Manual intensive cultivation apparatus and cultivating method for algae

A cultivation device and algae technology, applied in seaweed cultivation, botanical equipment and methods, biochemical equipment and methods, etc., can solve the problems of insufficiency, dead, unstable cultivation, etc., and achieve the effect of good quality

Inactive Publication Date: 2007-08-15
KAGOSHIMA UNIV
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  • Abstract
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Problems solved by technology

[0011] However, in said prior art, these aspects are not considered, or very insufficiently
For example, in the above-mentioned prior art, due to the influence of water temperature and light in the natural environment, if the temperature drops or the sunshine time decreases under abnormal weather, etc., it will be affected by a longer cultivation period, deadness, etc.
In addition, in order to cultivate algae on land, it is necessary to introduce a large amount of seawater, and at this time, due to the large amount of liquid fertilizer used, it will cause pollution of the sea
Also, due to intensive farming, they are susceptible to disease
Due to such factors, the current land-based farming has a fatal shortcoming of unstable cultivation.

Method used

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  • Manual intensive cultivation apparatus and cultivating method for algae

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Embodiment 1

[0044] The cultivated algae are of the order Pteridophyta (クビレヅタ), an edible seaweed distributed in the south of Okinawa commonly known as "sea grapes".

[0045] In a cultivation water tank 1 (cultivation size: length 150 cm x width 100 cm x height 30 cm, tank volume 450 liters), a 100 cm x 100 cm mother algal mat 2 was fixed to a part with a water depth of 15 cm. The mother algae plant mat 2 is in the frame 2-a of the culture net (made of synthetic fiber) having an opening of 8 mm, at a rate of 1.5 kg / m 2 The mother algae 2-b was laid, and the same two culturing nets were used to sandwich the mother algae, and they were fixed with a tool so that the four-sided net frame would not open. The interval between the voids of the sandwich structure sandwiching the parent algae is 2 cm. The net and frame that clamps the parent algae is referred to herein as "Mother Phytofelt 2".

[0046] At the bottom of the cultivation water tank 1, an air dispersion pipe 3-a for introducing air i...

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Abstract

An apparatus for carrying out algae intensive-cultivation while conducting an environmental control most suitable for growth of algae in an artificial environment including dissolved gas, light, temperature, nutrient source and sanitary atmosphere; and a method of intensive cultivation therewith. There is provided an apparatus comprising water tank (1) for cultivating unialgae as seedling; gas dissolution diffusion units (3-a, 3-b) for achieving dissolution of a gas in a culture water of the water tank; light irradiation units (10, 11) for irradiating the water tank with light whose wavelength and illuminance are controlled; temperature control unit (20) for controlling the temperature of the culture water of the water tank so as to fall within a given range; nutrient salts adding unit (17) for adding to the water tank a nutrient liquid containing an essential nutrient source vital to the growth of algae; purification unit (12) for carrying out bacterial eradication and filtration of the culture water of the water tank; and meters for control of the above units.

Description

technical field [0001] The present invention relates to a land-based culture system for algae. In particular, it relates to a land cultivation apparatus and method for the purpose of artificially accelerating the cultivation of algae by completely artificially controlling the cultivation environment. Background technique [0002] The production of algal resources such as wakame, kelp, hijiki, and nori, which the Japanese have traditionally used for food, has become unstable due to abnormal weather, habitat destruction due to development, and marine pollution. In addition, due to environmental deterioration of the river, etc., the river laver is in danger of extinction. [0003] As a countermeasure therefor, from the viewpoint of stability and safety, research and development on land-based culture has been continuously conducted (for example, see the following Patent Documents 1-3). [0004] Patent Document 1: Japanese Patent Laid-Open No. 2002-320426 [0005] Patent Docum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/00C12N1/12
CPCA01G33/00C12M41/34C12M31/02C12M21/02C12M41/12C12M29/04C12M41/06C12M41/32Y02W10/37Y02A40/80A01G31/02
Inventor 加山浩之门胁秀策
Owner KAGOSHIMA UNIV
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