RU2315805C2 - Device for cultivation of micro-algae - Google Patents

Abstract

FIELD: bioengineering.

SUBSTANCE: proposed device has housing with cover; side walls of housing are provided with light-reflecting surfaces. Housing is provided with micro-algae cultivation reservoirs which are mounted on grate; housing is also provided with filament lamps which are equidistant relative to reservoirs. Device is also provided with heating unit located under grate and sensors showing suspension concentration, suspension temperature and illuminance. Device is equipped with pipe line for delivery of carbon dioxide and discharge of oxygen.

EFFECT: reduction of power requirements; monitoring of technological parameters of process; enhanced efficiency.

4 dwg

Description

The invention relates to biotechnology.

A device for cultivating microalgae (chlorella) is known, including a frame, glass containers for microalgae cultivation, a light source and heating the suspension in the form of a lamp (KL-1 chlorella cultivator. Passport KX-1 PS TU 5144-001-39071599- 2000).

As a result of the presence in the known device of a frameless wall and one lamp for lighting and heating the containers, a large amount of electricity is consumed, since lighting and heating occur and the environment. The disadvantage of this device is the lack of control over the parameters of the process of cultivation of microalgae in containers.

The technical result of the invention is to reduce energy consumption for the cultivation process and to provide control over the technological parameters of the microalgae cultivation process.

This result is achieved when using a device for the cultivation of microalgae, including a housing with a lid, the side walls of which have reflective surfaces located in the housing of the tank for the cultivation of microalgae, mounted on a grill, interconnected incandescent lamps equidistant from the working capacities, a heating means located under grating, sensors for the concentration of the suspension, its temperature and illumination, and a pipeline for supplying carbon dioxide to the tank and for removing oxygen from them.

The invention is illustrated by drawings, in which:

figure 1 shows a General view of the body in a perspective view;

figure 2 is a view a of figure 1 without a cover;

figure 3 is a section along BB of figure 2;

figure 4 is a section along bb In figure 2.

A device for cultivating microalgae includes a housing 1 with a lid 2, the side walls of which have reflective surfaces, glass containers 3 for cultivating microalgae located in the housing, mounted on a grate 4 with sockets 5 located on the bottom 6 of the housing.

In the housing 1, on its side walls, incandescent lamps 7 are installed, interconnected and equidistant from the containers. The heating means 8 is located under the grate. The device is equipped with sensors 9 of the concentration of the suspension, placed in pairs outside the tank below the expected level of the suspension in it, a temperature sensor 10 located in the tank, an illumination sensor 11 installed in the central part of the housing between the tanks, and a pipe 12 for supplying carbon dioxide to the tank and removing oxygen from them having nozzles located inside the containers. Sensors 9, 10 and 11 are connected to the control panel 13 of the control.

The device operates as follows.

Tanks 3 are filled with nutrient medium to a predetermined level and a suspension of microalgae, for example, Chlorella vulgaris, is introduced until the required initial cell density and the estimated amount of carbon dioxide are reached.

Tanks 3 are installed in slots 5 of lattice 4, as well as sensors 9, 10 and 11 of concentration, temperature and illumination. Close the cover 2 of the housing 1 and connect the sensors to the remote control 13 control. Turn on the lamp 7 to create illumination of the culture fluid in the containers. The presence of a housing with a lid, the walls of which have reflective surfaces, provides uniform illumination of the suspension in containers. The optimum cultivation temperature in them is maintained by means of heating means 8. The location of the latter under the grill provides an even distribution of heat throughout the body.

Once a day through the pipeline 12 in the tank 3 is supplied carbon dioxide. Throughout the cultivation period, oxygen is removed from this tank from the tanks to the collection tank. This oxygen can be used to cultivate other microorganisms, such as yeast.

The presence of sensors connected to the control panel 13 provides the ability to control the temperature and illumination of the tanks and determine the concentration of microalgae in them during cultivation and at the end of it.

When the concentration of the suspension reaches 50-60 million cells in 1 ml, the lamps and heating means are turned off, the cover of the housing 2 is opened, the sensors are removed and the biomass containers are replaced with new ones.

Thus, the proposed design of the device provides a reduction in energy consumption for the cultivation process and increase its efficiency.

Claims (1)

A device for the cultivation of microalgae, including a housing with a lid, the side walls of which have reflective surfaces located in the housing of the microalgae cultivation tank, mounted on a grate, incandescent lamps interconnected equally between the tanks, heating means located under the grate, suspension concentration sensors, its temperature and illumination and a pipeline for supplying carbon dioxide to the tank and the removal of oxygen from them.

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