A microalgae cultivation system that realizes immobilized cultivation and deep purification of wastewater

A technology of immobilized culture and microalgae culture, applied in the field of microalgae culture, can solve the problems of limited algae concentration, increased cost, low yield, etc., and achieves the effects of high implementability, reduced labor intensity, and strong operability.

Active Publication Date: 2021-01-05
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In these culture systems, the microalgae cells are in the state of individual suspension growth, so the obtained algae concentration is relatively limited, especially when the microalgae culture is carried out with waste water with low nitrogen and phosphorus content, the obtained algae concentration is even more limited. Greatly increased the cost of subsequent dehydration and drying of algae liquid, so the inventors used immobilized culture of microalgae to make up for the low yield and high cost of microalgae

Method used

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  • A microalgae cultivation system that realizes immobilized cultivation and deep purification of wastewater
  • A microalgae cultivation system that realizes immobilized cultivation and deep purification of wastewater
  • A microalgae cultivation system that realizes immobilized cultivation and deep purification of wastewater

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Experimental program
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Effect test

Embodiment 1

[0031] Such as figure 1 , 5 As shown, a microalgae cultivation system that realizes immobilized cultivation and deep purification of waste water includes a microalgae biofilm cultivator 1 and a circulating water tank 3, the microalgae biofilm cultivator 1 is obliquely connected to the upper end of the circulating water tank 3, and the circulating water tank 3 It is connected to the microalgae biofilm culture device 1 , and a culture plate 8 is connected inside the microalgae biofilm culture device 1 . The preferred inclination angle α of the microalgae biofilm culture device 1 is 18 °, and the inclination angle that the microalgae biofilm culture device 1 is provided with makes the flow velocity of the water flow on the surface of the culture plate 8 suitable, suitable for immobilized cultivation of microalgae, for the best tilt angle. The microalgae biofilm culture device 1 includes a culture plate 8 , the side wall of the culture plate 8 is connected with a glass cover, an...

Embodiment 2

[0035] Such as Figure 2~8 As shown, in this embodiment, on the basis of Example 1, the further optimization scheme is: the microalgae biofilm culture device 1 is obliquely connected to the upper end of the circulating water tank 3 through the supporting column 2, and the connection between the supporting column 2 and the circulating water tank 3 is elastic. Block 4, the circulating water tank 3 is connected to the microalgae biofilm culture device 1 through the water pump 5, and the microalgae biofilm culture device 1 is connected with a culture plate 8 inside. The microalgae biofilm culture device 1 provides microalgae cultivation, and the connection between the microalgae biofilm culture device 1 and the circulating water tank 3 realizes the recycling of the water body inside the circulating water tank 3, which can realize the recycling and purification of waste water or the full utilization of the culture solution , in order to save the cost of microalgae cultivation, wast...

Embodiment 3

[0044]combine figure 1 The schematic diagram of the system flow and Figure 9 The system flow diagram of the system is a further detailed description of the workflow of this system: the culture medium is evenly distributed on the surface of the microalgae biofilm through the culture medium into the water b, and the microalgae is cultivated c, and the culture after the absorption of the microalgae biofilm The liquid outlet water d flows back into the circulating water tank 3 through the water inlet e of the water tank, and the cultivator extracts the culture solution in the circulating water tank 3 for water quality inspection. The circulating water outlet a is sent back to the culture solution inlet b to re-cultivate the microalgae biofilm. When the water quality monitoring reaches the standard, replace it with a new culture solution until the microalgae biofilm cultivation is completed.

[0045] The conventional technology in this embodiment is the prior art known to those s...

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Abstract

The invention discloses a microalgae culture system for immobilized culture and deep purifying of wastewater, and belongs to the technical field of microalgae culture. The microalgae culture system comprises a microalgae biological film culture device and a circulating water tank, wherein the microalgae biological film culture device is slantwise connected with the upper end of the circulating water tank through a support column; an elastic block is connected between the support column and the circulating water tank; the circulating water tank is connected with the microalgae biological film culture device through a water pump; the interior of the microalgae biological film culture device is connected with a culture plate. The microalgae biological film culture system has the advantages that the structure is simple, and the immobilized biological film culture of the microalgae cell is realized by using the wastewater containing nitrogen and phosphor; the immobilized biological film culture of the microalgae is realized, the microalgae biological film with higher content of microorganisms is obtained, the nitrogen and phosphor in the wastewater can be deeply removed, the deep denitrifying and dephosphorizing of the wastewater is realized, and the higher benefit is obtained in the microalgae culture process.

Description

technical field [0001] The invention belongs to the technical field of microalgae cultivation, and in particular relates to a microalgae cultivation system for realizing immobilized cultivation and deep purification of waste water. Background technique [0002] Microalgae have the characteristics of rapid growth and high photosynthetic efficiency, and can effectively use solar energy to convert inorganic nutrients, CO 2 、H 2 O and other substances are converted into organic compounds, and the protein, carbohydrates, oils and other components contained in algae cells have great development and utilization value, and have been successfully used in the production of food, health care products, pharmaceuticals, animal feed and other industries . In addition, microalgae are also considered to be the only feedstock known to potentially replace fossil fuels. It has broad prospects for development and utilization in the field of bioenergy. [0003] At present, microalgae culture...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/12C12M1/00C02F3/32
CPCC02F3/322C12M23/02C12M25/02C12M29/18
Inventor 高锋李晨彭苑媛崔伟
Owner ZHEJIANG OCEAN UNIV
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