Experimental device and method for restoring polluted soil through microorganisms
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A technology of microbial remediation and experimental equipment, applied in the restoration of polluted soil, etc., can solve the problems of lack of experimental instruments and evaluation methods, large differences in effects, and large temperature difference between morning and evening, so as to improve the efficiency of microbial remediation and equipment. Maintenance simple effect
Inactive Publication Date: 2018-11-06
BC P INC CHINA NAT PETROLEUM CORP +1
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However, some problems that are prone to occur during the small test include: the laboratory conditions are very different from the on-site environmental conditions (temperature difference between morning and evening, humidity); the laboratory flower pot experiment and the on-site restoration operation effect are quite different; there are many microbial restoration bacteria on the market. Agents and stimulants (soil conditioners), but due to the lack of standardized experimental instruments and evaluation methods, they cannot be evaluated and compared with the same standard
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Embodiment 1
[0045] This embodiment provides a kind of experimental device for repairing polluted soil, its structure is as follows figure 1 As shown, the experimental setup includes:
[0046] Bacteria stimulant adding tank 2, soil shearing tank 1, heating belt 3, agitator 4, water adding equipment 5; wherein,
[0047] The soil shearing tank 1 is arranged on the upper part of the bacterial agent stimulant adding tank 2;
[0048] The outer surface of the soil shear groove 1 is wrapped with a heating belt 3;
[0049] The outer surface of the bacterial agent stimulant adding tank 2 is wrapped with a heating belt 3;
[0050] The bottom of the soil shearing tank 1 is provided with a wire mesh filter disc, and its structure is as follows: figure 2 As shown, the screen filter disc has a pore size of 200 μm.
[0051] When the above-mentioned experimental device of the present embodiment is specifically used for remediating polluted soil, proceed according to the following steps:
[0052] Add t...
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Abstract
The invention provides an experimental device and method for restoring polluted soil through microorganisms. The experimental device comprises a bactericide adding groove, a soil shearing groove, heating belts, stirring equipment and water adding equipment. The soil shearing groove is formed in the upper portion of the bactericide stimulant adding groove. The outer surface of the soil shearing groove is wrapped with one heating belt. The outer surface of the bactericide stimulant adding groove is wrapped with the other heating belt. The water adding equipment is used for beating liquid in thebottom bactericide stimulant adding groove into the soil shearing device from bottom to top. The stirring equipment is used for increasing the porosity of soil in a soil shearing groove. A silk screenfiltering disc is arranged on the bottom of the soil shearing groove. The invention further provides a method for utilizing the device to complete restoring of the polluted soil through the microorganisms. The experimental device and method for restoring the polluted soil through the microorganisms can provide appropriate bacteria temperature and soil environment.
Description
technical field [0001] The invention relates to an experimental device, in particular to an experimental device for microbial remediation of polluted soil, and belongs to the technical field of soil remediation. Background technique [0002] Nowadays, soil pollution has become a worldwide problem. Soil pollutants can be roughly divided into two categories: inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acids, alkalis, heavy metals, salts, compounds of radioactive elements cesium and strontium, compounds containing arsenic, selenium, fluorine, etc.; organic pollutants mainly include organic pesticides, phenols, cyanides, petroleum, synthetic detergents, etc. chemicals, 3,4-benzopyrene, and harmful microorganisms brought by urban sewage, sludge, and manure. When there are too many harmful substances in the soil, which exceeds the self-purification capacity of the soil, the composition, structure and function of the soil will change, the micro...
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