Essays about: "organic zinc"

Showing result 1 - 5 of 37 essays containing the words organic zinc.

1. 1. Mercury accumulation in lake sediments on different time scales – the influence of algal primary production

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

   Author : Anne Rebotzke; [2023]
   Keywords : mercury; lake sediment; primary productivity; algal scavenging; biogenic silica; diatom proxy; chlorophyll-a; organic matter;

   Abstract : The aim of this work is to test the proposed approach of algal scavenging as a driver of sediment mercury (Hg) on different time scales and to gain a better understanding of the mechanisms of Hg accumulation in lake sediments. A 3000-year sediment record from Nylandssjön in northern Sweden was analysed for this purpose, as well as a 20-year sediment record from the seasonal sediment traps of this lake. READ MORE

3. 2. In situ electrokinetic remediation of soil co-contaminated with trace elements and polycyclic aromatic hydrocarbons

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

   Author : Emma Heidrich; [2023]
   Keywords : polycyclic aromatic hydrocarbons; trace elements; co-contaminated soil; electrokinetic remediation; iron electrodes;

   Abstract : Sites contaminated with polycyclic aromatic hydrocarbons can be simultaneously contaminated with trace elements. Co-contaminated soil is considered a complex problem since inorganic and organic contaminants behave differently and thereby often require different remediation strategies. READ MORE

4. 3. Long-Term Impact of Drought on AcidSulfate Soil Leaching, a Study of NineCatchment Areas in Sweden and Finland

   University essay from Uppsala universitet/Luft-, vatten- och landskapslära

   Author : Emilie Åström; [2022]
   Keywords : acid sulfate soil; hydrological drought; water chemistry; metal leaching; sulfate concentration; sur sulfatjord; hydrologisk torka; vattenkemi; metallurlakning; sulfatkoncentration;

   Abstract : Sediments rich in sulfide were deposited in the Littorina sea in an environment that was shallow, anoxic,and reductive. The sediments were brought above sea level by isostatic uplift and can now be foundalong the coast of the Baltic sea. READ MORE

5. 4. Livestock-MRSA in Danish Pig Farms

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Mona Tykesson Klubien; [2021]
   Keywords : GIS; epidemiology; MRSA; Denmark; pig production; logistic regression; Earth and Environmental Sciences;

   Abstract : This study looks at factors contributing to LA-MRSA prevalence in Danish pig farms. LA-MRSA is a pathogenic bacteria that are resistant to methicillin (penicillin) and tetracycline antibiotics found in livestock such as pigs, poultry and cattle. READ MORE

6. 5. Prussian White In Sodium- Ion Batteries : An evaluation of organic and inorganic coatings on active material particles

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Philip Jansson; [2021]
   Keywords : Sodium-ion batteries; Prussian White; Coating; Surface engineering; Zinc oxide; Polyaniline; Natriumjonbatterier; Berlinervitt; Beläggning; Ytmodifiering; Zinkoxid; Polyanilin;

   Abstract : Emerging markets in electrochemical energy storage, such as stationary grid storage, coupled with future concerns over the availability of lithium, places sodium-ion battery (SIB) technologies at a unique position to enter the market as a commercially viable alternative. Current shortcomings in the performance of cathode materials in SIBs would necessarily need to be addressed if this technology is to compete with existing commercial lithium-ion battery counterparts. READ MORE