Belt Filter Press

Document ID: 
TDS-BIO-10-2014

Belt filter presses are utilized in removing water from liquid wastewater residuals and producing a non-liquid material referred to as "cake". By applying pressure to the biosolids to squeeze out the water, the dewatering process serves the following purposes: (i) reduction of volume to reduce storage and transportation costs; (ii) elimination of free liquids before landfill disposal; (iii) reduction in fuel requirements if residuals are to be incinerated or dried; (iv) production of a material which will have sufficient void space and volatile solids for composting when blended with a bulking agent; (v) avoidance of the potential of biosolids pooling and runoff associated with liquid land application; and (vi) optimization of processes such as thermal drying.

Technology Type: 
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