How does a sand mound system work?

A sand mound system operates by using sand as a critical component of its filtration process. This system is designed to treat wastewater by leveraging the natural filtration capabilities of the sand. After the septic tank has settled and partially treated the wastewater, it is pumped into a sand mound that is raised above the natural ground level.

The sand provides an additional layer of filtration, allowing bacteria and other microorganisms to further break down the organic matter present in the wastewater. As the effluent spreads through the sand, it is naturally filtered, which cleanses the water before it reaches the surrounding soil. This method is especially beneficial in areas where the soil is not suitable for traditional septic systems, such as in places with high groundwater levels or poor soil drainage.

Utilizing sand as a biofilter is essential because it promotes effective treatment of the effluent, reduces the risk of pollution, and helps maintain water quality in the surrounding environment.