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Method for using carbon source to promote conversion of water body eutrophication substances through fungus capable of being used for feeding, and application of obtained product

A water body eutrophication and eutrophication technology, applied in the direction of chemical instruments and methods, water pollutants, special compound water treatment, etc., can solve the problems of unfavorable resource utilization, complex and changeable components, and difficult manual control, etc., to achieve easy Effects of promotion, high bacterial protein and polysaccharide content, and high material conversion efficiency

Pending Publication Date: 2018-12-14
ZHONGKAI UNIV OF AGRI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bioflocs are rich in microbial species, and it is very difficult to achieve effective artificial control, so their composition is complex and changeable, which is not conducive to resource utilization.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Put 400mL of artificially prepared eutrophication water sample into a 1L Erlenmeyer flask, which contains ammonium sulfate 135mg / L (110mg N / L). At the same time, glucose was added to 550 mg / L, and the group without glucose was used as the control group.

[0030] (2) Inoculate 20mL of mycelial ball suspension of Cordyceps fungus in the conical flask, the wet weight of its mycelial ball is 4g, on the shaking table at 160 rev / min, 28 ℃ intermittent culture 3d, during this mycelial ball constantly from water Absorption and utilization of carbon sources and ammonium sulfate in the phase produced new mycelial balls; at the same time, it was observed that no new mycelial balls were produced in the control group due to the lack of carbon sources.

[0031] (3) After the mycelial balls were collected by filtration with gauze with a pore size of 0.8 mm, they were transferred to qualitative filter paper and completely dried in an oven at 75° C. for 1 hour to obtain 5.6 g of Cor...

Embodiment 2

[0034] (1) The lateral volume is 1.4m 3 Inject 1.2m of fish pond water into the reaction tank 3 , of which total nitrogen is 2.8mg / L and total phosphorus is 1.1mg / L. At the same time, glucose was added to 550 mg / L, and the group without glucose was used as the control group.

[0035] (2) Inoculate 120L of the mycelial ball suspension of Cordyceps fungus in the reaction tank, the wet weight of its mycelial ball is 24kg, continuous aeration keeps the dissolved oxygen concentration greater than 3.0mg / L, and intermittently cultivates 1d at room temperature, during which the bacteria The hyphae balls continuously absorbed and utilized carbon sources, nitrogen and phosphorus, etc. from the water phase to form new mycelium balls; at the same time, it was observed that only a small amount of new mycelium balls were produced in the control group due to the lack of carbon sources.

[0036](3) After collecting mycelium balls with a filter bag (50 cm in diameter, 60 cm in depth, and 0.8...

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Abstract

The invention discloses a method for using a carbon source to promote conversion of water body eutrophication substances through a fungus capable of being used for feeding, and an application of an obtained product. The conversion method comprises the following steps: (1) a biological reactor is filled with a water body containing eutrophication substances, and a carbon source is added; (2) a fungus capable of being used for feeding is inoculated into the biological reactor, and batch culture is carried out for 1-3 days at room temperature, or continuous culture is carried out, so that the eutrophication substances are assimilated into a component of newly-propagated mycelium pellets; (3) the newly-propagated mycelium pellets are used for preparing animal feed. The newly-propagated mycelium pellets are rich in protein, polysaccharide and other bioactive components, can promote growth of animals, can inhibit pathogenic bacteria, and can guarantee animal health. According to the invention, on one hand, eutrophication substances in a water body are utilized, discharge of pollutants is reduced, and water environment purification is realized; and on the other hand, a fungus mycelium product which is rich in nutrition and has a health-care function for animals is obtained. Water environment is protected, the high-quality animal feed is obtained, and the method has a wide applicationvalue.

Description

technical field [0001] The invention relates to a method for promoting feedable fungi to transform water eutrophication substances with carbon sources and the application of the obtained products, specifically, adding carbon sources to promote feedable fungi to transform water body eutrophication substances to obtain bacterial protein products, It belongs to the field of environmental protection and resource recycling. Background technique [0002] Eutrophication of water bodies has become a global environmental pollution issue that has attracted much attention. According to statistics, 80% of the 96 lakes and reservoirs surveyed in Europe are polluted by nitrogen and phosphorus, showing a state of eutrophication. China's eutrophic and heavy eutrophic lakes also account for 66% and 22% of the total lakes, including China's famous five major freshwater lakes and scenic water bodies such as the West Lake, a tourist attraction. The total nitrogen and total phosphorus concentra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F101/16
CPCC02F3/34C02F3/347C02F2101/16C02F2305/06
Inventor 李义勇杨泳聪杜建军王宝娥林冲陶雪琴刘晖雷泽湘邹梦遥刘雯李永胜
Owner ZHONGKAI UNIV OF AGRI & ENG
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