![]() Therefore, a feasible process for converting these reject fines into sugars can profit the paper mills by producing value for their waste products while simultaneously mitigating their adverse environmental impact by avoided solid waste. The major component of these rejects is cellulose that can be a potential source of fermentable sugars for biofuels, bioplastics or other products. These fines are usually rejected into the solid waste stream that further requires land filling and poses environmental problems. A significant fraction of short fibers commonly called “reject fines” is produced while recycling wastepaper at paper mills producing linerboard.
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