A method for remediation of heavy metal soil based on environmental protection
A soil remediation and environmental protection technology, applied in the field of soil remediation, can solve the problems of inconvenient soil treatment, lack of technical means for soil plowing and leveling, etc., and achieve the effect of convenient installation, simple connection and convenient use
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specific Embodiment 1
[0077] Such as Figure 17 As shown, one part of the land to be repaired is sloped down and lowered. The total length of the land is 130 meters (120 meters for the flat part, 5 meters for the slope part, and 5 meters for the flat part). The 5-meter second track 2 and the 10-meter third track 3 are connected sequentially. When building, the broken line part of the second track 2 approximately corresponds to the slope, and the leveling harrow 7 and the plow 8 are adjusted by three pressure cylinders 9. Relative depth, to ensure the plowing depth of the slope part.
specific Embodiment 2
[0079] Such as Figure 18As shown, there is a pit in the plot to be repaired, and the pit is basically flat. The total length of the pit in the plot is 270 meters. In the flat part, the first track 1 can be used in combination according to the length of the plot. In the pit, use The second track 2 of 5 meters, the third track 3 of 20 meters, the first track 1 of 250 meters, and the second track 2 of 5 meters are connected in sequence. During construction, if the depth of the pit is relatively large, several second rails 2 can be used to connect in sequence, so that the second rail 2 goes down gently along the slope; if the length of the pit cannot completely match the third rail 3 and the first rail 1 The combined length can be spliced according to the multiple shorter third rails 3 manufactured; when plowing to the slope, the relative depth of the leveling harrow 7 and plow 8 can be adjusted through three pressure cylinders 9 to ensure the plowing at the pit , Leveling eff...
specific Embodiment 3
[0081] Such as Figure 19 As shown, the three telescopic rods 10 are all in contracted state, so that the leveling harrow 7, plowing plow 8, and leveling harrow 7 below the three pressure cylinders 9 are all in the G plot. When using it specifically:
[0082] 1: Use land leveling equipment to plow the soil back and forth on the G plot to the required looseness. After the G plot is processed, the three telescopic rods 10 are all in an extended state, so that the leveling under the three pressure cylinders 9 Rake 7, tillage plow 8, and leveling harrow 7 are all in the W plot, and the heavy metal adsorbent is applied in an amount of 100kg / mu; the land leveling equipment is used to process the G plot and the W plot according to the above method to level the soil, and then the film Coverage for 30 days;
[0083] 2: Build a catchment ditch around the heavy metal-contaminated soil, and lay an impermeable film at the bottom of the catchment ditch, and the catchment ditch is located ...
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