Recently, the Ministry of environmental protection (Ministry of environmental protection order No
. 
44) classified management directory of environmental impact assessment of construction projects (2021 Edition), which, from January 1, 2021, stone processing does not belong to construction projects! That is to say, environmental protection does not need to be approved
. 
It is not a pollution project! Stone is all physical processing, no harmful waste, will not form secondary pollution! Stone industry is a mechanical physical processing process, its energy consumption is naturally greatly reduced, and it will not produce and produce harmful gases
. 
Moreover, wet operation is adopted to effectively reduce the dust
. 
Even if a small amount of waste residue, waste and other wastes are produced in the production, it is also non-toxic waste and will not form secondary pollution
. 
There are no kilns in the stone industry
.
Different from cement, glass, ceramics, bricks and tiles, lime and other traditional bulk building materials, the stone industry is not mining plus kilns, but mining plus mechanical cutting
.
So it doesn’t need coal itself, it only uses electricity and oil
.
Stone processing using recycled water, the discharge of wastewater is also up to standard! China Stone Industry Association has carried out on-the-spot investigation on the key stone production areas in Fujian, Shandong, Guangdong, Guangxi, Hubei, Xinjiang and other key provinces in China
.
It is found that the stone industry in these areas basically adopts the recycling water, does not use any chemicals, and only relies on ordinary clean water to cool the mining and processing tools
.
Even if the waste water is discharged, it is up to the standard
.
The waste residue is recycled to make concrete and artificial stone
.
The stone powder, stone slag, waste and other wastes produced in the mining and processing have been used to make concrete aggregate, high-strength brick, artificial stone filler, light stone powder wall material, paving stone, curb and so on, basically achieving the recycling of waste
.
Therefore, as long as the government and enterprises manage a little, it can become a pollution-free and environment-friendly industry
.
Stone industry is the most environmental protection and low comprehensive energy consumption in building materials industry
.
The average radioactivity of natural stone is lower than that of bulk building materials such as ceramics, bricks and tiles
.
In addition, the comprehensive energy consumption of ten thousand yuan added value of stone mining and processing industry is only 0.3 tons of standard coal, which is much lower than that of cement, glass, ceramics, brick and tile, lime and other traditional bulk building materials industries
.
It is the most energy-saving industry in building materials industry
.
Compared with the national building materials industry in 2007, the comprehensive energy consumption of ten thousand yuan added value of building materials industry is 4.88 tons of standard coal (calculated according to the price in 2005, the same below) and the national unit GDP (ten thousand yuan) in 2007 Compared with the energy consumption of 1.16 tons of standard coal, the comprehensive energy consumption of ten thousand yuan added value of the stone industry can be regarded as a small drop
.
From mining, processing to use, the stone industry follows the principles of energy conservation and environmental protection
.
Even if a small amount of waste such as garbage and sewage is produced in production, it is slightly non-toxic and will not cause secondary pollution to the environment
.
And these wastes can be used as ceramic raw materials and other building materials
.
Therefore, the stone industry is not a high pollution industry, but a green and environment-friendly industry
.
To sum up, from mining, processing to use, the stone industry is the most energy-saving, even in the production of a small amount of waste, sewage and other waste, is also slightly non-toxic, will not cause secondary pollution to the environment, therefore, it is absolutely not a high pollution industry..
.
