Preparation method of water-retention dust-suppression green-recovery environment-friendly material and application thereof

Abstract

The invention belongs to the field of environmental protection and engineering construction, and discloses a preparation method of a water-retention, dust-suppression and green-recovery environment-friendly material and an application thereof. A water-retaining, dust-suppressing and green-recovery agent A is prepared from a calcium-based material, a plant growth regulator, grass seeds and water, and a water-retaining, dust-suppressing and green-recovery agent B is prepared from a natural polysaccharide material and water. In industrial land, desertification land, greening land and sites where soil pollution treatment is completed, the water-retaining, dust-suppressing and green-recovery agent A is evenly sprayed on the soil surface of the sites without soil turning treatment, and after spraying is completed, the water-retaining, dust-suppressing and green-recovery agent B is evenly sprayed on the soil surface of the sites without soil turning treatment, and manual watering and fertilization are not needed subsequently. The water-retaining, dust-suppressing and green-recovery agent can be sprayed to achieve the effect of inhibiting flying dust of field soil for a long time, the germination speed of grass seeds in the material is high, the green-recovering speed is high, the maintenance time is long, and flying dust can be inhibited. By means of the method, flying dust generated by site soil can be efficiently treated within a short time, and generation of the flying dust is continuously inhibited through the further fixing effect of grass plants.

Description

technical field [0001] The invention belongs to the field of environmental protection and engineering construction, and in particular relates to a preparation method and application of a water-retaining, dust-suppressing, greening and greening environmental protection material. Background technique [0002] Aerosol particles with a particle size of less than 100um are called total suspended particles, which are the primary source of air pollutants. Particles with a particle size of less than 10um can enter the human respiratory system and can be inhaled, called PM10. PM2.5 is called PM2.5 with a diameter of less than 2.5um. Particles of this size can be deposited in human alveoli, where the rich toxic and harmful substances stay for a long time, leading to lung lesions. The total suspended solids mainly come from flying dust, and effective suppression of flying dust can ensure the safety of air quality. [0003] Nowadays, China's industrialization is progressing rapidly, an...

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Problems solved by technology

[0004] Patent CN105586008A discloses a method of dust suppression using bentonite and sodium carboxymethyl cellulose, which mainly achieves the purpose of dust suppression through the adhesive film layer and solidified hard shell formed between materials. It has a good effect, but the long-term dust suppression effect needs time to verify

Patent CN111133946A discloses a method for rapid regreening of abandoned mine slopes. It mainly achieves the effect of dust suppression and regreening by repairing slopes, planting plants, artificial maintenance, watering and fertilization. It is a long-term suppression of dust by plants. Environmentally friendly solution, but the operations of slope repair, manual maintenance, watering and fertilization are too cumbersome, and the labor cost is high. At the same time, this technology does not consider the problem of dust suppression in the planting process

Patent CN109287367A discloses a method for regreening vegetation in desertified areas. By spraying dust suppressants in desertified areas, the soil loss caused by dust and quicksand can be reduced, and water retention can be achieved. Finally, plants can be planted to achieve the purpose of regreening the site. However, for The site construction irrigation system and covering non-woven fabrics also require a large investment, and the processing cost is relatively high

From the above examples, it can be seen that the typical disadvantages of the currently known dust suppression methods are the lack of long-term dust suppression effect, the problem of dust suppression is not considered in the regreening process, and the labor cost and construction cost before and after restoration are high.

[0005] Therefore, at present, there are many studies on dust inhibitors, but less attention has been paid to issues such as the persistence of dust inhibitors, dust suppression in the regreening process, and the simplicity of operation. Green chemicals, through the growth of grass plants to protect the soil, permanently prevent and control dust, and at the same time need to meet the needs of simple process operation

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