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Public water supply and sanitation services

Updated on 25/02/2019
Définition
Sens technique

Municipal public utility in charge of conveying drinking water to the consumer's tap and collecting and treating wastewater and stormwater before returning them to the natural environment. The 30,000 French public water supply and sanitation services are also in charge of the relations with the consumer: information, demand management, billing, etc. The "drinking water supply" service includes the abstraction of water from the natural environment, its potabilization and supply. The "sanitation" service includes the collection, conveyance and treatment of wastewater and the disposal or reuse of sludge…

Source
According to the Ministries of the Environment and Health and AFB

Drinking water supply system

Updated on 25/02/2019
Définition
Sens commun
Part of the overall water supply system including pipes, tanks, pumping stations and other equipment through which water is supplied to users. This part begins at the exit of drinking water production plants and ends at the point of water delivery to the user. It does not include private pipes and accessories of buildings that bring water to the consumption points.
Source
According to the Ministries of the Environment and Health and AFB

Water conveyance system

Updated on 06/09/2018
Définition
Sens commun
Set of techniques to bring water from its spring to consumption sites.
Source
according to Wikipedia

Water softening

Updated on 04/12/2018
Définition
Sens commun
It is a technique to remove minerals that cause water hardness, especially calcium and magnesium.
Source
according to IOWater
Sens technique
A technique consisting in exchanging the calcium and magnesium ions, which are not very soluble and which react with the carbonates of water to form limestone, with the sodium ions which are perfectly soluble in water. This operation is named "ion exchange".
Source
According to UAE

Water aeration

Updated on 06/09/2018
Définition
Sens commun
Bringing water and air in close contact to remove all dissolved gases (especially those responsible for bad odours) from water and introducing oxygen to oxidise certain compounds such as iron and manganese to prevent corrosion).
Source
according to WHO

Water corrosivity

Updated on 06/09/2018
Définition
Sens commun
Qualifies water which can dissolve scale and limestone. Corrosive water contributes to the corrosion of metallic pipes and equipment. It can cause the dissolution of metals (nickel, iron, copper, lead, cadmium...) and in this case induce health risks.
Source
according to the Alsace Regional Health Agency (ARS)

Biological sludge

Updated on 06/09/2018
Définition
Sens commun
Residual solids produced by biological wastewater treatment. Biological sludge is mainly composed of bacterial bodies and secretions.
Source
according to Wikipedia

Water treatment sludge

Updated on 06/09/2018
Définition
Sens commun
Sludge resulting from the treatment of water.
Source
according to the Seine-Normandy Water Agency

Water tower

Updated on 04/12/2018
Définition
Sens commun
A tower with an elevated high-capacity tank used to store drinking water and then convey it by gravity pipes.
Source
according to AFB

Decarbonatation

Updated on 06/09/2018
Définition
Sens technique
Removal of some calcium and magnesium from water to achieve a compromise between the proper mineral balance of water and the optimum level of hardness.
Source
according to IFREMER and the General Council of Seine-et-Marn

Iron removal

Updated on 06/09/2018
Définition
Sens technique
Action to remove iron or its derivatives from a liquid.
Source
according to Wikipedia

Defluorination

Updated on 06/09/2018
Définition
Sens commun
Removal of the surplus of fluorine from water, to reach a concentration that does not expose anyone to dental or bone health risks.
Source
according to the Belgian Development Agency

Demineralisation

Updated on 06/09/2018
Définition
Sens commun
Action to remove minerals and salts from water to produce demineralised water.
Source
according to Lenntech

Nitrate removal

Updated on 06/09/2018
Définition
Sens technique
Action to remove nitrates by filtration through an ion exchange resin.
Source
according to the General Council of Seine-et-Marne

Bottled water

Updated on 06/09/2018
Définition
Sens commun
Kind of water including spring waters and mineral waters, having specific regulatory requirements defined by the Public Health Code.
Source
according to the Brittany Regional Health Agency (ARS)

Water economy

Updated on 06/09/2018
Définition
Sens technique
A branch of the economy that theoretically deals with the relations between human societies and water, especially in economic policies relating to water, its consumption, use and pricing.
Source
according to the Ministry of Ecology

Hydraulic equipment

Updated on 06/09/2018
Définition
Sens commun
Equipment or infrastructure used for the abstraction, storage, treatment, conveying or transfer of water.
Source
according to the Corsican Hydraulic Equipment Office

Treatment line

Updated on 04/12/2018
Définition
Sens commun
Organised series of processes for the treatment of water intended for human consumption.
Source
according to AFB

Water filtration

Updated on 04/12/2018
Définition
Sens commun
A method used for passing water through a bed of filter material to improve its quality.
Source
according to AFB
Sens technique
Removal of suspended solids from a fluid (according to their particle size). Gravity or pressure filtration can be carried out through a porous wall (screen, membrane) or through a granular material (sand, anthracite, gravel and other materials used in biofiltration). One distinguishes screening (0.15-2.5 mm), micro-screening (25-150 μm), microfiltration (1-100 μm), ultrafiltration (1 - 0.1 μm) or nanofiltration (10 - 100 nm) depending on the size of the retained particles or the pores of the device.
Source
according to SIAAP and IOWater

Water leak

Updated on 04/12/2018
Définition
Sens commun
Unplanned water flow from a pipe, through a narrow or hidden slot.
Source
according to IOwater and AFB

Water taste

Updated on 06/09/2018
Définition
Sens commun
Water Characteristic (such as smell or appearance) dependent on the chemical substances it contains.
Source
according to the Journal of Water Sciences

Pump

Updated on 06/09/2018
Définition
Sens commun
Device for rising up, back flowing or compressing fluids.
Source
according to the Larousse dictionary

Performance of water distribution network

Updated on 13/10/2021
Définition
Sens technique

Volume of water consumed by users (private, industrial and other) and the public utility (for the management of the drinking water system) in relation with the volume of drinking water introduced into the supply system.

Source
according to AFB

Water reservoir/tank

Updated on 06/09/2018
Définition
Sens commun
A structure for the storage of water taken from the natural environment before its supply to a system. Water reservoirs are a buffer between water supply and demand.
Source
according to Wikipedia