Method for cultivating micro alga and photo-biologic reactor system utilized

A photobioreactor and microalgae technology, applied in photobioreactors, biochemical equipment and methods, biochemical instruments, etc., can solve the problems of medium pollution, increase of cultivation cost, temperature change, etc., and save manpower and material resources , Conducive to adding and exporting, avoiding the effect of pollution

Inactive Publication Date: 2006-08-30
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned cultivation process, each cycle needs to be cleaned, disinfected and inoculated before the next new cultivation cycle can be carried out. The number of cultures is relatively small, and the efficiency of cultivation is relatively low. It is generally more suitable for laboratory use, while for Industrialized production increases the cost of culture accordingly; in this culture method, the addition of the culture medium is done manually, which is time-consuming and laborious, and the use of a water pump to add the culture medium will easily lead to contamination of the culture medium and damage caused by the operation of the pump. temperature changes; and if the method of partially collecting culture products and adding medium at the same time is used, since the monomeric photobioreactor is cultivated in a relatively independent manner, the addition of medium and the collection of culture products are separated in time and space. Continuous, it is easy to cause part of the collected culture products to be added medium, which will affect the effect of culture and cause low efficiency of culture

Method used

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  • Method for cultivating micro alga and photo-biologic reactor system utilized
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  • Method for cultivating micro alga and photo-biologic reactor system utilized

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Effect test

Embodiment 1

[0024] Embodiment 1: A method for cultivating microalgae is carried out in a five-stage photobioreactor system 1, comprising the following steps: 1. through a high-level water storage container 4 containing a medium and a connection high-level water storage container 4 and the filling guide tube 5 of the first-stage closed photobioreactor 11 adds culture medium to the first-stage closed photobioreactor 11 in a self-flowing manner; 2. in each stage of closed photobioreactor Inflate CO through gas tube 9 2 gas and carry out the circulation culture of the culture medium, ③transfer the culture medium in the closed photobioreactor of the upper level to the closed type photobioreactor of the next level In the photobioreactor, ④ pass through a low-level water storage container 6 and a collection guide pipe 7 connecting the fifth-level closed photobioreactor 15 and the low-level water storage container 6 from the fifth-level closed type in a self-flowing manner. Microalgae products a...

Embodiment 2

[0028] Embodiment 2: A method for cultivating microalgae is carried out in a secondary photobioreactor system 1', comprising the following steps: ① through a high-level water storage container 4' containing a medium and a connection high-level storage The water container 4' and the filling guide tube 5' of the first-stage closed photobioreactor 11' add culture medium to the first-stage closed photobioreactor 11' in a self-flowing manner; ② at each stage The closed photobioreactor is filled with CO through the gas tube 9' 2 gas and carry out the circulation culture of the culture solution, ③ transport the culture solution in the first-stage closed photobioreactor 11' to the second-stage closed photobioreactor 12' by connecting the guide tube 3', ④ pass A low-level water storage container 6' and a collection guide pipe 7' that connects the second-stage closed photobioreactor 12' and the low-position water storage container 6' flow from the second-stage closed photobioreactor in ...

Embodiment 3

[0029] Embodiment 3: A kind of photobioreactor system is a five-level closed photobioreactor system 1 composed of five closed photobioreactors, five closed photobioreactors are arranged on the support 2, each The closed photobioreactors are connected to each other through the connecting guide tube 3, and a high-level water storage container 4 is connected to the first-stage closed photobioreactor 11 through the filling guide tube 5, and the high-level water storage container 4 is connected to each other through the filling guide tube 5. Injection guide tube 5 delivers culture medium to first-stage closed photobioreactor 11, and a low-level water storage container 6 is connected with fifth-level closed-type photobioreactor 15 through collection guide tube 7, and low-position water storage container 6 Collect the culture product from the fifth stage closed photobioreactor 15 by collecting the draft tube 7; the connecting draft tube 5 is provided with a glass tee 8, and the bottom...

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Abstract

A multistage closed type of photobiological reactor system is integrated by multipiece photobiological reactor in closed type. the method for cultivating microalgae includes adding culture medium in the first stage closed photobiological reactor (CPR), cultivating culture solution at each stage CPR, transfering culture solution from last stage CPR to next stage CPR and collecting product at tail stage CPR.

Description

technical field [0001] The invention relates to a photobioreactor system and a method for cultivating microalgae with the photobioreactor system. Background technique [0002] The existing microalgae cultivation is mainly carried out in photobioreactors. So far, a wide variety of photobioreactors with different structures have been successfully developed, including open pool, horizontal tubular, vertical tubular, flexible bag and other types. There are two representative types: raceway pool type and closed photobioreactor. The former is suitable for microalgae that can be cultured openly, has low production costs, and can maintain a certain yield in large-scale production. The closed photobioreactor can be used for the cultivation of most algae, and it is easy to control the cultivation conditions and growth parameters; CO 2 High utilization rate. Among them, the typical ones are horizontal spiral tube type and vertical tube type, which are suitable for algae that are not...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/12C12M3/00
CPCC12M23/58C12M21/02C12M29/08
Inventor 骆其君裴鲁青严小军马斌徐善良徐继林周成旭
Owner NINGBO UNIV
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