7. Conclusion
The flow rates and concentrations of wastewater produced by on-site sewage systems are much more variable than in collective systems. Periods without wastewater input, lasting from a few days to several weeks, are present, requiring systems well adapted to these conditions. A review of the three main technological families and the performance measured under in-situ conditions shows that systems incorporating a biological filter are much better suited to the realities of on-site wastewater treatment. The performance of microstation-type systems is much more variable, due to inadequate sizing or maintenance, resulting in the discharge of sludge into the receiving environment. However, even where a filter medium is present, compact filters must be designed to meet fundamental criteria in terms of sizing (minimum 0.50 m 2 /EH), effective distribution...
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- (1) - MINISTÈRES EN CHARGE DE L'ÉCOLOGIE ET DE LA SANTÉ, CERIB ET CSTB - Cadre destiné aux opérateurs économiques pour la procédure d'agrément des dispositifs d'assainissement non collectif. - http://www.assainissement-non-collectif.developpement-durable.gouv.fr/IMG/pdf/16_10_2023_-_cadre_de_la_procedure_...
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