METHODS FOR INSTALLING AND USING PAPER-ENCLOSED FILTER MEDIA UNITS IN AN EFFLUENT TREATMENT SYSTEM

摘要

A method for installing and using paper-enclosed filter media units in an effluent treatment system. The paper-enclosed filter media units are preferably pre-filled off-site and transported to the installation site via commercial vehicle. The filter media units are then installed underneath the ground and connected to a treatment system. The filter media units contain at least one perforation and are preferably filled with expanded polystyrene (EPS) beads. In practice, the effluent enters the filter media unit through the at least one perforation in the filter media unit and trickles through the media where it is treated before being distributed beneath the filter media unit. The filter media unit preferably is comprised of a plurality of perforations, facilitating the entry of effluent in the filter media unit and the distribution of effluent into the ground. The method optionally is further comprised of a distribution grid which distributes the effluent horizontally across the top of the filter media unit.