Sökning: "Perchlorate"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet Perchlorate.

  1. 1. Gamma Radiation-Induced Synthesis of Cerium Oxide Mesocrystals

    Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Michel Goy; [2019]
    Nyckelord :;

    Sammanfattning : Nanoparticles of cerium dioxide was synthesized by gamma irradiation of aqueous solutions containing CeCl3 and CeBr3. ICP-OES was used to determine the precipitation yield. X-ray powder diffraction and transmission electron microscope were used to characterize the products. LÄS MER

  3. 2. Field-Site Prototype for HABIT (FSP-HABIT) : Characterizing Martian Salts Prior to the ExoMars 2020 Mission

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Johannes Güttler; [2016]
    Nyckelord :Mars; Brine; Perchlorate; Chloride; HABIT; ExoMars; ESA; IKI; Prototype; Conductivity; BOTTLE ENVPACK; Salt;

    Sammanfattning : One of the major remaining question about Mars is its habitability - if the requirements necessary to allow for life are presently fulfilled. One of the most relevant ingredients for life, as we know it, is water. Indirect evidence of transient liquid water on Mars has been retrieved from both rover [Martín-Torres et al. LÄS MER

  4. 3. An investigation for a method for measuring microbial degradation for oxochlorates in waste water sludge

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Hoger Najem; [2015]
    Nyckelord :sludge;

    Sammanfattning : The oxochlorates, such as ClO4-, ClO3- and ClO2- are toxic compounds and therefore they must be removed from effluents. In general they are synthetic compounds from industries and naturally also presents in Chilean caliche. LÄS MER

  5. 4. Ideonella dechloratans: Investigation of the chlorite dismutase promoter

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Thijs Goetelen; [2015]
    Nyckelord :Ideonella dechloratans; chlorite dismutase promoter; site-directed mutagenesis; FNR; ArcA;

    Sammanfattning : Chlorate and perchlorate pollutions have become a problem in the environment in the last decades. Studies have shown that some bacteria can degrade these substances into unharmful substances such as chloride and molecular oxygen. LÄS MER

  7. 5. Kloning av möjlig promotorsekvens uppströms kloritdismutas i Ideonella dechloratans.

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Lisa Ljungberg; [2014]
    Nyckelord :Biokemi; kemi;

    Sammanfattning : Perchlorate and chlorate are naturally occurring in the atmosphere, from here it sediments into groundwater and soil. The pollution is increased by discharges of perchlorate and chlorate from agriculture and paper mills. Bacteria capable of reducing perchlorate and chlorate to chloride and oxygen can be used to get rid of these contaminants. LÄS MER