Acid mine groundwater in lignite overburden dumps and its
Jul 01, 2001#0183;#32;The Rhineland lignite mining area with a production of million tons of lignite (1996) is predominant compared with the Lusatian mining area ( million tons brown coal in 1996) and the lignite mining area in Central Germany ( million tons brown coal in 1996; for location, see Fig. 1). At present four open pit mines are active in the Rhineland mining area.