Essays about: "metal sulphide precipitation"

Found 4 essays containing the words metal sulphide precipitation.

1. 1. Utilizing wood ash to stimulate algal growth in mine waters from northern Sweden

   University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

   Author : Katelyn Murphy; [2023]
   Keywords : acid rock drainage; acid mine drainage; controlled eutrophication;

   Abstract : Acid rock drainage (ARD), caused by the oxidation of sulphide bearing minerals, continues to be an environmental impact of both closed and operational mines, leading to waters with low pH values and high metal concentrations (Park et al., 2019). READ MORE

3. 2. Treatment of Historic, Sulphide-rich Mine Waste from Ljusnarsberg Using Alkaline By-products

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Sanna Ekblom; [2016]
   Keywords : ;

   Abstract : Alkaline by-products were used in a leaching test to study their effect on highly weathered, sulphide-rich mine waste from Ljusnarsberg for the attempt to neutralize the leachate and immobilize trace metals through precipitation of secondary minerals. Leaching was performed at liquid/solid ratio of 0.5-20 with 10 % alkaline material. READ MORE

4. 3. In-situ Removal of Hydrogen Sulphide from Landfill Gas : Arising from the Interaction between Municipal Solid Waste and Sulphide Mine Environments within Bioreactor Conditions

   University essay from KTH/Industriell ekologi

   Author : David Andrew Lazarevic; [2007]
   Keywords : Hydrogen sulphide; sulphate reduction; sulphate reducing bacteria; metal sulphide precipitation; sulphide mine environments; acid mine drainage; bioreactor; alternative waste cover.;

   Abstract : This project was compiled in co-operation with the Royal Institute of Technology, Stockholm and Veolia Environmental Services (Australia) at the Woodlawn Bioreactor in NSW, Australia. Hydrogen sulphide is an unwanted component of landfill gas, raising occupational health and safety concerns, whilst leading to acid gas corrosion of power generation equipment and increased emissions of SOx, a primary constituent of acidification. READ MORE

5. 4. Modelling reactive transport of acid mine drainage in groundwater : Effect of geochemical processes spatially variable flow source location and distribution

   University essay from KTH/Industriell ekologi

   Author : Tegenne Tekelu Geberetsadike; [2004]
   Keywords : Acid Mine Drainage AMD ; reactive transport; geochemical processes; flow variability; pH buffering; metal attenuation; groundwater; modelling; LaSAR-PHREEQC;

   Abstract : Impacts from mining waste deposits on groundwater resources have been recognized invarious parts of the world; though varied in scale depending on the composition of mineralsbeing mined, the level of technology employed and environmental commitment of thedevelopers. Mining activities usually involve milling, concentrating, and processing of oreswhich will result in a huge amount of waste, called tailings, usually deposited inimpoundments as a slurry, composed of fine grained geological material (uneconomicalminerals), chemicals utilized in the processs, and water. READ MORE