moteur de recherche

GIELNIK Anna

Doctorant

Présentation :

 

In 2012, I graduated from the University of Adam Mickiewicz in Poznań, Poland with a Bachelor degree in Biology. Following my first degree, I remained at the same university, where in July 2014 I received a Master Degree in Environmental Science. During preparation of my Master thesis, I spent two years gaining laboratory experience in the field Of biology, chemistry, bichemistry and ecotoxicology. For the purpose of my Master Thesis I have investigated the complex impact of new generation herbicidal ionic liquids on the environment. Tests included biodegradation analysis, ecotoxicological studies of physiological stress in plants, caused by soil contamination with ionic liquids and its impact on germination rate and pyisiological homeostasis in plants. Through my years of studying, I became strongly curious of contamination risks in the environment, caused by intensive anthropological activity and consequences of this contamination. My research interests are focused on the fate of contaminants, like petroleum hydrocarbons, pesticides and pharmaceuticals in the soil – their preservation in soil and possibilities of remediation by microbiological activity. I have also a strong interest in analytical chemistry – chromatography analysis and extraction of substances of interest from complex biological matrices.

The topic of my PhD thesis is “Digestate valorization for bioremediation of hydrocarbons contaminated soils”. The objective of the study is to develop practices for successful remediation process of hydrocarbons contaminated soils, utilizing digestate wastes, during landfarming process. The aim will be achieved by selecting the most effective techniques and the most optimal conditions for TPH degradation obtained during laboratory-scale experiment. Successful remediation is meant as elimination or reduction of toxic compounds to permissible concentration, providing a healthy and well-prospering soil.

The study includes analysis of digestates composition, performed with the use of of three dimensional excitation-emission spectrofluorophotometer as well as analysis of its biological stability manifested by DRI (Dynamic Respiration Index). Selection of optimal condition for bioremediation treatments will be made in laboratory scale microcosm experiment with monitoring of microbial activity as well as chemical and physical parameters. During microcosm experiment also microecology of soil biota will be analyzed. At the end of the experiment ecotoxicological assessment will be performed (Microtox analysis and germination tests on Lepidium sativum). Conditions selected during microcosm experiment will be applied in a greenhouse experiment which will investigate the impact of digestate application together with Ryegrass cultivation on bioavailability of TPH in soil.

 

CV détaillé

Publications (Moteur HAL)

Site web personnel :

 

Mots-clés :

 

Soil contamination – petroleum hydrocarbons – bioremediation – ecotoxicology – chromatography – microbiology – biochemistry

Localisation :

UPEM

Adresse physique: Bât. IFI, 2 allée du promontoire 93160 Noisy-le-Grand Bureau O20; Tél : 01 49 32 90 63
Adresse courrier: 5 Bd Descartes 77454 Marne-la-Vallée cedex 02

Contact :

anna.gielnik@u-pem.fr