I am looking into some specific values for typical sludge dewatering pathways for municipal sludge.
Ideally, I would like to retrieve energy consumption rates for dewatering techniques (mostly centrifuge and belt presses). Something like typical kWh required per ton of sludge treated.
Does anyone have a literature reference for this? Or maybe commercial flyers for some of the most common pieces of equipment?
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One can test the dewatering capability of sludge by using a Mareco minipress. The test results gives an figure about proper dosing of chemicals, and also give a better founded decission about the right polymer and the dosing of the polymer. Better dewatering capabilites results in lower sludge volume, resulting in lower energy consumprion. So - not an answer about power consumption, but hopefully an idea for energy and chemical reduction.
"Sludge dewatering is often performed applying continuous centrifugation. With a centrifuge, a final dry solids content of about 25% can be achieved. For sludge stabilization a poly‐ electrolyte consumption of about 10 kg per ton SS is required, whereas the energy consumption is about 100 kWh/ton SS. Centrifugation requires relatively high personnel attention" reference: https://courses.edx.org/c4x/DelftX/CTB3365STx/asset/W6c_SlidesTekst.pdf
Thanks! That's exactly the kind of information I was looking for. I eventually decided to take some values from commercial flyers displaying different dewatering units. Then I've interpolated the data, looking for a certain correlation between treated flux and energy consumption
regarding to your inquiry i think that you need to try and utilize a multi screw press plate machine this machine decrease a power consumption and thickner chemical