Drywall can be recycled into new products, reducing waste and improving soil conditions. Recycling saves money and creates new business opportunities. Recycled drywall can be used for landscaping, but only new drywall is recommended due to chemicals in used drywall. Gypsum in drywall improves soil conditions and can be sold to cement factories. Boron in drywall can improve soil conditions, but too much can be harmful to plants. Dust is a concern in the recycling process, and air quality permits may be required.
Drywall, also called drywall, gypsum board, or gypsum board, can be recycled into new products to reduce waste and improve soil conditions. Recycling drywall saves builders and homeowners money and helps reduce the amount of waste dumped in landfills. The practice has also created new business opportunities for companies that convert new or used drywall into usable materials.
The most common material used for the interior walls of buildings is drywall, which is plaster covered with paper and cardboard. If the paper is removed, the wallboard can be recycled into new drywall. The paper, which acts as a fire retardant, inhibits the amount of plaster in recycled drywall. Studies are underway to reduce the amount of paper on building materials to create more efficient drywall recycling options.
Some recycled drywall is used for landscaping in agriculture, daycare, and recreation areas. Only new drywall is recommended for this purpose because used drywall often contains paint and other chemicals that could be harmful to the environment. An estimated 12% of used drywall is wasted as scrap, mostly from new construction projects. Home demolition, manufacturing, and renovations make up smaller percentages of drywall waste.
The gypsum contained in this building material is a natural mineral taken from arid sea beds. When gypsum-containing products are added to alkaline soil, it improves water penetration and neutralizes the acid content. Some plants benefit from the calcium and sulfuric properties of gypsum. Gypsum can also be sold to specific cement factories that use this mineral in their production processes.
Boron is added to drywall as a fire retardant. If the boron content of the soil is low, recycled drywall can improve conditions. This is especially true in soils that contain boron-depleting volcanic ash. Too much boron in the soil can kill some plant species, so its content should be checked before recycled siding board is added to the earth.
Drywall recycling is done by separating the plaster from the paper added to the drywall. The main concern of the process is dust. Drywall recycling equipment generally includes a system for dust collection and material screening. Water is often used to reduce the amount of dust generated when recycling drywall. In some areas an air quality permit is required before the process can be carried out.
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