2. Extensive natural pretreatment
Wherever possible, natural purification processes should be used. These include long-term storage and percolation through the soil.
2.1 Storage
Storage can have two objectives: to create a reserve that gives the distributor an additional degree of freedom in the hydraulic management of the resource, or to modify the quality of the raw water; in the most general case, both aspects need to be taken into consideration.
With a reserve of 24 to 48 hours, the main aim is to be able to dilute or even bypass an accidental pollution wave. This is an important objective when industrial zones are located upstream of the intake point. The benefits of such a reservoir can already be seen in the lowering of water turbidity, provided that the basin...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference
This article is included in
Public works and infrastructure
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Extensive natural pretreatment
Bibliography
Water databases
-
Specific bases :
EAUDOC :
Producer: International Office for Water (IOW)
Server : Cerdic
WEB : http://www.oieau.fr
AQUALINE :
Producer: Water Research Centre...
Organizations
Germany (Federal Republic of)
Arbeitsgemeinschaft Rhein-Wasserwerke e.V.ARW
Arbeitsgemeinschaft Wasserwerke Bodensee-RheinAWBR
Bundesvereinigung der Firmen im Gas- und WasserfachFIGAWA
Deutsche Vereinigung des Gas- und Wasserfaches e.V. Technisch-wissenschaftlicher VereinDVGW Web : http://www.dvgw.de
...Reviews
France
Adour Garonne (Adour Garonne Water Agency)
Annales de limnologie (Gauthier-Villars)
Annales des mines, industrial realities, managing and understanding
Aqualogie, the water refining magazine (Union des entreprises d'affinage de l'eau)
Bulletin français de la pêche et de la pisciculture (French fishing and fish farming...
Standardization
Acidity
- Qualité de l'eau. Détermination du pH. - NF T 90-008 - 2.01
Surfactants
- Agents de surface. Détergents. Agents de surface anioniques. Détermination de la biodégradabilité. - NF T 73-260 - 6.81
- Agents de surface non-ioniques. Détermination de la biodégradabilité. - NF T 73-270 - 5.83
Algae
- Qualité de l'eau. Essai d'inhibition de la croissance des algues...
Manufacturers – Suppliers
Générale des eaux – Vivendi Water France
Suez – Lyonnaise des eaux
Vivendi Water Systems – OTV
Ondéo – Degrémont SA
Trailigaz (Sté)
SAUR
Bonna – Sabla
Sade CGTH (Cie Générale de Travaux d'Hydraulique)
Saint-Gobain...
Laboratoires
Official laboratories of the Ministry of Health approved for sanitary control of water (decree of October 31, 2001)
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
The Ultimate Scientific and Technical Reference