Sökning: "sulfidlera"

Hittade 3 uppsatser innehållade ordet sulfidlera.

1. 1. High levels of nickel from sulphide soil in Umeå's raw water : Modeling of groundwater flow and mass transport in Forslunda aquifer

   Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

   Författare :Merhawi Belai; [2024]
   Nyckelord :nickel; sulfide; sulphide; groundwater; modeling; mass transport; Feflow; Umeå; nickel; sulfid; monosulfid; grundvatten; modellering; masstransport; Feflow; Umeå;

   Sammanfattning : The raw water in some of Umeå's abstraction wells has shown high nickel levels for more than a decade. The cause has not been determined but there is an investigation from 2010 where the results indicate sulphide clay found adjacent to two basins used for artificial infiltration. LÄS MER

3. 2. Kartläggning av sulfidleror i Uppsala stad

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Elin Edberg; [2012]
   Nyckelord :;

   Sammanfattning : A large part of the center of the city of Uppsala is located on postglacial clay. This clay often contain sulfur, this in the form of sulfide, and thus it is generally called sulfide clay (or sulfidlera in Swedish). The amount of sulfide in the clay varies from location to location. LÄS MER

4. 3. Studie och riskanalys av sulfidleror i Uppsala stad

   Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

   Författare :Håkan Wennerberg; [2005]
   Nyckelord :sulphide clay; pyrite; monosulphides; oxidation; NNP; batch test; leaching; risk analysis;

   Sammanfattning : Most of the city of Uppsala rests on postglacial clay with a varying content of sulphur. The sulphur occurs naturally in the clay in reduced form as sulphide and the clay is for that reason usually called “sulphide clay”. LÄS MER