Dewatering Silt Filter
Dewatering Filter to be Hauled on a Flatbed
Question: regarding a dewatering silt filter: I am looking for a dewatering silt filter other than a bag or tube.
I have seen tanks in use that have disposable nonwoven geotextile fabric draped across them to filter sediment. They have inlets that allow for 2, 3, 4 , and 6" pump hoses and they have an outlet with a valve to control discharge. We need something that can be hoisted with track excavator and can be hauled on a flatbed truck.
I am afraid they may be home made. But I believe that the geotextile liners used in them are manufactured. They are like an open box, with a bottom and 4 side walls. They should have an open top.
We would need a varying but continuous supply. We would probably use 100/year. They would need to be fitted to our dumpster that we have not made yet (most likely 8 feet x 16 feet by 2 feet height).
However, if we are designing and making the unit on our own, it may be more economical to allow for the installation of geotextile from a roll.
Answer: Thank you for contacting us! We would be happy to provide you with a dewatering bag that could serve the purpose you have described. As an overview we do offer these bags for roll-off containers, or we can customer make a filtering bag/material in the quantities that you are requiring.
In general, all of our Dewatering Bags are build from a nonwoven geotextile material similar to the one that you have described. This material is needle punched to allow water to filter out, while sediment and silt are retained.
These filtering bags are often placed directly into containers such as dump trucks, roll of containers, and more. This can allow the bag full of sediment to be easily transported with contained materials. From this container, water can then be drained from the box.
Additional Filtering Options
Depending on how much silt you need to filter out, you might also consider something like a Filter Sock.
These materials can be connected directly to an inlet or outlet to filter water as it flowing out of the drain. These silt filter materials are one of may in our collection of BMPs (Best Management Practices).
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