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Remediation fertilizer for polychlorinated biphenyls contaminated soil

A technology that pollutes soil and polychlorinated biphenyls, applied in the field of fertilizers, can solve problems such as immaturity, and achieve the effect of enhanced ability, slow effect, and rich nutrition

Inactive Publication Date: 2017-08-25
ANHUI LIUGUO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, large-scale actual PCB-contaminated site remediation projects are still immature. Due to economic and environmental considerations, most remediation technologies are limited to laboratories, and large-scale investment in actual remediation projects is still immature.

Method used

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  • Remediation fertilizer for polychlorinated biphenyls contaminated soil
  • Remediation fertilizer for polychlorinated biphenyls contaminated soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A repairing fertilizer for polychlorinated biphenyl contaminated soil, characterized in that it consists of the following raw materials in parts by weight: urea 30kg, urea phosphate 20kg, potassium dihydrogen phosphate 20kg, potassium sulfate 15kg, potassium chloride 15kg, Sodium bicarbonate 12kg, sodium silicate 10kg, sodium humate 8kg, biogas slurry 20kg, kelp powder 12kg, composite shell powder 18kg, modified bagasse 10kg, plant extract 12kg, modified ferrous sulfate 10kg.

[0025] The composite shell powder is made by mixing peanut shells, walnut shells and nut shells, crushing them through a 20-mesh sieve to obtain a mixed material, soaking it in castor oil, stirring it in a water bath at 85°C for 25 minutes, removing it, and adding the mixed material 0.35 times of starch, soaked in acrylic acid at 8°C, stirred with a magnetic stirrer for 1 hour, filtered, dried, and pulverized.

[0026] The nut shell refers to almond core shell, white apricot core shell, macadamia...

Embodiment 2

[0037] A repairing fertilizer for polychlorinated biphenyl contaminated soil, characterized in that it consists of the following raw materials in parts by weight: 50 kg of urea, 40 kg of urea phosphate, 30 kg of potassium dihydrogen phosphate, 20 kg of potassium sulfate, 20 kg of potassium chloride, Sodium bicarbonate 18kg, sodium silicate 15kg, sodium humate 12kg, biogas slurry 30kg, kelp powder 14kg, composite shell powder 22kg, modified bagasse 20kg, plant extract 18kg, modified ferrous sulfate 20kg.

[0038] The composite shell powder is mixed with peanut shells, walnut shells and nut shells, crushed through a 40-mesh sieve to obtain a mixed material, soaked in castor oil, stirred in a water bath at 90°C for 30 minutes, removed, and added to the mixed material 0.4 times of starch, soaked in acrylic acid at 10°C, stirred with a magnetic stirrer for 1.3h, filtered, dried, and pulverized.

[0039] The nut shell refers to almond core shell, white apricot core shell, macadamia ...

Embodiment 3

[0050] A repairing fertilizer for polychlorinated biphenyl contaminated soil, characterized in that it consists of the following raw materials in parts by weight: urea 40kg, urea phosphate 30kg, potassium dihydrogen phosphate 25kg, potassium sulfate 18kg, potassium chloride 18kg, Sodium bicarbonate 14kg, sodium silicate 13kg, sodium humate 10kg, biogas slurry 25kg, kelp powder 13kg, composite shell powder 20kg, modified bagasse 15kg, plant extract 15kg, modified ferrous sulfate 15kg.

[0051] The composite shell powder is mixed with peanut shells, walnut shells and nut shells, crushed through a 30-mesh sieve to obtain a mixed material, soaked in castor oil, stirred in a water bath at 88°C for 28 minutes, removed, and added to the mixed material 0.38 times of starch, soaked in acrylic acid at 9°C, stirred with a magnetic stirrer for 1.2h, filtered, dried, and pulverized.

[0052] The nut shell refers to almond core shell, white apricot core shell, macadamia nut shell or other n...

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Abstract

The invention relates to the technical field of fertilizer, in particular to a remediation fertilizer used for polychlorinated biphenyls contaminated soil. The fertilizer is prepared from, by weight, 30-50 parts of urea, 20-40 parts of urea phosphate, 20-30 parts of monopotassium phosphate, 15-20 parts of potassium sulfate, 15-20 parts of potassium chloride, 12-18 parts of sodium bicarbonate, 10-15 parts of sodium silicate, 8-12 parts of sodium humate, 20-30 parts of biogas liquid, 12-14 parts of kelp powder, 18-22 parts of compound shell powder, 10-20 parts of modified bagasse, 12-18 parts of plant extracts and 10-20 parts of modified ferrous sulfate. The fertilizer is rich in nutrients and contains various macroelements and micronutrient elements which are needed by crops, the total nutrient content of nitrogen, phosphorus and potassium is equal to or greater than 52.8%, and the fertilizer is rich in various nutrients, the polychlorinated biphenyls removal rate for the soil reaches 99.8% or above, taking peanuts as an example, the yield is increased by 7.25-10.58%, and the double benefits of high yield and organic matter removal are achieved.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a fertilizer for repairing polychlorinated biphenyl polluted soil. Background technique [0002] Polychlorinated biphenyls, PCBs, are a group of chlorinated aromatic hydrocarbon compounds with 209 homologues formed by replacing 1 to 10 chlorine atoms at different positions with hydrogen on biphenyl molecules through chemical catalytic reactions. PCBs have Excellent physical and chemical properties such as thermodynamic stability, chemical inertness, non-flammability, high resistivity, etc., have been widely used in the field of industrial production, and later found that it has persistence, bioaccumulation, long-distance migration and obvious biological toxicity, etc. characteristics, can cause a great threat to organisms and human health through the transmission of the food chain, has been banned and included in the first list of controlled pollutants in the Stockholm Conven...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05B15/00C05C9/00C05D1/02C05D9/00C05D9/02C05F5/002C05F5/006C05F9/04C05F11/00C05F11/02
Inventor 沈维婷雷云杨豹嶂郑之银彭克荣杨小龙
Owner ANHUI LIUGUO CHEM CO LTD