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Method for harvesting cultured spirulina

A harvesting method and technology of spirulina, which is applied in the field of harvesting cultured spirulina, can solve the problems of not being able to remove the medium components in time, affecting the continued growth of spirulina, and high density of algae in the culture pond, and achieve easy management and maintenance, large-scale Large, low energy consumption effect

Active Publication Date: 2011-09-14
LIJIANG CHENGHAI BAOER BIOLOGICAL DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the investment is large, the harvesting is slow, and the growth rate of spirulina exceeds the speed of daily collection, which makes the density of algae in the culture pond too high, thereby affecting the continued growth of spirulina. In addition, the components of the medium cannot be removed in time. Therefore, There is an urgent need to adopt efficient and rapid harvesting methods to meet the needs of large-scale production

Method used

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  • Method for harvesting cultured spirulina
  • Method for harvesting cultured spirulina

Examples

Experimental program
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Effect test

Embodiment 1

[0021] The present invention is composed of a pipe network device 1 , a split flow regulating device 2 , a filtration separation device 3 and a cleaning device 4 .

[0022] The pipe network device centralizes the cultured algae liquid in each culture pond to the diversion adjustment device in a self-flowing manner; the diversion adjustment device injects the algae liquid with a certain flow rate and flow into the filtration separation device and cleaning device to control and adjust the flow rate The amount of algae liquid in the filtration and separation device; the filtration and separation device uses a rice pocket filter to separate the algae mud from the liquid medium; the cleaning device washes and rinses the algae mud containing salt and high pH value with tap water to complete desalination and impurities .

[0023] 1) Pipe network device: The spirulina liquid in each culture pond passes through a closed pipe network and is gathered together for harvesting. Among them,...

Embodiment 2

[0029] The pipe network device 1 and the diversion regulating device 2 are the same as those in the first embodiment.

[0030] Filtration and separation device 3 is made of 360-mesh sieve silk, with a length of 15 meters and a diameter of 0.4 meters. Media separation.

[0031] The cleaning device 4 is the same as the first embodiment, and the algae mud containing salt and high pH value is rinsed with tap water to remove salt and impurities. After the rinsing is completed, open the water outlet valve at the bottom, pass the cleaned algae mud through the horizontal sieve bag to separate the algae mud from the clean cleaning water.

Embodiment 3

[0033] The pipe network device 1, the shunt adjustment device 2 and the filtration and separation device 3 are the same as the above two embodiments, first close the water outlet valve at the bottom of the cleaning device, raise the water level to be consistent with the height of the filtration and separation device 3; then open the water inlet, and carry out Rinse, and keep the water inlet and outlet consistent to maintain the water level; when filtration and separation are required, open the outlet valve at the bottom of the cleaning device to empty the water.

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Abstract

The invention discloses a method for harvesting cultured spirulina. The method is characterized in that the method comprises the steps of centralized harvesting, bypass flow filtering and separating and washing and rinsing combining; a pipe network device is used for transporting spirulina liquid cultured in each culture pond to a bypass flow adjusting device in a centralized manner by way of flowing automatically; the bypass flow adjusting device is used for injecting the spirulina liquid at certain flow rate and with certain quantity of flow to a filtration and separation device and a washing device and controlling and adjusting the quantity of spirulina liquid entering into the filtration and separation device; the filtration and separation device is used for separating the spirulina oozes from the liquid nutrient media by utilizing a filter screen; and the washing system is used for washing or rinsing the spirulina oozes with salinity and high pH value with tap water to remove salt and impurities.

Description

technical field [0001] The invention relates to a method for harvesting cultured spirulina. Background technique [0002] Spirulina Spirulina Microalgae belonging to the phylum Cyanophyta, Oscillatoriaceae, are the earliest photosynthetic organisms on earth. Spirulina is a pure natural high-quality protein food source for human beings, with a protein content of 60-70%. Its unique phycocyanin can improve the activity of lymphocytes, enhance human immunity, and is also rich in vitamins and mineral elements. Relying on wild resources is far from meeting people's needs. At present, the original algae of spirulina are all derived from artificial breeding. [0003] The cultured spirulina is suitable for growth in alkaline water. Through cell mitosis, the length of algal filaments increases rapidly, and the number of individuals increases when the algal filaments break. Therefore, the medium for cultivating spirulina is all alkaline liquid, mainly adding alkaline substances such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/12C12R1/89
Inventor 徐青山谭应宏彭友邻殷丽川严小军骆其君屈桂华
Owner LIJIANG CHENGHAI BAOER BIOLOGICAL DEV
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