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A kind of immobilized composite flora material and preparation method thereof

A technology of compound flora and denitrification, which is applied in biochemical equipment and methods, immobilized enzymes, chemical instruments and methods, etc., to achieve the effects of strong resistance to environmental toxicity, short production cycle, and guaranteed mechanical properties

Active Publication Date: 2022-07-01
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0005] The purpose of the present invention is to propose an economical, efficient and stable solution to the problems existing in the existing water environment

Method used

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  • A kind of immobilized composite flora material and preparation method thereof
  • A kind of immobilized composite flora material and preparation method thereof

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Embodiment Construction

[0032] The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.

[0033] An immobilized composite flora material and a preparation method thereof, comprising the following steps.

[0034] (1) Domestication of granular sludge and selection of solid carbon sources

[0035]The anammox flocculent sludge was inoculated into the up-flow anaerobic sludge bed reactor UASB. Under anaerobic conditions, the temperature in the UASB reactor was controlled to 32-36 °C, and the pH value was adjusted to 7.5-8.5. The total nitrogen content of the influent is 200mg / L, and the culture is continuously operated for 12 months. The particle size of the obtained anammox granular sludge is 3-10 mm, bright red or brown-red, spherical in shape, and the total nitrogen removal rate reaches 85%. ~90%, mainly composed of Candidatus Brocacha, Candidatus Jettenia and Candidatus Anammoxoglobus species;...

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Abstract

The invention belongs to the technical field of water environment remediation, and discloses an immobilized composite flora material and a preparation method thereof. The anaerobic ammonia oxidation granular sludge treated by keeping alive, drying and sieving is used as the immobilized composite flora In the core of the material, polyvinyl alcohol and sodium alginate are used as the outer layer embedding agent, corn stalks are added to the outer layer to provide carbon source for denitrifying bacteria, and the denitrifying granular sludge and aerobic nitrifying granular sludge are embedded in the outer layer. , the immobilized composite flora material was prepared. The invention uses the immobilized microorganism technology to immobilize and cultivate anammox granular sludge, denitrifying granular sludge and aerobic nitrification granular sludge in the same carrier, and enriches highly active anammox bacteria, denitrifying bacteria and Aerobic nitrifying bacteria have the effect of simultaneously removing organic matter and nutrient salts in the water environment, and have the advantages of low cost, energy saving and environmental protection.

Description

technical field [0001] The invention belongs to the field of water environment restoration, and in particular relates to an immobilized composite flora material and a preparation method thereof. Background technique [0002] As my country's economic development continues to accelerate in the 21st century, due to the unreasonable industrial structure and extensive development model, my country's daily discharge of domestic sewage and industrial wastewater is about 164 million cubic meters, of which about 80% of the sewage is untreated. Any treatment is discharged, which makes the water environment problem increasingly serious. At present, the water pollution problem has become the main factor affecting the enhancement of my country's comprehensive national strength. Affected by human production and life, a large number of nutrients such as nitrogen and phosphorus enter into slow-flowing water bodies such as lakes and rivers, resulting in different degrees of eutrophication in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N11/00C02F3/34C02F3/00
CPCC02F3/34C02F3/302C02F2305/06
Inventor 陈宏龚丽玲杜春艳禹丽娥胡颖冰黄灵芝涂智蒋朝晖刘达山许荣华
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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