TY - CPAPER T1 - Co-disposal techniques that may mitigate risks associated with storage and management of potentially acid generating wastes T2 - Mine Waste 2010: First International Seminar on the Reduction of Risk in the Management of Tailings and Mine Waste AU - Gowan, M AU - Lee, M AU - Williams, DJ ED - Jewell, R A2 - Jewell, R ED - Fourie, AB A2 - Fourie, AB DA - 2010/09/29 PY - 2010 PB - Australian Centre for Geomechanics PP - Perth CY - Perth C1 - Perth SP - 389 EP - 404 AB - A mine tailings disposal facility (TSF) remains a major source of risk for a mining operation. It is in reality the only structure on the mine, together with mine waste dumps, that has to “last forever” after the mining operation ceases. While the normal method of tailings disposal into a TSF is well understood and widely practiced, the alternative methods available using co-disposal may provide significant advantages for mining operations with particular issues or problems. Constraints on mining such as reduced or limited water supply, the need to recycle more water, higher water quality discharge requirements and post closure risks, are encouraging mine planners to consider alternatives to the traditional methods of mine waste management. One of the options available to planners and operators is the co-disposal of tailings and waste rock, particularly if potentially acid forming, for safer storage. In this paper, the general types of mine waste storage facilities (e.g. valley, paddock and in-pit storages) and the nature of tailings and waste rock are described, and co-disposal (and co-mingling) techniques to reduce the risks associated with the storage and management of wastes are discussed. The potential benefits of these techniques during operation and mine closure are described. UR - https://papers.acg.uwa.edu.au/p/1008_33_Gowan/ ER - DO - 10.36487/ACG_rep/1008_33_Gowan