Valorization of Paper Mill Sludge in Novel Bioproducts, TAPPICon22

Over the past decade, an intensive interest has been placed on the production and utilization of nanofibrillated cellulose (NFC) as a process additive for an augmenting number of industries. The high energy demand for NFC production results in a need to reduce costs associated with this manufacturing process. As interest in CNF within the paper industry continues to grow, there is also a growing need to address the high costs associated with the waste streams of paper mill sites. This study demonstrates the production of micro and nano-fibrillated cellulose (MNFC) from paper mills sludge through a series of procedures as follows: the paper mill sludge is screened to remove contaminants, enzymatically deteriorated to weaken the fiber walls, and then ultimately refined and fibrillated.

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