| 摘要 |
<p>A biofiltering system (40) for treating wastewater effluent for dissipation through an effluent absorption area (12) and into earth (14) beneath the effluent absorption area is disclosed. The biofiltering system (40) comprises a bed of peat (16) overlying the effluent absorption area, the peat defining a biofiltering medium having a predetermined biofiltering capacity, and a fluid flow regulating unit (56) for allowing 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. The system further includes a predetermined number of spaced apart, elongated distribution conduits (20) arranged over the bed of peat and in fluid flow communication with the flow regulating unit, each distribution conduit having a plurality of discharge orifices spaced longitudinally therealong, for distributing the wastewater effluent through the bed of peat in a manner such that wastewater discharged from the distribution conduits through the orifices flows through the bed of peat at a flow rate no greater than the biofiltering capacity of the peat. The biofiltering system according to the invention enables one to efficiently treat large quantities of incoming wastewater irrespective of the flow rate thereof.</p> |
