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Novel external electrolysis device for promoting anaerobic digestion to produce methane

An electrolysis equipment and anaerobic digestion technology, applied in biochemical equipment and methods, electrolysis process, electrolysis components, etc., can solve the problems of unstable methane output and low output, achieve good application prospects, small size, and promote degradation. Effect

Active Publication Date: 2014-02-05
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] Anaerobic digestion reactors often have problems such as unstable and low methane production in actual operation, which is caused by methanogens being very sensitive to the environment

Method used

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  • Novel external electrolysis device for promoting anaerobic digestion to produce methane

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Embodiment Construction

[0009] The specific operation steps will be further described below in conjunction with the accompanying drawings of the description.

[0010] From figure 1 It can be seen that the main structure of this new type of external electrolysis equipment for promoting anaerobic digestion and methane production is: iron plate electrodes 2 and carbon plate electrodes 3 are arranged in parallel and staggered arrangement in the shell 1 from bottom to top. The advantage of the parallel and staggered arrangement of each electrode plate is that the material in the equipment can flow back and forth in one direction, which can make the material fully contact with the electrodes and enhance the electrolysis effect. The iron plate electrode 2 is connected to the positive pole of the external power supply 4 , while the carbon plate electrode 3 is connected to the negative pole of the external power supply 4 . A feed pipe 6 connected to the feed pump 5 is provided below the outside of the casing...

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Abstract

The invention discloses a novel external electrolysis device for promoting anaerobic digestion to produce methane. The novel external electrolysis device structurally mainly comprises a charging tube, an electrode group, an external power supply and a discharging tube. The electrode group is arranged inside the device; the electrode group is composed of an iron plate and a carbon plate, the iron plate is used as an anode, and the carbon plate is used as a cathode. Each electrode plate is alternatively arranged in parallel. The external electrolysis device is connected with an anaerobic fermentation reactor by the charging tube and the discharging tube. The charging tube is provided with a charging pump. The discharging tube is provided with a discharging pump. An external power supply is started. The charging pump and the discharging pump are started, so that a material in an anaerobic digestion reactor enters the external electrolysis device through the charging tube, and is transported back to the anaerobic digestion reactor through the discharging tube after electrolytic reaction. The flow velocity of the charging pump is consistent with that of the discharging pump. The novel electrolysis device can be used for effectively promoting degradation of an organic substrate, stabilizing the activity of the produced methane and greatly improving the yield of the methane. Moreover, the device is small in size, convenient to install, suitable for upgrading and reconstructing of the existing anaerobic digestion reactor, and good in application prospect.

Description

technical field [0001] The invention relates to a device capable of promoting anaerobic digestion of organic solid waste to produce methane. Background technique [0002] Anaerobic digestion is one of the important ways to stabilize and reduce the amount of organic solid waste, and it is also one of the system technologies to realize the recycling of solid waste. The anaerobic digestion process can effectively treat solid waste with high organic matter content such as excess sludge, kitchen waste and straw. Anaerobic digestion not only realizes the reduction and harmlessness of solid waste, but also the methane produced in the digestion process has high economic value and can bring certain economic income to the treatment plant. In addition, the residue produced by anaerobic digestion is enriched with nutrients such as nitrogen and phosphorus in organic waste and active substances such as amino acids produced by microbial metabolism during the digestion process, and is a go...

Claims

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Application Information

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IPC IPC(8): C12M1/107C02F11/04C25B3/00
CPCY02E50/343C12M21/04C12M29/18C12M43/00Y02E50/30
Inventor 张耀斌全燮冯应鸿陈硕
Owner DALIAN UNIV OF TECH
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