Sanitation | Glossaire eau, milieu marin et biodiversité

Matière structurante liée au compostage des boues

Sens technique

Toute matière issue de matières végétales ajoutée au processus de compostage afin de laisser circuler l'air et de contribuer à la montée en température.

Source

d'après Legifrance

Leachate

Sens commun

Liquide chargé bactériologiquement et chimiquement par la dégradation des déchets lors de la circulation des eaux dans les déchets, contenu dans une décharge et ou extrait.

Source

d'après Ademe

Sens technique

Tout liquide filtrant par percolation des déchets mis en décharge et s'écoulant d'une décharge ou contenu dans celle-ci (d'après la législation européenne Directive 1999/31/CE du conseil Conseil du 26 avril 1999concernant la mise en décharge des déchets).

Cette fraction liquide résiduelle est engendrée par l'action conjuguée de l'eau de pluie et de la fermentation naturelle sur le stockage des déchets. Riche en matière organique et en éléments traces, le lixiviat ne peut être rejeté directement dans le milieu naturel et doit être soigneusement collecté et traité.

Source

d'après Veolia et OIEau

Wastewater heat recovery unit

Sens commun

Exchanger used to partially recover the thermal energy of wastewater.

Source

according to CELF

Vegetated discharge area

Sens technique

Space developed between the wastewater treatment plant and the receiving environment of treated wastewater discharges (it is not part of the wastewater treatment plant). The vegetated discharge areas (VDA) are characterised by the use of plants (mostly aquatic but possibly also terrestrial) and their planting close to the treatment plant, in the space remaining after the building of this plant. The VDA is not a wetland as there is no "long presence of natural water". It is also not a grass strip, specific to the mitigation of non-point source pollution (pesticides, fertilisers, sediments, etc.), especially in agriculture.

Source

according to OFB and IRSTEA

Circular economy

Sens commun

Organisation of economic and social activities using production, consumption and exchange methods based on eco-design, repair, re-use and recycling, with a view to reducing the volume of the resources used and the damage caused to the environment.

Source

according to the services of the Prime Minister

Sens technique

Economic concept that fits into the framework of sustainable development and whose objective is to produce goods and services while limiting the consumption and wastage of raw materials, water and energy sources. It means using a new economy, which is circular and no longer linear, based on the principle of "closing the life cycle" of products, services, waste, materials, water and energy.

Source

according to the Ministry of the Environment

Wastewater re-use

Sens commun

Use of wastewater, in agriculture for example, after passing through the treatment plant, instead of being discharged into watercourses, bodies of water or coastal waters. This re-use allows, on the one hand, mobilising an additional water resource and, on the other, protecting the water receiving the treated wastewater.

Source

according to the Ministry of the Environment

Discharge into a sewer

Sens commun

Action to dispose of, discharge or allow the flow of runoff water (mainly from rainfall) and wastewater (produced by human activities) into the sewers of a city.

Source

according to the Ministry of the Environment and City of Paris

Connection to a sewer

Sens commun

All the private pipes, buried or not, located outside the house, between the sanitary (bathroom, toilet) or household appliances (sink, laundry tray...) and the junction manhole.

Source

according to the Artois-Picardy Water Agency

Phyto-purification

Sens commun

Techniques using natural processes combining "plants, soil, microorganisms" in an artificially created ecosystem, especially for wastewater treatment.

Source

according to Runying Wang (ecologist)

Water odour

Sens commun

Odour that emerges from water, usually due to a multitude of different molecules, in very low concentrations, mixed with the air that is breathed. For example, open sewers, discharges from an organic chemical industry (pharmacies, insecticides), wastewater treatment, intensive livestock farming (pigs, cattle, poultry or other) or land application (slurries, sewage sludge) can be a source of olfactory nuisance.

Source

according to Wikipedia