Method for regulating turfgrass heavy metal accumulation by using OTC and carbon nano-tube interlayer

A carbon nanotube and heavy metal technology, which is applied in horticultural methods, botanical equipment and methods, applications, etc., can solve the problems of pollution, increased risk of leaching, and enhanced activity of heavy metals.

Inactive Publication Date: 2015-10-07
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The addition of organic chemicals also increases the content of heavy metals in the leachate, enhances t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The method of regulating the enrichment of heavy metals in turfgrass by using OTC and carbon nanotube interlayer:

[0058] (1) Under natural light, use PVC pipes, Φ=3cm, h=25cm, wrap the lower end of each PVC pipe with gauze, put 10g of sand passing through a 1mm sieve, and then place the interlayer on the sand, with a height of 5cm, Finally, 160g of compost is placed on the interlayer, and 0.3g of tall fescue seeds soaked 24 hours in advance are sprinkled in each PVC pipe, and all PVC pipes are watered with tap water every morning and evening and the water content is adjusted by weighing method; The water content of the mixture was kept at 60% of its maximum water holding capacity, the indoor temperature and relative humidity were 19°C and 41%, respectively, and the light intensity was 600

[0059] (2) Interlayer material: Carrier material dry weight 5g, carbon nanotube dry weight 2g, mix evenly, the total height of the interlayer is 5 cm, then add 20mmol / kg OTC solu...

Embodiment 2

[0062] The method of regulating the enrichment of heavy metals in turfgrass by using OTC and carbon nanotube interlayer:

[0063] (1) Under natural light, use PVC pipes, Φ=3cm, h=25cm, wrap the lower end of each PVC pipe with gauze, put 10g of sand passing through a 1mm sieve, and then place the interlayer on the sand, with a height of 5cm, Finally, 160g of compost is placed on the interlayer, and 0.3g of tall fescue seeds soaked 24 hours in advance are sprinkled in each PVC pipe, and all PVC pipes are watered with tap water every morning and evening and the water content is adjusted by weighing method; The water content of the mixture is kept at 60% of its maximum water holding capacity, the indoor temperature and relative humidity are 24°C and 58%, respectively, and the light intensity is 850

[0064] (2) Interlayer material: Carrier material dry weight 5g, carbon nanotube dry weight 2g, mix evenly, the total height of the interlayer is 5 cm, then add 20mmol / kg OTC solutio...

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Abstract

The invention discloses a method for regulating turfgrass heavy metal accumulation by using an OTC (oxytetracycline) and carbon nano-tube interlayer. An oxide-modified carbon nano-tube is used as an interlayer. The objectives are to reduce effect of leaking heavy metal to underground after the OTC is coupled with compost compound heavy metal, and to provide important technical support for a modified carbon nano-tube repairing heavy metal coupled pollution. Experiment results show that under the action of the OTC, adding of the carbon nano-tubes mixed in layers increases heavy metal accumulation amount of the overground part of festuca arundinacea, and heavy metal total amount in percolate in the modified carbon nano-tube interlayer is lower than that of control groups. The addition of the modified carbon nano-tube reduces risks that heavy metal is transferred to underground water to a certain degree, and provides technical support for practical application of the method.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a method for regulating the accumulation of heavy metals in turfgrass by using oxytetracycline (OTC) and a carbon nanotube interlayer. Background technique [0002] Household garbage is a general term for the solid waste discharged in the daily life of urban people. Composting technology is mostly used in the treatment of urban household garbage in my country. Municipal solid waste compost contains phosphorus, nitrogen, potassium and organic matter and other nutrients needed for plant growth, and can be used as organic fertilizer in agriculture. The nutrients in the garbage compost can increase the organic matter content of the nutrients by 11.81%-72.12%. Studies have shown that the application of domestic waste compost can significantly increase the yield of Chinese cabbage. The study found that using domestic waste compost as a substrate to plant tea trees incr...

Claims

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Application Information

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IPC IPC(8): A01G31/00A01G7/06
CPCA01G7/06A01G31/00
Inventor 多立安赵树兰齐帅
Owner TIANJIN NORMAL UNIVERSITY
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