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Fertilizer for repairing hexachlorobenzene pollution

A technology for hexachlorobenzene and fertilizer is applied in the field of hexachlorobenzene-contaminated fertilizers, which can solve the problems of poor engineering feasibility, high operating costs, harsh reaction conditions, etc., and achieves high removal rate of hexachlorobenzene, rich nutrition and abundant hexachlorobenzene. The effect of nutrition

Inactive Publication Date: 2017-03-08
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, physical methods are generally only suitable for treating contaminated soil containing low concentrations of hexachlorobenzene. This method not only has high treatment costs, but also has secondary pollution; Disadvantages of harshness and poor engineering feasibility

Method used

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  • Fertilizer for repairing hexachlorobenzene pollution
  • Fertilizer for repairing hexachlorobenzene pollution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A hexachlorobenzene-polluted repair fertilizer, consisting of the following raw materials in parts by weight: 20 kg of sodium nitrate, 30 kg of urea, 15 kg of potassium nitrate, 20 kg of potassium sulfate, 18 kg of potassium dihydrogen phosphate, 10 kg of urea phosphate, 15 kg of calcium phosphate, carbonic acid Sodium hydrogen 8kg, polyaluminum 15kg, clay 14kg, coal gangue 12kg, ferronickel slag 10kg, blue-green algae 10kg, kelp 10kg, modified edible fungus slag 15kg, modified red mud 20kg, modified cyclodextrin 10kg.

[0022] For the modified edible fungus residue, collect the fungus bag, remove the plastic bag and the moldy part, dry, pulverize, add tartaric acid to soak for 25 minutes, put it under reflux at 65°C for 10 minutes, add zeolite powder, and heat at 4°C / Raise the temperature to 100°C at a speed of 1 min, stir with a magnetic stirrer for 1.1 h, filter, dry, and crush through a 20-mesh sieve.

[0023] For the modified red mud, collect the red mud, add 3.5m...

Embodiment 2

[0031] A repairing fertilizer polluted by hexachlorobenzene, consisting of the following raw materials in parts by weight: 30 kg of sodium nitrate, 50 kg of urea, 30 kg of potassium nitrate, 40 kg of potassium sulfate, 22 kg of potassium dihydrogen phosphate, 30 kg of urea phosphate, 25 kg of calcium phosphate, carbonic acid Sodium hydrogen 14kg, polyaluminum 25kg, clay 18kg, coal gangue 16kg, ferronickel slag 15kg, blue-green algae 15kg, kelp 18kg, modified edible fungus slag 25kg, modified red mud 30kg, modified cyclodextrin 20kg.

[0032] For the modified edible fungus residue, collect the fungus bag, remove the plastic bag and the moldy part, dry, pulverize, add tartaric acid to soak for 30 minutes, put it under reflux for 15 minutes at 70°C, add zeolite powder, and heat at 5°C / Raise the temperature to 110°C at a speed of 1 min, stir with a magnetic stirrer for 1.3 h, filter, dry, and crush through a 40-mesh sieve.

[0033] For the modified red mud, collect the red mud, add...

Embodiment 3

[0041] A hexachlorobenzene-polluted remedial fertilizer is composed of the following raw materials in parts by weight: 25 kg of sodium nitrate, 40 kg of urea, 22 kg of potassium nitrate, 30 kg of potassium sulfate, 20 kg of potassium dihydrogen phosphate, 20 kg of urea phosphate, 20 kg of calcium phosphate, Sodium bicarbonate 12kg, polyaluminum 20kg, clay 16kg, coal gangue 14kg, ferronickel slag 13kg, blue-green algae 13kg, kelp 14kg, modified edible fungus slag 20kg, modified red mud 25kg, modified cyclodextrin 15kg.

[0042] For the modified edible fungus residue, collect the fungus bag, remove the plastic bag and the moldy part, dry, crush, add tartaric acid to soak for 28 minutes, put it under reflux at 68°C for 13 minutes, add zeolite powder, and heat at 4.5°C / Raise the temperature to 105°C at a speed of 1 min, stir with a magnetic stirrer for 1.2 h, filter, dry, and crush through a 30-mesh sieve.

[0043] For the modified red mud, collect the red mud, add 4mol / L hydroch...

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Abstract

The invention relates to the technical field of fertilizers, in particular to a fertilizer for repairing hexachlorobenzene pollution. The fertilizer is prepared from, by weight, 20-30 parts of sodium nitrate, 30-50 parts of urea, 15-30 parts of potassium nitrate, 20-40 parts of potassium sulfate, 18-22 parts of monopotassium phosphate, 10-30 parts of urea phosphate, 15-25 parts of calcium phosphate, 8-14 parts of sodium bicarbonate, 15-25 parts of polyaluminium chloride, 14-18 parts of clay, 12-16 parts of coal gangue, 10-15 parts of ferro-nickel mineral slag, 10-15 parts of blue-green algae, 10-18 parts of kelp, 15-25 parts of modified edible mushroom residues, 20-30 parts of modified red mud and 10-20 parts of modified cyclodextrin. The fertilizer is rich in nutrition, contains a large number of elements and trace nutrient elements required by crops, and is rich in various nutrient elements, and the content of total nutritive substances of nitrogen, phosphorus and potassium is larger than or equal to 61.2%; According to the fertilizer, the removal rate of hexachlorobenzene in soil reaches 92.3% or above, the removal effect is significant, by taking sweet potatoes as examples, the yield can be increased by 12.85%-13.45%, and 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 repair fertilizer polluted by hexachlorobenzene. Background technique [0002] Hexachlorobenzene is one of the first 12 persistent organic pollutants (POPs) controlled by the United Nations Environment Program International Convention. The production of graphite, the treatment of graphite anodes, the production of military fumes, and the manufacture of aluminum or other metals are all produced. At present, the soil pollution caused by hexachlorobenzene in my country has reached a relatively serious level. For example, the concentration of hexachlorobenzene in the soil of a dye factory production enterprise has been detected as high as 2.8mg / kg. If there is hexachlorobenzene in the soil, it will not only destroy the natural growth of vegetation, but also easily cause the deterioration of groundwater quality. More importantly, hexachlorobenzene in polluted soil can also be p...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05B15/00C05C5/02C05C9/00C05D1/02C05D9/00C05F5/00C05F11/00
Inventor 陈肖虎唐道文赵平原王丽远金会心黄碧芳
Owner GUIZHOU UNIV