Environmental Remediation: Gypsum can be used to mitigate soil erosion and control dust on development web-sites. It's also used in wastewater treatment method processes to remove impurities. Map of gypsum deposits in northern Ohio, black squares show The placement of deposits, from "Geography of Ohio", 1923 Gypsum is used in https://www.propanraya.com/id/produk/eco-gypsum-ee-4050