Sediment Dewatering Bag
Question: I would like info on a sediment bag for dewatering project. I would like to get more information on your sediment bag. I'll need to store/dewater about 250 CU YDs of dredge material; that's in-place material...I understand it will expand to approximately 1000 cu yds. What sizes are available in the 10 oz. non woven?
Answer:
Thanks for contacting Granite Environmental! I'd be happy to provide you with more information on our 10 oz. non woven sediment bag. These sediment bags can be made in a wide range of sizes, with standard sizes in the following dimensions:
- 6' x 6'
- 15' x 10'
- 15' x 15'
- 15' x 20'
- 15' x 20'
These sizes can provide you with several different volumes and capacities for storing and later disposing of your dewatered sediment, silt, sand, dirt and other materials.
Dewatering bags should be sized based on the volume of water being pumped (pump flow rate), quantity and type of sediment and the permittivity of the given bag size. Consideration should also be given to location. (Steep sloped surfaces are typically not recommended as the bag may roll). Placement may be in a 20’ drop box, dump truck or similar for containment to facilitate transportation.
Additional Sediment Bag for Dewatering Project Information
Our sediment dewatering and filter bag is fabricated using heavy duty needle punched filter fabric (non-woven geotextile) which provides high permittivity (water flow) and a fine pore structure that allows water to flow through freely, while preventing fine soils from piping through.
It is also an economical and effective way to keep within NPDES phase II and Clean Water Act compliance and avoid shut downs and/or fines for not removing material like sediment and organics from pumped water and possibly exceeding TSS permit levels.
Each sediment bag can handle a 2”, 3” or 4” discharge hose. (The hose can be placed along any edge by making a small incision into the fabric, inserting the hose and then clamping the fabric to the hose via wire, ties, clamp, rope or similar to create a good seal.)
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If you have any additional questions regarding the sediment bag for dewatering project, please contact our Granite Environmental sales team at +1 (772) 646-0597 or TOLL FREE at: (+1) 888-703-9889
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