Patent ID: 8883005
Filing Date: 2014-11-11
Classification: C02F,Y02W

Abstract:
1. A portable water treatment device comprising: (i) a flexible shell comprising a Flexible Intermediate Bulk Container outer shell and a plastic inner liner, wherein the Flexible Intermediate Bulk Container outer shell and the plastic inner liner together define an internal chamber, the internal chamber having a first end for influent of a water source and a second end for effluent of treated water; (ii) a porous underdrain positioned within the internal chamber between the first end of the internal chamber and the second end of the internal chamber and dividing the internal chamber into two portions; (iii) a filter bed comprising sand, wherein the filter bed is supported within the internal chamber between the first end of the internal chamber and the porous underdrain, wherein the filter bed is constrained by the flexible shell and wherein the filter bed has an upper surface area opposite the porous underdrain of about 1.00 m (iv) a flow control device in fluid communication with the second end of the internal chamber, the flow control device providing for an exit flow rate of 0.1 to 0.2 m (v) a Schmutzdecke formed within the flexible shell on or within the filter bed opposite the porous underdrain wherein the Schmutzdecke and filter bed cooperate to provide for filtration of influent water having a turbidity of equal to or less than 10.00 NTU to an effluent turbidity after the Schmutzdecke and filter bed of less than 1.00 NTU.