A soil remediation bioreactor

Abstract

The invention discloses a soil remediation bioreactor, the structure of which comprises a feed belt, a repair box, a turbine, and a nutrient solution tank. Put the soil to be repaired into the primary screening tray for pre-screening, and screen out large particles such as stones to avoid damage to the mud mixing drum, and then let the screened soil enter the mud mixing drum to wait for mud mixing, and along the When the drum is mixed, the grinding tube rotates along the rotating direction of the drum due to inertia, and grinds the internal mud, which is conducive to the uniform mixing of the soil and the mixed solution. The finer mud is filtered out by the sieve, and it runs outside through the inner pad. The vibration generated under the machine is used for secondary mixing of the surface mud, and the connecting rod connects the grinding tubes two by two through the connecting port, so that the inner tank can maintain the same speed during operation, and avoid excessive grinding to cause powdering of soil particles.

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...

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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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