pretreatment technology

[CathyJiang]

My company has a product of coalescing separater, which is used to treat oily wastewater. It includes separater vessel and coalescing cartridges. These cartridges will be clogged if wastewater has too much suspended solid. So in order to extend the lifetime of coalescing cartridges, we have to increase pretreatment equipment before using separater. It requires the pretreatment could remove all the suspeneded solid whose particle diameter is more than 25 micron.But we have not found optimal pretreatment method.
Everyone, would you please give me some suggestion which treatment technology could be used as pretreatment method?

 

[bimr]

One would think that a standard API oil/water separator should work. API separators are used to remove oil from water and typically should reduce the oil to less 10 mg/l. If you have a large amount of settleable solids, you can add a bottom scraper.

Alternatively, you can investigate the use of dissolved air flotation.

 

[waters]

Check your hydraulic and solid loading rate acccoding to influent quality.

DAF will be good solution if present system shows insufficient capacity.

 

[OSUBeaver]

Try

http://www.stormwaterinc.com

 

[Trio3]

II would consider a hydrocyclone to remove suspended solids, thenm through your process and then ozone to clear it up

 

[MS1128]

Stormdrian Solutions manufactures a PolyDak filter that captures particles larger than .04 microns. Visit

http://www.stormdrains.com

for additional information.