SU939541A1 - Apparatus for cultivating microorganisms - Google Patents

Description

(5) L APPARATUS FOR CULTIVATION OF MICROORGANISMS

one

The invention relates to the microbiological industry, in particular to apparatus for growing microorganisms.

A known apparatus for growing microorganisms, comprising an annular container with a lid, heat exchangers and turbines for mixing and aeration, foam concentration and extinguishing chambers and tubes for supplying the nutrient medium and extracting the concentrate and clarified fluid flj.

The known apparatus has an insufficiently high specific producer-15 noet.

The purpose of the invention is to increase the specific productivity of the apparatus.

To achieve this goal, in the proposed apparatus, containing a container with a lid, 20 heat exchangers located in it and turbines for mixing and aeration, foam concentration and defoaming chambers and

The nozzles for feeding the nutrient medium and withdrawing the concentrate and clarified liquid, the tank and the foam concentrating chamber are divided by partitions into separate isolated sections, each section of the foam concentrating chamber communicating with its corresponding section of the tank and connected to a pipeline with a row of the located section for recycling clarified liquid.

FIG. 1 schematically shows an apparatus, a vertical section, on (Jwr. 2 - section A-A in Fig. 1.

Claims (1)

The apparatus is an annular tank 1 with a lid 2, heat exchangers 3 and turbines k for mixing and aerating it, and a foam 5 concentrating chamber and defoaming expander 6. The tank 1 is equipped with nozzles 7, 8 and 9 for supplying the nutrient medium, withdrawing the concentrate to remove the clarified liquid. The container 1 and the foam concentrating chamber 5 are divided by partitions 10 into separate isolated sections, each section of the foam concentrating chamber 5 communicating with the corresponding section of the container 1 and connected by a pipe 11 to a number of the located section of the container 1. Each section of the chamber 5 concentrating Foam is formed by two overlapping bottoms 12 and 13. Inside the chamber, 6 defoamers, an antifoam H is installed. The device is equipped with a drive 15 turbines k. When using the central part of the tank 1 as an additional volume for growing mic organisms or adding substrate to it, it is connected to the foam concentrating chamber 5 through the opening 16. To remove the suspension of microorganisms from this part of the tank 1, a branch pipe 17 is used. for self-priming turbines t, the output ends of pipelines 11, communicating the section of the foam concentration chamber 5 with the tank section 1 corresponding to it, it is advisable to place the sucked liquid in that zone bin k. The nozzle 18 was started to remove the exhaust gas from the apparatus. The apparatus operates as follows. The mixing and aeration of the medium is carried out with turbines k. The temperature is maintained at the desired level using heat exchangers 3. A gas-saturated slurry containing microorganisms is poured over the edge of the bottom 12 into the foam concentrating chamber 5 section in the direction of arrow e (Fig. 1), thus separating the gas-saturated slurry onto the foam containing the main part of microorganisms, and the bleached liquid. As the foam moves in the sections of the concentration chamber 5 in the direction of the arrow d, it is dried out by draining the liquid, which collects in the lower part of the concentration chamber 5 of the concentration 1 and is discharged from them through the pipe 11 into the adjacent section of the tank 1. The dried concentrated foam enters defoaming chamber 6, where it is destroyed by antifoaming agent I. The gas produced at the same time is discharged through pipe 18 (arrow c), and the microorganism concentrate is discharged through pipe 8 or enters the additional container in the central part of the tank 1 for the finalization of the substrate. The clarified liquid from each section of the concentration chamber 5 is fed through the pipelines 11 into the suction zone of the turbine and the tank 1 section located next to it, and the clarified liquid from the first section along the process line is discharged from the apparatus through the pipe 9. When an additional mixing device is installed in the central part of the tank 1, this part of the tank can be used as an additional section for growing microorganisms or upgrading the residual substrate. The resulting foam is discharged in the direction indicated by the arrow through the opening 16 due to the release of the exhaust air from the additional tank and its entry into the defoaming chamber 6 and through it into the atmosphere or to any gas treatment facility. In comparison with the known, the specific productivity of the proposed apparatus increases by 12% and reaches tons per day, which exceeds the specific productivity of apparatus B-50 by 25. and aeration, foam concentrating and defoaming chambers and nozzles for feeding the nutrient medium and withdrawing the concentrate and clarified liquid, characterized in that, in order to increase the specific The apparatus, the container and the foam concentration chamber are divided by partitions into separate insulated sections, each section of the foam concentration chamber communicating with its corresponding section of the container and connected with a pipeline to a series of located section for recycling the clarified liquid. Sources of information taken into account in the examination 1. Copyright, certificate of the USSR No. 702718, cl. From 12 to 1/10, 1975.