Essays about: "sedimentation"

Showing result 41 - 45 of 166 essays containing the word sedimentation.

  1. 41. Metal mobility and transport from an oil-shale mine, Lake Nõmmejärv, Estonia

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Åsa Ekelund; [2020]
    Keywords : Mine waste; Heavy metals; Oil shale; Lake sediments; Lake Nõmmejärv; Human impact; Kurtna kame field; Estonia.;

    Abstract : Mining activities have a large impact on the environment, for example by the release of heavy metals from acid mine drainage and erosion of mine waste. North-eastern Estonia has the largest commercially exploited oil-shale deposit in the world. READ MORE

  3. 42. Dating lake bottom sediment by searching for 210Pb using gamma-ray spectroscopy

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : William Bäckström; [2020]
    Keywords : sediment dating; dating; spectroscopy; gamma-ray; nuclear; lead; HPGe detector; sedimentation; sedimentation rate; attenuation; migration; limnologist; least squares;

    Abstract : In a collaboration with limnologists at Uppsala University a planar HPGe detector has been used to find 210Pb in lake bottom sediment in hopes of getting an estimation for the sedimentation rate. Using a least squares fit to the data, the sedimentation rate was calculated to 0.08 ± 0. READ MORE

  4. 43. Internal geology and emplacement processes of Kimberlites, Case Study from the Tsabong Kimberlite Field, Botswana

    University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

    Author : Mpho Ndebele; [2020]
    Keywords : Kimberlites; Geology; Emplacement Processes; Botswana;

    Abstract : The Crateceous (85 Ma) MK1 pipe is part of the Tsabong kimberlite cluster located approximately550km south west of Gaborone and geologically found within the Kapvaal Craton. The Tsabongkimberlite field consists of 86 known kimberlites. The MK1 pipe is the largest of this cluster at 140ha,1. READ MORE

  5. 44. Modelling of Water Exchange in Flommen Lagoon System in Skanör-Falsterbo, Sweden

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Kenny Lay; Kristian Ångbäck; [2020]
    Keywords : water exchange; sedimentation; flommen lagoon system; iph-eco; modelling; Technology and Engineering;

    Abstract : The Flommen Lagoon system is located in Skanör-Falsterbo, Sweden. It hosts a diverse and sensitive ecosystem. There have been concerns about the water quality in this lagoon due to impaired water exchange. READ MORE

  6. 45. An investigation of the Mechanisms Behind the Pharmaceutical Removal in Ekeby Wetland WWTP

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Paula Luu; [2020]
    Keywords : Constructed wetlands; pharmaceuticals; wastewater; removal efficiency; mechanism.; Anlagd våtmark; läkemedel; avloppsvatten; avskiljning; mekanism.;

    Abstract : Pharmaceutical residues are being released into the aquatic environment through domestic wastewater effluents all around the world. Ekeby wetland located in Eskilstuna has been shown to degrade pharmaceutical residues in wastewater but the mechanism of how and where in the wetland these substances are removed were not known. READ MORE