Julie Jimenez

Julie Jimenez

AgreenSkills session, year: 2nd session, 2016

Receiving laboratory: Department of Agricultural Sciences (DipSA) – Alma Mater Studiorum University of Bologna, Bologna, Italy

Country of origin : France

E-Mail: julie.jimenez@inra.fr



Mobility project

Nutrients accessibility speciation of organic residues from wastes for both process treatment and plant nutrition: physic-chemical indicators definition

In a zero-waste framework organic wastes are considered a valuable resource. In such a system, the residues from biorefinery processes following organic waste exploitation have to be valorised as organic fertilizer within an eco-friendly approach. Up to now, the design and operation of processes are mainly focused on the first objective but a new perspective is rising: how to integrate and to adapt the organic residues treatment processes into a sustainable agro-system management. The core idea of the present proposal is to fit the best process conditions to maximize both targets. Indeed, Julie JIMENEZ’s research topic at INRA-LBE is focussed on the rationalization of the treatment plant configuration through reverse engineering in order to optimize the overall process design according the targeted services (eg. anaerobic digestion for energy production (biogas) together with organic fertilizer production (digestate)). In this light, the first step is the characterization of the organic fertilizers targeted according to both soil and crop demands in terms of organic matter and nutrients (eg. nitrogen and phosphorus). In this context, this project aims to apply practical physico-chemical indicators to describe available nutrients from organic residues for both waste treatment process modelling and plant nutrient uptake after land spreading. These indicators come from both laboratories (e.g. INRA-LBE and DipSA characterization strategy to describe nutrients plant availability). The application of both approaches, applied on different typology of digestates and investigating the relationships with biological indicators (from both biological process and plant pot trials), is the strategy proposed to solve this issue.

Biography & research interests

Julie Jimenez is a process engineer (2007) and worked in the water treatment research center of VEOLIA during 6 years. In parallel, she had her phD in 2012 on organic matter characterization for anaerobic digestion modelling. During her career, she got expertise in process engineering, process modelling and organic matter characterization in waste and wastewater treatment fields. Thanks to these skills, she was awarded in 2015 with a permanent position at INRA as researcher. She is in charge the following research topic “Integration and adaptation of organic residues treatment process for a sustainable agrosystems management”. This research topic is focussed on the rationalization of the waste treatment plant configuration through reverse engineering in order to optimize all the process design according to the targeted services (eg. energy production by anaerobic digestion and organic fertilizer production). Indeed, in a zero-waste framework, organic wastes are considered a valuable resource. In such a system, the residues from biorefinery process following organic waste exploitation have to be valorised as organic fertilizers within an eco-friendly approach.
Her research issues are the following: (i) to define quality and typology of organic fertilizers according both soils and plants demands, (ii) based on the typology defined, to study the process treatment impact on the organic fertilizer quality and to model the involved processes in order to optimize the whole treatment chain (iii) based on the two previous issues, to optimise and design the whole treatment chain by considering compromise between all the targeted services and the environmental constraints.

Selected publications

1. Maynaud G., Druilhe C., Daumoin, M., Jimenez J., Patureau, D., Torrijos M., Pourcher AM., Wery, N. (2017) Characterisation of the biodegradability of post-treated digestates via the chemical accessibility and complexity of organic matter. Bioresource and Technology 231, 65-74.
2. Charnier, C., Latrille, E., Jimenez, J., Lemoine, M., Boulet, J.-C., Miroux, J., Steyer, J.-P., 2017. Fast characterization of solid organic waste content with near infrared spectroscopy in anaerobic digestion. Waste Management 59, 140-148.
3. Aemig, Q., Cheron, C., Delgenès, N., Jimenez, J., Houot, S., Steyer, J.-P., Patureau, D. (2016). Distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in sludge organic matter pools as a driving force of their fate during anaerobic digestion. Waste Management, 48, 389-396.
4. Jimenez, J., Aemig, Q., Doussiet, N., Steyer, J.-P., Houot, S., Patureau, D. 2015. A new organic matter fractionation methodology for organic wastes: Bioaccessibility and complexity characterization for treatment optimization. Bioresource technology, (194) 344-353. *
5. Jimenez, J., Latrille, E., Harmand, J., Robles Martinez, A., Ferrer, J., Gaida, D., Wolf, C., Mairet, F., Bernard, O., Alcaraz-Gonzalez, V., Mendez-Acosta, H., Zitomer, D., Totzke, D., Spanjers, H., Jacobi, F., Guwy, A., Dinsdale, R., Premier, G., Mazhegrane, S., Ruiz-Filippi, G., Seco, A., Ribeiro, T., Pauss, A., Steyer, J.-P. 2015. Instrumentation and control of anaerobic digestion processes: a review and some research challenges. Reviews in Environmental Science and Bio-Technology, 14 (4), 615-648.*
6. Jimenez, J., Gonidec, E., Cacho Rivero, J. A., Latrille, E., Vedrenne, F., Steyer, J.-P. 2014. Prediction of anaerobic biodegradability and bioaccessibility of municipal sludge by coupling sequential extractions with fluorescence spectroscopy: towards ADM1 variables characterization. Water Research, 50, 359-372.*
7. Muller, M., Jimenez, J., Antonini, M., Dudal, Y., Latrille, E., Vedrenne, F., Steyer, J.-P., Patureau, D. 2014. Combining chemical sequential extractions with 3D fluorescence spectroscopy to characterize sludge organic matter. Waste Management, 34 (12), 2572-2580.
8. Jimenez, J., Vedrenne, F., Denis, C., Mottet, A., Deleris, S., Steyer, J.-P., Rivero, J.A.C. 2013. A statistical comparison of protein and carbohydrate characterisation methodology applied on sewage sludge samples. Water Research, 47 (5), 1751 – 1762.
9. Mottet, A., Ramirez Rivas, I., Carrère, H., Deleris, S., Vedrenne, F., Jimenez, J., Steyer, J.-P. (2013). New fractionation for a better bioaccessibility description of particulate organic matter in a modified ADM1 model. Chemical Engineering Journal, 228, 871 – 881.
10. Jimenez, J., Grelier, P., Meinhold, J., Tazi-Pain, A., 2010. Biological modeling of MBR and impact of primary sedimentation. Desalination, Volume 250, Issue 2, pp 562-567.Fenu, A., Guglielmi, G., Jimenez, J., Sperandio, M., Saroj, D., Lesjean, B., Brespol C., Thoeye, C. 2010. Activated sludge model (ASM) based modelling of membrane bioreactor (MBR) processes: A critical review with special regard to MBR specificities. Water Research, Volume 44, Issue 15, pp 4272-4294.


E-Mail: julie.jimenez@inra.fr

Website(s): http://www.scienzeagrarie.unibo.it/it/ricerca/ambiti-di-ricerca/chimica-agraria-e-pedologia | http://www6.montpellier.inra.fr/narbonne