Lipophilic controlled release fertilizer for bioremediation of oil pollution environment and preparation method thereof
A bioremediation and slow-release fertilizer technology, which is applied to ammonium salt fertilizers, urea compound fertilizers, fertilizer mixtures, etc., can solve problems such as refractory degradation, nutrient loss, and slowdown of petroleum hydrocarbon biodegradation process, and achieve easy degradation and no secondary The effect of secondary pollution
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[0030] Example 1
[0031] Weigh 1000g of ammonium nitrate with a diameter of 1mm, place it in a drum coating machine, then weigh 167g of calcium dihydrogen phosphate, 3.0g of copper sulfate, ferrous sulfate, zinc sulfate, manganese sulfate, and ammonium molybdate at 1:1: The trace elements are mixed in a ratio of 1:1:0.5, 250g of diatomaceous earth with a particle size of 80-200 mesh, after mixing, place in the feeding box of the coating machine, and then weigh 100g of polyvinyl alcohol to prepare a concentration of 15 % Aqueous solution, pour it into the upper tank of the coating machine. Set the rotation speed to 500rpm and the temperature to 90°C, start the coating machine and air compressor, after the polyvinyl alcohol is atomized by the compressed air, it is sprayed on the surface of the ammonium nitrate particles. At the same time, continue to sprinkle calcium dihydrogen phosphate, diatomaceous earth and trace elements to coat the surface of the nitrogen fertilizer particles...
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[0032] Example 2
[0033] Weigh 1000g of urea with a granular diameter of about 3mm and place it in a drum coating machine. Then weigh 231g of calcium dihydrogen phosphate, 5.4g of copper sulfate, ferrous sulfate, zinc sulfate, manganese sulfate, and ammonium molybdate according to 1: The trace elements obtained by mixing 1:1:1:0.5 ratio and 154g of kaolin with a particle size of 80-200 mesh, after mixing uniformly, place in a feeding box, and then weigh 53g of polyvinyl alcohol to prepare an aqueous solution with a concentration of 15%. Pour into the upper slot of the coating machine. Set the rotation speed to 250 rpm and the temperature to 70°C, start the coating machine and the air compressor, and spray the polyvinyl alcohol on the surface of the ammonium nitrate particles after being atomized by the compressed air. At the same time, continuously sprinkle calcium dihydrogen phosphate, kaolin and trace elements to coat the surface of the nitrogen fertilizer particles. After the ...
Example Embodiment
[0034] Example 3
[0035]Weigh 1000g of granular ammonium nitrate with a diameter of 5mm and place it in a drum coating machine, then weigh 286g of calcium dihydrogen phosphate, 7g of copper sulfate, ferrous sulfate, zinc sulfate, manganese sulfate, and ammonium molybdate in a ratio of 1:1 :1:1:0.5 ratio of trace elements and 72g of talc powder with a particle size of 80-200 mesh, after mixing uniformly, place in the feeding box of the coating machine, and then weigh 22.5g of polyvinyl alcohol to prepare a concentration of Pour the 15% aqueous solution into the upper tank. Set the rotation speed to 100 rpm and the temperature to 50° C., start the coater and air compressor, the polyvinyl alcohol is atomized by the compressed air and sprayed on the surface of the ammonium nitrate particles. At the same time, continue to sprinkle calcium dihydrogen phosphate, talcum powder and trace elements to coat the surface of the nitrogen fertilizer particles. After the mixture is sprayed, conti...
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