The failures of tailings dams have a major negative impact on the economy, surrounding properties, and people’s lives, therefore monitoring these facilities is crucial to mitigate risk failure, but this can be challenging due their size inaccessibility. In work, deformation processes at ?elazny Most dam (Poland) were analyzed using satellite Ad-vanced Differential SAR Interferometry (A-DInSAR) ...

이 연구에서는 안동댐 상류 낙동강 양안에 퇴적되어 있는 광물찌꺼기의 현황 및 용출특성을 평가하고자 하였다. 태백시 구문소를 기점으로 약 55 km에 걸쳐 80지점에서 퇴적 광물찌꺼기를 확인하였으며, 퇴적된 부피는 3,668 m3로 추정되며, 노출 면적은 1,429 m2으로 조사되었다. 광물찌꺼기에 대한 전함량 분석 결과, As, Cd, Pb, Zn의 평균 햠량은 각각 3,518, 15.39, 2,616, 2,307 mg/kg 이었다. 폐기물용출시험 결과에서는 Cd과 Pb이 환경기준을 초과하는 것으로 조사되었고, Zn이 상대적으로 높게 용출되었다. 연속추출 As는 주로 비결정질 Fe-Al 산화물 결합 형태의 비율이 가장 나타났고, Zn은 외부 환경변화에 따라 쉽게 용출될 수 다른 원소에 비해 평가되었다....

The South African gold mining industry has a legacy of abundant tailings dams, which have attracted the attention investors because their potential as cheaper secondary resource. In this we investigate study recovery from refractory calcine dam. Bulk mineralogy indicated silicates and iron oxides to be most phases. Scanning Electron Microscopy (SEM) showed exist in submicrometre micrometre size...

Mining typically involves extensive areas where environmental monitoring is spatially sporadic. New remote sensing techniques and platforms such as Structure from Motion (SfM) and unmanned aerial vehicles (UAVs) may offer one solution for more comprehensive and spatially continuous measurements. We conducted UAV campaigns in three consecutive summers (2015–2017) at a sub-Arctic mining site wher...

Wind erosion, transport and deposition of windblown dust from anthropogenic sources, such as mine tailings impoundments, can have significant effects on the surrounding environment. The lack of vegetation and the vertical protrusion of the mine tailings above the neighboring terrain make the tailings susceptible to wind erosion. Modeling the erosion, transport and deposition of particulate matt...

The disposal of sulfide mine tailings in an environmentally sound, yet cost-effective, manner is an issue facing most metal mines. Subaqueous tailing disposal is considered an attractive option for disposal that limits oxygen (O2) availability within sulfide mine tailings and controlling sulfide oxidation and the resultant acid mine drainage (AMD). Assuming that O2 profiles represent steady-sta...

Naphthenic acids (NAs) are natural constituents in many petroleum sources, including bitumen in the oil sands of Northern Alberta, Canada. Bitumen extraction processes produce tailings waters that cannot be discharged to the environment because NAs are acutely toxic to aquatic species. However, aerobic biodegradation reduces the toxic character of NAs. In this study, four commercial NAs and the...

AIM This study evaluates the effect of surface application of dried Class A biosolids on microbial populations within copper mine tailings. METHODS AND RESULTS Mine tailing sites were established at ASARCO Mission Mine close to Sahuarita Arizona. Site 1 (December 1998) was amended with 248 tons ha(-1) of Class A biosolids. Sites 2 (December 2000) and 3 (April 2006) were amended with 371 and 2...