A carbon emission reduction biological algae board

Abstract

The present invention belongs to the technical field of carbon neutralization, and particularly relates to a carbon emission reduction biological algae board. The technical problem to be solved by the present invention is to provide a new option for the comprehensive utilization of algae. The technical solution of the present invention is a carbon emission reduction biological algae board, which includes a flat plate structure formed by a number of culture cavities distributed in an array, and the upper surface of the culture cavity is sealed with a semi-permeable membrane; a crystal soil culture medium containing algal species and their culture media is placed in the culture cavity. The algae board utilizes the characteristics of fast growth and reproduction, strong adaptability, and high absorption and conversion efficiency of algae to fix carbon in human settlement and office scenarios, so that CO2 in the air is converted into organic carbon, oxygen is released, and the air is purified.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon neutralization, and particularly relates to a carbon emission reduction biological algae plate. Background Art

[0002] In recent years, the problem of global warming has attracted more and more attention. Worldwide, more than one hundred countries and regions have put forward the concept of "carbon neutrality" and vigorously developed a low-carbon economy. And the contribution rate of CO2 to the "greenhouse effect" is about 60% of all greenhouse gases. Sustainable collection and fixation of CO2 in the air to reduce the content of CO2 in the air is an effective measure to reduce the "greenhouse effect". Carbon fixation by photosynthesis is a process in which autotrophic organisms absorb CO2 through photosynthesis and convert it into organic matter. Algae are the oldest organisms on earth. The photosynthesis of algae has mainly promoted the accumulation of oxygen in the earth's atmosphere. The utilization rate of sunlight by algae is 30 times that of ordinary plants. Using algae for CO2 fixation has great advantages. At present, the main form of utilization of algae photosynthesis is to extract the esters of algal cells to produce biodiesel, which generally requires a large site and space. Under the current strong demand for carbon neutralization, in order to better utilize algae, it is of great significance to develop an algae carbon fixation device that is efficient, convenient, flexible and applicable to various scenarios. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a new option for the comprehensive utilization of algae.

[0004] The technical solution of the present invention is a carbon emission reduction biological algae plate, which includes a flat plate structure formed by a number of culture cavities arranged in an array. The upper surface of the culture cavity is sealed with a semi-permeable membrane; a culture medium and an algal seed crystal soil culture medium are placed in the culture cavity.

[0005] Further, the height of the culture cavity is 20 mm, and the bottom area is 20 - 55 cm 2 .

[0006] Among them, the bottom surface of the culture cavity is a frosted surface.

[0007] Further, the algae plate further includes a bracket or a hanging structure for placing the algae plate on a table or hanging it on a wall.

[0008] Specifically, the preparation method of the crystal soil culture medium is as follows: inoculate an algal seed suspension with an absorbance (OD 650 ) value of 1 into the algal culture solution at an inoculation amount of 10%; mix the algal culture solution with the crystal soil until the crystal soil reaches water saturation, that is, the culture medium is obtained. Fill the culture medium into the culture cavity, and the carbon emission reduction biological algae plate is obtained.

[0009] Furthermore, the algae species are phytoplankton capable of photosynthesis, and both prokaryotic and eukaryotic algae are applicable, such as cyanobacteria, green algae, dinoflagellates or diatoms.

[0010] Preferably, the cyanobacteria are nitrogen-fixing or non-nitrogen-fixing cyanobacteria.

[0011] Preferably, the algae species are matched according to scene lighting, temperature and humidity and other conditions. Generally, green algae and cyanobacteria are matched, and the cell number ratio is 7:3.

[0012] The culture matrix material used in the present invention is a powdered crystal soil material with a developed internal pore structure, a large specific surface area, strong adsorption capacity, and strong plasticity. Crystal soil has a strong ability to absorb and store water, and can also store the nutrients necessary for cultivating algae species. Due to its special void structure and adsorption capacity, when a certain amount of nutrient solution is stored, the nutrient solution will not leak or flow due to objective factors such as gravity. The strong plasticity of crystal soil is conducive to filling the culture matrix into the culture holes of the algae board flat structure. However, from the side, the algae board is a very thin sheet structure, which fully utilizes the vertical space without causing accumulation in the horizontal space. The surface of the algae board used in this patent is uneven. These uneven pits can increase the surface area of ​​the algae board and provide more growth space for algae, so as to more effectively utilize the wall and desktop per unit area for photosynthesis and fix indoor carbon dioxide.

[0013] The size of the algae board can be adjusted according to the needs of the use scenario. The small size can be placed on desks and office desks where the light duration is long and human activities are relatively more, which is conducive to effectively absorbing the carbon dioxide produced by breathing. The large size algae board can be hung in large spaces such as living rooms, balconies, and conference rooms to make full use of the light source in the space and absorb carbon dioxide.

[0014] The present invention is based on the characteristics of algae that are widely distributed in nature, reproduce quickly, have strong adaptability, absorb a lot, and convert quickly. Starting from every household and office place, the temperature, light and other conditions of human indoor living and activity places are utilized to make the algae in the algae board grow rapidly and convert the carbon dioxide in the air into organic carbon in algae cells. This not only recycles and reduces carbon emissions from these indoor places, but also enables the algae board to participate in carbon trading like generating electricity with solar panels on the roof, thereby contributing to the reduction of carbon dioxide emissions in the whole society.

[0015] Beneficial effects of the invention: In order to make full use of the photosynthesis of algae and meet the great demand for carbon neutrality, the invention provides an algae growth board suitable for hanging on home walls and inlaying on furniture surfaces. The algae has the characteristics of fast growth and reproduction, strong adaptability, and high absorption and conversion efficiency to fix carbon in human settlements and offices, converting CO2 in the air into organic carbon, releasing oxygen, and purifying the air. The device can be used to cultivate algae to achieve a carbon content of about 540mg C / m2 · The carbon absorption effect in one day is achieved, realizing low energy consumption, low cost, high growth rate and high carbon fixation efficiency. After carbon neutralization, the cultivated algae can be collected for consumption. In the later stage of product development, sensors such as carbon dioxide probes can be used to obtain the carbon absorption data of each algae plate, and the Internet of Things can be used to integrate into the carbon emission big data platform to realize real-time networking and trading of carbon emission reduction data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 - Schematic structural diagram of the algae plate;

[0017] Figure 2 - Schematic structural diagram of the algae plate;

[0018] Figure 3 - Schematic diagram of algae production;

[0019] Markings in the figure: 1 - flat structure, 2 - culture cavity, 3 - upper surface. DETAILED DESCRIPTION OF THE INVENTION

[0020] Example 1 Assembly of the Algae Plate of the Present Invention

[0021] As Figure 1 shown, the algae plate includes a flat structure formed by a number of culture cavities distributed in an array, and the upper surface of the culture cavity is sealed with a semi-permeable membrane; a bracket or hanging structure is also provided. The flat structure selects polystyrene as the material, and the size is a flat cuboid with a length of 120 cm, a width of 100 cm and a height of 2 cm. The bottom of the culture cavity is a frosted surface to enhance the effect of holding the culture medium. The size of the culture cavity is 20 mm in height, and the growth area is 20 - 55 cm 2 .

[0022] Example 2 Preparation of Algae

[0023] Algae species: Determine the single or mixed algae species according to the indoor light, temperature and daily carbon emissions of the specific use place. If the carbon emissions of the residence using the algae plate are not high but the light is weak, then a combination of cyanobacteria algae species and dinoflagellate algae species needs to be used to ensure the biomass of the algae; if the light is good and the carbon emissions are high, then mainly eukaryotic algae species, etc.

[0024] Ma medium culture medium formula:

[0025]

[0026]

[0027] Preparation and inoculation of the culture medium: Inoculate according to a 10% inoculation amount with a light transmittance (OD 650) The algal species suspension with a value of 1 is added to the algal culture medium (MA medium); the inoculated algal culture medium is mixed with the hydrogel soil until the hydrogel soil reaches water saturation, thus obtaining the culture medium substrate. The culture medium substrate prepared in the present invention is to provide better growth conditions for the algal species. Since the hydrogel soil has strong plasticity, it can completely fit with the frosted surface of the culture cavities on the lightweight porous plate, enabling the culture medium substrate to be stably fixed on the porous plate; the porosity of the hydrogel soil can store and lock the nutrient elements of the algal culture medium, providing a safe and stable growth space for the inoculated algal species.

[0028] For the inoculation amount of the algal species, it is necessary to determine the type and approximate quantity of the algal species according to the indoor conditions of the specific usage site, such as light, temperature, and the daily carbon emissions of the occupants, and then determine the inoculation amount of the algal species. For the daily environment, generally, Chlorella (green algae) and cyanobacteria can be used in combination (cell number ratio 7:3), and the inoculated algal species suspension (OD 650 = 1) amount is generally 10% of the volume of the algal culture medium.

[0029] The assembled flat cuboid algal plate (120 cm * 100 cm) with a length of 120 cm, a width of 100 cm, and a height of 2 cm is hung indoors. The initial TOC concentration is 283.0 ± 0.30% mg / L. After 15 days of cultivation, the TOC concentration increases to 335.5.7 ± 0.20% mg / L, and the TOC growth in the algal plate is approximately 55 mg / L. The light cycle is 24L:0D, which is the growth requirement condition for Microcystis 843. The room temperature in the home environment always meets the suitable temperature for algal growth. Under the condition that 24-hour light cannot be satisfied, its growth cycle will be extended, and the service life of the algal plate will also be extended.

Claims

1. A carbon emission reduction biological algae board, characterized in that, It includes a flat plate structure formed by a number of culture cavities distributed in an array. The upper surface of the culture cavity is sealed with a semi-permeable membrane. Crystal soil culture medium containing culture medium and algal seeds is placed in the culture cavity. The surface of the algal plate is uneven with small pits, which can increase the surface area of the algal plate, provide more growth space for algae, so as to more effectively utilize the wall and desktop per unit area for photosynthesis and fix indoor carbon dioxide. The preparation method of the crystal soil culture medium is as follows: inoculate the algal species suspension with an absorbance (OD 650 value of 1 into the algal culture solution at an inoculation amount of 10%; mix the inoculated algal culture solution with the crystal soil until the crystal soil reaches water saturation, that is, clear water appears on the surface of the crystal soil, and the culture medium is obtained; fill the culture medium into the culture holes to obtain the carbon emission reduction biological algal board; The formula of the algal culture solution is calcium nitrate tetrahydrate, potassium nitrate, β-glycerophosphate sodium pentahydrate, N,N-bis(2-hydroxyethyl)glycine, sodium nitrate, sodium sulfate, magnesium chloride hexahydrate, disodium ethylenediaminetetraacetate, ferric chloride, manganese chloride tetrahydrate, zinc chloride, cobalt chloride hexahydrate, sodium molybdate and boric acid. Among them, the mother liquor concentration of calcium nitrate tetrahydrate is 1 g / 100 mL, the mother liquor concentration of potassium nitrate is 1 g / 100 mL, the mother liquor concentration of β-glycerophosphate sodium pentahydrate is 1 g / 100 mL, the mother liquor concentration of N,N-bis(2-hydroxyethyl)glycine is 5 g / 100 mL, the mother liquor concentration of sodium nitrate is 5 g / 100 mL, the mother liquor concentration of sodium sulfate is 4 g / 100 mL, the mother liquor concentration of magnesium chloride hexahydrate is 5 g / 100 mL, the mother liquor concentration of disodium ethylenediaminetetraacetate is 5 g / 100 mL, the mother liquor concentration of ferric chloride is 0.05 g / 100 mL, the mother liquor concentration of manganese chloride tetrahydrate is 1 g / 100 mL, the mother liquor concentration of zinc chloride is 0.05 g / 100 mL, the mother liquor concentration of cobalt chloride hexahydrate is 0.5 g / 100 mL, the mother liquor concentration of sodium molybdate is 0.25 g / 100 mL, the mother liquor concentration of boric acid is 2 g / 100 mL. The volume of the mother liquor required to prepare 1 L of the culture medium is 5 mL of the mother liquor of calcium nitrate tetrahydrate, 5 mL of the mother liquor of potassium nitrate, 10 mL of the mother liquor of β-glycerophosphate sodium pentahydrate, 10 mL of the mother liquor of N,N-bis(2-hydroxyethyl)glycine, 1 mL of the mother liquor of sodium nitrate, 1 mL of the mother liquor of sodium sulfate, 1 mL of the mother liquor of magnesium chloride hexahydrate, 0.1 mL of the mother liquor of disodium ethylenediaminetetraacetate, 0.6 mL of the mother liquor of ferric chloride, 0.5 mL of the mother liquor of manganese chloride tetrahydrate, 1 mL of the mother liquor of zinc chloride, 1 mL of the mother liquor of cobalt chloride hexahydrate, 0.32 mL of the mother liquor of sodium molybdate, 1 mL of the mother liquor of boric acid.

2. The carbon emission reduction biological algae board according to claim 1, wherein, The cultivation hole is 20 mm high and has a bottom area of 20 to 55 cm 2 .

3. The carbon emission reduction biological algae board according to claim 1 or 2, characterized in that, The bottom surface of the culture cavity is a frosted surface.

4. The carbon emission reduction biological algae board according to claim 1, characterized in that, The material of the flat plate structure is plastic.

5. The carbon emission reduction biological algae board according to claim 1, wherein The algal plate further includes a bracket or a hanging structure for placing the algal plate on the desktop or hanging it on the wall.

6. The carbon emission reduction biological algae board according to claim 1, wherein The algal seeds are cyanobacteria, green algae, dinoflagellates or diatoms.

7. The carbon emission reduction biological algae board according to claim 6, characterized in that, The cyanobacteria are nitrogen-fixing or non-nitrogen-fixing cyanobacteria.

8. The carbon emission reduction biological algae board according to claim 7, wherein, The algal seeds are a combination of green algae and cyanobacteria, and the cell number ratio is 7:3.

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