Comparing small footprint dewatering systems - for wastewater or brewery waste
Comparing small footprint dewatering systems - for wastewater or brewery waste
(OP)
I am considering using one of two small-footprint methods for dewatering a ferment solid. The material is not unlike beer mash, and I was wondering if anybody here has experience with either type of equipment.
The first method would incorporate a rotary drum thickener with a circular filter screen on the outside diameter. The solids are pumped in, and the rotation draws the water to the outer compartment which is then drained.
The second method uses a vibratory screen to shake the solids along a conveyor. The bottom of the conveyor is composed of perforated stainless steel, and the shaking motion retains the solids on top while allowing the water to drain out from a port.
The first method would incorporate a rotary drum thickener with a circular filter screen on the outside diameter. The solids are pumped in, and the rotation draws the water to the outer compartment which is then drained.
The second method uses a vibratory screen to shake the solids along a conveyor. The bottom of the conveyor is composed of perforated stainless steel, and the shaking motion retains the solids on top while allowing the water to drain out from a port.





RE: Comparing small footprint dewatering systems - for wastewater or brewery waste
These are also commonly used for slurry, just need to find a manufacturer that can also make them in food grade.
Capture rate for TS is around 40-50%, I don't know if this is acceptable to you.
I don't think the screen will work very well. I think some mechanical pressure is neccessary to squeeze your mash. Similar doubts about the drum thickener.
RE: Comparing small footprint dewatering systems - for wastewater or brewery waste
Neither of the processes you mention will get the cake very dry. I would be surprised if you would do much better than 5% solids (as in still 95% water).
I agree with MartinLe you will have to have something that applies pressure eg: filter screw press, centrifuge , belt filter press just to name a couple.
Regards
Ashtree
"Any water can be made potable if you filter it through enough money"
RE: Comparing small footprint dewatering systems - for wastewater or brewery waste
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Comparing small footprint dewatering systems - for wastewater or brewery waste
RE: Comparing small footprint dewatering systems - for wastewater or brewery waste
http://cleantekwater.com/products/rotosieve-screen...