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The application of cycloturon in strengthening turfgrass to extract heavy metals from domestic waste compost

A technology for domestic waste and heavy metals, which is applied in the restoration of polluted soil and other directions

Inactive Publication Date: 2017-10-10
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still no way to study the technology of herbicides and turf synergistically remediating heavy metal pollution in compost substrates.

Method used

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  • The application of cycloturon in strengthening turfgrass to extract heavy metals from domestic waste compost
  • The application of cycloturon in strengthening turfgrass to extract heavy metals from domestic waste compost
  • The application of cycloturon in strengthening turfgrass to extract heavy metals from domestic waste compost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The measurement method is:

[0059] (1) Use PVC pipe Φ=3cm, h=25cm, wrap the lower end of each PVC pipe with gauze, put 10g of sand that has passed through a 1mm sieve and 190g of air-dried domestic waste compost that has passed through a 2mm sieve; sprinkle in each PVC pipe Put 0.3g of tall fescue seeds soaked 24h in advance, irrigate all PVC pipes with tap water every morning and evening, adjust the water content by weighing method, make the water content in the compost matrix reach the maximum water holding capacity of 60% and keep it constant, indoor temperature And relative humidity are 16℃, 36%, light intensity is 450 μmol.m -2 .s -1 ;

[0060] (2) After 30 days of normal culture, add 40ml of Siduron's aqueous solution with a ratio of 10mmol / kg and 20mmol / kg to the compost matrix of the lawn establishment system. After 15 days, reserve 1cm and then mow; cut the Place the above-ground part in an oven at 80°C to dry it to a constant weight and weigh;

[0061] (3) On the ...

Embodiment 2

[0064] The measurement method is:

[0065] (1) Use PVC pipe Φ=3cm, h=25cm, wrap the lower end of each PVC pipe with gauze, put 10g of sand that has passed through a 1mm sieve and 190g of air-dried domestic waste compost that has passed through a 2mm sieve; sprinkle in each PVC pipe Put 0.3g of tall fescue seeds soaked 24h in advance, irrigate all PVC pipes with tap water every morning and evening, adjust the water content by weighing method, make the water content in the compost matrix reach the maximum water holding capacity of 60% and keep it constant, indoor temperature And relative humidity are 22℃, 57%, light intensity is 700 μmol.m -2 .s -1 ;

[0066] (2) After 30 days of normal culture, add 40ml of Siduron's aqueous solution with a ratio of 10mmol / kg and 20mmol / kg to the compost matrix of the lawn establishment system. After 15 days, reserve 1cm and then mow; cut the Place the above-ground part in an oven at 80°C to dry it to a constant weight and weigh;

[0067] (3) On the ...

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Abstract

The invention discloses the application of Siduron in strengthening lawn grass to extract heavy metals from domestic waste composting. The described enhanced turfgrass extraction of heavy metals from domestic waste composting refers to the observation of the enrichment of heavy metals in the aboveground biomass of plants, the accumulation of heavy metals in the aboveground and underground parts of plants in the compost, and in the drenching solution by adding Siduron to the lawn compost matrix. Effect of heavy metal content. The experimental results show that the addition of 10-20 mmol / kg Siduron Siduron significantly enhances the ion activity and migration ratio of heavy metals and the coupling effect of heavy metals in compost increases the content of heavy metals in the eluate, which is of great significance for heavy metal leaching repair.

Description

Technical field [0001] The present invention belongs to the technical field of environmental protection, and relates to the application of Siduron in strengthening turfgrass to extract heavy metals from domestic waste compost. Background technique [0002] Domestic garbage is the general term for the solid wastes that are discarded in the daily life of urban people. The treatment of urban domestic garbage in my country mostly adopts composting technology. 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 garbage compost can increase the organic matter content of 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 grow tea trees increased the yield by about 7% c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/08
Inventor 多立安赵树兰齐帅
Owner TIANJIN NORMAL UNIVERSITY
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