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Curing agent repair technology for stabilizing organic matter chlorine benzene polluted plantation soil

A technology for arable soil and polluted soil, applied in the field of soil treatment, can solve problems such as toxic by-products, adverse environmental effects, and complex processes, and achieve the effects of simple and easy operation, good treatment effect, and best restoration effect

Inactive Publication Date: 2017-05-10
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is that the current common organic compound chlorobenzene-contaminated cultivated soil repair methods are often complex and expensive. Although the toxicity or content of soil pollutants can be reduced, more toxic by-products may be formed. Defects that cause adverse effects on the environment provide a new curing agent repair technology for stabilizing organic chlorobenzene-contaminated cultivated land soil. This method uses animal bones as raw materials, degreases and activates them and carbonizes them to produce bone char particles, which are mixed with ordinary silicon The curing agent is obtained after compounding salt cement, and the contaminated soil can be repaired after mixing the curing agent and the soil to be treated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Weigh 1kg of beef bones discarded by the slaughterhouse, put them into an iron pot, add water to the pot until the bones are completely submerged, heat the iron pot to 95°C, keep it warm for 1 hour, degrease the surface of the bones, and cook After the end, the bovine bone is drained and the impurities are manually removed to obtain the pretreated bovine bone; the above pretreated bovine bone is put into a jet mill, crushed for 30 minutes, and passed through a 60-mesh standard sieve to obtain bovine bone particles. Mix bovine bone particles and 30% sodium hydroxide solution at a ratio of 1:5, put them into an ultrasonic oscillator and oscillate with a power of 200W for 1 hour; Feed nitrogen into the furnace at a rate of 3mL / min until all the air in the furnace is replaced, heat up to 400°C and keep carbonized for 2 hours to obtain bovine bone charcoal; mix the bovine bone charcoal prepared above with ordinary Portland cement at a mass ratio of 3:1 Put them into a ball m...

example 2

[0018] Take 2kg of beef bones discarded by the slaughterhouse, put them into an iron pot, add water to the pot until the bones are completely submerged, heat the iron pot to 98°C, keep it warm and cook for 2 hours to degrease the surface of the bones, and the cooking is over Finally, the bovine bone is drained and the impurities are manually removed to obtain the pretreated bovine bone; the above pretreated bovine bone is put into a jet mill, crushed for 35 minutes, and passed through a 60-mesh standard sieve to obtain bovine bone particles. Mix bovine bone particles and 30% sodium hydroxide solution at a ratio of 1:5, put them into an ultrasonic oscillator and oscillate with a power of 250W for 2 hours; Feed nitrogen into the furnace at a rate of 1 / min until all the air in the furnace is replaced, heat up to 450°C and keep carbonized for 3 hours to obtain bovine bone charcoal; mix the bovine bone charcoal prepared above with ordinary Portland cement evenly at a mass ratio of 3...

example 3

[0020] Put 2kg of beef bones discarded by the slaughterhouse into an iron pot, add water to the pot until the bones are completely submerged, heat the iron pot to 100°C, keep it warm for 2 hours, and degrease the surface of the bones. Drain the bovine bone and manually remove impurities to obtain the pretreated bovine bone; put the pretreated bovine bone into an airflow mill, crush it for 40 minutes and pass through a 60-mesh standard sieve to obtain bovine bone particles. The solid-to-liquid ratio is Mix bovine bone particles and 30% sodium hydroxide solution at a ratio of 1:5, put them into an ultrasonic oscillator and oscillate with a power of 300W and impregnate for 2 hours; Feed nitrogen into the furnace at a rate of min until all the air in the furnace is replaced, heat up to 500°C and carbonize for 4 hours to obtain bovine bone charcoal; mix the bovine bone charcoal prepared above with ordinary Portland cement at a mass ratio of 3:1. Pack into the ball mill together, an...

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Abstract

The invention relates to a curing agent repair technology for stabilizing organic matter chlorine benzene polluted plantation soil, and belongs to the technical field of soil treatment. The method uses animal bones as raw materials; bone carbon particles are prepared by carbonization after degreasing and activation, and are compounded with general silicate cement to obtain a curing agent; and the curing agent is mixed with soil to be treated to repair the polluted soil. The new soil repair technology is simple in operation process, easy to operate, low in repair cost and excellent in treatment effect.

Description

technical field [0001] The invention relates to a new curing agent restoration technology for stabilizing cultivated soil polluted by organic matter chlorobenzene, and belongs to the technical field of soil treatment. Background technique [0002] Solidification stabilization is to limit or reduce the migration and release of pollutant components in waste to the environment through various physical and chemical effects, so as to facilitate waste transportation, utilization and final disposal. The research and application of solidification and stabilization technology at home and abroad mainly focus on the treatment and disposal of wastes containing heavy metals. There are also many researches and applications on solidification and stabilization technologies for toxic organic pollutants in developed countries, but they are still blank in China. . In heavily polluted production sites such as petroleum, petrochemicals, pesticides, preparations, and chemical raw materials, ther...

Claims

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Application Information

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IPC IPC(8): B09C1/08C09K17/10C09K101/00
CPCB09C1/08C09K17/10C09K2101/00
Inventor 赵远孙向武孙辰鹏杨泽平陈江杰殷鸿洋张念慈顾建谢寅徐腾聂莉戴江吴彬
Owner CHANGZHOU UNIV
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