Abstract: A biofiltering system for treating wastewater effluent (e.g. from a septic tank) through a bed of peat 16 overlying an effluent absorption area 12 and into the earth beneath 14. The bed of peat has a predetermined biofiltering capacity. A fluid flow regulator 18 upstream from the peat is adapted to allow the effluent to flow at a rate greater than the peat bed biofiltering capacity. However, a distribution system arranged over the peat is configured such that wastewater received from the fluid flow regulator flows through the peat bed at a rate no greater than the peat bed biofiltering capacity. The distribution system 20 includes a plurality of spaced-apart, elongated distribution conduits 72 having discharge orifices 74 spaced longitudinally therealong. The biofiltering system allows large quantities of wastewater to be efficiently treated irrespective of the flow rate thereof.

Abstract: A biofiltering system for treating wastewater effluent for dissipation through an effluent absorption area and into earth beneath the effluent absorption area is disclosed. The biofiltering system comprises a bed of peat overlying the effluent absorption area, the peat defining a biofiltering medium having a predetermined biofiltering capacity, and a fluid flow regulator for allowing to the wastewater effluent to be treated to flow at a flow rate greater than the biofiltering capacity of the peat, while not exceeding a predetermined threshold value.