Stabilization medicament of lead-zinc waste rocks and tailings as well as preparation and application of stabilization medicament
A stabilization and tailings technology, which is applied in the field of contaminated soil remediation, can solve the problems of complex operability in the treatment process, lack of heat resistance of the product, and high volume expansion ratio of the product, so as to control the risk of secondary pollution without causing Effect of secondary pollution and reduction of dissolution rate
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Embodiment 1
[0033] The stabilizing agent of the present invention consists of powder and liquid. The powder is composed of the following components: quicklime, sodium bentonite, ammonium phosphate and sodium trithiosulfate. The solution consists of sodium dihydrogen phosphate and water.
[0034] In order to illustrate the practical application effect of the present invention, according to the treatment method and the ratio of the medicaments of the invention, the waste rock tailings in a certain lead-zinc mining area are treated and repaired. According to the detection results of the heavy metal content of waste rock tailings in this mining area, the average content of zinc (Zn) is 24200mg / kg; the average content of lead (Pb) is 22400mg / kg.
[0035] combine figure 1 , the method for processing the lead-zinc waste rock tailings by using the stabilizing agent prepared in the present embodiment is as follows:
[0036] (1) Use a vibrating screen to separate the crushed stones with a partic...
Embodiment 2
[0048]According to the detection results of the heavy metal content of waste rock tailings in this mining area, the average content of zinc (Zn) is 24200mg / kg; the average content of lead (Pb) is 22400mg / kg. The amount of powder added per 100Kg of waste rock tailings is 4Kg, and the amount of liquid agent added is 1L. The powder composition and its percentage by weight in the powder in the number 1# experimental group are quicklime 54%, kaolinite 18%, ammonium phosphate 20%, sodium trithiosulfate 4%; The percentage by weight in the solution is 4% sodium dihydrogen phosphate and 96% moisture. The powder composition and its percentage by weight in the powder in the number 2# experimental group are quicklime 54%, kaolinite 22%, ammonium phosphate 18%, sodium trithiosulfate 6%; The percentage by weight in the solution is 8% sodium dihydrogen phosphate and 92% moisture. The powder composition and its percentage by weight in the powder in the number 3# experimental group are quick...
Embodiment 3
[0052] According to the detection results of the heavy metal content of waste rock tailings in this mining area, the average content of zinc (Zn) is 24200mg / kg; the average content of lead (Pb) is 22400mg / kg. The amount of powder added per 100Kg of waste rock tailings is 4Kg, and the amount of liquid agent added is 1L. The powder composition and its percentage by weight in the powder in the number 1# experimental group are quicklime 55%, montmorillonite 22%, ammonium phosphate 15%, sodium trithiosulfate 8%, the liquid composition and its The percentage by weight in the solution is 4% sodium dihydrogen phosphate and 96% moisture. The powder composition and its percentage by weight in the powder in the number 2# experimental group are quicklime 54%, montmorillonite 22%, ammonium phosphate 18%, sodium trithiosulfate 6%, the liquid composition and its The percentage by weight in the solution is 8% sodium dihydrogen phosphate and 92% moisture. The powder composition and its perce...
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