Patent ID: 8894866
Filing Date: 2014-11-25
Classification: B01D,C02F,E03F,Y02A

Abstract:
1. A system for treating storm water flowing from a selected watershed surface in compliance with low impact development regulations, including an underground infiltration structure, a treatment unit that removes suspended solids and hydrocarbons from the storm water flowing through said treatment unit, said treatment unit having a sufficient volumetric capacity to treat a predetermined initial fraction of the storm water flowing from the watershed surface into the treatment unit through an inlet to the treatment unit at a controlled predetermined rate to be in compliance with the low impact development regulations governing said selected watershed surface, piping structure interconnecting the system inlet upstream with the treatment unit inlet and interconnecting the treatment unit upstream of the infiltration structure so that storm water from the watershed flows into the ground through the infiltration structure, and a bypass line including an inlet in communication the system inlet and the treatment unit inlet so that, when the rate of storm water flowing to the treatment unit inlet is at a rate greater than said controlled predetermined rate, any excess water entering the system is diverted to the bypass line inlet, said treatment unit has one or more outlets in communication with the infiltration structure, said outlet, or outlets in combination, having a predetermined cross-sectional area to enable storm water flowing into the treatment unit to exit the treatment unit at a rate at least equal to the rate at which storm water flows into the treatment unit.