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Aeolian sandy soil repairing agent, preparation method thereof, and aeolian sandy soil restoring method

A technology of aeolian soil and remediation agent, applied in the field of soil remediation, can solve problems such as restricting land use of sludge, and achieve the effects of reducing deterioration, greening the environment, and high surface energy

Active Publication Date: 2017-07-04
YULIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the presence of a variety of heavy metals in sludge, the promotion of land use of sludge has been restricted.

Method used

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  • Aeolian sandy soil repairing agent, preparation method thereof, and aeolian sandy soil restoring method
  • Aeolian sandy soil repairing agent, preparation method thereof, and aeolian sandy soil restoring method
  • Aeolian sandy soil repairing agent, preparation method thereof, and aeolian sandy soil restoring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Sampling:

[0038] Fly ash is taken from power plants, municipal sludge is taken from urban sewage treatment plants, and wind-blown sand is taken from deserts.

[0039] (2) Preparation of restoration agent:

[0040] Take a certain amount of fly ash and municipal sludge and mix them thoroughly according to the mass ratio of 5% (wt / wt), and then irradiate the mixture with gamma rays for 5min, and the radiation measurement value is 2kGy. The irradiated sample was cooled to room temperature, settled for 0.5 h, and filtered to remove the supernatant (for use) to obtain the aeolian soil remediation agent.

[0041] (3) Restorative agent with sandy soil:

[0042] Mix the restorative agent and aeolian soil at a volume ratio of 1:1. During the mixing period, a certain amount of the supernatant in (1) can be added to the mixture so that the restoration agent and aeolian soil are fully mixed and the components are uniform. The mixture is naturally dried at room temperature, ...

Embodiment 2

[0061] (1) Sampling of fly ash, urban sludge and wind-blown sand is the same as in Example 1.

[0062] (2) Preparation of restoration agent:

[0063] A certain amount of fly ash and municipal sludge were fully mixed according to the mass ratio of 6% (wt / wt), and then the mixture was irradiated with gamma rays for 10 minutes, and the radiation measurement value was 3kGy. The irradiated sample was cooled to room temperature, settled for 0.8 h, filtered to remove the supernatant (for use), and obtained the aeolian soil restoration agent.

[0064] (3) Restorative agent with sandy soil:

[0065] Mix the restorative agent and aeolian soil at a volume ratio of 1:2. During the mixing period, a certain amount of the supernatant in (1) can be added to the mixture so that the restoration agent and aeolian soil are fully mixed and the components are uniform. The mixture is naturally dried at room temperature, and the dried mixture is passed through a 50-mesh sieve for later use.

[006...

Embodiment 3

[0084] (1) Sampling of fly ash, urban sludge and wind-blown sand is the same as in Example 1.

[0085] (2) Preparation of restoration agent:

[0086] A certain amount of fly ash and municipal sludge were mixed thoroughly according to the mass ratio of 7% (wt / wt), and then the mixture was irradiated with gamma rays for 20 minutes, and the radiation measurement value was 5kGy. The irradiated sample was cooled to room temperature, settled for 1 h, and the supernatant was removed by filtration (for use), to obtain the aeolian soil remediation agent.

[0087] (3) Restorative agent with sandy soil:

[0088] Mix the restorative agent and aeolian soil at a volume ratio of 1:3. During the mixing period, a certain amount of the supernatant in (1) can be added to the mixture so that the restoration agent and aeolian soil are fully mixed and the components are uniform. The mixture was naturally dried at room temperature, and the dried mixture was passed through a 60-mesh sieve for later...

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Abstract

The invention relates to an aeolian sandy soil repairing agent, a preparation method thereof, and an aeolian sandy soil restoring method. According to the preparation method, fly ash and municipal sludge are mixed at a mass ratio of (5-10):100 so as to obtain a mixture A; the mixture A is subjected to irradiation treatment, is cooled to room temperature, and is subjected to precipitation so as to obtain a supernatant and a precipitate via separation, wherein the precipitate is the aeolian sandy soil repairing agent; the aeolian sandy soil repairing agent is mixed with aeolian sandy soil uniformly so as to obtain a mixture B; the mixture B is dried, and is taken as plantation soil; artemisia desertorum is planted in the mixture B under natural lighting for aeolian sandy soil restoring. According to the aeolian sandy soil restoring method, the aeolian sandy soil repairing agent and aeolian sandy soil are mixed, and artemisia desertorum is planted for aeolian sandy soil restoring, changing wastes such as fly ash and municipal sludge into valuables, preventing propagating of aeolian sandy soil, and avoiding sand land deterioration.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of soil remediation, and relates to an aeolian soil remediation agent, a preparation method thereof and a method for aeolian soil remediation. [0003] 【Background technique】 [0004] Wind erosion and desertification of land is not only an ecological and environmental problem, but also a political, economic and social security problem. Throughout the Silk Road Economic Belt, the land in most countries is seriously desertified. With the rapid development of industrialization, the process of wind erosion and desertification of land has not been effectively controlled, but is accompanied by the further spread of industrial and domestic pollution, seriously affecting the advancement of the "Belt and Road" construction. [0005] In recent years, "treatment of waste with waste and recycling of waste resources" has received extensive attention and research, especially for solid wastes such as urban sludge and fly as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01B79/02C09K105/00
CPCA01B79/02C09K17/40C09K2105/00
Inventor 相玉琳王立鹏王爱民白妮王若恺
Owner YULIN UNIV
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