Environment manager

The latest publications in this offer are:

• August 10, 2026

  G1452

  Economic aspects of sewage sludge management

  This article addresses the economic aspects of managing sludge from wastewater treatment. It analyses the various internal costs - investment, operation, finance and administration - and external costs - environmental and health -, as well as opportunity costs. It details the economic tools that can inform decision-making between different options, emphasises the importance of internalising externalities through taxes and standards, and considers the impact on water prices. It emphasises the need for a comprehensive approach that considers sustainability, public health protection, and social solidarity.

• August 10, 2026

  G1172

  Water treatment before use - Systems and applications

  This article aims to describe all the unit processes in water treatment systems. These treatments can range from simple roughing for wash water to advanced treatment for obtaining ultrapure water in the pharmaceutical industry, including clarification or refining treatments for drinking water. Applications in several industries, including paper mills, aerospace, food processing, and steelmaking, illustrate the diversity of these processes.

• June 10, 2026

  FIC1107

  ICPE: identifying internal and external players

  The parties that may be involved in the operation of a facility classified for environmental protection (ICPE) may be internal or external to your facility. The purpose of this fact sheet is to provide you with an overview of these stakeholders and their level of involvement.

• June 10, 2026

  FIC0511

  Understanding the links between monitoring commissions, SPPPIs and CODERSTs

  The public’s right to be informed and to participate in environmental decision-making is reflected, in the context of ICPEs, by the establishment of commissions and a secretariat, whose representatives may largely overlap (federal agencies, local governments, associations, etc.). While the work of the Departmental Councils for the Environment and Health and Technological Risks (CODERST) remains independent of that of the Site Monitoring Commissions (CSS) and the Commissions for the Prevention of Pollution and Industrial Risks (SPPPI or S3PI), the activities of the latter two may, on the contrary, be closely linked. It is important to: distinguish between them by identifying their missions and powers; understand the relationship between the CSS and the SPPPI or S3PI.

• June 10, 2026

  FIC0507

  CODERST: operation and role

  CODERST is a departmental administrative body whose mission is to assist the departmental prefect (the police prefect in Paris) on matters related to public policy in the areas of environmental protection, sustainable management of natural resources, and the prevention of health and technological risks. As such, it is responsible for issuing an opinion on draft prefectural decrees concerning ICPEs, for example during the procedure for opening classified facilities for environmental protection (ICPE) subject to registration (E), authorization (A), or authorization with conditions (AS). It is therefore important to understand how it operates and what its role is.

• June 10, 2026

  FIC0066

  Define key terms: ICPE and operator, activity and facility

  To understand the classification system for facilities, activities, structures, or projects subject to regulations governing classified facilities for environmental protection (ICPE), you need to be familiar with the underlying concepts. The purpose of this fact sheet is therefore to define the key terms related to this specific area of environmental law and, for each term, to provide examples that will help you better understand these concepts and place them within their regulatory context.

• May 21, 2026

  W6500 Reviewed

  Dynamic modeling of the biological processes for water treatment

  Biological processes with suspended biomass of the activated sludge type are used for the treatment of urban or industrial wastewaters. These processes are generally based upon equations of "matter" assessments constructed on the hypothesis of a permanent regime. However, these systems are the subject of constant disturbances: high variation in pollutant load, discontinuity of certain operations. The dynamic analysis of the biological processes for wastewater treatment is thus essential in order to understand the real operating of units and optimize the dimensioning parameters.

• March 10, 2026

  P3910

  Bio-based techniques for water analysis

  There is currently an increasing need for fast and cost-effective analytical methods suitable for water pollutants monitoring and toxicological impact assessment. In this context, some techniques based on the specific properties of whole cells, enzymes, antibodies, DNA, biopolymers or materials of natural origin, appear as excellent alternatives or complementary techniques to classical chemical methods. This article will be more particularly focused on biosensors and biosorbents (principles, advantages and limitations, application to water quality assessment, new trends).

• March 10, 2026

  G1451

  Final disposal of sewage sludge

  The management of sewage sludge from wastewater treatment poses major environmental and regulatory challenges. Various solutions exist: agricultural reuse, thermal treatment, landfill or industrial reuse, each with advantages and limitations depending on the composition of the sludge and the local context. Changing standards are driving a shift towards innovative and sustainable solutions that combine safety, performance and respect for the environment.

• February 10, 2026

  G1171

  Water treatment before use. Dissolved matter

  This article relates to the treatment operations for the elimination of dissolved substances present in natural fresh water used as raw material in industry and the production of drinking water. The main processes are described and grouped by major physicochemical reaction (gas-liquid exchange, oxidation, adsorption, ion exchange, equilibrium, membranes), the operations are explained as well as the expected performances and drawbacks. A final chapter is devoted to a synthesis by dissolved substance, the interest of which is to quickly identify the process(es) allowing its elimination or transformation.

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