Essays about: "Bentonite"

Showing result 6 - 10 of 16 essays containing the word Bentonite.

1. 6. Increased leaching of metals as a result of foundation work

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Emmy Mattisson; [2018]
   Keywords : Principal components analysis; Modified double mass analysis; Geochemistry; Sulphide bedrock; Remediation methods; Surface water pollution;

   Abstract : Heavy metal contamination in the environment is a global issue that is likely to increase in the future. This report investigates a construction area in which increased concentrations of the heavy metals cadmium, cobalt, copper, nickel and zinc and a decreased pH-value has been observed in the surface water recipient. READ MORE

3. 7. Radiation Effects on KBS-3 Barriers: SKB’s work so far

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Ismael Safi; [2017]
   Keywords : KBS-3; Repository; Radiation; Bentonite; Montmorillonite;

   Abstract : In the Swedish concept for final disposal of spent nuclear fuel, referred to as KBS-3, a three-layered protection system is used. The system consists of a copper canister holding the spent nuclear fuel deposited 500 meters in a repository built in groundwater saturated granitic rock. READ MORE

4. 8. Pretreatment Methods for Manganese Containing Anode Sludge

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Johan Stenman; [2017]
   Keywords : Manganese; Zinc; Lead; Strontium; Reduction; Anode; Sludge; Slime; Metallurgy; Pyrometallurgy; Chamber; Rotary; Furnace; Agglomeration;

   Abstract : This master thesis work examines whether it is possible to separate lead from an electrolytic sludge rich in manganese using pyrometallurgical treatment, and also attempts to determine the optimum process parameters for such a treatment. It also includes a theoretical study of the possible applications for lead and manganese, as well as thermodynamic calculations predicting the behaviour of the material at increasing temperatures. READ MORE

5. 9. A palynological study across the Ordovician Kinnekulle bentonite, Sweden

   University essay from Lunds universitet/Geologiska institutionen

   Author : Johan Nordas; [2015]
   Keywords : Acritarch; bentonite; Ordovician; Borenshult-1; Sweden; Kinnekulle; Earth and Environmental Sciences;

   Abstract : A palynological analysis across the Ordovician (Sandbian) Kinnekulle bentonites in south Central Sweden has been performed. The sedimentary successions were recovered from the Borenshult -1 drillcore in the Motala area, south central Sweden. The lithology is dominated by mudstones and two thick bentonite beds. READ MORE

6. 10. The swelling pressure of bentonite and sand mixtures

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Sandra Sánchez González; [2013]
   Keywords : Swelling pressure; bentonite and sand mixture; crystalline swelling; osmotic swelling; mechanistic model; montmorillonite.;

   Abstract : The compacted bentonites are used as buffer and backfill materials for engineering barriers for high-level nuclear waste repositories located underground. For this purpose, it is very important to evaluate the swelling characteristics of this clay. The swelling capacity is one of the most important properties of the bentonite clay. READ MORE