Soil remediation: mechanisms involved
Non-collective sanitation systems techniques and management - Treatment schemes of domestic wastewater

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Soil remediation: mechanisms involved


Non-collective sanitation systems techniques and management - Treatment schemes of domestic wastewater

Author : Jean-Marc BERLAND

Publication date: November 10, 2023 | Lire en français

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1. Soil remediation: mechanisms involved

1.1 Removal of various pollutants by soil

The infiltration of domestic wastewater through an unsaturated porous medium—such as most soils—reduces pollution through physical and biological mechanisms:

  • suspended solids (SS) by filtration;

  • soluble organic matter (carbon and nitrogen) through biological oxidation, adsorption, ion exchange, and precipitation;

  • pathogenic microorganisms through complex processes of binding, filtration, inactivation, and predation

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