How does a multiple pass filter compare to a single pass sand filter?

A multiple pass filter is designed to offer additional treatment compared to a single pass sand filter. This filtration system allows wastewater to pass through the filter media multiple times, enhancing the degree of clarification and removal of suspended solids, pathogens, and other contaminants. By passing the effluent through the filter multiple times, it significantly improves the overall effectiveness in treating the wastewater.

In contrast, a single pass sand filter treats the wastewater as it flows through the media just once, which may limit the amount of treatment it provides. Therefore, the advantage of a multiple pass system lies in its ability to continuously refine and enhance the quality of the effluent, making it a more effective option for wastewater management.