Arsenic pollution repairing agent for saline-alkali soil
A technology for arsenic pollution and saline-alkali land, applied in the direction of organic fertilizers, fertilizer mixtures, chemical instruments and methods, etc., can solve the problems of changing soil physical and chemical properties, secondary pollution, etc., and achieve the effects of small environmental impact, abundant sources, and low material cost
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Embodiment 1
[0015] The arsenic pollution remediation agent for saline-alkali land comprises the following raw materials in parts by weight: 50 parts of cross-linked attapulgite; 50 parts of deformed starch; 30 parts of methyl methacrylate-styrene copolymer; 0.04 part of sodium dodecylsulfonate; 0.02 parts of potassium sulfate; 0.02 parts of urea; 65 parts of carbide slag; 0.5 parts of microbial mixed bacteria solution.
[0016] The cross-linked attapulgite is prepared by the following method: dissolve aluminum trichloride in water, titrate to pH=4 with NaOH aqueous solution to obtain an aluminum chloride solution, and reserve it for later use; disperse attapulgite in water, stir Evenly, the attapulgite dispersion liquid is obtained; add the prepared aluminum chloride solution into the attapulgite dispersion liquid, stir continuously until the mixed solution becomes turbid, let it stand still, obtain precipitation, filter, dry the precipitate, and pulverize into small granules to obtain cr...
Embodiment 2
[0019] The arsenic pollution restoration agent for saline-alkali land comprises the following raw materials in parts by weight: 55 parts of cross-linked attapulgite; 50 parts of deformed starch; 35 parts of methyl methacrylate-styrene copolymer; 0.07 part of sodium dodecylsulfonate; 0.03 parts of potassium sulfate; 0.03 parts of urea; 70 parts of carbide slag; 0.8 parts of microbial mixed bacteria solution.
[0020] The cross-linked attapulgite is prepared by the following method: dissolve aluminum trichloride in water, titrate to pH=4 with NaOH aqueous solution to obtain an aluminum chloride solution, and reserve it for later use; disperse attapulgite in water, stir Evenly, the attapulgite dispersion liquid is obtained; add the prepared aluminum chloride solution into the attapulgite dispersion liquid, stir continuously until the mixed solution becomes turbid, let it stand still, obtain precipitation, filter, dry the precipitate, and pulverize into small granules to obtain cr...
Embodiment 3
[0023] The arsenic pollution restoration agent for saline-alkali land comprises the following raw materials in parts by weight: 55 parts of cross-linked attapulgite; 60 parts of deformed starch; 39 parts of methyl methacrylate-styrene copolymer; 0.07 part of sodium dodecylsulfonate; 0.02 parts of potassium sulfate; 0.02 parts of urea; 80 parts of carbide slag; 0.8 parts of microbial mixed bacteria solution.
[0024] The cross-linked attapulgite is prepared by the following method: dissolve aluminum trichloride in water, titrate to pH=4 with NaOH aqueous solution to obtain an aluminum chloride solution, and reserve it for later use; disperse attapulgite in water, stir Evenly, the attapulgite dispersion liquid is obtained; add the prepared aluminum chloride solution into the attapulgite dispersion liquid, stir continuously until the mixed solution becomes turbid, let it stand still, obtain precipitation, filter, dry the precipitate, and pulverize into small granules to obtain cr...
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