Saint-Gobain, by means of its constructing merchandise subsidiary CertainTeed, has put in recycling expertise at its gypsum wallboard plant in Silver Grove, Ky., that may enable the plant to recycle and reuse 15,000 tons of paper per 12 months that in any other case would have been despatched to a landfill. The mission is a part of the corporate’s new international Develop and Affect technique, which incorporates lowering waste and rising the circularity of uncooked supplies at its manufacturing websites. CertainTeed’s facility in Silver Grove is the biggest gypsum wallboard plant in North America and one of many largest on the earth. The plant, which sits on 200 acres of land, began up operations in 2000 and right now is residence to 270 workers.
Gypsum wallboard is constituted of a gypsum slurry that’s poured and dries between two sheets of paper. Some scrap materials, consisting of gypsum and paper, is often created each time a manufacturing line is began up or shut down, or when manufacturing tools is modified to fabricate completely different sizes of wallboard. CertainTeed is ready to seize and recycle a lot of the gypsum on this scrap materials in any respect of its gypsum vegetation, together with Silver Grove. However the scrap paper created on this course of couldn’t be recycled by means of conventional means, as a result of the paper was coated in gypsum.
The brand new recycling expertise in Silver Grove works by grinding the waste gypsum and waste paper down into finer particles, permitting the plant to seize and internally recycle each the gypsum particles and the paper particles, that are sorted after which reintroduced to the manufacturing course of on the plant.