Bottom spray-seeding substrate containing fermented sludge and preparation method thereof

Abstract

The invention relates to a bottom spray-seeding substrate containing fermented sludge and a preparation method thereof. The bottom spray-seeding substrate containing fermented sludge comprises: fermented sludge, an organic matter, loam, a soil water-holding agent and a binder. The bottom spray-seeding substrate containing fermented sludge provided by the invention can improve the soil structure, and also can improve soil fertility, the water holding capacity of soil and ion exchange capacity, thereby creating a soil environment suitable for plants. With good air permeability and water holding capacity, the bottom spray-seeding substrate containing fermented sludge is rich in organic matters, and provides good environment and nutrients for rapid growth of plants. At the same time, fermented sludge is employed to replace traditional peat to change sludge into things of value, thus improving resource development and utilization of sludge, reducing the cost of ecological rehabilitation projects, creating huge environmental and social benefits, also creating objective economic benefits for enterprises, and promoting the development of circular economy.

Description

technical field [0001] The invention relates to the field of spraying substrates in slope ecological treatment, in particular to a bottom spraying substrate containing fermented sludge and a preparation method thereof. Background technique [0002] At present, the main method of slope ecological management is to use foreign soil spraying technology to rebuild and restore vegetation, that is, to use special spraying equipment to evenly spray the prepared special substrate on the bare slope to form a layer of existing soil. An artificial planting layer that is loose, breathable and has a certain strength and fertility. By employing a two-layer spraying process, the substrate layer is sprayed first, followed by the plant seed layer. The traditional spraying substrate is mainly composed of peat, agricultural solid waste (crop straw, rice husk, sawdust, etc.), water retaining agent, adhesive and loam, among which peat accounts for 20-30% of the weight of the spraying substrate. ...

AI Technical Summary

Problems solved by technology

At present, less than 50% of the sludge has been disposed of as compost and building materials, and the rest of the sludge has been simply piled up temporarily, lacking an effective final outlet

[0005] In the prior art, although there is a similar document "Urban Sludge Spraying Substrate and Its Application in Landscaping" which discloses that urban sludge can be used for biological drying treatment to produce sprayed Green North substrate, but in terms of function On the one hand, there is no disclosure that it is specially prepared as the bottom spraying substrate; and, due to the different material selection, it is prepared into a spraying substrate completely different from that of the present application.

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