Environmental Impacts and Mitigation of TLC Mine Dewatering Operation, Sindh, Pakistan. | Bahria University Research Journal of Earth Sciences 2018

Author(s)

YASMIN NERGIS Department of Earth and Environmental Sciences Bahria University, Karachi Campus, Pakistan

MUHAMMAD JAHANGIR KHAN Department of Earth and Environmental Sciences Bahria University, Karachi Campus, Pakistan

NAEEM A. MUGHAL Department of Earth and Environmental Sciences Bahria University, Karachi Campus, Pakistan

MUGHAL SHARIF Environmental Research Center, Bahria University, Karachi Campus, Pakistan

JAWWAD A. BUT Environmental Research Center, Bahria University, Karachi Campus, Pakistan

Abstract

This study aimed at identification of dewatering hazards and impacts in block-II of Thar coal mining areas. This study focuses impacts of dewatering on soil, ground water, flora & fauna, physical local environment and geomorphology of the block-II. This study is based on physiochemical tests of water samples collected from 58 community wells in Thar coal mining areas of block-II. There are three aquifers in Thar coal mining areas. The constraints noted above are likely to pose moderate to major hazards at and during the premining, mining and post-mining stages. The presence of aquifers at the subsurface and basal level is considered a major hazard at all the three stages. The extracted natural ground water from first aquifer is being disposed in multiple depression areas, near villages of Gorano, Kathar and Dhukar Shah. The dewatering of aquifer from TLC mining area is being discharged in Gorano pond. With the progress in coal mining, the groundwater is being dewatering from top aquifer. It is expected that the dewatering surplus from the mining action must not be depleted in the adjacent water bodies to avoid the dewatering surplus to be infused back in the aqu ifers. Future decline in water table in community wells therefore a mitigation plan needs to be designed for community development. The dewatering may be discharged into Arabian sea through drainage patterns and gravitational flow.

Publication Details

Page(s) 12-16

DOI DOI not available

Published Journal: Bahria University Research Journal of Earth Sciences, Volume: 3, Issue: 1, Year: 2018

Keywords

Ground Water Hazard Pakistan TDS Thar coal dewatering

References

References are not available for this document.

Citations

Citations are not available for this document.