Method for promoting lawn absorb heavy metal from consumer garbage compost and increasing photosynthesis amount cooperated with angleworm

A technology for domestic waste and garbage composting, which is used in the restoration of polluted soil and other directions

Inactive Publication Date: 2009-01-07
TIANJIN NORMAL UNIVERSITY
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  • Abstract
  • Description
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Problems solved by technology

Then, it is of great significance to study the remediation technology of heavy metal compound pollution caused by earthworm composting of municipal solid waste. So far, there are

Method used

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  • Method for promoting lawn absorb heavy metal from consumer garbage compost and increasing photosynthesis amount cooperated with angleworm
  • Method for promoting lawn absorb heavy metal from consumer garbage compost and increasing photosynthesis amount cooperated with angleworm
  • Method for promoting lawn absorb heavy metal from consumer garbage compost and increasing photosynthesis amount cooperated with angleworm

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Experimental program
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Effect test

Embodiment 1

[0082] Source of raw materials: The domestic waste compost in Xiaodian, Tianjin was used as the test substrate. Turfgrasses are perennial ryegrass (Lolium perenne L.), tall fescue (Festuca arundinacea L.) and bluegrass (Poa pratensis L.), which are common in northern my country. Earthworms were Eisenia fetida provided by Tianjin Ninghe Jia Liming Earthworm Breeding Company.

[0083] experimental method:

[0084] Take a 18×20cm plastic basin with air holes at the bottom, put a layer of gauze on the bottom of the basin to ensure good air permeability, and then spread a layer of moist soil to prevent earthworms from drilling out from the bottom. Put 2kg of domestic waste compost through a 20-mesh sieve into each pot, wash the earthworms, and put them in an enamel plate to spit out the soil for one day, put 40 earthworms in each pot, and sow ryegrass, tall fescue, and bluegrass on the surface of the compost substrate. Grass seed 1.5g, with no earthworms as the control, repeated ...

Embodiment 2

[0095] Raw material source: same as above

[0096] Take a 18×20cm enamel pot with air holes at the bottom, put a layer of gauze on the bottom of the pot to ensure good air permeability, and then spread a layer of moist soil to prevent earthworms from drilling out from the bottom. Put 2kg of domestic waste compost through a 20-mesh sieve into each pot, wash the earthworms, and put them in an enamel plate to spit out the soil for one day, put 60 earthworms in each pot, and sow ryegrass, tall fescue, and bluegrass on the surface of the compost substrate. Grass seed 1.5g, with no earthworms as the control, repeated 3 times. The experiment was carried out at room temperature, grown under natural light, the average light time was 7 hours, the indoor temperature was 18°C, and the relative humidity was -39%. Spray an appropriate amount of water every day to keep the field water holding capacity at 65% until the end of the experiment. Harvest after 45 days, and measure various physio...

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Abstract

The invention relates to a method for restoring heavy metal from waste compost by an earthworm in synergism with turf grass, and enhancing photosynthetic amount. A container is provided with an air vent at the bottom, and lined with a layer of gauze; 2 to 4kg of municipal solid waste compost sieved through an over 20-mesh sieve is filled into the container, and 40 to 80 earthworms are also put into the container; 1.5 to 3g of turf grass is scattered on the surface of a compost substrate of the container, and grows at the indoor temperature of 15 to 21 DEG C and 34 to 30 percent of relative humidity; the appropriate amount of water is sprinkled for watering the turf grass every day, so as to maintain 60 to 65 percent of substrate water capacity; the turf grass is mowed 45 days later, so as to mensurate corresponding index content. The method can enhance the transfer of the heavy metal from the underground part of the turf grass to the ground part, thereby increasing the content of the chlorophyll of the turf grass and the photosynthetic amount; furthermore, the method is favorable for promoting the absorption and the concentration of the turf grass to the heavy metal.

Description

technical field [0001] The invention belongs to the technical field of urban environmental protection, and relates to a method for repairing heavy metals in composting domestic garbage and increasing photosynthesis by earthworms and lawn grasses. Background technique [0002] At present, with the rapid development of the economy and the continuous improvement of people's living standards, municipal solid waste is increasing at a rate of 8%. Garbage has become a thorny problem in the development of urban society. It not only causes public hazards to society and the environment, but also causes a huge waste of resources. Nowadays, with people's increasing awareness of environmental protection and deepening understanding of sustainable development issues, more and more people have accepted that municipal solid waste treatment should take the road of resource utilization, reduction and harmlessness. The problem of domestic waste disposal in China is urgent. In addition to simp...

Claims

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Application Information

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IPC IPC(8): B09C1/00
Inventor 多立安赵树兰张玥含
Owner TIANJIN NORMAL UNIVERSITY
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