Wood waste and GAIN recycling unit
The importance of wood waste is evident from the fact that this type of waste constitutes about 10% of the total materials that are dumped in landfills every year.
With this statistic, it can be claimed that after concrete, wood waste is the second group of construction and demolition (C&D) waste. It should be noted that the amount of this waste reaches 20-30% of the total C&D of the building.
The recycling rate of wood obtained from C&D is significantly lower than other C&D materials such as concrete and structural steel. It is also significant to refer to this statistic that according to the Construction Materials and Recycling Association (CMRA), the recycling rate of concrete is about 82% and according to the Steel Recycling Association, the amount of structural steel recycling is about 98%.
Referring to historical data in this field can also be used as real examples for appropriate policy making. In the last ten years, due to the onset of climate change and the increase in temperature and drought in the world, forest fires have increased more than before. On the other hand, human error is also effective in killing nature.
On the other hand, incorrect exploitations such as illegal cutting and harvesting of trees for sale, settlement and conversion of forests into pastures and agricultural land and issues of this kind lead to soil erosion and destruction of forests.
About 70.6 million tons of municipal wood waste was generated in the United States in 2010. These wastes included 48% municipal solid waste and 52% construction and demolition (C&D) waste.
Years ago, the Construction Materials and Recycling Association estimated that 29 million more tons of waste would be available for recycling after licensing for current levels of recycling, incineration, and non-use materials.
Specifically, the total annual production for C&D wood waste is estimated at 36.4 million tons, of which 29.7 million tons come from demolition activities and 6.7 million tons from construction.
According to a study conducted in the United States, about 10 to 15 percent of wood used in new construction comes from recycling or construction waste streams.
Wood Recycling technology, discover this industry • RecyclingInside
Findings show that sometimes wood cannot be recycled due to chemical or other issues. Therefore, an unusable source of 17.3 million tons of urban wood waste remains for annual recycling, which is considered an environmental disaster.
Wood waste can be turned into an attractive industry and it can be used for practical and important purposes, some of which we mention:
1- Production of pressed board
2- Activated charcoal (it is used to purify water, recycle gold, improve color and taste in drinks and fruit juices.)
3- Making carbon fibers
4- wood plastic composite
It is worth noting that the wood waste from C&D activities is delivered to waste recycling centers for processing. However, there are markets for boards, lumber and scrap wood that can still be used.
What will be the role of GAIN company in the field of wood waste recycling?
GAIN recycling unit sorts the wood from C&D R&D that is received in mixed form at C&D processing centers before entering the feeding system.
For large pieces of wood, volume reduction equipment such as compactors or hydraulic shears are used to reduce the size of the material so that these materials can enter the wood chipping systems.
Conveyor belt systems also provide for further classification of foreign materials such as metals containing iron before entering the crushing equipment. The obtained product will be sold after screening to the required fiber size.
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