Dynamic micromixer

Abstract

The procedure for the fine volume-controlled blending of substrates in anaerobic reactors with flat bottoms, comprises surface-like blowing in of gas close to the reactor bottom over the entire horizontal cross-section area, and adjusting temperature of the gas for heating the reactor contents. The blowing in of the gas is distributed over sections, which completely cover the bottom of the reactor and which is alternatingly exposed to the gas in such a dynamically changing and controlled manner that at each point of volume of the reactor, a local micro-turbulence is caused. The procedure for the fine volume-controlled blending of substrates in anaerobic reactors with flat bottoms, comprises surface-like blowing in of gas close to the reactor bottom over the entire horizontal cross-section area, and adjusting temperature of the gas for heating the reactor contents. The blowing in of the gas is distributed over sections, which completely cover the bottom of the reactor and which is alternatingly exposed to the gas in such a dynamically changing and controlled manner that at each point of volume of the reactor, a local micro-turbulence is caused. The regulation of the sections for exposure to the gas takes place by a determination of the gas quantity through the particular sections in alternating time intervals. The regulation of the temporal changes takes place by several frequency-regulated gas compressor. The substrate feeding into the reactor takes place evenly over the top of the entire horizontal reactor cross-section area, in order to facilitate a plug flow of the substrate that is directed vertically downwards. Several reactors are inter-connected sequentially as a group in such a manner that the gas exposure of a reactor is increased by additionally using the gas quantity of another reactor in this reactor. A cooling process is undertaken in a permissible range for the regulation of the temperature of the gas.

Description

technical field [0001] The fields of application covered by this patent application relate to the mixing of the contents of large vessels to optimize biochemical operations in anaerobic processes, especially for the formation of biogas. Biogas formation processes of this type are increasingly being established and operated, which allow the biodecomposition of organic materials by forming biogas (mainly methane) while generating energy. This application relates to the purification of waste water decomposed from waste water-containing feedstocks to be combined with organic residues, such as the applicant's gas generation (Skjldgas)-FFF-system according to EP0998430 (see solid-fluid-fermentation process of EP1419995)) to anaerobic fermentation dedicated to the decomposition process of plants such as corn, rye, grass and the like, and other similar processes, which are often ensiled perennial as so-called NOWARO (renewable raw material) for biogas generation device. In the case...

AI Technical Summary

Problems solved by technology

[0028] n) Methane bacteria are sensitive to temperature changes. Therefore, when the high temperature > 50°C formed under the heating device (such as a heating tube) and the gas blown in will be unfavorable to them, or cause their death - this negative The effect is more obvious

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