1Where do waste materials go?
- Major portion of the waste rock is
- disposed of in piles at the source
- removed from the preparation plant
- disposed of in large piles or banks
2can be reused in the construction of impoundments and haul roads
Mine waste material
3can be used as granular base/subbase, flowable fill aggregate or fill, engineered fill or embankment, asphalt aggregate.
Certain tailing waste
4Problems of mining techniques
land-use change and negative impacts on environments including Deforestation, Erosion, Contamination, Alteration of soil profiles, Contamination of local streams and wetlands, Noise pollution
5Possible Environmental Impacts of Irresponsible Mining (5)
1. Flooding
2. Erosion
3. Subsidence
4. Water & Air Pollution
5. Damage to wildlife & habitat
6Measures to prevent or mitigate the harmful effects of irresponsible Mining
- Topsoil replacement using uncontaminated soil
- Reintroduction of flora and fauna**
- Neutralizing acidic waters
- Backfilling and sealing of abandoned underground mines
- Stabilizing of slope of impacted area to reduce erosion
- Use new, alternative low-impact mining techniques
- Reusing Mining Waste
7Government/Organizations in the Implementation of Environmental Programs
Mines and Geo-sciences Bureau (MGB) & Philippine Mine Safety and Environment
8a government agency of the Philippines under Department of Environment and Natural Resources (DENR)
Mines and Geo-sciences Bureau (MGB)
9responsible for the conservation, management, development and use of the country's mineral resources, including those in reservations and public lands
Mines and Geo-sciences Bureau (MGB)
10the forerunnerin the promotion of occupational safety and health, sound environmental management and socialresponsibility in the Minerals Industry.
Philippine Mine Safety and Environment