Organic waste dry-type anaerobic fermentation device and technology

Abstract

The invention provides an organic waste dry-type anaerobic fermentation device and a technology, relating to an organic waste treatment device, and simultaneously relating to the technology for treating organic waste by utilizing the device. The invention is a plug flow horizontal type fermentation device which is constituted by a feed inlet, a discharge hole and a stirring device which penetrates through the whole tank body longitudinally; the stirring device is connected with a plurality of stirring arms; the stirring device is electrically connected with the control device; the material inlet of the horizontal fermentation device is provided with a forced feeding device which is electrically connected with the control device; the horizontal fermentation device is provided with a heat exchange device; the temperature measuring device is arranged in the horizontal fermentation device and is electrically connected with the control device; the control device is electrically connected with a control valve and a circulating pump; a biogas fluid reflux spraying device and a temperature control and heat preservation device are arranged on the outer wall of the horizontal fermentation device; and the pH value and oxidation-reduction potential and the moisture monitoring device are arranged in the horizontal fermentation device through a probe. The technology and device in the invention is scientific, reasonable and practical.

Description

technical field [0001] The invention relates to an organic waste treatment device, and also relates to a process for using the device to treat organic waste. Background technique [0002] Organic waste is precisely biodegradable waste, which can be divided into four categories according to its sources: primary production waste, secondary production waste, industrial and sideline organic waste, and human domestic waste. Anaerobic fermentation refers to the biodegradation of organic matter to generate CH under anaerobic conditions, relying on the joint action of facultative bacteria and obligate bacteria and other microorganisms. 4 and CO 2 the process of. The anaerobic fermentation process for organic waste treatment has been applied both at home and abroad, and it is relatively mature abroad. Statistics show that the output of anaerobic digested biogas in Europe is 1.5×107m 3 / d, at the same time, CO 2 The emission is small, and the fermented biogas residue and biogas s...

AI Technical Summary

Problems solved by technology

In addition, due to the high solid content of the materials in the dry anaerobic fermentation system, poor fluidity, and poor heat transfer between materials, how to ensure that the temperature of the materials in the entire fermentation system remains consistent and constant has become a dry anaerobic fermentation system. An important condition for the operation control of oxygen fermentation system

The currently developed anaerobic fermentation process of organic waste still has the following problems: the process control conditions are complex, the facilities required for fermentation are too large, which is not conducive to management; a certain amount of biogas residue and biogas slurry are produced, and supporting treatment facilities are required; energy consumption High, high operating costs, not conducive to the realization of engineering, scale and marketization

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