Case Study: Coal Mining Flow Chart | Southern Africa Resource WatchAug 24, 2010 . Coal mining causes the release of carbon dioxide (CO2) and methane, both of which are greenhouse gases causing climate change. . Impact of water use on flows of riv-ers and consequential impact on other land-uses. Dust nuisance. Tunnels, sometimes damaging infra-structure . Country: South Africa.coal mining flowchart south africa,coal mining flowchart south africa,Multi-seam coal mining - SAIMMdesign a multi-seam mining layout for Khutala. Colliery taking cognizance of the following: ➤ Panel design. ➤ Ventilation flow. ➤ Superimposition. ➤ Infrastructure. ➤ Men, material and product flow. Khutala Colliery is a mining operation headed by BHP Billiton Energy Coal South. Africa (BECSA). The colliery is located in the.