of wastewater and cultivation method of aerobic granular sludge

An aerobic granular sludge and granular sludge technology, applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of poor removal effect and affect the sedimentation effect of the secondary sedimentation tank , long reaction time and other problems, to achieve the effect of fast sludge granulation process, easy promotion and application, and good ammonia nitrogen removal effect

Inactive Publication Date: 2015-04-08
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of poor removal effect, long reaction time, large sludge output, high operating cost, large floor area, and the influence of increasing sludge concentration on the sedimentation of the secondary sedimentation tank in the existing conventional biological method for the treatment of high ammonia nitrogen wastewater. effect, and then provide an aerobic biological treatment device for high ammonia nitrogen wastewater and an aerobic granular sludge cultivation method

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  • Biological treatment device of wastewater and cultivation method of aerobic granular sludge

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specific Embodiment approach 1

[0025] Specific Embodiment 1: Combining figure 1 This embodiment is described. This embodiment consists of an upper reaction zone and a lower reaction zone. The lower reaction zone includes a water inlet pipe (1), a lower reaction cylinder (3), a plurality of first valve bodies (4), an aerobic particle pollution Mud (5), multiple first sampling pipes (6), first water outlet (7) and gas distribution device (2) in the lower reaction zone; the lower reaction cylinder (3) consists of the lower cylinder (3-1) and Composed of conical bottom cylinder (3-2), the lower cylinder body (3-1) is connected to the conical bottom cylinder (3-2) through a flange, and the water inlet pipe (1) is installed on the conical bottom cylinder (3-2) ) and communicated with the conical bottom cylinder (3-2); the granular sludge (5) is arranged in the lower cylinder (3-1), and a plurality of first sampling pipes (6) are along the lower reaction cylinder ( 3) is axially installed on the outer wall of the...

specific Embodiment approach 2

[0027] Specific Embodiment 2: Combining figure 1 The present embodiment will be described. The upper part of the lower reaction cylinder of the present embodiment is drained. With such setting, the granulation of heterotrophic floc sludge can be realized within 10-30 days. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0028] Embodiment 3: Combining figure 1 The present embodiment will be described. The upper part of the lower reaction cylinder of the present embodiment is drained. With such setting, the granulation of the autotrophic floc sludge can be realized within 10-50 days, and then the nitrification granular sludge can be formed. Other compositions and connections are the same as in the first embodiment.

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Abstract

The invention discloses a wastewater treatment device, particularly a biological treatment device of high-ammonia-nitrogen wastewater, which relates to a biological treatment device of wastewater. The invention solves the problems that when high-ammonia-nitrogen wastewater is treated by using existing conventional wastewater treatment processes, the removal effect is not good, the reaction time is long, the sludge production is large, the operation cost is high, the occupied land is large, and the sludge concentration is increased so as to affect the precipitation effect of secondary precipitation. According to the invention, floc sludge is arranged in a lower reaction cylinder, an upper reaction area and a lower reaction area are connected by the cylinder, a mixed stirring device is arranged in the reaction cylinder, the upper reaction area and the lower reaction area are respectively provided with a water outlet pipe, and the upper reaction area and the lower reaction area are connected by a hose. The device disclosed by the invention has the advantages of good ammonia-nitrogen removal effect, low investment and operation costs, small equipment occupied land, simple structure, and the like.

Description

technical field [0001] The invention relates to a wastewater biological treatment device, which belongs to the technical field of wastewater treatment equipment. Background technique [0002] With the continuous improvement of the level of industrialization and people's living standards, human beings have produced a large amount of wastewater containing high concentrations of ammonia nitrogen in production and life. This kind of high-concentration organic wastewater is directly discharged or washed into the water body with rainwater, which will consume a large amount of dissolved oxygen in the water body, making the water body black and smelly. A large amount of nitrogen in water is one of the important reasons for the eutrophication of water bodies. Once eutrophication occurs in the water body, the aquatic organisms in the water body will gradually die, and in severe cases, the water body will lose its use function. [0003] Although there are many treatment methods for h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/12C02F2101/16Y02W10/10
Inventor 闫立龙任源刘玉文艳郝国馨张小雷张英民
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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