1. When applied to coal mining tailings ponds and oil sands tailings ponds, the term "tailings" refers to fine waste suspended in water.

2. Time of acid generation for tailings area 3.

3. Ore mills generate large amounts of waste, called tailings.

4. average porosity of the sedimented tailings (m#/m#) defined as the ratio of the volume of voids to the total volume of sedimented tailings

5. average porosity of the sedimented tailings (m3/m3) defined as the ratio of the volume of voids to the total volume of sedimented tailings

6. Strange-colored tailings ponds and old, rusted equipment are scattered around.

7. average dry bulk density of the deposited tailings (tonnes/m

8. The tribe fear that tailings from the mine may contaminate local waterways.

9. • West Adit - Appear to be uranium tailings likely spilled from the mill.

10. Microbial oxidation of ores, tailings, and overburden contribute s to ARD.

11. Flux of acidity and heavy metals from a tailings area 5.

12. The tailings ponds are the largest toxic impoundments on the planet.

13. In tailings the primary mode of oxygen transport is diffusion through porous spaces.

14. West Adit – Appear to be uranium tailings likely spilled from the mill.

15. The oxidation of sulphide-rich mine tailings stored on land by acidophilic bacteria is frequently associated with severe environmental degradation, as metal-rich acid drainage from the tailings contaminates groundwater and surface runoff.

16. This can include a tailings dam (impoundment and pond), decant structures and spillways.

17. So this is an absolutely -- this is one of the larger tailings ponds.

18. OSEC expressed concerns that Albian’s tailings management plan did not constitute a major technological improvement.

19. The barite is a flotation product from the tailings of the former Buchans mines.

20. On average, worldwide, there is one big accident involving a tailings dam each year.

21. Hence, they started off digging and panning for surface gold, rinsing their tailings in wooden sluices.

22. The quality and characteristics of cementitious Backfills are remarkably influenced by its intrinsic (i.e., tailings, cement

23. Water quality of acid mine lakes is strongly affected by groundwater inflow from the mine tailings.

24. The properties of the saturated tailings foundation soils were critical to the overall dam design.

25. Contributing factors include acid rock drainage, subsidence, open shafts, tailings impoundment failures, old buildings and waste dumps.

26. First, a field investigation was conducted in which RMB was spread in aggregates before mixing with tailings.

27. Average trace element mobilities were generally higher in the tailings than in the underlying sandy colluvial and clayey alluvial soils and also showed an increase where the pH values of soils and tailings were lower than 5 and 3.5 respectively.

28. Permafrost encapsulation of the tailings would be used to control acid mine drainage and metal leaching.

29. The Joint Panel believes that Albian’s proposed tailings management plan in concept is reasonable based on current technology.

30. There are fears that acid drainage from mine tailings may destroy several local lakes and some fisheries habitat.

31. Associate Projects APC-1 Abstract CD-2 Subaqueous Deposition of Tailings in the Strathcona Treatment System, September 1996.

32. Tailings that have accumulated from mining and ore processing are stored in heaps, ponds or tailing dams.

33. Tailings that have accumulated from mining and ore processing are stored in heaps, ponds or tailing dams

34. When microorganisms are employed to extract minerals from the tailings and ores, the process is called Biomining/ microbial mining

35. Acid Base Accounting (ABA) test results for Dam No. 2 indicate that the tailings are not acid generating.

36. Dust from the tailings pond began to blow over the countryside again in 19 starting on 10 February, a Sunday.

37. Hibbing Taconite Company - Tailings Basin Buttressing Project January 2, 2020 Page 3 The commissioner shall allow compensatory mitigation as a …

38. Bioleaching converts the arsenic present in the tailings into ferric arsenate, which is a stable and environmentally benign end product (EPA).

39. Keith Mine, Brucite-rich, serpentine mine tailings) and olivine dissolution rates at 0.1 bar P(CO 2) (Greg Dipple, personal communication, 2018)

40. Paste tailings are used in several locations around the world including Sunrise Dam in Western Australia and Bulyanhulu Gold Mine in Tanzania.

41. A promising process, oil agglomeration flotation(OAF), has been developed for the recycling of ultrafine molybdenite resources from a molybdenum mine tailings in Zhejiang.

42. In this paper, the research process of the fire - proof calcium silicate board trial - produced with theindus trial tailings - felspar powder is reported.

43. Conventional lime treatment is carried out on a year round basis at four adits as well as in the tailings impoundment during spring freshet.

44. With few exceptions, these Agates are only found in three tiny sections of 100 year old copper mine tailings in the Keweenaw copper country of Northern Michigan

45. Major liquid effluents from the smelter site are collected and treated at the weak acid water treatment plant, combined with slag flotation concentrate tailings and are monitored.

46. And if the tailings are not isolated from the atmosphere, the sum of exposures for all those years could be large in absolute terms.. . Basically,.

47. At a former As mine site, Arsenopyrite oxidation has resulted in formation of scorodite and As-bearing iron hydroxide, both in host rock and mine tailings

48. Aerial photo (1972) of the Port Radium mine site indicating the tailings deposition areas used during the uranium and silver mining operations Gamma and radon surveys have been carried out.

49. Furthermore, particular care needs to be taken for the fine-grained nature of many tailings deposits (and of fine-grained sediments released by abrasion and weathering of shaley waste rock).

50. Bioleaching, given access to a ready supply of iron, either internally generated or through the addition of pyrite from external tailings, can handle much higher levels of arsenic for neutralization

51. Mine drainage from adits (containing up to 9,300 μg/L of Sb), mine waste dumps, and the leachate from mine tailings contribute Sb and arsenic (As) into nearby Paludžanka Creek and groundwater.

52. Moreover, oil extracted from these sources typically contains contaminants such as sulfur and heavy metals that are energy-intensive to extract and can leave tailings, ponds containing hydrocarbon sludge, in some cases.

53. The tar sands consume more water than any other oil process, three to five barrels of water are taken, polluted and then returned into tailings ponds, the largest toxic impoundments on the planet.

54. We evaluated the use of live cells of Mesorhizobium amorphae CCNWGS0123 as a new, relatively inexpensive and environment-friendly adsorbent material for removal of toxic metals from aqueous solutions, such as mine tailings leachate.

55. R&D Areas Metals in the environment Contaminated sites Mining Advanced processing Reliability of infrastructure Mining automation Earth sciences Health and safety Recycling Tailings, slag, waste rock Effluents, acid rock drainage Geophysics, ground control

56. This is likely due to the prevailing currents in the open ocean environment and suggests that at a 50m disposal depth metals from the tailings can still be accumulated by the near shore biota.

57. These same changes will not occur as rapidly in the tailings basins due to their size, and to the slow accumulation of erosion sediment from spring run-off and major precipitation events from the limited surface drainage areas.

58. The Albian Sands Muskeg River Mine application outlines the proposal to integrate the Shell Jackpine Mine and Muskeg River Mine through construction of bitumen froth pipelines, as well as tailings reclaim water lines, and allows for staged construction of both projects.

59. Research at the Porgera Gold Mine is focusing on developing a method of combining tailings products with coarse waste rock and waste muds to create a product that can be stored on the surface in generic-looking waste dumps or stockpiles.

60. In the case of loss of structural integrity for tailings dams, human lives shall be deemed to be threatened where water or slurry levels are at least #,# m above ground or where water or slurry velocities exceed #,# m/s