Patent ID: 8518268

Claim:
A mobile water filtration apparatus for transportation to, and operation at, on-site soil and environmental disturbances operations for removal of contaminants from raw water at the site comprising: a portable filtration apparatus platform; a first settling tank secured with respect to the platform, wherein the settling tank includes a holder having a flocculating agent therein in the raw water flow path and the flocculating agent flows with the water through the holder, the first settling tank further including a lower portion into which sediment settles; a sloped trough secured with respect to the platform including an axis defining a flow direction, the trough comprising: an upper end which receives the flocculating-agent-containing water; a lower end; a plurality of spaced-apart walls between the upper and lower ends transverse to the axis which define a serpentine flow path between the upper and lower ends that is greater than the axis, a plurality of agitators between the walls and in the flow path which obstruct flocculating-agent-containing water flow to facilitate contact between flocculating agent and contaminants in the water; and a terminal settling tank secured with respect to the platform which receives flocculating-agent-containing water from the trough lower end, the terminal settling tank including a lower portion into which sediment settles and an outlet along a terminal settling tank upper portion through which treated water flows.