Evaluating the effect of enzymatic pretreatment on the anaerobic digestibility of pulp and paper biosludge

Mahmood, 2006, A review of secondary sludge reduction technologies for the pulp and paper industry, Water Res., 40, 2093, 10.1016/j.watres.2006.04.001 Meyer, 2014, Anaerobic digestion of pulp and paper mill wastewater and sludge, Water Res., 65, 321, 10.1016/j.watres.2014.07.022 Elliott, 2007, Pretreatment technologies for advancing anaerobic digestion of pulp and paper biotreatment residues, Water Res., 41, 4273, 10.1016/j.watres.2007.06.017 Ben Rebah, 2013, Fish processing wastes for microbial enzyme production: a review, Biotech, 3, 255 Parawira, 2012, Enzyme research and applications in biotechnological intensification of biogas production, Crit. Rev. Biotechnol., 32, 172, 10.3109/07388551.2011.595384 Wawrzynczyk, 2007, Application of enzymes: sodium tripolyphosphate and cation exchange resin for the release of extracellular polymeric substances from sewage sludge, J. Biotechnol., 130, 274, 10.1016/j.jbiotec.2007.04.005 Recktenwald, 2008, Enhanced efficiency of industrial-scale anaerobic digestion by the addition of glycosidic enzymes, J. Environ. Sci. Health. A. Tox. Hazard. Subst. Environ. Eng., 43, 1536, 10.1080/10934520802293693 Barjenbruch, 2003, Enzymatic, mechanical and thermal pre-treatment of surplus sludge, Adv. Environ. Res., 7, 715, 10.1016/S1093-0191(02)00032-1 Yang, 2010, Enhanced efficiency of biological excess sludge hydrolysis under anaerobic digestion by additional enzymes, Bioresour. Technol., 101, 2924, 10.1016/j.biortech.2009.11.012 Karlsson, 2011, Anaerobic treatment of activated sludge from Swedish pulp and paper mills − Biogas production potential and limitations, Environ. Technol., 32, 1559, 10.1080/09593330.2010.543932 Bayr, 2013, Screening pretreatment methods to enhance thermophilic anaerobic digestion of pulp and paper mill wastewater treatment secondary sludge, Chem. Eng. J., 223, 479, 10.1016/j.cej.2013.02.119 Li, 1990, Structure of activated sludge floes, Biotechnol. Bioeng., 35, 57, 10.1002/bit.260350109 Frølund, 1996, Extraction of extracellular polymers from activated sludge using a cation exchange resin, Water Res., 30, 749, 10.1016/0043-1354(95)00323-1 Bonilla, 2015, Enhancing the dewaterability of biosludge using enzymes, Water Res., 68, 692, 10.1016/j.watres.2014.10.057 Farooq, 1993, Disinfection of wastewaters: high-energy electron vs gamma irradiation, Water Res., 27, 1177, 10.1016/0043-1354(93)90009-7 Edwards, 1994, Anaerobic degradation of toluene and o-xylene by a methanogenic consortium, Appl. Environ. Microbiol., 60, 313, 10.1128/AEM.60.1.313-322.1994 Yang, 2010, Anaerobic treatability and biogas production potential of selected in-mill streams, Water Sci. Technol., 62, 2427, 10.2166/wst.2010.980 Merz, 2015, Flavourzyme, an enzyme preparation with industrial relevance: automated nine-step purification and partial characterization of eight enzymes, J. Agric. Food Chem., 63, 5682, 10.1021/acs.jafc.5b01665 Rodrigues, 2015, Celluclast and Cellic® CTec2: Saccharification/fermentation of wheat straw, solid-liquid partition and potential of enzyme recycling by alkaline washing, Enzyme Microb. Technol., 79–80, 70, 10.1016/j.enzmictec.2015.06.019 Gonzalez, 2006, Molecular basis of formaldehyde detoxification: characterization of two S-formyglutathione hydrolases from Escherichia coli FrmB and YeiG, J. Biol. Chem., 281, 14514, 10.1074/jbc.M600996200 APHA, 1992 Owen, 1979, Bioassay for monitoring biochemical methane potential and anaerobic toxicity, Water Res., 13, 485, 10.1016/0043-1354(79)90043-5 Raposo, 2009, Influence of inoculum-substrate ratio on the anaerobic digestion of sunflower oil cake in batch mode: process stability and kinetic evaluation, Chem. Eng. J., 149, 70, 10.1016/j.cej.2008.10.001 González-Fernández, 2009, Impact of substrate to inoculum ratio in anaerobic digestion of swine slurry, Biomass Bioenergy, 33, 1065, 10.1016/j.biombioe.2009.03.008 Khanal, 2008 Chu, 2011, Effect of gamma irradiation on activities and physicochemical characteristics of sewage sludge, Biochem. Eng. J., 54, 34, 10.1016/j.bej.2011.01.004 Kavitha, 2014, The enhancement of anaerobic biodegradability of waste activated sludge by surfactant mediated biological pretreatment, Bioresour. Technol., 168, 159, 10.1016/j.biortech.2014.01.118