Nowadays, the most common ways to dispose of acid tars and paper production waste are burial or incineration, but it is ecologically economically expedient use such in building materials. A new variant filler aggregate—wastepaper sludge ash (paper waste) a chemical activator for aggregates—acid tar (oil-refining industry proposed. Elemental mineralogical compositions wastepaper comparison with ...

The enzymatic hydrolysate of wastepaper was evaluated for its cellulase-inducing capability and production characteristics in continuous culture of Trichoderma reesei RUT C30. Under the study conditions, i.e., pH 5.0, temperature 25 degreesC, and typical medium C:N ratio, the apparent cell yield constant was found to be 0. 76 (g of dry cell weight/g of reducing sugar), and the maximum specific ...

Recycled fiber use introduces fines, fillers, microbiological contaminants and stickies contaminants to the papermaking system. Deinking processes are designed to remove or control these contaminants. Important considerations in selecting a deinking processes are the type of wastepaper to be deinked and the desired quality of the deinked pulp. These will determine the extent to which contaminan...

Abstract This study investigated the anaerobic digestion of an algal–bacterial biofilm grown in artificial wastewater Algal Turf Scrubber (ATS). The ATS system was located a greenhouse (50°54?19?N, 6°24?55?E, Germany) and exposed to seasonal conditions during experiment period. methane (CH 4 ) potential untreated (UAB) thermally pretreated (PAB) using different microbial inocula determined by b...

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