Roof greening light host material made from industrial and agricultural wastes

Abstract

The invention provides a roof greening light host material made from industrial and agricultural wastes and is characterized in that the industrial and agricultural wastes serve as the major ingredients to prepare a light roof greening planting substrate; the substrate is a compound with the following main materials: flyash, coal cinder, straw grains, garden wastes and yellow soil; the proportions of the materials are as follows: 11-20% of flyash, 10-22% of coal cinder, 20-25% of straw grain, 20-32% of garden waste and 18-20% of yellow soil. In the invention, the common industrial and agricultural wastes are applied to the light roof greening planting substrate, which facilitates reduction of the cost of roof greening materials, improves comprehensive utilization level of natural resources and promotes cyclic utilization of the industrial and agricultural wastes and protection of the natural environment. The material of the invention has the advantages of few component types, easily available materials, low cost, environmental protection and high efficiency and suitability for large-scale promotion throughout the country.

Description

technical field [0001] The invention relates to a roof greening material, in particular to a roof greening light matrix material utilizing industrial and agricultural waste. Background technique [0002] In modern society, with the growth of urban population and the expansion of urban area, the area of ​​urban green space is decreasing, while the area of ​​idle roofs is increasing. These exposed roofs not only affect the bird's-eye view of the city, but also affect the ecological effect of the city, leading to the "desertification" of the city. Therefore, roof greening, as a form of environmental beautification and greening that is different from ground greening, has gradually been recognized by more and more people for its ecological, economic and social benefits. The load-bearing capacity and high cost of the roof obviously inhibit the popularity of green roofs. To reduce construction and maintenance costs and management difficulties as much as possible, light green roof...

AI Technical Summary

Problems solved by technology

However, this patent has the following disadvantages: 1. The main component of the patent matrix is ​​peat, and the price of peat is higher than that of waste materials. If it is put into production, the cost will increase

2. Among them, perlite and ceramsite are commonly used matrix components in gardening, and the price is higher than that of industrial and agricultural waste materials, which further increases the cost of this matrix

3. The sawdust and coconut peat used in this patent do not belong to mass waste. The scope and area of ​​such waste are limited, the quantity is relatively limited, the purchase and transportation costs are high, and the supply may be insufficient in the production chain, so it is not suitable Widely promoted nationwide

However, this patent has the following disadvantages: 1. The roof greening matrix (ecological nutrient soil) has many components, 11 kinds in total. It takes time and effort to purchase the materials completely. If it is put into production, the cost is relatively high; 2. Among them, perlite and vermiculite It is a commonly used matrix component for horticulture, and its price is higher than that of industrial and agricultural waste materials, which further increases the cost of this matrix; 3. The shredded coconut, sawdust, bagasse, etc. used in this patent do not belong to mass waste, and such waste produces The scope and area are limited, the quantity is relatively limited, the purchase and transportation costs are high, and the supply may be insufficient in the production chain, so it is not suitable for large-scale promotion across the country; 4. In addition, "EM" bacteria and non-metallic bacteria are added to this matrix mineral

These two components are less common and difficult to obtain and operate. The composition ratio of non-metallic minerals is not specified, and the source and price of the bacteria are not explained in the patent. It is difficult to promote it on a large scale.