Preparation method of super-hydrophobic sand and application method of the super-hydrophobic sand in desert ecological restoration and treatment

Abstract

The invention discloses a preparation method of super-hydrophobic sand and an application method of the super-hydrophobic sand in desert ecological restoration and treatment, and relates to the fieldof desert ecological restoration and treatment. The invention mainly aims to solve the problems of high-temperature evaporation of rainwater in deserts, infinite permeation to the underground and thelike at present. The sand and the super-hydrophobic emulsion are fully and uniformly mixed until all sand grains are wetted by the emulsion, then the sand grains are naturally aired or dried, and thesuper-hydrophobic sand is formed after the treated sand is completely dried; a super-hydrophobic evaporation-proof sand layer is paved above the planting sand layer, namely the surface layer, or / and asuper-hydrophobic seepage-proof sand layer for preventing water from permeating downwards is paved below the desert planting sand layer. The invention has the advantages that water evaporation can beinhibited, and water in the planting sand bed is prevented or blocked from permeating downwards.

Description

technical field [0001] The invention relates to the field of desert ecological restoration and management, in particular to a preparation method of super-hydrophobic sand and the application of super-hydrophobic sand in desert ecological restoration and management. Background technique [0002] At present, there are many attempts to prevent the spread of desertification, among which the sustainable development of ecological desert treatment or restoration that does not constitute pollution or secondary environmental damage is a more ideal method. In the initial stage of desert ecological restoration, artificially create a desert environment that is suitable for plant growth, such as providing the most basic water required for plant growth, and more importantly, creating a good desert environment that retains water and moisture to prevent water and nutrient loss. Plants After years of cyclic growth, a large amount of plant organic fiber substances and sand carriers have forme...

AI Technical Summary

Problems solved by technology

The main factors of rainwater loss in the desert are high temperature evaporation and unlimited penetration into the ground. In order to slow down the evaporation of water, such as covering a layer of super-hydrophobic sand on the surface to inhibit the volatilization of internal water, or adding an appropriate amount of strong water-absorbing sand to the surface of the desert. Non-toxic wood fiber or lignin or plant degradation products can well inhibit the evaporation of water; in order to prevent rainwater from penetrating into the ground, the current method is to lay a layer of refractory plastic film or chemically synthesized polymer film on the lower layer of the desert. These methods mainly have defects in three aspects. First, the film is airtight and not suitable for the growth of plants; at the same time, polymers such as plastics cause serious secondary pollution to the desert; in the high temperature environment of the desert, the service life of the plastic film is also problem

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