The development of the Cyclann cluster's research is part of a sustainable development approach, with the framework of the Sustainable Development Objectives (SDO).

The scientific project

The Cyclann team is particularly interested in four topics:

  • engineering and environmental sciences
  • water and effluent quality   
  • effluent and waste treatment   
  • environmental assessment
logo Cyclann

The research areas are mainly in engineering and environmental sciences:

  • Water and effluent quality: characterization of organic matter (natural, anthropogenic, particulate pollution, colloidal), indicators, degradation factors...
  • Effluent and waste treatment: development and optimization of physico-chemical, electro-chemical and biological processes.   
  • Environmental assessments: development of environmental performance assessment methodologies.
  • Diagnosis and forecasting of building material flows and construction site waste; analysis of material flows and stocks (metabolism) for the implementation of circular economy policies or approaches.

The team is working on this theme in association with the LERES (EHESP). The aim is to study both water and effluent quality in order to understand phenomena such as changes in water quality in a context of climate change.

The objective is to develop, optimize and control treatment processes (organic matter/anthropic matter discrimination) by characterizing in particular the phenomena of pollution transfer between the different granulometric fractions. The team is therefore working to define indicators, degradation factors or contributes to the development of monitoring methods based on optical methods.

The team works particularly on :

  • treatment by bioaugmentation or biostimulation on industrial or synthetic effluents;
  • electrochemical treatment of effluents containing metals and nanoparticles;
  • the treatment of gaseous effluents by absorption.

Some work, in particular the treatment of gaseous effluents containing VOCs by absorption, is carried out in collaboration with the ENSCR research laboratory. In the field of biological treatments, the projects aim to develop and optimize treatment processes.

Projects in this area aim to implement environmental assessment methods such as life cycle assessment or to propose methodologies to evaluate, for example, the environmental impact of a new treatment process.

The Team

Hayet DJELAL: Associate professor at UniLaSalle - EME since 1992, Doctor of Chemistry from the University of Rennes 1, specialization in biotechnology and engineer from the Ecole Nationale Polytechnique d'Alger, option Sanitary Engineering.

Hayet Djelal was Research and Projects Coordinator from 2009 to 2011 and was in charge of the teaching of Engineering Works in the last year of the engineering cycle. Specialized in the field of water and waste recovery and biological treatment, she is a part-time research associate in the Chemistry and Process Engineering team of the Ecole Nationale Supérieure de Chimie de Rennes.

Research topics: Biological treatment of effluents, methanization, industrial effluents (leachates, effluents from food processing activities, organic waste, etc.), biomass recovery.

Hayet Djelal supported and validated his Habilitation to direct research on May 12, 2017. His work focused on "Intensification of effluent treatment processes by bio-augmentation or combined processes - biomass valorization. »

Email :
See Hayet Djelal's profile on ResearchGate

Applied Sustainable Development Objectives

Objectif développement Durable 6Objectif développement durable 9

  • Water treatment
  • Biotreatment, physico-chemical treatment
  • Advanced biological treatment processes
  • Biovalorisation (biomass)
  • Aerobic fermentation
  • Anaerobic digestion
  • Innovation and transfer

Karine DUFOSSE, Doctor in Environmental Sciences (INRA, UMR Ecosys), Karine Dufossé defended her PhD in 2013 on the environmental assessment of lignocellulosic crops for the production of 2nd generation bioethanol, based on the development of a mechanistic biophysical model, from plot to regional scale.

She then worked at AgroParisTech on the theme "Plant Ecophysiology" before carrying out a Post-Doc at INRA on the spatial development of a mechanistic model simulating NH3 emissions following nitrogen, mineral and organic fertilization according to local pedoclimatic conditions.

Research topics: life cycle analysis (LCA), modeling, Geographic Information System (GIS), database, agricultural resources and biomass, nitrogen fertilization.

See Karine Dufossé's profile on ResearchGate

Applied Sustainable Development Objectives

Objectif développement durable 7Objectif développement durable 12Objectif développement durable 13Objectif développement durable 15

  • Life Cycle Assessment (LCA)
  • Mathematical modeling and database
  • Geographic Information System (GIS)
  • Agricultural biomass resources
  • Nitrogen fertilization

Aude-Valérie JUNG : Doctor in geosciences from the Institut National Polytechnique de Lorraine (INPL), specializing in water chemistry, and engineer from the Ecole Nationale Supérieure de Chimie de Mulhouse, specializing in health, safety and the environment, she has been a associ at the EME since October 2007.

Aude-Valérie Jung is a part-time research associate at the Laboratory for Environmental and Health Studies and Research (LERES) at the Ecole des Hautes Etudes en Santé Publique de Rennes. She is also in charge of Engineering Projects for final year students at UniLaSalle - Rennes campus.

Research topics: Chemistry - environment-health, characterization of natural waters, organic matter, optical methods (turbidity, UV spectrophotometry, fluorometry).

Aude-Valérie Jung supported and validated her Habilitation to Direct Research on December 12, 2016. His work focused on "Characterization and degradation factors of water quality. Research into environmental and health risk indicators".

Email :
See Ms. Jung's profile on ResearchGate

Applied Sustainable Development Objectives

Objectif développement durable 3Objectif développement durable 6Objectif développement durable 9Objectif développement durable 13

  • Characterization of aquatic organic matter (academic skills)
  • Occupational health including chemical risk assessment (professional competence)

Abdoulaye KANE: Associate professor at UniLaSalle Rennes - EME since September 2012, he is a doctor in Process and Product Engineering from the Institut National Polytechnique de Lorraine (INPL).

Abdoulaye Kane was also a temporary higher education and research attaché at the INPL and the Ecole Nationale Supérieure de Chimie de Rennes. As a post-doctorate at ENSCR (from 2011 to 2012), he worked on the PAMPAC Program: VOC Adsorption Process Modulated by Heat Pump, funded by ADEME and ENSCR in partnership with CNAM-CIAT and the company Prosim.

Research topics: VOCs, adsorption, energy, process intensification, gas treatment...


Applied Sustainable Development Objectives

Objectif développement durable 7Objectif développement durable 13

  • Process intensification
  • Water and air treatment

Angélique MAHIEU: Associate professor at UniLaSalle since 2016, Engineer in fine chemistry from INSA and PhD in materials science from the University of Rouen.

Angélique Mahieu did her PhD on the implementation of biodegradable and active starch-based materials for food packaging, followed by several post-doctoral projects on the development of biosourced insulating materials based on agricultural co-products for the building industry.

Teaching: chemistry in all its forms, analytical sciences, material transformation processes.

Research topics: biosourced materials, materials for water treatment, valorization of natural resources.

Email :

Applied Sustainable Development Objectives

Objectif développement durable 4Objectif développement durable 12Objectif développement durable 13

Based on their expertise, the resource teachers work in support of student projects.

Thierry Henrion : His studies brought him to Rennes where he joined ENSAR (now Agrocampus Ouest), a training course supplemented by a year at INA-PG (AgroparisTech). His first job was spreading sludge from a wastewater treatment plant for a subsidiary of Suez. He followed the regulatory changes related to waste management and worked in composting, methanisation, landfill, sorting..., mainly in the East of France.

After a few years in operation, he joined a consultancy firm, Villers Services, with the mission of setting up sites classified for the protection of the environment (ICPE) related to waste treatment in Brittany and neighbouring regions. The chance encounters made him discover the LDC Algae project, a micro-algae farm project, very much focused on renewable energy and circular economy. He followed this project for a few years before applying to UniLaSalle Rennes - EME, with the strength of his field experience and wishing to pass on his knowledge and acquire new ones in a future-oriented, sustainable establishment....

He is a lecturer in waste management and ICPE for the engineering cycle, in particular in the Bachelor and MSc programs.

Email :

Wilfried Do Paco: teacher in Mathematics, Statistics and Applied Mathematics

Email :

Caroline Le Moulec : After several years in an international humanitarian NGO based in Paris and Brussels, Caroline Le Moulec joined the UniLaSalle team.

A graduate of Sciences Po Bordeaux with a specialization in international economics, she has worked as a mobilization manager for the public (youth, media, companies, institutions) on sustainable development and humanitarian issues. She has also had the opportunity to coordinate several projects on a European scale with multiple partners (NGOs, solidarity associations, local authorities, companies) around the Sustainable Development Objectives (SDOs) as well as during the COP21 in Paris. "Continuing to mobilize on these issues and to act within UniLaSalle and with students is once again an exciting challenge to be taken up!"

She is in charge of sustainable development and teaches on this theme.

Email :

Thibaud Niel : His studies brought him to Rennes where he joined the EME after two years of CPGE Maths SUP- Maths SPE in Saint Maur des fossés (94). He completed his training with a Master's degree in environmental research validated at the Mines de Saint-Etienne.

His first job was managing a new hydraulic works department in a subsidiary of VINCI Energie. As a project manager, he supervised field teams and organized with his teams the implementation of public drinking water supply equipment.

Following this experience in Orleans, the call of Brittany was stronger. He therefore joined a food-processing group COOPERL to work on the group's water management. He had a role of technical advice and coordination within the company to integrate water management in the industrial production policy. As water is a major element of the files of Classified Installation for the Protection of the Environment in Brittany, he had a role of formalization and communication with various public actors (ministries, prefecture services...).

The guiding thread of his student and professional career is water management, particularly recycling (REUSE).

He likes to remind people of the PARETO law: 20% of the causes cause 80% of the consequences. According to him, the work of the engineer/coordinator is above all a work of analysis and research of the causes to be solved by the simplest possible actions.

He is now a teacher in water management and accompanies students in their professional project within the school.

Email :

Margaux LHUISSIER (Scholarship CIFRE company CHIMIREC, Co-supervision : A. KANE, UniLaSalle Rennes - A. AMRANE Université Rennes1- J-L. AUDIC, Université Rennes1, PhD Director: A COUVERT, ENSCR) - ECOV project (2016-2019)

This project proposes the reuse of oils collected by a waste oil collection and recycling company. The objective is to capture the VOCs emitted on their site, while providing for their concomitant recovery.

The aim is to transform what was previously considered as waste into a resource that can be recovered on site and at a lower cost. The ECOV project is part of the fight against air pollution and in particular the limitation of VOC emissions and odorous molecules.

In addition to the environmental issues, the project presents economic stakes linked to a lower investment in the process and a reduction in operating costs thanks to a regeneration of the absorbent, thus meeting the major concerns of sustainable development.

Alaa SALMA (Direction H. Djelal, co-supervision A. Amrane UR1, Florence Fourcade UR1, in partnership with ENSCR) - bioproduction of platform molecules by fermentation and electrofermentation (2017-2020)

The valorization of secondary raw materials by fermentation is accompanied by numerous metabolites that can be valorized in energy (ethanol, H2, CH4) but also in matter (glycerol, succinic acid ...). The process of fermentation from biomass allows the production of organic compounds that will be involved in other industrial processes. These "platform" molecules are often bioactive molecules for therapeutic, cosmetic or food use.

It is within this framework that a associate professor (H. Djelal, 30%) is participating in the Call A Project: Incentive Action "Emerging Scientific Challenges 2018" on the "Production of bioethanol and platform molecules by fermentation-separation and recovery of the product of interest" (2018-2019). The project leader is UMR CNRS 6226 - ISCRennes. This project consists in recovering co-products of the food industry into ethanol and platform molecules by fermentation. In order to separate and recover the molecules of interest, a separation step is necessary. Different membrane separation processes are envisaged alone or in cascades such as microfiltration or membrane distillation.

Research Projects

Assessment of biological risks and optimization of indoor air treatment processes in air conditioning systems in the food industry.


To test/develop a process coupling photocatalysis/cold plasma for the treatment of indoor air pollution in the agro-food industry, to evaluate the health risks, and to acquire knowledge on degradation modes.


ISCR (CIP-ENSCR), IRSET (LERES), Crystal cluster

UniLaSalle contact:

Valorization of biomass boiler ashes for the elaboration of composite materials for civil engineering.


To promote the development of the circular economy in the building sector, through the implementation of a Workshop dedicated to the development of criteria and indicators to serve as scientific bases for its characterization. The research will focus more specifically on the integration in construction projects of materials or products from short supply chains or from a logic of lengthening the material cycle.


Project sponsor: LGCgE - IUT Béthune, Partner: UniLaSalle-EME, UMONS - Materials Sciences, Biallais Industries, Dalkia Nord Ouest - Bois Energie, CERIB, B2E, Cd2e.

UniLaSalle-EME: coordinator of a batch, Hayet Djelal (72%), Karine Dufossé (14%), Thierry Henrion (7%) Vincent Augiseau (7%)

UniLaSalle contact:

This project aims at the development and introduction of economically viable value chains based on the use of biochar from biomass waste in the regions of North-Western Europe.

Initiator: University of Kassel, Germany

Partners: Cyclann UniLaSalle: Abdoulaye KANE and AGHYLE UniLaSalle: David HOUBEN
15 other European partners from Germany, Belgium, the United Kingdom, the Netherlands, France and Ireland.
13 other partners from 5 European countries.

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Abdoulaye KANE
Associate professor in Process Engineering / Director of CYCLANN Research Unit