Essays about: "Mn concentration"

Showing result 11 - 15 of 37 essays containing the words Mn concentration.

  1. 11. Cobalt and nickel concentrations in the Uppsala clay deposits : solubility and risk assessment

    University essay from SLU/Dept. of Soil and Environment

    Author : Ali Reza Sadeghi; [2020]
    Keywords : heavy metals; soil contanimation; geochemically active fraction; leaching test; guideline value; site-specific guideline value;

    Abstract : Heavy metals create a contamination problem in soils. Examples of heavy metals are Ni, Co, and Cu. Soil environment and minerals existing in the soil such as Fe and Mn oxides affect the presence of these heavy metals. In this thesis, the cobalt and nickel concentrations of selected soil samples from different locations in Uppsala were determined. READ MORE

  3. 12. Investigation of the Metal Content in Cress Seedlings fed with increased Concentration of Lead & Iron Solutions

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Nikita Burton; [2020]
    Keywords : Cress; iron; lead; metals; acidified digestion; MP-AES; ICP-MS;

    Abstract : Metals are essential nutrients for plant health, but not all metals are necessary and can sometimes be harmful towards plants depending on factors such as species, elemental composition in the soil and concentration of a metal. Iron (Fe), which is one of the most abundant metals in the earth’s crust is also one the most important nutrients for plant growth, as it is responsible for metabolism. READ MORE

  4. 13. Kartering av kadmiumhalt i matjord med portabelt röntgenfluorescensinstrument

    University essay from SLU/Dept. of Soil and Environment

    Author : Elin Laxmar; [2018]
    Keywords : Cd; jord; kärna; PXRF; markkartering;

    Abstract : Cadmium (Cd) is a nonessential heavy metal that can be toxic to living organisms even in small amounts. Cd occurs naturally in all type of soils but have also been added trough soil amendments and atmospheric fallout. READ MORE

  5. 14. How does drainage affect hydrology and hydrochemistry in boreal peatlands?

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Albin Enetjärn; [2018]
    Keywords : trenching; ditching; draining; dikning; dikningseffekter; torvmark; markavvattning;

    Abstract : Boreal peatlands are substantial terrestrial carbon storages. They are also important for the function of several large-scale cycles and systems that humanity benefits from. Drainage affects peatlands by establishing a new, lower equilibrium for the groundwater table. READ MORE

  6. 15. Vete då och nu : släktskap och mineralkoncentration

    University essay from SLU/Department of Molecular Sciences

    Author : Alies Hellsten; [2017]
    Keywords : einkorn; emmer; spelt; vete; mineralkoncentration i kärna;

    Abstract : Det moderna brödvetet utgör en stor del av kosten och är en viktig källa till mineraler i humandieten världen över. Koncentrationen av mineraler i vete-kärnan kan i vissa fall täcka mer än 70% av det rekommenderade dagliga intaget för Cu, Se, Fe, Mg, Zn, Mn och P vardera. Andra viktiga mineraler som avses i denna rapport är K och Ca. READ MORE