Biological waste anaerobic fermentation device

Abstract

The invention discloses a biological waste anaerobic fermentation device. A material component detection device is installed on a material conveying pipe or a fresh material tank of an anaerobic digestion biogas device so that material failure caused by heavy metal pollutants in an anaerobic digestion tank is prevented and anaerobic bacterium death and whole material failure caused by toxic substances such as antibiotics and pesticide killing anaerobic bacteria in the anaerobic digestion tank is prevented. The material component detection device is arranged on a material discharge device of the anaerobic digestion tank so that it is prevented that biogas slurry and biogas residue with heavy metal content exceeding standard or with an incomplete anaerobic fermentation degree follow into the farmland. An examination pool with the volume greater than the loading capacity of a biological waste clearance vehicle is arranged and fresh materials are treated by the examination pool before entering into the anaerobic digestion tank so that a poisonous and harmful substance pollution scope is shortened and it is avoided that poisonous and harmful substances are found after entering into the anaerobic digestion pool and causing failure of the whole materials in the anaerobic digestion pool.

Description

1. Technical field [0001] The invention belongs to the field of B09 solid waste treatment. 2. Technical background [0002] The composition of domestic waste is complex and various, but it can be divided into two categories: biological waste and non-biological waste. Non-biological waste is plastic, metal, paper, glass, ceramics, etc., which account for less than half of the waste and more than half Most of them are leftovers, vegetable leaves, excrement, grass branches and leaves and other biological waste. [0003] Garbage classification is the process of classifying domestic waste generation, delivery and removal to form classified waste. Anaerobic fermentation of biological waste can generate biogas and biogas residue. It is not a problem to use biogas as a clean energy source. The problem is that biogas residue is originally a high-quality organic fertilizer but cannot be used in agricultural production. There are many and complicated people involved in the cleaning p...

AI Technical Summary

Problems solved by technology

Anaerobic fermentation of biological waste can generate biogas and biogas residue. It is not a problem to use biogas as a clean energy source. The problem is that biogas residue is originally a high-quality organic fertilizer but cannot be used in agricultural production. There are many and complicated personnel involved in the cleaning process, and the risk of toxic and harmful substances being mixed into biological waste is high

Mixing antibiotics, washing clothes, pesticides, etc. will poison or even completely kill anaerobic bacteria, slow down the anaerobic reaction, take a long time to complete the anaerobic reaction, or even stop anaerobic fermentation, resulting in a dead pool that makes the whole pool of raw materials scrapped; mixing heavy metals will produce The biogas slurry and residue cannot be fertilized on the farmland due to the heavy metal content, and the raw materials of the whole pond are also scrapped.

Because the organic fertilizer produced by biological waste contains toxic and harmful substances, especially heavy metals exceeding the standard, a large area of ​​farmland has been polluted. Many places have banned the use of organic fertilizer produced by domestic waste to fertilize farmland.

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