Simulation test device and simulation test method for in-situ chemical and biological remediation of underground water
A bioremediation and simulation test technology, which is applied in testing water, material inspection products, general water supply saving, etc., can solve the problems of unclear influence of the migration, transformation and degradation rules of organic pollutants, limited treatment scope, and high treatment costs. , to achieve the effect of high promotion and use value, low test cost and strong process controllability
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Embodiment 1
[0044] Such as Figure 1~5 As shown, a kind of groundwater in-situ chemical and bioremediation simulation test device of the present invention mainly includes rectangular seepage tank 6, water inlet buffer tank 4, water outlet buffer tank 14, water supply device and liquid recovery bottle 20, wherein, water supply device consists of The sequentially connected nitrogen bag 1, liquid storage bottle 3 and peristaltic pump 2 are composed; the water supply device is connected to the bottom of the water inlet buffer tank 4 through a water delivery hose, and the water inlet side and the water outlet side of the percolation tank 6 are respectively passed through a porous cloth water partition 7 It is connected with the water inlet buffer tank 4 and the water outlet buffer tank 14, and the outer sides of the water outlet buffer tank 14 are respectively provided with drain holes with valves at different heights (i.e. figure 1 drain hole and valve 15 in the middle), the drain hole is con...
Embodiment 2
[0052] A kind of groundwater in-situ chemical and bioremediation simulation test device that utilizes embodiment 1 to carry out, the simulated test method of the in-situ chemical-biological combined repair process of chlorinated hydrocarbon polluted groundwater under simulated anaerobic conditions is as follows:
[0053] During the test, first open the flanged plexiglass top plate 8-2 on the top of the seepage tank 6, and put coarse sand into the tank body as the aquifer medium. It needs to be paved and compacted. The filling height of the aquifer is 25cm, and the surface of the aquifer medium is filled with 6cm thick clay as an air-entrained zone to prevent the volatilization of chlorinated hydrocarbon pollutants. While filling the aquifer medium, the injection well pipe 10 and the monitoring well pipe 11 are also loaded into the tank body from the top of the tank according to certain longitudinal and transverse layouts. There are 5 injection well pipes in total, which are e...
Embodiment 3
[0058] Another kind of groundwater in-situ chemical and bioremediation simulation test device that utilizes embodiment 1 to carry out, the simulated test method of the in-situ chemical-biological joint remediation process of chlorinated hydrocarbon polluted groundwater under simulated anaerobic conditions, basically with embodiment 2 Same, except that:
[0059]Every 2cm high coarse sand needs to be paved and compacted. The filling height of the aquifer is 15cm, and the upper surface of the aquifer medium is filled with 2cm thick clay as the aerated zone; there are 2 injection well pipes, the distance between the pipes is 9cm, the bottom of the pipe is 5cm from the bottom of the seepage tank, and 10cm from the water inlet of the tank; There are 3 rows of monitoring wells in the seepage tank, of which 1 row of monitoring wells is upstream of the injection well, 15cm away from the injection well, and the other 2 rows of monitoring wells are arranged downstream of the injection we...
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