JPS60126075A - Oxygen-producing bioreactor device - Google Patents

Abstract

PURPOSE:To provide a device for producing O2 saving the electric power and energy, and consisting of a culture vessel containing a culture liquid and a photosynthetic organism, a CO2 source and an optical fiber for introducing CO2 and light, and an O2 container to receive and store the produced O2. CONSTITUTION:A culture liquid containing photosynthetic organism (e.g. Chlorella) is put into the culture vessel 21, and the photosynthesis of an organic material is carried out by assimilating carbon dioxide gas by the light energy supplied through the optical fiber 23. In the above process, oxygen gas is produced by the reduction of carbon dioxide and the deprivation of electron from OH<-> caused by the photo-decomposition of water. The temperature of the culture vessel is controlled by the temperature controller 26 to a temperature suitable for the growth and the photosynthesis of the photosynthetic organism, and the photosynthetic organisms in the culture liquid 22 are dispersed by the stirring blades 24 to accelerate the photosynthesis. O2 is separated from the culture liquid 22 to the oxygen tank 29 by the gas-liquid separation membrane 28. The device can be used in a closed space such as manned space base, underwater base, etc. to which the external energy supply is difficult.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oxygen production bioreactor device that utilizes source energy to produce oxygen necessary for supporting human life, for example, by using photopolybenthos VlJ.

Conventionally, there have been few oxygen generators that utilize water electrolysis as shown in the block diagram of FIG. In the figure, +1) is the anode, (2) is the cathode, and (3) is water, which is the electrolyte.

(Shu is oxygen generated by electrolysis of water, (5) is also hydrogen, (6) is a DC power source, (7) and (8) are oxygen tanks (9) that contain the generated oxygen and hydrogen, respectively, A pump that sends water to the hydrogen tank αQ, (Iυ is a water tank that stores water for replenishment, and Q proverbs contain '4 solution for replenishment.'
1 folding liquid tank.

Next, the operation will be explained. When an IU current voltage is applied between the electrodes tll and +21 from the DC power source (6), oxygen is generated from the first field electrode (1) and υ hydrogen is generated from the cathode (2) due to water electrolysis. Next, the oxygen (4) and hydrogen (5) accumulated in the air chamber are pumped (8) into oxygen tanks (9).
) and pumped into the hydrogen tank 61.

Conventional devices are configured with two or more units, so in order to generate oxygen, power must be continuously supplied from a DC power source, which consumes 14L, and is not suitable for use in manned space bases or underwater bases. There was a problem in using it in a closed space where it was difficult to supply energy from the outside.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it consists of a culture vessel containing a photosynthetic organism along with a culture solution, a carbon dioxide gas source that supplies carbon dioxide gas to the culture vessel, and a light that introduces light and sound. The purpose of the present invention is to save power and energy by providing an oxygen production bioreactor device equipped with fibers and an oxygen container that extracts and stores oxygen generated by the photosynthetic benthic organisms from the culture container, thereby saving power and energy.

An embodiment of the present invention will be described below with reference to the drawings. Second
In the figure, Qυ is a culture container, and Qshi is a culture solution mixed with photosynthetic organisms housed in the culture container Qυ.

(c) is a source fiber that is used to supply sunlight or artificial light from the outside to the culture medium (2), and is supplied to the photosynthetic organisms in the culture medium (2); Stirring lobella to disperse photosynthetic organisms.

(c) is the motor that rotates the Blackbella G20 fully, (c) is the temperature controller that promotes photosynthesis, and the punishment is the culture container Q
A carbon dioxide gas source that supplies carbon dioxide to υ, in this case a carbon dioxide gas cylinder, (c) is a gas-liquid separation membrane that separates oxygen from the culture solution @, and C71 is a culture vessel Qυ generated by photosynthesis of photosynthetic organisms. An oxygen container that stores oxygen, in this case an oxygen tank, (to) a pump that delivers the above oxygen to the oxygen tank l/J, C1υ is a photosynthetic organism tank that stores photosynthetic organisms for replenishment, and O3 is an oxygen tank for replenishment. A culture medium tank that stores the culture solution, (C) is a waste liquid tank, and C (grrrr).

price) is a pump.

Next, the operation of this invention will be explained. Photosynthetic organisms (for example, chlorella) in the culture solution (c) perform photosynthesis in which they assimilate carbon dioxide and synthesize organic matter using the energy of light supplied by the optical fiber. This supernatant reduces carbonic acid and generates oxygen molecules, but 2 water is photolyzed and electrons are taken away from hydroxide ions, thereby generating oxygen gas. The temperature controller (2) controls the temperature of the culture container to a temperature suitable for the growth and photosynthesis of photosynthetic organisms, and the stirring propeller (2) disperses the photosynthetic organisms in the culture solution (c), both of which promote photosynthesis. . Further, a gas-liquid separation membrane (a) is installed on the oxygen tank side and the oxygen outlet side to separate oxygen from the culture solution so that it can be used even in zero gravity conditions.

Green algae and cyanobacteria are used as photosynthetic organisms.

Examples of green algae include Chlorella
, Chlamydomona X (Ohlam7dOmOnae)
, Hydrodiction
n), Ohloroephaer
a) Chlorococcus (Cb, 1 o r o -c
occum), Onaracium,
Chlorochytrium
, Trebouxia, Pediast-rum, OOcystie, Chod
atella), Nephrocyteium
-tium), Botryoccus
occurrence).

These include eelθnastrum, Scenedesmus, Dictyosphaerium, Proto-siphon, and the like. Examples of blue-green algae include Chlorococcus (Ohr).
oococcus), Synechosteis (Synech)
OcystiB), Synechococcus (Sy-necho
coccus), Tetrapedia (Tetraped)
ia).

Microcystis, A, phanocapsa, Maris-n+opedia, Eucapsiθ, Gloeocapsa
oeocapea), Phyloderma (Phy-110)
dlrlna), Pleurocap
sa).

Oncobyre?, Xenoccocus, GOm-phosphaeria, Dernnocarpa.

Chamaesiphon, OscillatOria, Spirulina.

Lyngbya, Formizoium (P
horn+id1um), Anabaen
a), Nostoc, Cylindrospermum, Rivularia.

Calothrix, Sitnema (
ScytO-nama),) Ribothrix (Tolyp
othrix) Stigonema (Sti, gonem)
a), haha o 77 off (11apaloB1p
hon), Mae-tigo
cl:adus), Brachyt
ri-chia) etc. Chlorella is particularly suitable because it is readily available and can be used as a secondary food.

Figure 3 is a characteristic diagram showing changes over time in the rate of oxygen production by photosynthesis of photosynthetic organisms, where the vertical axis is the amount of oxygen production.

The horizontal axis represents elapsed time. A 5 ot culture container containing chlorella and several extracts of green algae was used.

The growth was carried out at a light intensity of 10,000 lux and a growth temperature of 25° C., and oxygen was obtained at an average generation rate of 30 mt/min. The figure also shows that the amount of oxygen generated gradually decreases with time. This is thought to be due to aging of the culture medium and death of photosynthetic organisms, so in order to constantly obtain a constant amount of oxygen, new culture medium and photosynthetic organisms must be replenished.

Or replacement is required. The light intensity of 10,000 lux under these conditions is the most efficient before the amount of oxygen generation reaches saturation, and the growth temperature is also suitable for promoting the growth and photosynthesis of chlorella and the like. or.

For example, the optimum temperature for growing mastigogradus is 50°C.
It is.

In the above examples, photosynthetic organisms were used as they were grown in the culture solution, but cells of microorganisms or chloroplasts extracted from microorganisms may be immobilized in a gel such as polyacrylamide.

The oxygen production bioreactor device of this invention utilizes the photosynthesis of photosynthetic organisms to generate oxygen using light energy without using electricity, so it does not require a large amount of electricity, so it can be used as an energy source for manned space bases and underwater bases. Suitable for use in places where replenishment is difficult.

As described above, according to the present invention, there is provided a culture vessel containing a photosynthetic organism together with a culture solution, a carbon dioxide gas source that supplies carbon dioxide gas to the culture vessel, an optical fiber that introduces light, and a culture vessel in which the photosynthetic organism generates photosynthetic gas. Since the device is equipped with an oxygen container for deriving and storing fc oxygen from the culture container, it uses photosynthetic organisms that perform photosynthesis using 92 yuan energy and generate enemy search, so power consumption is low.

The energy-saving oxygen production bioreactor device can provide all the benefits.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing a conventional oxygen generating device, Fig. 2 is a schematic diagram showing an enzyme physiological bioreactor device according to an embodiment of the present invention, and Fig. 3 is a diagram showing the rate of oxygen generation by photosynthesis of photosynthetic organisms over time. FIG. 3 is a characteristic diagram showing changes. In the figure, (1) is the anode, (2) is the pole, (3) is the water,
(4) is generated oxygen, (5) is generated hydrogen, (6)
is the m current district. (71, (81 is the pump, (9) is the oxygen tank, 01
is a hydrogen tank, aυ is a water tank for supplementary lighting, and hot water is for replenishment *
Solution tank, Qυ culture container, (2) is a culture solution mixed with photosynthetic organisms, cA3 is an optical fiber, (2) is a stirring propeller, (E) is a motor, (C) is a temperature controller, @
is a carbon dioxide source. In this case, it is a carbon dioxide gas cylinder, @ is a gas-liquid separation membrane, (2) is an oxygen container, Jin is an oxygen tank, and - is a pump. 0υ is a photosynthetic organism tank for replenishment, a medium tank for 6-knife replenishment, the 0th floor is a firing tank, and (b), (to), and (to) are pumps. Agent Masuo Oiwa Showa Year Month Day 1. Display of case Japanese Patent Application No. 58-232448 No. 73, amended party 5, column for detailed explanation of the invention in the specification to be amended. 6. Contents of the amendment (1) “5piulina” on page 6, line 20 of the specification
Correct J to ``5pirul ina J.'' (2) Correct mas-J to rMas-J on page 7, line 8.

Claims (1)

[Scope of Claims] +11 A culture vessel containing a photosynthetic organism along with a culture solution, a carbon dioxide gas source that supplies carbon dioxide gas to the culture vessel, and an optical fiber that introduces light into the culture vessel. An oxygen production bioreactor device comprising an oxygen container that extracts and stores oxygen produced by photosynthesis by the photosynthetic organisms from the culture container. (2) The oxygen production bioreactor device according to claim 1, wherein the culture container is equipped with a temperature controller that promotes photosynthesis of photosynthetic organisms. (3) The oxygen production bioreactor according to claim 1 or 2, wherein the culture container is equipped with a gas-liquid separation membrane to separate oxygen from the culture solution and release the oxygen into the oxygen container. Device. (4) The oxygen production bioreactor device according to any one of claims 1 to 3, wherein the photosynthetic organism is green algae. (5) The oxygen producing pyroreactor device according to claim 4, wherein the photosynthetic organism is chlorella. (6) Claim 1 that the photosynthetic organism is an orchid ring
The oxygen production bioreactor apparatus according to any one of Items 1 to 3.