Search

Your search keyword '"Alicja Sobantka"' showing total 2 results
Start Over Author "Alicja Sobantka"
2 results on '"Alicja Sobantka"'

1. Life Cycle Assessment of a milk protein fractionation process: Contribution of the production and the cleaning stages at unit process level

Author

Geneviève Gésan-Guiziou, L. Tregret, Christian Buson, D. Beudon, D. Froelich, F. Thueux, Murielle Rabiller-Baudry, D. Auffret, Alicja Sobantka, S. Omont, Science et Technologie du Lait et de l'Oeuf (STLO), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut de Chambéry, Arts et Métiers ParisTech, Institut des Sciences Chimiques de Rennes (ISCR), Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Rennes-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES), ECOBILAN SA, SOREDAB SA, SOREDAB SA Boissière, Novasep Process, GES, ANR-06-PNRA-015, Agence Nationale de la Recherche, ANR-06-PNRA-0015,ECOPROM,ECOPROM : Eco-conception de procédés à membranes visant l'obtention de protéines à fonction(s) cible(s)(2006), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)

Subjects
Process (engineering), Microfiltration, Filtration and Separation, 02 engineering and technology, Fractionation, fractionnement, nettoyage de surface, environmental impact, Analytical Chemistry, protéine de lait, 020401 chemical engineering, [SDV.IDA]Life Sciences [q-bio]/Food engineering, Production (economics), Environmental impact assessment, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, fractionation, 0204 chemical engineering, industrie laitière, Process engineering, Life-cycle assessment, Unit process, analyse du cycle de vie, filtration, seepage, Milk protein, business.industry, analyse de cycle de vie, 021001 nanoscience & nanotechnology, milk industry, Environmental science, impact environnemental, 0210 nano-technology, business, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract

International audience; This paper aims at presenting a consistent Life Cycle assessment of the environmental impact of an industrialmilk protein fractionation process at the level of unit processes (gate to gate approach), focusing on the effectivecontribution of both the production and the cleaning steps. The precise assessment of the impact of cleaningstages could indeed constitute key issues for the optimisation and management of food plants. The results showthat the production phase accounts for approximately two-thirds of the environmental impact of the entire foodmanufacturing process, and the cleaning phase for more than 30% of the total impact. The latter is, however,underestimated due to methodological drawbacks and partly unavailable data. Among both the production andthe cleaning stages the most impacting unit processes are the membrane and the thermal operations mainly dueto the single-use of cleaning solutions and several temperature changes. Hence, for reduction of the overallenvironmental impact of the milk protein fractionation process it is advisable to primarily focus on improvementand optimisation of the microfiltration operation and secondly, on the thermal units.

Published
2019

2. Extended statistical entropy analysis (eSEA) for improving the evaluation of Austrian wastewater treatment plants

Author

Alicja Sobantka and Helmut Rechberger

Subjects
Engineering, education.field_of_study, Environmental Engineering, Waste management, business.industry, Entropy, Treatment process, Population, Environmental engineering, Energy consumption, Wastewater, Water Purification, Austria, Sewage treatment, business, education, Water Science and Technology
Abstract

Extended statistical entropy analysis (eSEA) is used to evaluate the nitrogen (N) budgets of 13 Austrian wastewater treatment plants (WWTPs). The eSEA results are then compared to the WWTPs specific N-removal rates. Among the five WWTPs that achieve a removal rate of 75% the eSEA detects significant differences in the N-performance. The main reason for this is that eSEA considers all N-species and seems to be more discriminating than the N-removal rate. Additionally, the energy consumption and the costs of the mechanical–biological treatment process are related to the N-performance according to the eSEA. The influence of the WWTP size on the energy- and cost-efficiency of the N-treatment is investigated. Results indicate that energy-efficiency does not necessarily coincide with cost-efficiency. It is shown that smaller WWTPs between 22,000 PE (population equivalents) and 50,000 PE can be operated as energy-efficiently as larger WWTPs between 100,000 and 1,000,000 PE. On average, the smaller plants operate less cost-efficiently than the large ones. This research offers a new method for the assessment of the N-performance of WWTPs, and suggests that small WWTPs are not necessarily less energy- and cost-efficient than large ones.

Published
2013

Catalog

Books, media, physical & digital resources
See catalog results