Soil anammox bacterium gathering system simulating natural environment

Abstract

The invention discloses a soil anammox bacterium gathering system simulating a natural environment, comprising a water intake tank, a peristaltic pump, a time controller, a reactor main body, a spray head, an earth pillar, a disc with holes, a support, a water discharging pipe, a precipitation zone, a sludge discharging pipe, a packing layer, a plurality of sludge taking ports, circular holes of the disc and circular holes of the spray head, wherein the lower part of the reactor main body is provided with the support, the reactor main body is sequentially provided with the spray head, the earth pillar, the disc with holes, the packing layer and the precipitation zone from top to bottom, the bottom of the reactor main body is provided with the water discharging pipe and the sludge discharging pipe, the sludge taking ports are arranged on the side wall for placing the earth pillar on the reactor main body, the upper end of the spray head is sequentially connected with the peristaltic pump and the water intake tank, and the peristaltic pump is connected with the time controller. The soil anammox bacterium gathering system has the advantages that an earth layer with the corresponding depth is put in the earth pillar to establish the earth pillar simulating the natural environment so as to be beneficial to the gathering of anammox bacteria in soil; the time controlling assembly realizes the intermittent water intake of the reactor; and the gathering system completely simulates the original ecology and can gather the anammox bacteria in a soil ecosystem.

Description

technical field [0001] The invention relates to a soil anammox bacteria enrichment system simulating natural environment. Background technique [0002] Anaerobic ammonia oxidation (Anammox) refers to the process in which ammonia nitrogen reacts with nitrite nitrogen to generate nitrogen gas under anaerobic conditions. From the perspective of electron donor, anammox is an oxidation reaction of ammonia, similar to nitrification; but from the perspective of electron acceptor, anammox is a reduction reaction of nitrite, similar to reverse reaction. nitrification. That is to say, anaerobic ammonia oxidation can be regarded as both nitrification and denitrification. In the nitrogen cycle, both nitrification and denitrification are involved, which changes the traditional nitrification-denitrification nitrogen cycle mode. The discovery of anaerobic ammonium oxidation has added new content to the microbial nitrogen cycle. Anaerobic ammonium oxidation was first discovered in artifi...

AI Technical Summary

Problems solved by technology

In marine ecosystems, the contribution of anammox to the nitrogen cycle can reach 30-50%, but in soil ecosystems, the traditional soil nitrification-denitrification nitrogen cycle mode caused by the intervention of anammox reaction The changes in the soil nitrogen cycle and the contribution of each link in the soil nitrogen cycle have not been reported.

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