SU1564181A1 - Apparatus for concentration of microalgae - Google Patents

Abstract

The invention relates to process devices for the microbiological industry and can be used to isolate microorganisms from solutions. The purpose of the invention is to increase the concentration of microalgae. The apparatus contains a tank 1 with process nozzles 2 and 3, a gas dispersing device 4 placed at the bottom of the tank and a collection of 5 microalgae concentrate. Supply the tank 1 with a horizontal flat lid 6 for sealing and forming in the upper part of the tank a zone 7 for drying the foam, placing a collection 5 of concentrate outside the tank above it and communicating it with the zone for drying the foam through a vertical pipe 8 for draining the foam, as well as performing the device 4 for dispersing the gas in the form of a horizontal perforated plate, the cross-sectional area of which is equal to the cross-sectional area of the tank 1, allows for the effective formation of foam, its further drying and removal Water from the flotation zone with a significant content of microalgae per unit volume. 1 il.

Description

The invention relates to process devices for the microbiological industry and can be used to isolate microorganisms from liquid media.

The purpose of the invention is to increase the concentration of microalgae .25

The drawing shows the proposed apparatus longitudinal section.

The apparatus for concentrating microalgae consists of tank I with process nozzles 2 and 3. In the bottom 30 of tank 1 there is a device 4 for dispersing gas, and above tank 1 is a collection 5 of microalgae concentrate. Capacity 1 has a HORIZONTAL FLAT COVER

for hermetic sealing and formation in the upper part of the tank of the zone 7 for drying the foam. The collection 5 of concentrate is in communication with the zone 7 of drying the foam through a vertical pipe 8 for removing the foam 40. The gas dispersing device 4 is a horizontal perforated plate, the cross-sectional area of which is equal to the cross-sectional area of the tank. 3 "On the 45 vertical nozzle 8 there is a three-way valve 9 for draining the concentrate through the nozzle 10 from the collector 5, which is equipped with an exhaust pipe 11 .50 i

The device works as follows.

A solution with microalgae is fed to the tank 1 through the nozzle 3. In this case, the tank 1 is not completely filled, leaving space for the zone 7 for drying the foam. After that, through the pipe 2 serves compressed air under

gas disperser 4. The passage through the horizontal perforated plate of the device 4, the air in the form of small bubbles rises upward through the solution, causing intense foaming in the zone 7 of drying the foam. The foam which forms in zone 7, striking horizontal flat racking 6, is dried, the liquid contained in it partially refluxes and flows down along the walls of tank 1. The upper most concentrated foam layers under the pressure of the air entering the tank 1 through the vertical nozzle 8 enter the collection 5 of microalgae concentrate, which is open to the atmosphere through the vapor outlet 11. The three-way valve 9 is open to communicate the zone 7 of the dried algae of the foam and the collection 5 of microalgae concentrate.

When the required concentration of microalgae in the collector 5 is reached, the three-way valve 9 is switched to such a position that the collector 5 of the microalgae concentrate is cut off from the foam drying zone 7 and is open to the nozzle 10, as a result of which the resulting concentrate is drained. Then, the valve 9 is turned to its original position and the cycle is repeated.

The present invention allows to increase the degree of concentration of microalgae by 3-5 times in comparison with the known one, due to more efficient formation and drying of foam on the horizontal flat lid and walls of the working tank.

Claims (1)

The invention The apparatus for the concentration of microalgae containing a tank with  1564181. " technological pipes, this collection of concentrate is placed outside scooped in the lower part of the container of the device-container above it and communicated with the zone for dispersing the gas, and collecting the foam through the vertical nickname of microalgae concentrate, about t -pipe for its removal, moreover, it is reconstructed by the fact that, in order to disperse it, the concentration of concentration of horizontal algae is concentrated, the capacity has a bent plate, the sectional area is horizontal horizontal lid for germs -yro is equal to the cross-sectional area metallization and formation at the top. Capacities, parts of the capacity of the foam drying zone,