Essays about: "Carbonate"

Showing result 16 - 20 of 170 essays containing the word Carbonate.

1. 16. Hydrogeological and economic analysis of a groundwater-based water supply system in rural Nepal

   University essay from Lunds universitet/Väg- och vattenbyggnad (CI); Lunds universitet/Teknisk geologi

   Author : Hamon Hedayatnasab; [2023]
   Keywords : Technology and Engineering;

   Abstract : Access to safe drinking water and sanitation is a given standard and considered as basic human rights in urban areas and industrialized countries. However, 40 % of the world's population living in rural areas in developing countries lack access to safe drinking water. READ MORE

3. 17. A new generation ofsmart food packaging : A combination of releasing anti-microbial and generation carbon dioxide inmeat packaging

   University essay from Karlstads universitet

   Author : samar salahieh; [2023]
   Keywords : adsorption isotherms; desorption kinetics; benzoic acid; thymol; modified calcium carbonate; silica gel; carbon dioxide; food pad.; adsorptionsisotermer; desorptionskinetiken; bensoesyra; tymol; modifierat kalciumkarbonat; kisel gel; koldioxid; food pad.;

   Abstract : Abstract Food sustainability depends significantly on packaging since it helps maintainfood safe and fresh throughout its shelf life, resulting in the least amount ofwaste and the least negative environmental impact. The main objective of thisstudy is to determine the adsorbed and released amount of antimicrobial agents(benzoic acid and thymol) on modified calcium carbonate (MCC) by investigating adsorption isotherm at 25°C and desorption kinetics at both 22°C and5°C of anti-microbial to identify potential solutions to enhance the long-termsustainability of fresh products such as meat. READ MORE

4. 18. Uptake and retainment of radionuclides in edible mushrooms – from fruiting to cooking

   University essay from

   Author : Delshad Mansour Ayoubi; [2022-12-06]
   Keywords : Medical physics; Activity concentration; Transfer coefficient; Dose;

   Abstract : Purpose: The purpose of this study was to study the uptake, distribution and transfer of Mn-54, Zn-65, U-238, U-235, U-234, and Po-210 in mushrooms and their respective caps and stalks, the effects of chelates and ligands, and the potential release of radionuclides during a cooking procedure. Introduction: Fungi are organisms that are composed of a fruiting body (mushroom) and tubular hyphae, that branches out into complex networks called mycelium. READ MORE

5. 19. A GREENER SOLUTION Investigating the potential use of Green Solvents to remove cellulose nitrate lacquer from silver objects

   University essay from Göteborgs universitet/Institutionen för kulturvård

   Author : Borén Evelina; [2022-07-05]
   Keywords : Sustainable Conservation; Green Solvents; Cellulose Nitrate; Lacquer; Coating; Silver;

   Abstract : This thesis investigates the performance of non-hazardous solvent substitutes, so called “Green Solvents", for the removal of aged and unaged cellulose nitrate lacquer from silver surfaces. Literature research and preliminary tests resulted in four solvents of interest: ethyl acetate, ethyl lactate, propylene carbonate and dimethyl carbonate. READ MORE

6. 20. The Influence of Pigment Additives on the Barrier Properties of Dispersion Coatings

   University essay from KTH/Fiber- och polymerteknologi

   Author : Malin Eriksson; [2022]
   Keywords : dispersion coating; paper products; pigment; sustainable development; circular economy; Dispersionsbarriär; pappersprodukter; pigment; hållbar utveckling; cirkulär ekonomi;

   Abstract : Att minska plastavfall och uppmuntra återvinning har fått hög prioritet i många affärsverksamheter och olika typer av regleringar implementeras för att minska den negativa påverkan av plastanvändningen. Papper och kartong består i huvudsak av cellulosa som har många egenskaper som är essentiella för en hållbar ekonomi (t.ex. READ MORE