Method for testing fertilizer efficiency of fine garbage compost

A technology of waste composting and determination method, which is applied to the rational use of municipal solid waste composting and the determination of micronized waste composting efficiency.

Inactive Publication Date: 2012-05-09
TIANJIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the application of untreated municipal solid waste coarse compost in lawn drought resistance has been reported, but the effect is not good, and the problem has not been fundamentally solved.
Judging from the existing research, the previous research on garbage composting mostly focused on the overall utilization of coarse compost. If such extensive practice is applied to soil or plant growth for a long time, it will not only destroy the microenvironment of the soil, but also have a negative effect on improving resource utilization. The utilization efficiency of
If the domestic waste compost is processed by a pulverizer to form different particle sizes, so as to remove excessive harmful substances accumulated in certain particle sizes of compost, retain compost particles that provide nutrients for plant growth and improve soil physical and chemical properties, and can play specific compost particles. The advantages of rich organic matter and nutrient elements, especially the method of measuring the fertilizer efficiency of fine waste composting, there is no literature report at home and abroad

Method used

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  • Method for testing fertilizer efficiency of fine garbage compost
  • Method for testing fertilizer efficiency of fine garbage compost

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) The compost used in the experiment was first removed from impurities, then dried to a constant weight at 105°C, and the compost with a particle size of 1700nm was sieved;

[0038] (2) Pulverize the compost with a particle size of 1700nm at 24000 rpm for 9min, 6min, 3min, 2min and 1min respectively to prepare compost with different particle sizes, put the compost with different particle sizes into alcohol, and use The ultrasonic oscillator makes it evenly dispersed and becomes a suspension;

[0039] (3) Then use a toothpick to stick a little suspension, apply a layer on the surface of the sample table, dry it with electric hot air, then use a vacuum cleaner for half a minute, and finally use a S4800 field emission scanning electron microscope to measure the particle size. The obtained compost particles The diameters are 1700nm, 1200nm, 600nm, 300nm, 240nm and 100nm; the organic matter content in the compost is 22.00%, and the bulk density is 0.79g cm -3 , pH 7.62, p...

Embodiment 2

[0042] (1) The compost used in the experiment was first removed from impurities, then dried to a constant weight at 105°C, and the compost with a particle size of 1700nm was sieved;

[0043] (2) Pulverize the compost with a particle size of 1700nm at 24000 rpm for 9min, 6min, 3min, 2min and 1min respectively to prepare compost with different particle sizes, put the compost with different particle sizes into alcohol, and use The ultrasonic oscillator makes it evenly dispersed and becomes a suspension;

[0044] (3) Then use a toothpick to stick a little suspension, apply a layer on the surface of the sample table, dry it with electric hot air, then use a vacuum cleaner for half a minute, and finally use a S4800 field emission scanning electron microscope to measure the particle size. The obtained compost particles The diameters are 1700nm, 1200nm, 600nm, 300nm, 240nm and 100nm; the organic matter content in the compost is 22.00%, and the bulk density is 0.79g cm -3 , pH 7.62, p...

Embodiment 3

[0047] (1) The compost used in the experiment was first removed from impurities, then dried to a constant weight at 105°C, and the compost with a particle size of 1700nm was sieved;

[0048] (2) Pulverize the compost with a particle size of 1700nm at 24000 rpm for 9min, 6min, 3min, 2min and 1min respectively to prepare compost with different particle sizes, put the compost with different particle sizes into alcohol, and use The ultrasonic oscillator makes it evenly dispersed and becomes a suspension;

[0049] (3) Then use a toothpick to stick a little suspension, apply a layer on the surface of the sample table, dry it with electric hot air, then use a vacuum cleaner for half a minute, and finally use a S4800 field emission scanning electron microscope to measure the particle size. The obtained compost particles The diameters are 1700nm, 1200nm, 600nm, 300nm, 240nm and 100nm; the organic matter content in the compost is 22.00%, and the bulk density is 0.79g cm -3 , pH 7.62, p...

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Abstract

The invention relates to a method for testing the fertilizer efficiency of fine garbage compost. The method comprises the following steps of: removing impurities from the compost, drying the compost at the temperature of 105 DEG C to constant weight, screening the compost of which the particle size is 1,700 nanometers, smashing the screened compost at the speed of 24,000 revolutions per minute for 9 minutes, 6 minutes, 3 minutes, 2 minutes and 1 minute respectively to prepare the compost with different particle sizes, putting the compost with the different particle sizes into alcohol, and uniformly dispersing the compost with the different particle sizes by using an ultrasonic oscillator to prepare suspension; dipping a toothpick with a small amount of suspension, coating a layer of suspension on the surface of a sample platform, drying the suspension by using electric heating air, sucking the dried suspension by using a dust collector for half a minute and measuring the particle sizes by using an S4800 field-emission scanning electron microscopy, wherein the particle sizes of the obtained compost are 1,700 nanometers, 1,200 nanometers, 600 nanometers, 300 nanometers, 240 nanometers and 100 nanometers respectively; and weighing 0.5 grams of garbage compost to determine a digest volume respectively and testing the fertilizer efficiency of the fine garbage compost by using an inductively coupled plasma optical emission spectrometer.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and relates to the reasonable use of composting of municipal domestic garbage. More specifically, it is a method for measuring the fertilizer efficiency of miniaturized garbage composting. Background technique [0002] With the acceleration of urbanization and the improvement of people's living standards, great changes have taken place in my country's urban domestic waste. Firstly, due to the increase of urban population, the generation of urban domestic waste is increasing. Secondly, due to the improvement of living standards, the content of organic matter in garbage is getting higher and higher, and the calorific value of garbage has also been greatly improved. Since composting can realize the harmlessness, reduction and recycling of garbage at the same time, as one of the treatment methods of municipal solid waste, composting has been paid more and more attention by people. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/73G01N1/28
Inventor 赵树兰多立安
Owner TIANJIN NORMAL UNIVERSITY
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