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Water Treatment Service
Site-specific polymers can be used to clarify stormwater, removing sediment and reducing the total suspended solids. It is far better erosion control to treat the soil on the site, before it has a chance to wash off-site. Water treatment as well, is much easier when the soil is treated at the source. Less sediment being picked up by stormwater means the less sediment that is moving off site, the less turbid your stormwater is, and ultimately the more cost effective solution.
Polymer Enhanced Stormwater Treatment Ditches are used to introduce site-specific polymers to turbid waters in such a manner to facilitate mixing and reaction between the polymer and the suspended particles. The Floc Logs® are designed for use in flowing conditions and can be used with passive flow or active pumping systems. Mixing and reaction time with the Floc Logs® is extremely important to ensure the suspended sediment is fully flocculated.
Collection of the flocculated particulate that forms will greatly reduce the turbidity of the stormwater. The particulate formed can be captured by filtering through silt fence, mulch, straw, settling in a sediment pond, or flowing over jute fabric after the mixing reaction has been completed to increase final water clarity.
Primary Sediment Pond / Grit Pit:
A primary sediment pond or grit pit may be required to reduce the sediment load before treatment. These are placed "upstream" of the mixing system to prevent sediment from burying the mixing system with excess sediment loads. It allows the heaviest sediment to settle out prior to treatment with the polymer. If sediment loads of the turbid water exceed 40,000 NTU or 4% solids, such as in active dredging operations, we suggest including a primary sediment pond or grit pit.
Mixing / Reaction Systems
To introduce site-specific Floc Logs® to turbid waters in such a manner to facilitate mixing and reaction between the polymer and the suspended particles.
Open ditch design:
A ditch is created, either by digging out the bed or building up the walls. The site-specific Floc Logs® are secured along the ditch, allowing the water to flow over and around them. Checks can be placed along the ditchline to increase turbulence and mixing with the Floc Logs®.