A felt pad for improving coastal saline soil and its preparation method and method for improving coastal saline soil
A technology of saline soil and felt pads, which is applied in the direction of site preparation methods, chemical instruments and methods, and soil lifting machinery, etc., can solve the problems of difficult layout of pit side walls, easy downward flow and accumulation, and uneven distribution of materials, etc., to achieve Excellent salt-resistance and anti-reverse effect, long-lasting salt-resistance and anti-reverse effect, and effect of increasing fluffiness
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Embodiment 1
[0037] A felt pad used for improvement of coastal saline soil, 100kg of rock wool fiber (fiber length: 1-8mm), 10kg of sawdust, 10kg of corn stalks, and 15kg of zeolite powder.
[0038] The preparation method of the above-mentioned felt pad for coastal saline soil improvement is as follows:
[0039] (1) Sawdust is crushed and passed through a 5-mesh sieve to obtain debris, corn stalks are crushed into fragments of 0.5-1 cm, and the sawdust fragments and corn stalk fragments are evenly mixed with zeolite powder to obtain a mixture;
[0040] (2) Inject water into the hydraulic pulper, adjust the pH to 3 with a sulfuric acid solution with a concentration of 40wt%, drop into rock wool fibers, beat and disperse for 5min at a speed of 1000rpm, and the dispersed slurry is discharged into the slurry tank;
[0041] (3) Adding the sulfuric acid solution that pH is 3 in the slurry mixing tank is diluted the slurry to obtain the fiber slurry, so that the concentration of the fiber slurry ...
Embodiment 2
[0047] A felt pad for improvement of seaside saline soil, 120 kg of slag cotton fiber (fiber length: 1-5 mm), 15 kg of sawdust, 5 kg of soybean straw, and 10 kg of zeolite powder.
[0048] The preparation method of the above-mentioned felt pad for coastal saline soil improvement is as follows:
[0049] (1) Sawdust is crushed and passed through a 4-mesh sieve to obtain debris, soybean stalks are crushed into fragments of 0.5-1 cm, and the sawdust fragments and soybean stalk fragments are evenly mixed with zeolite powder to obtain a mixture;
[0050] (2) Inject water into the hydraulic pulper, adjust the pH to 2.5 with a sulfuric acid solution with a concentration of 70wt%, drop into slag cotton fiber, beat and disperse for 10min at a speed of 800rpm, and the dispersed slurry is discharged into the pulping tank;
[0051] (3) Adding the sulfuric acid solution that pH is 2.5 to dilute the slurry to obtain the fiber slurry in the slurry mixing tank, so that the concentration of the...
Embodiment 3
[0057] A felt pad used for seaside saline soil improvement, 100kg of rock wool fibers (fiber length 1-8mm), 5kg of sawdust, 20kg of corn stalks, and 15kg of zeolite powder.
[0058] The preparation method of the above-mentioned felt pad for coastal saline soil improvement is as follows:
[0059] (1) Sawdust is crushed and passed through a 5-mesh sieve to obtain debris, corn stalks are crushed into fragments of 0.5-1 cm, and the sawdust fragments and corn stalk fragments are evenly mixed with zeolite powder to obtain a mixture;
[0060] (2) Inject water into the hydropulper, adjust the pH to 2.8 with a sulfuric acid solution with a concentration of 40wt%, drop into rock wool fibers, beat and disperse for 8min at a speed of 1000rpm, and the dispersed slurry is discharged into the slurry tank;
[0061] (3) Adding the sulfuric acid solution that pH is 2.8 to dilute the slurry to obtain the fiber slurry in the slurry mixing tank, so that the concentration of the fiber slurry is 3wt...
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