Composite moisturizing dust suppressant and preparation method
A dust suppressant and composite technology, applied in the field of environmental pollution control, can solve problems that cannot be effectively solved, coverings and environmental pollution, unsuitable for road dust suppression, etc., and achieve low cost, easy biodegradation, and not easy to break Effect
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Embodiment 1
[0019] The composite moisturizing and dust suppressing agent in this embodiment is prepared by the following method:
[0020] Weigh 0.075% of sodium polyacrylate, 10% of sodium silicate, 1.5% of polyethylene glycol and 0.1% of alkyl glycosides by volume percentage respectively for use;
[0021] Mix 10% of sodium silicate in water uniformly, then add 0.075% of sodium polyacrylate, 1.7% of polyethylene glycol and 0.1% of alkyl glycoside, and slowly stir uniformly to obtain a composite moisturizing and dust suppressant stock solution. Spray the same amount of stock solution and water on the surface of the dust, and after drying, the consolidation layer formed on the surface will be like figure 1 As shown in (a)-(b).
[0022] by figure 1 It can be seen that the surface of the dust sample sprayed with the dust suppressant forms a consolidation layer, the thickness of the consolidation layer is about 1-2mm; while the surface of the dust sample sprayed with water has no consolidation layer,...
Embodiment 2
[0024] The composite moisturizing and dust suppressing agent in this embodiment is prepared by the following method:
[0025] Weigh 0.08% of sodium polyacrylate, 15% of sodium silicate, 2% of polyethylene glycol and 0.15% of alkyl glycoside according to mass percentages for use;
[0026] Mix 15% sodium silicate in water uniformly, then add 0.08% sodium polyacrylate, 2% polyethylene glycol and 0.15% alkyl glycoside, and slowly stir uniformly to obtain a composite moisturizing and dust suppressant stock solution. Spray the same amount of stock solution and water on the surface of the dust, and process the dried dust sample by scanning electron microscopy. The result is as follows figure 2 As shown in (a)-(b).
[0027] figure 2 (a) The dust particles treated with the dust suppressant solution are bound together in the form of large particles, and figure 2 (b) The sample dust treated with reclaimed water is in a dispersed state in small particles, indicating that the dust suppressa...
Embodiment 3
[0029] The composite moisturizing and dust suppressing agent in this embodiment is prepared by the following method:
[0030] Weigh 0.085% of sodium polyacrylate, 20% of sodium silicate, 2.3% of polyethylene glycol and 0.2% of alkyl glycoside according to mass percentages for use;
[0031] Mix 20% sodium silicate in water uniformly, then add 0.085% sodium polyacrylate, 2.3% polyethylene glycol and 0.2% alkyl glycoside, and slowly stir uniformly to obtain the composite moisturizing and dust suppressant stock solution.
[0032] The composite moisturizing and dust suppressant stock solution prepared in this example was subjected to a dust reduction experiment (the results are shown in Table 1), and the dust reduction rate for total dust reached 96.98%, and the dust reduction rate for respirable dust reached 80.00%. Comparing the results of spraying water, it can be seen that its dust reduction effect is obvious, and it is suitable for road dust suppression.
[0033] Table 1 Dust removal ...
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Abstract
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