SU1678776A1 - Device for microbiological transformation of organic substances under aerobic conditions - Google Patents

Abstract

The invention relates to wastewater treatment and the primary processing of bast fibers and can be used in the microbiological and food industry. The purpose of the invention is to increase the productivity of the device by increasing the specific surface area of the carrier to immobilize microorganisms and improve mass transfer in the system. The device consists of a reservoir 1, a gas distribution unit 2-4, a liquid inlet and outlet, a frame 5 with caprone cases. The gas-filled reservoir 1 is supplied with gas consumed by microorganisms through node 2. The treated liquid is removed through unit 4. The device can operate in semi-flowing mode. The invention allows to reduce capital and energy costs, as well as improve the performance of the device. 1 silt, J

Description

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The invention relates to wastewater treatment and the primary processing of bast fibers and can be used in the microbiological and food industry.

The purpose of the invention is to increase the productivity of the device by increasing the specific surface area of the carrier to immobilize microorganisms and improve mass transfer in the system.

The drawing shows a diagram of the device.

The device consists of a reservoir 1, gas distribution units 2, an inlet 3 and a discharge 4 of fluid containing the substrate and metabolites, and a frame 5 with nylon materials 6.

The device works as follows.

When operating in a batch mode, the tank 1 through the supply unit 3 is filled with a process liquid containing substrates, after which the gas consumed by microorganisms is fed through the gas distribution unit 2 during the transformation of organic compounds contained in the process liquid. At the end of the reaction, the treated fluid containing the transfer products (metabolites) is removed through the outlet unit 4.

When operating in semi-flowing mode (wastewater treatment, regeneration of the process fluid during flax hawse maceration), the supply of a solution of organic compounds, aeration and removal of the transformation products are carried out continuously. During aeration, the incoming liquid is partially mixed with the treated and additional enrichment of the treated solution with a suspension of microorganisms, which transform along with the microorganisms immobilized on the carrier.

The carrier for immobilization of microorganisms has a large specific surface area, which allows to significantly reduce the volume occupied by the filler, which leads to a decrease in capital costs. Kapron products promote efficient crushing of bubbles and efficient mass transfer in the gas-liquid-microorganism system, thereby increasing the efficiency of oxygen use, which leads to an increase in the productivity of the device and a reduction in energy consumption for aeration.

Claims (1)

An apparatus for microbiological transformation of organic compounds under aerobic conditions, comprising a reservoir for a process fluid, a framework in it with a carrier for immobilizing microorganisms, gas distribution, supply and drainage units, characterized in that by increasing the specific surface area of the carrier to immobilize microorganisms and improve the mass transfer in the system, the carrier for immobilizing microorganisms is performed Delay in the form of nylon, arranged horizontal layers above the gas distribution assembly, wherein the distance between the layers is 40-200 mm.