Method of using chlorpyrifos and CNT (carbon nanometer tube) interlayer to regulate lawn grass heavy metal accumulation

A technology of pyrithione and carbon nanotubes, applied in horticultural methods, botanical equipment and methods, applications, etc., can solve problems such as pollution, increased activity of heavy metals, and increased risk of leaching

Inactive Publication Date: 2015-08-19
TIANJIN NORMAL UNIVERSITY
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  • Abstract
  • Description
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Problems solved by technology

The addition of pyrithione also increased the content of heavy metals in the leachate, enhanced t...

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0056] A method for regulating the enrichment of heavy metals in turfgrass by adopting pyrithione carbon nanotube interlayer:

[0057] (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 19-2°C, 41%, and the light intensity was 600 μmol.m -2 .s -1 ;

[0058] (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 ...

Embodiment 2

[0061] A method for regulating the enrichment of heavy metals in turfgrass by adopting pyrithione carbon nanotube interlayer:

[0062] (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 24°C and 58%, respectively, and the light intensity was 850 μmol.m -2 .s -1 ;

[0063] (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...

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Abstract

The invention discloses a method for using chlorpyrifos and a CNT (carbon nanometer tube) interlayer to regulate lawn grass heavy metal accumulation. The method for using the chlorpyrifos and the CNT interlayer to regulate the lawn grass heavy metal accumulation uses an oxidative modification CNT as the interlayer, aims at using the interlayer to reduce underground leakage influences of heavy metal after the chlorpyrifos and compost compound heavy metal are coupled, and provides important technical support to the oxidative modification CNT in remediation of heavy metal coupling pollution. An experiment result proves that under action of the chlorpyrifos, adding of the oxidative modification CNT mixed with all layers increases heavy metal accumulation amount of aboveground parts of festuca arundinacea, and compared with contrast groups, heavy metal total amount of percolation liquid in the CNT interlayer is reduced. The adding of the oxidative modification CNT reduces the risk that the heavy metal migrates towards underground water to a certain extent, and then technical support is provided to practical application of the method for using the chlorpyrifos and the CNT interlayer to regulate the lawn grass heavy metal accumulation.

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 an interlayer of pyrithione and carbon nanotubes. 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 increased ...

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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