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Continuous flow type reactor

A reactor and flow technology, applied in the field of continuous flow reactors, can solve the problems of system blockage, short service life, and the denitrification effect needs to be improved, and achieve the effect of reducing outflow and avoiding floating displacement.

Pending Publication Date: 2022-04-15
武汉江城泽源生态工程技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most natural cellulose materials have low mechanical strength and short service life
Since the plant carrier may block the system after the release period is over, it is generally necessary to set up a separate dosing area for future maintenance and operation. Therefore, if the life of the filler is too short and the mechanical strength is insufficient, the cost and difficulty of operation and maintenance will increase.
In addition, the total nitrogen removal rate of pure cellulose carbon source materials is difficult to reach more than 70% in practical applications, and the nitrogen removal effect needs to be improved.

Method used

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Embodiment 1

[0040] Such as figure 1 As shown, a continuous flow reactor includes: a reaction column 1, the upper and lower ends of the reaction column 1 are respectively provided with a water outlet 110 and a water inlet 120, water is fed from the bottom of the reaction column 1, and water is discharged from the upper part;

[0041] In the reaction column 1, between the water outlet 110 and the water inlet 120, a volcanic rock layer 130, a packing layer 140 and a cobblestone support layer 150 are sequentially arranged from top to bottom. The effect of interception is to avoid the floating and shifting of the filler, reduce the outflow of fiber flocs in the reaction column 1, and at the same time, it will not cause extrusion deformation to the middle filler, and has a certain effect of adsorption and dephosphorization; the filler layer 140 includes: wood fiber element, metal substance, oligosaccharide solution and biological enzyme solution;

[0042] Among them, the role of lignocellulose...

Embodiment 2

[0047] This embodiment is a further optimization carried out on the basis of embodiment 1, which is specifically:

[0048] The mass ratio of lignocellulose, metal substance, oligosaccharide solution and biological enzyme solution is 100:(50-4):(0.1-2.5):(0.005-0.02).

[0049] As a further step, the mass ratio of the biological enzyme solution to the lignocellulose is (0.01-0.1):100.

Embodiment 3

[0051] This embodiment is a further optimization carried out on the basis of embodiment 1 or 2, which is specifically:

[0052] Lignocellulose is the main component of plant cell walls, lignocellulose includes: cellulose, hemicellulose and lignin;

[0053] The mass ratio of cellulose, hemicellulose and lignin is (3-6):(2-5):(1-3);

[0054] Sources of lignocellulose are: wood, bamboo, wheat straw, corn straw, corn cob, bagasse, etc.;

[0055] Among them, wood includes rotten wood, and products or waste produced from raw wood;

[0056] Bamboo is a product or waste processed from raw bamboo;

[0057] Wheat stalks, corn stalks, corn cobs, bagasse, etc. are agricultural wastes;

[0058] The shape of the lignocellulose can be: fine powder, granular, filamentary, massive and other shapes.

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Abstract

The invention relates to a continuous flow type reactor, comprising: a reaction column, the upper and lower ends of which are respectively provided with a water outlet and a water inlet; a volcanic rock layer, a filler layer and a cobblestone supporting layer are sequentially arranged between the water outlet and the water inlet in the reaction column from top to bottom; the filler layer comprises lignocellulose, a metal substance, oligosaccharide and biological enzyme. Lignocellulose is used as a slow-release carbon source and a biofilm formation carrier, and can release organic matters as electron donors for denitrification of denitrifying bacteria under the action of water soaking and microorganisms, so that nitrate nitrogen is reduced into nitrogen, and sewage denitrification is realized; the metal substance reduces the oxidation-reduction potential of the water body, creates a reduction environment which is more beneficial to the survival of denitrifying bacteria, stimulates the evolution of microorganisms to increase the diversity of the microorganisms, strengthens the aggregation of the microorganisms to increase the biomass, and improves the biodegradability; the continuous flow type reactor is mainly used for efficient nitrogen removal of domestic sewage, river and lake water bodies, aquaculture wastewater and the like, and has a certain phosphorus removal function.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a continuous flow reactor. Background technique [0002] Nitrogen pollution is one of the most serious problems faced by various water bodies in my country. my country's current highest total nitrogen discharge standard is Class A (GB18918-2002), but the Class A total nitrogen limit (≤15mg / L) is the surface water Class IV (total nitrogen ≤ 1.5mg / L), its secondary pollution to the water body cannot be ignored, especially when the discharged water body is a closed water body, it is even more difficult to meet the water quality requirements, so economical and efficient deep denitrification is urgently needed technology. In addition, with the continuous development of my country's economy, the increase in the use of nitrogen and phosphorus substances, and the use of a large number of agricultural chemical fertilizers have led to a low carbon-to-nitrogen ratio in my country's c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/34C02F3/30C02F101/10C02F101/16C02F101/20C02F101/30C02F101/38
Inventor 江鹰郑力程晓夏张玮
Owner 武汉江城泽源生态工程技术有限公司
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