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1. Soil purification
1.1 Pollutant removal by soil
Infiltration of wastewater through an unsaturated porous medium reduces :
suspended solids (SS) by filtration ;
soluble organic matter (carbon and nitrogen) by biological oxidation, adsorption, ion exchange and precipitation;
pathogenic micro-organisms through complex processes of fixation, filtration, inactivation and predation .
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Soil purification
Purification systems decree of September 7, 2009
Bibliography
Websites
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IMA – International Mineralogical Association
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Toilets of the world
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Recommendations for the safe use of...
Events
Each year, the Assises Nationales de l'Assainissement non collectif is held in a different city.
Standards and norms
- AFNOR; Installation of on-site sanitation systems – Single-family homes with up to 10 main rooms. - XP DTU 64.1 -
- AFNOR – CEN; Prefabricated septic tanks. - EN 12566-1 + A1 -
- AFNOR – CEN; Soil infiltration systems. - CEN/TS 12566-2 -
- AFNOR – CEN; Domestic wastewater treatment plants ready for use and/or assembled on site. - EN 12566-3 + A1 -
- AFNOR – CEN; Septic tanks built in situ...
Regulations
Law on water and aquatic environments (LEMA) of December 30, 2006 (consolidated version as of July 14, 2010)
French Water Act no. 92-3 of January 3, 1992
Law n° 64-1245 of December 16, 1964 relating to the regime and distribution of water and the fight against its pollution
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