Method for restoring heavy metal polluted soil in mine field
A technology of polluted soil and heavy metals, applied in the restoration of polluted soil, etc., can solve many problems such as
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[0011] Basic material preparation:
[0012] A) Red mud (Red Mud) was purchased from Shandong Aluminum Co., Ltd., and passed through a 100-mesh sieve before use.
[0013] B) Bone Char (Bone Char) was purchased from Shandong Tengzhou Chemical Factory, and passed through a 50-mesh sieve before use.
[0014] C) Contaminated soil: Collected from 0-20cm of heavy metal-contaminated farmland caused by the collapse of the tail sand dam along the Dahuan River in Huanjiang County, Guangxi, with a lead content of 816.87mg·kg -1 , zinc content 614.20mg·kg -1 , pH=3.66. Air-dry after picking, pass through a 2mm sieve for later use.
[0015] D) The test container is a plastic cup that can hold 100g of soil
[0016] Establishment of training system:
[0017] According to the different addition methods of red mud and bone char, there are 4 treatments:
[0018] (1) Treatment without adding red mud and bone char (CK);
[0019] (2) 2% red mud (mass ratio) addition treatment (2RM);
[0020...
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