Soil remediation bioreactor

Abstract

The invention discloses a soil remediation bioreactor. The soil remediation bioreactor structurally comprises a feeding belt, a repairing box, a turbine and a nutrient solution tank, and the top of the feeding belt is attached to the side face of the repairing box. When soil remediation work is started, the feeding belt runs, to-be-remediated soil is put into a primary screening disc and is pre-screened, large-particle impurities such as stones are screened out to avoid damages to a mud mixing cylinder, the screened soil enters the mud mixing cylinder to wait for mud mixing work, edge out-filling treatment is carried out, during drum mixing, a grinding pipe rotates along the rotating direction of the drum due to inertia, internal mud is ground to facilitate uniform mixing of the soil and amixed liquid, fine mud is filtered out through screen holes, secondary mixing is conducted on the mud on the surface through vibration generated by an inner pad during external operation, grinding pipes are connected in pairs through connecting ports by means of connecting rods to keep the same rotating speed of an inner container during operation, so soil particle pulverization caused by excessive grinding is avoided.

Description

technical field [0001] The invention belongs to the field of bioreactors, in particular to a soil repair bioreactor. Background technique [0002] The soil remediation bioreactor is an instrument that mixes the contaminated soil and water into the reactor, usually placed on the spot, and uses microorganisms to absorb, degrade, and transform the pollutants in the reactor. The period is long. In the actual treatment process, it is necessary to mix and react the bacteria and soil fully by stirring and spraying to ensure that the treatment bacteria multiply to form a biofilm, and to further reduce the concentration of pollutants through cyclic treatment. Based on the above inventors' discovery, The existing ones mainly have the following deficiencies, such as: [0003] Due to the long treatment period and generally placed on the spot, when the reactor is internally mixed with drums, grinds and circulates to filter the contaminated soil, although the excessively fine soil is con...

AI Technical Summary

Problems solved by technology

[0003] Due to the long treatment period and generally placed on the spot, when the reactor mixes and grinds the polluted soil in an internal mixing cycle, although the excessively fine soil is conducive to the microbial reaction, the colloidal particles inside the soil are easily infiltrated in the fine soil Water affects leaching, which will easily lead to the loss of nutrients to the underground layer after the treatment is completed, resulting in acidification of the underground layer or pollution of underground rivers

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