Metal Extraction from Mine Wastewater Sludge - Leaching with ammonia and sulfuric acid
Increasing demand for metals might lead to extraction of metals from materials, previously, thought of as waste. A letter by the Swedish Environmental Protection Agency and Geological Survey of Sweden from 2017 encouraged new and innovative waste treatments as well as recycling of waste produced in association with mining. The conventional treatment of acid mine wastewater creates large volumes of
