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A nitrogen-removing microbial nest based on basalt fiber filler and its cultivation method

A basalt fiber and microorganism technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem of limited anoxic and anaerobic environment, complicated operation process, easy blockage of separation membrane, etc. problem, to achieve the effect of rich flora, large effective specific surface area and low cost

Active Publication Date: 2019-08-27
江苏艾特克环境工程设计研究院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The separation membrane of the former is easy to block and difficult to clean; the mixed aeration method in the reactor of the latter has a huge impact on the granular sludge, and the anoxic and anaerobic environment formed is limited, the denitrification efficiency is low, and the actual operation process is complicated and difficult to scale up

Method used

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  • A nitrogen-removing microbial nest based on basalt fiber filler and its cultivation method
  • A nitrogen-removing microbial nest based on basalt fiber filler and its cultivation method
  • A nitrogen-removing microbial nest based on basalt fiber filler and its cultivation method

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Effect test

Embodiment 1

[0029] Embodiment 1: as figure 1 , 2 A kind of denitrification microbial nest based on basalt fiber filler shown in and 3, described denitrification microbial nest is a multilayer spherical or spherical structure, and described denitrification microbial nest includes anaerobic layer, Anoxic layer and aerobic layer, etc., the denitrification microbial nest is attached to basalt fiber filler, the anaerobic layer is composed of activated sludge with anaerobic bacteria attached, and the anoxic layer is composed of The aerobic layer is composed of activated sludge with aerobic bacteria.

[0030] The outer surface of the microbial nest is an aerobic layer, which mainly enriches a large number of nitrifying bacteria for nitrification, and presents a khaki-yellow film layer for aerobic reactions; the middle layer transitioning inward is an anoxic layer, which mainly enriches a large number of denitrifying bacteria for nitrification. Denitrification, which appears as a black or dark ...

Embodiment 2

[0031] Embodiment 2: as Figure 4 As shown, the cultivation reactor of the denitrification microbial nest based on the basalt fiber filler provided by the present invention, the reactor is intermittent operation or continuous flow operation, the bottom of the reactor 1 is provided with a waste water inlet 4, and the reactor The middle part of the reactor 1 is provided with an intermittent operation water outlet 5, the upper right part of the reactor 1 is provided with a continuous flow mixed liquid outlet 6, and the top of the reactor 1 is provided with a plurality of evenly distributed hanging hooks, and the hanging hooks are vertically A basalt fiber filler 2 is suspended, and the basalt fiber filler 2 is a strip structure, and a plurality of basalt fiber bundles are evenly distributed on the basalt filler 2, and the bottom of the reactor 1 is provided with an aerator 3, and the aerator 3 3 is arranged in the gap between two adjacent basalt fiber fillers 2 .

[0032] The bi...

Embodiment 3

[0033] Embodiment 3: as Figure 4 As shown, the basalt fiber bundle of the present invention is composed of multiple basalt fiber monofilaments, the diameter of the basalt fiber monofilament is 7-21 μm, the diameter of the basalt fiber bundle is 10-40 cm, and the adjacent The interval between two basalt fiber bundles is 20-40cm.

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Abstract

The invention discloses a denitriding microbial nest based on basalt fiber filling materials and a culture method thereof. The denitriding microbial nest is attached onto a basalt fiber beam, and sequentially comprises an aerobic layer, an anoxic layer, an anaerobic layer and the like from outside to inside. Through the combination of the basalt fiber filling materials, a bioreactor and an aerator, the sewage is treated; the air and active sludge realize the strong mixing through the aerator; an ascending flow is generated; circulation flows are formed at the two sides of the basalt fiber filling materials; under the hydraulic effect, the basalt fiber beam performs coating and support on the active sludge attached onto the surface of the fiber beam; under the layered coverage of the basalt fiber on the active sludge, the spherical or spheroid active sludge microorganism aggregates, i.e., the denitriding microbial nests are gradually formed. The denitriding microbial nests are subjected to domestication culture; the goal of removing nitrogen in the sewage is achieved.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a denitrification microbial nest based on basalt fiber filler and a cultivation method thereof. Background technique [0002] In the past 20 years, China's economy has developed rapidly, urbanization has advanced rapidly, and the scale of cities has expanded severely. A large amount of substandard industrial wastewater and domestic sewage have been discharged directly into rivers, lakes and seas without treatment, resulting in a large accumulation of nitrogen and phosphorus in them, and the water body is rich. Nutritization is becoming more and more serious, and the water environment problems caused by it are frequent. In April 2015, the new "Water Ten Measures" pointed out that the discharge of nitrogen, phosphorus and other pollutants will be fully controlled. By the end of 2017, the effluent should meet the "Pollutant Discharge Standards for Urban Sewa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F3/34
Inventor 吴智仁吴向阳蔡培杰周向同谢菁
Owner 江苏艾特克环境工程设计研究院有限公司
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