The need for emergency silt control on construction sites is often associated with unexpected rainfall. If excess water cannot be treated or stored, then there are a number of measures that can be taken to control pollution caused by muddy water leaving site.
frog environmental offer a standard silt control response kit comprised of Silt Mats™ and Silt Wattles that can be used in construction site drainage ditches to slow the flow and trap silt or on land to prevent dirty water spilling into streams.
The treated silt control response kit is comprised of Floc Mat™TM, Silt Mats™ and Silt Wattles. This incorporates Gel Flocculant, a synthetic anionic flocculant that targets fine clays in suspension. It is particularly effective if pumping muddy excavations across a dispersion field. The use of flocculants should be agreed with the regulator and Floc Mat™ should not be used in a natural watercourse.
All products found in the frog environmental emergency silt control kits can be purchased individually.
Standard Silt Response Kit: 10 Silt Mats™; 5 Silt Wattle each 30cm diameter by 2m; laminated tool box talk; guidance on use of the kit *please note this does not come with fittings/pegs. All materials should be stored in dry place or under tarpaulin.
Treated Silt Response Kit: 5 Floc Mat™TM; 5 Silt Mats™; 5 Silt Wattle each 30cm diameter by 2m; laminated tool box talk; guidance on use of the kit *please note this does not come with fittings/pegs. All materials should be stored in dry place or under tarpaulin.
A Pipe Reactor can be included with the treated silt response kit to support the effective treatment of water pumped from muddy excavations, following best practice guidelines that ensure the silts separated from the water are collected. Pipe Reactor can either be gravity fed or used with a 3” or 4” pump, depending on site topography and flow rate requirements.