Penurunan Ion Merkuri Dalam Air Sungai Batang Toru Provinsi Sumatera Utara Me…

Sidempuan salak rind was one of the abundant amounts of waste in the South Tapanuli Regency. Sidempuan salak rinds contain many celluloses so that they can be used optimally as activated charcoal. PT. X is a gold mining company in Batang Toru District, South Tapanuli Regency, North Sumatra Province. Activated charcoal from the Sidempuan salak rinds is expected to be able to reduce the concentra…