Patent ID: 6200469
Filing Date: 2001-03-13
Classification: C02F,Y02W,Y10S

Abstract:
A system for removing pollutants from water, the system comprising:an impermeable primary treatment cell substantially disposable within the earth and including a horizontal linear dimension, the horizontal linear dimension with a first end and a second end, the primary cell including:an inlet for providing a flow of polluted water disposed proximate the primary treatment cell first end,bed media including bed media particulates that exclude any adhesive connections therebetween,wetland vegetation rooted in the bed media,aerobic and anaerobic bacteria disposed proximate the bed media particulates,means for air injection disposed proximate a bottom portion of the primary treatment cell and configured to establish a plurality of aerobic zones in the flow of polluted water and exterior to said bed media particulates by injecting air at a plurality of locations horizontally spaced along the primary treatment cell linear horizontal dimension and at least one anaerobic zone in the flow of polluted water disposed horizontally between the aerobic zones and exterior to said bed media particulates, andan exit disposed proximate the primary treatment cell second end, the polluted water flowing substantially horizontally from the inlet, through spaces between the bed media particulates, and out the exit, the pollutants being removed as the water flows through the plurality of aerobic zones and at least one anaerobic zone when flowing through spaces between the bed media particulates.