Device and method for cultivating microalgae

A microalgae and injection device technology, applied in the field of microalgae cultivation, can solve the problems of long microalgae cycle, low production volume, high production cost, etc., and achieve the effect of maintaining exponential growth period, low cost, and small footprint

Inactive Publication Date: 2010-12-15
张建洲
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Problems solved by technology

[0004] The industrial production of microalgae biodiesel requires a large amount of microalgae, while the existing cul

Method used

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  • Device and method for cultivating microalgae
  • Device and method for cultivating microalgae
  • Device and method for cultivating microalgae

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[0032] In order to further understand the present invention, the preferred embodiments of the present invention will be described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0033] Due to the extensive use of chemical fertilizers, domestic sewage and surface water in our country contain a lot of nutrients, especially nitrogen and phosphorus. However, it is difficult to remove nitrogen and phosphorus with traditional sewage treatment methods. Therefore, large areas of cyanobacteria are often exploded in water bodies throughout my country. The invention utilizes the rich nutrients in domestic sewage to be converted into algae food, cultivates microalgae that can be used to produce biodiesel, and simultaneously removes organic matter and nitrogen, phosphorus, and potassium in the sewage.

[0034]...

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Abstract

The invention provides a device for combining microalgae cultivation and sewage treatment. The device comprises a first container, a second container and a third container which are made of a light-transmitting material, wherein a water outlet of the first container is connected with a water inlet of the second container; the second container is sleeved in the third container; an aerating device is arranged at the bottom of the first container; a carbon dioxide spraying device, a microalgae liquid spraying device and an oxygen collecting device are arranged at the bottom of the second container; the bottom of the second container is communicated with the third container; the bottom of the third container is conical, and a spoil disposal pipe is arranged at the bottom of the third container; and a microalgae harvesting pipe is arranged on the side wall of the third container. The device can provide ideal intergrowth environment for algae and bacteria, cultivate the microalgae for producing biodiesel and perform sewage treatment to remove organic matters and phospho-nitrogen from water effectively and reduce the chance of bursting blue-green algae in a large area in water bodies of China. The device has the advantages of short cultivating period and high yield of the microalgae, can realize the industrial production of the microalgae, and is favorable for environmental protection.

Description

technical field [0001] The invention relates to the technical field of microalgae cultivation, in particular to a microalgae cultivation device and method. Background technique [0002] Microalgae biodiesel energy technology is a new type of bioenergy technology that uses microalgae photosynthesis to convert solar energy and carbon dioxide into energy products. In recent years, the fluctuation and rise of petroleum and fuel prices and the total carbon emission limit are two major problems facing the world at present, and biodiesel and biofuel made from sustainable algae have great potential to solve the above two problems. [0003] Microalgae biodiesel is a high-quality substitute for petrochemical diesel. Compared with ordinary petrochemical diesel, microalgae biodiesel has excellent environmental performance, and sulfide emissions can be reduced by 70%. It is non-toxic and biodegradable. It is a clean alternative fuel , and the raw materials for the production of biodiese...

Claims

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Application Information

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IPC IPC(8): C12M1/00C12M1/04C12N1/12C02F3/34C12R1/89
CPCC12M29/06C12M21/02C12M29/04C12M31/10C12M33/22C12M21/12C12M23/34C12M23/20Y02W10/37
Inventor 张建洲
Owner 张建洲
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