Geri Dön

Biogeochemical processes in relation to the emerging persistentcompound of gadolinium in groundwater

Başlık çevirisi mevcut değil.

  1. Tez No: 913894
  2. Yazar: MERT ÇETİN EKİZ
  3. Danışmanlar: DR. JAN WİLLEM FOPPEN
  4. Tez Türü: Yüksek Lisans
  5. Konular: Belirtilmemiş.
  6. Anahtar Kelimeler: Belirtilmemiş.
  7. Yıl: 2023
  8. Dil: İngilizce
  9. Üniversite: IHE Delft Institute for Water Education
  10. Enstitü: Yurtdışı Enstitü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 94

Özet

Gadolinium Based Contrast Agents (GBCAs) are one of the most important contrast agents used in MRI scans. Due to their highly stable structure, pollution in the environment, especially the aquatic environment increases over time. Compared with surface water, lower pollution in groundwater was observed in the pilot site in Barcelona. The adsorption capacity of soil and the soil biome can effectively attenuate that. The pilot site soil biome consists of lactate-utilizing, denitrifying ironoxidizing, and iron-reducing bacteria. Therefore, this research aimed to investigate their effect on GBCAs' behaviors in groundwater. In terms of biogeochemical conditions, a good fit between current pilot site geochemistry and literature was found. On the other hand, soil biome respiration speed was found faster than in previous research. Moreover, instead of time-dependent decay, the growth of bacteria was found. Better conditions in the reactor might have led to such a situation. In terms of Gadolinium-Based Contrast Agent behavior, a high transmetallation rate was found and that rate aligns with previous research done on Gd-DTPA-BMA transmetallation. A high kinetic sorption rate to the soil surface has been found. Soil adsorption capacity in the pilot site was found in the range of literature, and significant Gd uptake by soil biome was not found. Differences in transmetallation rate and adsorption can occur due to physicochemical differences in GBCAs, and they can cause different pollution amounts. To properly assess GBCAs pollution on the environment, extensive transmetallation and adsorption tests should be done on different types of GBCA.

Özet (Çeviri)

Özet çevirisi mevcut değil.

Benzer Tezler

  1. Determination of archeal populations in anaerobic reactors using molecular techniques

    Anaerobik reaktörlerde arkeal toplulukların moleküler teknikler kullanılarak belirlenmesi

    ALPER TUNGA AKARSUBAŞI

    Doktora

    İngilizce

    İngilizce

    2003

    BiyolojiBoğaziçi Üniversitesi

    Çevre Mühendisliği Ana Bilim Dalı

    PROF. DR. BAHAR KASAPGİL İNCE

    PROF. DR. BETÜL KIRDAR

  2. Intial assessment of Atriplex species for establishment and growth in Niğde soil and environment

    Niğde toprak ve çevresinde Atripleks türlerinin kuruluş ve büyümesi için başlangıç değerlendirmesi

    KADDIJATOU JAWNEH

    Yüksek Lisans

    İngilizce

    İngilizce

    2021

    ZiraatNiğde Ömer Halisdemir Üniversitesi

    Bitkisel Üretim ve Teknolojileri Ana Bilim Dalı

    PROF. İAN TİMOTHY RİLEY

  3. Trace metal composition of particulate metter in the water column and sediments of the Black Sea and regional rivers

    Karadeniz sedimanında, su kolonunda ve bölge nehirlerindeki parçacık madde eser element kompozisyonu

    OĞUZ YİĞİTERHAN

    Doktora

    İngilizce

    İngilizce

    2005

    KimyaOrta Doğu Teknik Üniversitesi

    Kimyasal Oşinografi Ana Bilim Dalı

    DOÇ.DR. SEMAL YEMENİCİOĞLU

  4. Identification of Antarctic freshwater diatom species using microscopic and molecular techniques

    Antarktika tatlı su diyatom türlerinin mikroskopik ve moleküler teknikler kullanarak tanımlanması

    HİLAL CURA

    Yüksek Lisans

    İngilizce

    İngilizce

    2020

    Biyolojiİstanbul Teknik Üniversitesi

    İklim ve Deniz Bilimleri Ana Bilim Dalı

    DR. ÖĞR. ÜYESİ NAZLI OLĞUN KIYAK

    DR. ÖĞR. ÜYESİ MEHMET BAKİ YOKEŞ