Vortex sediment separation
Vortex sediment separation
(OP)
Has anyone worked with a vortex sediment separation facility? I'm talking 800cfs, gravity powered. I've seen references to them overseas, and that they worked well, but I haven't found one in the US or with any specific design information.
Check out www.cis.umassd.edu/gleung/cawfo/conf12.htm
Any help will be much appreciated.
Thanks
Check out www.cis.umassd.edu/gleung/cawfo/conf12.htm
Any help will be much appreciated.
Thanks





RE: Vortex sediment separation
check out www.cis.umassd.edu/~gleung/cawfo/conf12.htm
A cool idea... I'd like to use it, but I'm having some trouble finding resources.
Thanks for any help
RE: Vortex sediment separation
But I assume you are looking to use in a treatment plant?
RE: Vortex sediment separation
You have two options;
A) Put a scraper in to collect the solids, or
B) Put a 55 Deg slope in the bottom to collect the solids.
Otherwise, the thing is just going to fill up with solids.
RE: Vortex sediment separation
Yes, the thought was to put a steep bottom on it to prevent buildup and direct the sediment into the center drain. BRIS, please tell me more about maintainence. This will be on the headworks of a flume to a power plant.
Thanks a lot
RE: Vortex sediment separation
The project was in Pakistan where maintenance is a problem
RE: Vortex sediment separation
1. You said "course sediment" was removed. Can you give me an approx size that was removed/remained in suspension after treatment?
2. Do you suppose that the basin would be reliable if we send the sediment right back to the river and mechanical removal isn't required or if removal was regular?
3. Can you hook me up with some design references?
Thanks a lot!
RE: Vortex sediment separation
Have you thought about using a lake? I am familiar with a power plant that uses a cooling lake. Water is obtained from a river and pumped to the lake. Cooling water is then taken from the lake.
RE: Vortex sediment separation
Low energy swirl concentrators are commonly used to treat storm water with sizes ranging from .5 cfs to 10 cfs in off the shelf units and up to 120 cfs in off the shelf designs. There are several manufacturers of such devices many of whom may be able to help out in the design of a larger unit or setting up several units in parallel.
These units typically remove particles in the 250 micron down to 75 micron depending upon the type, model and size with up to 80% efficiency. At the flow you are looking at a maintenance system would need to be built into the unit cause all that sediment has to go someplace.
As storm water treatment devices, the removal of 1 to 2 tons per peak cfs per year is typical. but remember your application is continuous not intermittent like storm water treatment devices.
The above listed website, is not entirely accurate on the power requirements, there are head losses in any such device as well as losses in process water to flush the sediment away
Hydrae