Patent ID: 9068310
Filing Date: 2015-06-30
Classification: C02F,E02B,Y02A

Abstract:
1. A sediment retention device, comprising: a water-impermeable injection tube having an inlet at a first end and an outlet at an opposing second end; a treatment material disposed within the injection tube; a water-permeable outer containment structure including a containment chamber and a structure inlet connected around the injection tube proximate to the first end, the water-permeable outer containment structure surrounding at least a portion of the injection tube and enclosing the at least a portion of the injection tube within the containment chamber, wherein a liquid flowing from the outlet enters the outer containment structure, and a baffle disposed within the containment chamber in combination with and over the outlet of the injection tube, the baffle defining a baffle chamber around the outlet of the injection tube and the baffle including openings connecting the baffle chamber with the containment chamber.