An innovative method of monetising overburden from quarry and gravel pit aggregate production has been developed by a leading German quarrying equipment manufacturer. Guy Woodford reports
BHS-Sonthofen’s dry Combimix process removes clay adhesions from screen waste produced in quarries and gravel pits.
According to the company, operators are saying they can convert more than 90% of contaminated feed material into saleable rock grade using the Combimix system. At the same time, the dry process signific