The removal of SS by low rate trickling filters 1

Hi

Could someone please tell me the percentage removal of suspended solids that a standard trickling filter can achieve?

cheers

 

[prodeng]

Typically a filter has a micron rating. This micron rating is an indicator of the pore (hole) size in the filter. Based on the micron rating a percentage is assigned. However, the percentage is really based on the incoming water turbidity (dirt, sand, etc.). I am not familiar with what you call a trickling filter, but the principles of filtration follow what I described above.

 

[DeltaCascade]

A trickling filter actually performs aerobic digestion with micro-organisms fixed on "filter" packing. Suspended solids removal depends upon suspended solid properties (eg: digestable?). All's I can say now is try consulting waste water treatment handbooks, to start... Hope this helps...

 

[gibfrog]

Please check out Wastewater Engineering by Metcalf & Eddy for the bottom line.

Suspended solids in aerobic WW treatmnent usually refers to cell mass or sludge. The trickling filter, being an attached growth media doesn't not produce suspended solids unless it sloughs. (Then chunks, not suspended particles are usually formed)

An activated sludge aeration tank commonly follows a trickling filter. This tank will breed cell mass (SS) to use the food (BOD). A clairifier follows the aeration tank. The clairifier removes the excess SS from the effluent and wastes concentrated SS sludge.

Settling tanks remove SS from the process. Sludge digestors destroy the biological SS.

I hope this helps....

 

[albermuf]

Hello I am so sorry if I have some English mistakes. What I can say is that trickling filters is used mainly for wastewater treatment with loading rate up to 2m/h. It depends on how much wastewater you want to treat. If you have high rates you need more area and also more deep is the reactor. The effluent depends on what kind of filter you are using. You can use stones or plastic filter media. According to that you can have TSS less than 25 mg/l if it is a low rate trickling filter.
You also can check Criters and Tchobanogleous book.
Bye.