TY  - CPAPER
AU  - Dobril Valchev
TI  - PASSIVE TECHNOLOGY FOR TREATMENT OF ACID MINE DRAINAGE FROM THE AREA AROUND -RADKA- MINE IN BULGARIA
T2  - 25th International Multidisciplinary Scientific GeoConference Proceedings SGEM2025, Science and Technologies in Geology, Exploration and Sustainable Mining
PY  - 2025
SP  - 155
EP  - 162
DO  - 10.5593/sgem2025/1.1/s02.20
PB  - STEF92 Technology
ER  -