Valérie Laforest

Mines Saint-Etienne | ENSM-SE · Département GEO : Génie de l'Environnement et des Organisations

Low-tech approaches have come to the fore in the last few years, mainly in opposition to the techno-optimistic model proposed to solve current and future environmental crises. However, low-tech thinking is multifaceted, making the concept potentially rich but also vague. This article develops a seven-principle framework to categorize low-tech conce...

This paper reports on a research work conducted within the framework of the SUSTAIN project aiming to unleash and operationalize the potential of customer centricity and sustainability requirements. More specifically, the paper presents a Decision Support System (DSS) intended to support the alignment of aggregate production planning with customer...

The Absolute Environmental Sustainability Assessment (AESA) framework is an emerging field in environmental research that aims at comparing the estimated environmental burden generated by a system on its life cycle to the carrying capacity that can be assigned to this system, i.e. the amount of impacts that it can cause without causing unacceptable...

The circular economy is entirely in line with the European Commission’s long-term strategy aimed at moving toward an economy without any climate impact by 2050 (European Commission, 2018). Yet, to our knowledge, there is little work that analyzes the impact of the circular economy on CO2 emissions in Europe. The objective of this study is to analyz...

Customers today desire more individualized products and services. As a consequence, the market must deal with a significant increase in a variety of offerings to satisfy this changing customer demands. This rapidly increasing variety affects operations complexity of manufacturers and subsequently costs and environmental impact. Consequently, compan...

The Industrial Emissions Directive (IED) aims to achieve a high level of protection of the environment as a whole and of human health. In this purpose, the IED requires the implementation of techniques with performance equivalent to the Best Available Techniques (BATs) described in the reference documents (BREFs). However, when drawing up or revisi...

Premier rapport intermédiaire du projet de recherche SIMODEM du LabEx IMU Plus d'infos : https://imu.universite-lyon.fr/projet/simodem-simuler-la-mobilite-des-dechets-menagers-2018/ Les résultats publiés dans ce rapport sont des résultats intermédiaires, susceptibles d'être modifiés au cours du projet

assistant professor position at Mines Saint-Etienne

This study is focused on the development of environmentally friendly recycling method for selective recovery in a closed loop manner of Co and Pt from Pt3Co/C catalyst used as the PEMFC cathode. Pt and Co selective separation was carried out using two different hydrometallurgical alternatives based either on ion exchange resin or solvent extraction...

Customers today desire more individualized products and services. As a consequence, the market must deal with a significant increase in a variety of offerings to satisfy this changing customer demands. This rapidly increasing variety affects operations complexity of manufacturers and subsequently costs and environmental impact. Consequently, compan...

This study addresses a scheduling problem involving a single-machine with coupled-tasks and bi-objective optimisation considering simultaneously inventory and environmental waste. A Mixed Integer Linear Program representing the problem is first developed. Subsequently, a Genetic Algorithm (GA) is presented, followed by numerical experiments on mult...

Sustainability in manufacturing operations has become the subject of increasing attention in the recent years. At the operational level, knowledge about material and energy flows circulating in the production system provides information regarding costs, efficiency and environmental impact, as well as opportunities for improvements. Several methods...

During the early design stages of product-service systems (PSS), particular attention must be given to sustainability considerations to ensure the achievement of a sustainable PSS. However, there is a lack of decision-making support within existing design methods to help designers generating PSS solutions with reduced sustainability impact from the...

The shift from linear to circular patterns is on the way and rise many questions. In the last ten years, reuse and upcycling are gaining more attention. Since reduce and reuse were describe as a priority by the European Union, some leading projects are unveiled in different countries. Scale and quality of those projects push the reuse issue out of...

This article proposes a review on waste minimization at the operational level of production planning. After defining the research scope and the concept of waste minimization through scheduling, the state-of-the-art is presented. A classification based on environmental and scheduling criteria is proposed, which details the various types of schedulin...

The aim of this paper is to establish the environmental criteria that allow a product to be qualified as a product with environmental quality. The methodological approach includes a rigorous and reproducible systematic literature review. It is performed following three research questions to define the main concepts related to a product's environmen...

This study addresses a scheduling problem involving a single-machine with coupled-tasks and bi-objective optimization considering simultaneously inventory and environmental waste-related costs. A mixed integer linear program representing the problem is developed and experimented on with multiple instances. The Pareto front is determined using the ε...

The Industrial Emission Directive (IED) has strengthened the requirement to apply Best Available Techniques (BATs) first introduced by the IPPC Directive. The so-called "Sevilla Process", which is the formal European process to define and revise BATs, is based upon an exchange of information among different stakeholders and relies on data analysis...

In an urban context, waste is a resource subject to a great spatial variability. This heterogeneity affects the planning of waste management activities because it alters their performance from one municipality/neighborhood/district to another. If not well apprehended at multiple scales, this variability can threaten the overall economic and environ...

Sludge is slowly moving away from providing basic by-products and towards providing value-added products (e.g. fertilisers); therefore, it is no longer perceived as waste but as a product. Consequently, wastewater treatment plants become multifunctional systems that produce two coproducts that are given a second life: sludge and “clean” water. An a...

The dredging of the French harbors generates every year between 25 and 40 million tons of sediments, however few adapted treatment and valorization systems exist. Consequently, numerous research programs emerged such as SEDiGEST, which envisaged a scenario of backfill of the careers by treated marine sediments.The objective of this article is to as...

Waste recovery is an integrated part of municipal solid waste management systems but its strategic planning is still challenging. In particular, the service area size of facilities is a sensitive issue since its calculation depends on various factors related to treatment technologies (output products) and territorial features (sources waste product...

Best Available Techniques encompass preventive and end-of-pipe solutions aimed to contribute to the sustainability of the European industry. They are determined by the official Sevilla Process based on extensive data collection and analysis, supporting formal negotiation steps. This article presents a statistical multicriteria method applied to the...

A proton exchange membrane (PEM) fuel cell, an alternative to combustion processes that consume fossil resources, is used to convert energy stored in the form of hydrogen into electricity. The membrane-electrode assembly (MEA), the core of this system, contains platinum, a noble metal, which is a limited resource. This paper presents an environment...

The design of waste management systems rarely accounts for the spatio-temporal evolution of the demand. However, recent studies suggest that this evolution affects the planning of waste management activities like the choice and location of treatment facilities. As a result, the transport structure could also be affected by these changes. The object...

Montreal has planned the installation of new anaerobic digestion plants by 2019, which will produce energy from waste that could contribute to reduce the city’s dependency on fossil fuels. However, the selective collection of small waste quantities to supply the plants increases the share of transport in the global costs, which threatens the effici...

Companies are increasingly selling functionalities of integrated solutions of products and services instead of selling mere products. This integration of products and service solutions is known as Product Service Systems (PSS), which allows to maximize customer value and overcome increasing competition in the manufacturing sector. In this sense, PS...

Companies are increasingly selling functionalities of integrated solutions of products and services instead of selling mere products. This integration of products and service solutions is known as Product Service Systems (PSS), which allows to maximize customer value and overcome increasing competition in the manufacturing sector. In this sense, PS...

Abstract This paper aims at highlighting considerations on the sludge status and subsequent Life Cycle Assessment modelling if a paradigm shift arose by moving from “waste” sludge to “product” sludge. Forty-four peer-reviewed papers of Life Cycle Assessment in the field of wastewater treatment have been critically reviewed to highlight the conseque...

The Industrial Emission Directive (IED) has strengthened the requirement to apply Best Available Techniques (BATs) previously introduced by the IPPC (Integrated Pollution Protection and Control) Directive. BATs in the European Union are defined and revised through an official framework: the Sevilla Process. It describes a step-by-step procedure of...

This paper deals with the dynamic of French building’s actors facing to energy and environmental issues. Based on a research on a specific target area (Loire department), the study aims to assess the state of the system and the limitations or barriers encountered by human and technical actors. Using the analysis of qualitative and quantitative resu...

This paper presents the development of an efficient hydrometallurgical recovery process of platinum from Pt catalyst of PEMFC electrodes at laboratory scale, whereby leaching, Pt separation, precipitation and filtration steps were combined in order to optimize the recovery process. The efficiencies of two different leaching agents (H2O2/HCl and HNO...

Best Available Techniques (BATs) in Europe have become crucial for the industrial sectors concerned with the Industrial Emission Directive (IED) and for other sectors like the nuclear industry. In the IED, the creation and revision process to define a list of BATs which will be used as a reference by operators and environmental authorities is known...

Product services systems (PSS) provide a promising opportunity for industries to propose both prosper and eco-friendly solutions to fulfill consumer needs. By shifting from traditional offer, comprised of physical products, to an integrated solution of product and services, it is assumed that PSS may reduce the environmental impact and provide bene...

Interactions between natural events and industrial installations may lead to dangerous phenomena. According to bibliographical research, the industrial sector is often unprepared for these joint natural and technological or Natech events mainly because of the lack of guidelines on how to apply Natech regulations and the lack of information on the d...

Since the last 20 years, wastewater treatment plants are become more effective in releasing a good quality water in the ecosystem due to stringent European directives aiming at maintaining and improving the aquatic environment (Directive 91/271/EEC, Directive 2000/60/EC). As a consequence, huge amount of wastewater sewage sludge are produced each y...

Wastepaper recycling allows important material and energy savings. However, recycling still has an environmental impact. Indeed, for the air flotation deinking process, waste represent 20 to 30% of the inlet weight. To enhance the performance of the deinking process, an alternative flotation technique has been implemented, using ozone as a reactive...

Financial viability of waste management systems depends heavily on the cost of transport. Operational models are well known tools to optimize transport costs by minimizing distances (or time). Another approach is to optimize the transport network geometry. In this study, a waste collection model is developed based on the hierarchical formation of n...

Currently, clean technologies are essential for the depuration or the valorisation of industrial effluents. The accessibility to the information by the industrialists for the choice of the best suitable technologies is the biggest gap to fill. As part of the European project for inter-regional transfer of recycling techniques and clean technologies...

http://www.pro-environnement.com/fr/pages/sommaire.aspx?tp=3 Les textes réglementaires incitant à tenir compte de la sensibilité du milieu local foisonnent au niveau français et européen. Cependant, ces textes ne proposent pas de cadre méthodologique pour l'évaluation de la sensibilité du milieu. Parallèlement à cela, les outils d'évaluation des im...

The application of the clean technologies to the metal finishing workshops can be obtain by three ways: the optimization, the substitution and the modification of the production process by, for example, the introduction of valorization processes. We have developed a method which allows industrialists to choose the best valorization techniques of th...

Afin d’améliorer la synergie entre les communautéstechniques et scientifiques axant leurs recherches sur la réduction des impacts environnementaux des 5 continents, les organisateurs de REWAS ont décidé de focaliser l’édition 99 sur le recyclage, le traitement des déchets et les technologies propres.

This study contributed to the automatic choice of industrial wastewater treatment lines after obtaining UV spectra. Treatment lines taken into account are: advanced oxidation processes (H2O2/UV), biological treatment, coagulation/flocculation/precipitation, activated carbon adsorption or destruction methods like incineration. For the choice of trea...

Le facteur 4, souvent évoqué comme objectif à atteindre face aux enjeux énergétiques et au changement climatique, est caractérisé par une double identité. Faisant à la fois référence à une augmentation de la productivité des ressources (facteur 4 " énergétique ") et à l'atténuation des émissions de gaz à effet de serre (facteur 4 " climatique "), i...

For the past 20 years, the European context has been policy-driven by several directives to reduce pollution, one of the most important for industries being the industrial emissions directive (IED). The IED's objective is to minimise pollution from various industrial sources throughout the European Union. One means of attaining the objective is to...

L’Europe évolue vers une société du recyclage. Parmi les matériaux les plus recyclés, le papier occupe une place majeure. Présentant en 2008, un taux de recyclage d'environ 65%, l’Industrie des Papiers et Cartons participe activement au recyclage. Si des progrès remarquables sont à noter, le recyclage du papier connait encore quelques limitations,...

The aim of Industrial ecology (IE) is to optimize resource management by densifying interactions between stakeholders occupying a common geographic area. This article considers ports, understood as platforms of circulation and transformation of material and energy flows. It addresses the role and capacity of ports to foster the implementation of IE...

Industrial ecology can have different definitions and applications whether it is considered in its technical or human approaches. Among this diversity of approaches, a new research field enlightened the relationship between industrial ecology and its territorial dimension. This article paves the way toward further discussions on the consequences, f...

To guarantee sustainable and dynamic waste management, the dynamic waste management approach (DWM) suggests an evolutionary new approach that maintains a constant flow towards the most favourable waste treatment processes (facilities) within a system. To that end, DWM is based on the law of conservation of energy, which allows the balancing of a ne...

Historically, wastewaters are mostly discharged in rivers and more recently in wastewater treatment plants. These last few years the paradigm shift toward industrial ecology brought up the necessity of matching natural and anthropogenic cycles and so raised the interest for reuse of wastewater as raw material. Thereby, wastewater, depending on its...

http://fayol.mines-stetienne.fr/sites/default/files/contribution/12.%20FAYOL/Departements/PIESO/IMT_Poster_ValentineMoreau_v2.pdf

Through the international (Convention) and European (Industrial Emissions Directive) legislations, industries have to apply preventive measures according to the Best Available Technique (BAT) concept or cleaner production (CP) strategies. Many technical solutions exist to conform, but the major stake is to assess the overall effect or impact of the...

Doubling Wealth - Halving Resource Use: from the original goals of efficiency production methods, the concept of "factor 4" has gradually changed in the early twenty-first century to focus on the division by 4 of greenhouse gas emissions. Today, Factor 4 depending on the scale refers to two different but interrelated concepts: climate factor 4 (nat...

Rapport d'expertise, Statut : Confidentiel, 11 p.

The European Integrated Pollution Prevention and Control (IPPC) directive compels the more polluting industries to apply Best Available Techniques (BAT) in order to reach an adequate level of environmental protection. In Europe, despite the difficulty of implementing the IPPC directive, there is nowadays an increasing endeavour to develop methodolo...

The European Integrated Pollution Prevention and Control (IPPC) directive compels the more polluting industries to apply Best Available Techniques (BAT) in order to reach an adequate level of environmental protection. In Europe, despite the difficulty of implementing the IPPC directive, there is nowadays an increasing endeavour to develop methodolo...

Rapport d'expertise Armines/Ecole des Mines de Saint-Etienne, 45p, Statut : Confidentiel.

The anthropogenic origin of environmental impacts has become an increasing subject of interest during the last decades. Especially, the impacts of the transportation sector on Climate Change has been widely demonstrated and studied. Numerous methodologies have been proposed to calculate Greenhouse Gas emissions due to good and passenger trips. This...

http://tapconference.org/

SP3 - Action 14 : PlatPil Livrable 14.7-2 Responsable de l'action, Jacques Méhu INSA de Lyon

Interactions between natural events and industrial installations may lead to dangerous phenomena such as: fires, explosions, or toxic dispersions. The industrial sector is often unprepared for these Natech events, increasing its vulnerability. The final purpose of this study is to help industrial facilities to decrease their vulnerability to accide...

http://berlin.setac.eu/embed/Berlin/Abstractbook1_Part2.pdf

Metal finishing industries produce an important tonnage of metal hydroxide sludge (MHS) during the treatment of their liquid effluents charged with heavy metals. Generally, a small part of these sludge is valorized because of their important metal fickleness. Consequently, the majority of these metal hydroxide sludge is sent to landfill centers. We...

http://seesib.univ-bpclermont.fr/emec12/pages/fascicule.pdf

Climate change and oil depletion appear to be among the most important challenges for today and future societies. In order to mitigate possible harmful effects, a radical reduction of energy consumption and greenhouse gas emission is necessary in the so-called developed countries. To achieve a low carbon society, the energy system must be reconside...